Caterpillar 521
Caterpillarforest productstrack feller buncher

Caterpillar 521

Maintenance schedule, common problems & OEM parts breakdown

The Cat 521 is a track-mounted feller buncher and track harvester built for mechanized clear-cut and select-cut logging, part of Caterpillar's 511/521/522/532 forestry family. The base 521 (roughly 2006 through 2012) runs a Cat C9 ACERT engine rated 284 hp gross / 263 hp net on a tail-swing carbody with D6H HD-class undercarriage components. Caterpillar replaced it from December 2012 with the 521B, a zero-tail-swing redesign carrying the same C9 ACERT family engine bumped to 303 hp gross / 282 hp net, paired with heavier 330/D7-class undercarriage hardware. Operating weight runs roughly 26,000 to 27,500 kg (57,000 to 62,000 lb) depending on feller-buncher versus harvester configuration and felling head fitted. Cat offers the platform as a Track Feller Buncher or Track Harvester, factory-fitted with the Cat HF201B felling head in Full Tilt (330 degree) or Partial Tilt (40 degree) form, standard or auxiliary fuel tank, and Parker IQAN electro-hydraulic boom control run through an MD3 cab display.

The move from base 521 to 521B was Caterpillar's response to years of field feedback on tail-swing bunchers working tight cut blocks and rough ground: zero tail swing improved maneuverability, the larger D7-class undercarriage and roughly double the fuel and hydraulic capacity of the base machine extended shift duration and service life, and the added engine power shortened felling cycle times. Both series trace to forestry engineering Caterpillar brought in-house through its 2007 acquisition of Blount International's forestry division, which is why the 511/521/522/532 line reads as a single family rather than a one-off model. In the used and parts market this matters because the two series are not interchangeable at the undercarriage, swing drive or hydraulic-circuit level — buyers and parts counters need to confirm which series a machine is before ordering rollers, links, swing components or hydraulic hardware. High cycle counts and constant swing-and-shock loading in forestry duty make undercarriage, swing drive and felling head wear parts the highest-turnover items across both series, keeping demand steady for good used 521/521B machines and their wear components.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.

Caterpillar 521 specifications

Engine

Engine model (521, all configurations)Cat C9 ACERT, 6-cylinder diesel
Gross power (521)212 kW (284 hp) at 2100 rpm
Net/rated power (521)196 kW (263 hp) at 2100 rpm
Engine model (521B series)Cat C9 ACERT, 6-cylinder diesel
Gross power (521B)226 kW (303 hp) at 1800 rpm
Rated power (521B)210 kW (282 hp) at 2100 rpm
Displacement8.8 L (537 cu in), all series
EmissionsMeets U.S. EPA Tier 2 / current emission standards depending on model year; ACERT electronic control on both series

Weights

Operating weight, feller buncher config (521, base series)27,084 kg (59,710 lb), without felling head
Operating weight, harvester config (521, base series)26,050 kg (57,440 lb), without harvesting head
Operating weight (521B, without head, standard counterweight)approx. 27,000-27,500 kg (59,500-60,600 lb); factory literature gives 27,501 kg (60,629 lb) as the headline figure
Ground pressureNot published in factory literature for this class; not documented

Dimensions

Shipping length, without attachment (521 base)8.64 m (340 in)
Shipping length, with attachment (521 base)10.95 m (431 in)
Overall width, minimum (521 base)3.2 m (126 in / 10.5 ft)
Height to top of cab (521 base)3.56 m (140 in / 11.67 ft)
Track gauge, standard2.59 m (102 in), both 521 and 521B; harvester config offers a widened gauge option up to 2.87 m (113 in)
Track length (521 base)4.80 m (189 in)
Track length (521B)4.86 m (191.1 in)
Ground clearance, feller buncher config70-71 mm (2.75-2.8 in)
Ground clearance, track/harvester config (521 base)838 mm (33 in)
Ground clearance (521B)889 mm (35 in)
Undercarriage (521 base)D6H HD undercarriage, shoe width approx. 610 mm (24 in), pitch 203 mm (8 in)
Undercarriage (521B)330 EX (D7) undercarriage, pitch 216 mm (8.5 in)

Performance

Maximum boom reach without head8.1 m (26.5-26.6 ft), both series
Maximum reach with head (harvester config)9.8-9.9 m (32-32.2 ft)
Bare-pin lift capacity at max reach (521 base)7,100 kg (15,600 lb) at 6.1 m (20 ft) reach
Lift capacity at longer reach (521 base)4,100 kg (9,100 lb) at 9.0 m (29.5 ft) reach
Bare-pin lift capacity (521B)approx. 4,000-6,100 kg (9,000-13,500 lb) depending on reach; figures vary by configuration/series
Tractive effort31,978 kg (70,500 lb), both series
Maximum drawbar pull (harvester config)30,118 kg (66,400 lb)
Travel speedNot published as a numeric figure in factory literature; described as infinitely variable, with three selectable travel-speed ranges on the B-series
GradeabilityNot published in factory literature for this model line; verify with your dealer

Service capacities (summary)

Fuel tank (521 base)530 L (140 gal)
Fuel tank (521B)856 L (226 gal)
Hydraulic system, total (521 base)300 L (79.3 gal), of which the tank holds 262 L (69.2 gal)
Hydraulic system, total (521B)448 L (118 gal)
Engine oil39 L (10.3-10.4 gal), consistent across both series
Cooling system (521 base)61 L (16.1-16.2 gal)
Cooling system (521B)41 L (10.8 gal)
Swing drive10 L (2.6 gal)

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

521 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter) - Cat C9 ACERT diesel39 L (10.3 US gal)Cat DEO or DEO-ULS multigrade diesel engine oil. Grade by ambient air temperature: SAE 10W-30 in cold climates, SAE 15W-40 for general/warm service above about -9.5 C (15 F), SAE 40 in sustained hot climates. Use API CJ-4/CK-4 or Cat ECF-3 quality oil for the ACERT emissions package.
Cooling system61 L (16.1 US gal) per most factory spec charts; some listings show roughly 41 L for this configuration - varies by configuration/series, confirm against the nameplate-specific OMM chartCat ELC (Extended Life Coolant/Antifreeze), premixed or concentrate to the specified freeze protection. ELC supports the long coolant change interval (up to 12,000 hours / 6 years) versus a conventional low-silicate coolant, which needs much shorter intervals and an extender treatment partway through life.
Fuel tank530 L (140 US gal) standard main tank; some spec databases list a combined figure near 856 L, reflecting the optional auxiliary tank added to the main tank - varies by configurationUltra-low-sulfur diesel (ULSD) meeting the engine's emissions certification. No biodiesel blend above the level stated in the engine fluids manual without dealer confirmation.
Optional auxiliary ("pony") fuel tank341 L (90 US gal), added to the standard main tank on machines so equippedSame ULSD specification as the main fuel tank.
Hydraulic tank262 L (69.2 US gal)Cat HYDO Advanced (10, 15W-40, or 30 grade selected by ambient temperature) or Cat BIO HYDO Advanced where a biodegradable fluid is required. HYDO Advanced's oxidation stability supports extended drain intervals when paired with S.O.S oil sampling.
Hydraulic system total (tank plus lines/cylinders/motors)300 L (79.3 US gal) per most factory spec charts; a small number of listings show a much higher combined figure (up to roughly 448 L) - varies by configuration/series, confirm against the nameplate-specific OMM chartSame Cat HYDO Advanced / Bio HYDO Advanced fluid as the hydraulic tank; do not mix grades within the same circuit.
Swing drive housing9.8-10 L (2.6 US gal)Cat TDTO (Transmission/Drive Train Oil), grade selected by ambient temperature range (10W, 30, or 50).
Final drives / travel motor housings (each side, ZTS undercarriage)Not broken out as a separate refill line on published factory spec charts for this model; travel motor/final drive lubrication is serviced per the undercarriage section of the OMM rather than as a standalone tank - verify exact fill quantity with a Cat dealer for the specific serial rangeCat TDTO transmission/drive train oil, same family as the swing drive, grade by ambient temperature.
Grease points (felling head, boom, and undercarriage pins - spec only, no fill volume)Not applicable - lubricated by grease gun at scheduled intervals, not a fill capacityCat Advanced 3Moly Grease or Cat Extreme Application (XTM) Grease, NLGI 2, for high-load felling head and linkage pins. Cat multipurpose grease (NLGI 2) for standard chassis and boom grease points.

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar 521 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level, coolant level and fuel level before startup, and drain water/sediment from the fuel tank water separator
  • Walk around the undercarriage checking track tension, roller and idler seals for oil leaks, and shoe condition
  • Inspect the felling head saw disc or shear knives for damage, dull edges or loose mounting hardware
  • Grease the felling head tilt cylinder pins and head rotation bearing at end of shift if working in wet or abrasive ground
  • Check swing bearing and swing gear grease level weekly and top off boom/stick pin-bushing grease points
  • Clean cab intake screens and check for hydraulic or fuel leaks around the engine bay weekly
Every 250 h
  • Change engine oil and filter per the S.O.S-supported Cat DEO/DEO-ULS schedule for the C9 ACERT
  • Replace the primary fuel filter element and check the fuel/water separator bowl
  • Pull S.O.S samples of engine oil, hydraulic oil and coolant for trend analysis
  • Check engine cooling fan and alternator belt tension and condition
  • Check swing drive oil level (Cat TDTO, roughly 10 L capacity)
  • Inspect the hydraulic tank breather and suction strainer
Every 500 h
  • Replace the engine oil filter and secondary fuel filter
  • Inspect turbocharger mounting, boost lines and clamps for leaks
  • Check IQAN hydraulic control calibration and inspect harness wiring for chafing on the boom and felling head circuits
  • Clean or replace cab fresh-air and recirculation filters
  • Inspect the swing drive and final drives for case leaks or contamination
  • Check battery electrolyte level and clean terminals
Every 1,000 h
  • Change swing drive oil (Cat TDTO)
  • Replace the secondary air filter element
  • Inspect high-pressure hydraulic hoses on the boom, stick and felling head circuits for chafing or abrasion wear
  • Check track shoe bolt torque and undercarriage wear on the 330/D7-class rollers, links and idlers (521B) or D6H HD-class components (base 521)
  • Inspect engine mounts and the cooling fan drive assembly
  • Test felling head accumulator charge pressure and cycle response
Every 2,000 h
  • Change hydraulic system oil filter elements
  • Adjust engine valve lash clearance on the C9 ACERT
  • Inspect the turbocharger for shaft end play and bearing wear
  • Check swing gear and pinion backlash and tooth wear
  • Inspect fuel injectors and have them tested or reconditioned if S.O.S or performance flags an issue
  • Inspect boom and stick cylinder rod seals for drift or leakage
Every 4,000 h
  • Change hydraulic tank oil (Cat HYDO Advanced or Bio HYDO Advanced, system capacity approximately 300 L) when supported by S.O.S trending
  • Inspect hydraulic pump and motor case drain flow for early wear signs
  • Check swing bearing bolt torque and re-torque to spec
Every 12,000 h
  • Change engine coolant (Cat ELC extended-life coolant/antifreeze, system capacity approximately 61 L)
  • Flush and pressure-test the cooling system
  • Inspect radiator core, hoses and clamps for age-related cracking or corrosion

Servicing the 521 beyond the schedule

Predictive Maintenance & Fluid Analysis

Run S.O.S oil sampling on the C9 ACERT engine, swing drive and hydraulic system at every scheduled interval to catch metal-in-oil trends before a swing drive or final drive failure spreads through the hydraulics. Bio HYDO Advanced or HYDO Advanced fluid analysis flags water intrusion common on wet cutting sites. Track IQAN fault logs and boom-circuit pressure trends through the MD3 display to catch a failing pump or valve spool before it strands the felling head mid-cut.

Corrective & Common Repairs

Expect felling head saw disc or shear knife replacement, HF201B tilt cylinder seal leaks, and boom or stick pin-and-bushing wear as the highest-frequency repairs on a working 521 or 521B. Swing drive and final drive seal leaks show up first as contamination in the case drain. Track shoe bolts loosen under shock loading on rocky ground and need re-torquing. Check felling head accumulator charge whenever cycle times slow, since a discharged accumulator masks itself as a hydraulic fault.

Overhaul & Rebuild Points

Undercarriage wear drives most rebuild decisions: the 521B's 330/D7-class rollers, idlers and track links outlast the base 521's D6H HD-class components but still need rebuild once sprocket and bushing wear passes tolerance. Swing bearing and swing gear replacement is a major job on high-hour machines. C9 ACERT top-end overhaul (injectors, turbo, valve train) typically follows repeated S.O.S flags rather than a fixed hour mark. Rebuild hydraulic pumps and motors before case drain flow signals internal bypass.

Seasonal & Environment Servicing

Cold starts need coolant checked to Cat ELC spec and block heater use before the C9 ACERT is loaded to full power; match hydraulic oil viscosity grade to the swing between winter and summer cutting blocks. Wet ground and mud accelerate undercarriage and swing drive seal wear, so shorten grease intervals on the felling head rotation bearing and boom pins in swampy sites. Clean cab and engine intake filters more often in dusty summer clearcut work to protect the turbo and cooling package.

521 common service parts

Part numberPart
220-8678Seal-RingCheck fitment →
326-1644Filter As-Water Sep & FuelCheck fitment →
179-9348Valve-DrainCheck fitment →
1R-0762Filter As-FuelCheck fitment →
142-1339Filter Element As-AirCheck fitment →

Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.

521 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
CID 0100 FMI 03/04Engine oil pressure sensor circuit reading outside valid range (voltage above or below normal)Open or shorted sensor wiring, corroded connector, or failed oil pressure sensor on the C9 ACERTCheck sensor connector and harness for damage or corrosion, then verify sensor output with the engine service tool before replacing the sensor
CID 0110 FMI 03/04Engine coolant temperature sensor circuit reading outside valid rangeDamaged sensor wiring, bad ground, or failed coolant temperature sensorInspect harness and connector, confirm sensor resistance against spec, replace sensor if out of range
CID 0102 FMI 03/04Boost (intake manifold) pressure sensor circuit reading outside valid rangeSensor circuit fault, blocked sense line, or failed boost pressure sensor on the turbocharged C9 ACERTCheck sense line for restriction or moisture, inspect wiring, test sensor output and replace if faulty
CID 0190 FMI 08/11Engine speed/timing sensor signal abnormal or lostLoose or damaged speed/timing sensor, excessive air gap, or wiring fault between sensor and ECMInspect sensor mounting and air gap, check harness continuity, reseat or replace sensor as needed
CID 0254 FMI 12Electronic control module (ECM) internal faultInternal ECM hardware failure or corrupted personality module dataConnect the engine service tool to confirm the fault, cycle power, and replace or reflash the ECM if the fault persists
CID 0001-0006 FMI 05/06Cylinder injector solenoid circuit open or shortedDamaged injector wiring, failed injector solenoid, or connector corrosion on the affected cylinderCheck injector harness and connector for that cylinder, measure solenoid resistance, replace injector if out of spec
CID 0111 FMI 01Engine coolant level lowCoolant leak, low system level, or failed coolant level sensorCheck coolant level and inspect for external or internal leaks before adding coolant, then verify sensor operation
IQAN Er:3:1CAN bus "no contact" fault between the cab master display and a hydraulic/attachment control moduleBroken or disconnected CAN wiring, blown fuse to an expansion module, or a module that has lost powerCheck module power and CAN wiring/terminators, reseat connectors, confirm module is powered before clearing the fault
IQAN Er:1:1/1:2Output or input malfunction on a control module driving a hydraulic valve, joystick input, or attachment functionShort or open circuit on the affected output driver, or a faulty joystick/sensor input feeding that moduleIdentify the affected function from the display, inspect the specific output or input wiring and connector, then test the module channel
IQAN Er:2:1Control module power supply fault (voltage out of range)Weak battery, poor ground, corroded power connector, or an intermittent charging fault feeding the control moduleCheck battery voltage and ground connections, inspect module power wiring, and test charging system output

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

521 attachments & work tools

Felling head (factory)

Cat 521/521B track feller bunchers are factory-fitted with the Cat HF201B felling head, offered in Full Tilt (330 degree) or Partial Tilt (40 degree) rotation configurations. Head choice depends on stem handling method (piling vs. bunch-and-drop) and terrain.

Felling head (aftermarket-compatible)

The disc-saw felling head mount and hydraulic circuit on the 521/521B also accept third-party accumulator felling heads (disc saw and shear types) from independent forestry-attachment builders, matched by flow class rather than a proprietary coupler. Field units are commonly seen running third-party disc-saw heads in place of the factory head.

Hydraulic flow arrangement - high flow

A high-flow valve group delivers roughly 170-190 L/min (45-50 gal/min, varies by source/configuration) to the felling head grab and accumulator arms, sized for two-cylinder arm sets (one cylinder per arm). Used with larger, higher-capacity felling heads.

Hydraulic flow arrangement - low flow

A low-flow valve group supplies about 110-120 L/min (29-32 gal/min) to the grab and accumulator arms, sized for single-cylinder link-actuated arm sets. Used with lighter felling heads; work-tool maker's flow spec should be checked before selecting an arrangement.

Saw/hotsaw attachment circuit

A dedicated variable-displacement pump (roughly 55 cc displacement class) supplies the felling/processing saw circuit independent of travel and boom pumps, supporting continuous disc saws, hotsaws, and intermittent (retracting-blade) hotsaw attachments. High-pressure hydraulics are used for fast saw recovery and quick arm speed.

Harvester/processor (dangle) head

The 521/521B is also offered in a track-harvester configuration accepting dangle-head harvester/processor attachments, with optional hydraulic setups for dangle heads and intermittent saw heads. Track harvester spec gives a bare-pin lift capacity around 4000 kg (8,800 lb) at up to about 9.9 m (32 ft 6 in) reach.

Linkage/head-mount options

Buyers can spec standard felling linkage, intermittent linkage, or no linkage at all at the head mount, allowing the machine to be built for a specific head type rather than a universal quick-coupler. Mounting is via the boom-end rotator/tilt bracket sized to the HF-series head.

Boom and lift capacity

Feller buncher configuration gives roughly 6100 kg at 6.2 m reach (13,500 lb at 20 ft 6 in), bare-pin, without felling head, with maximum reach near 8.1 m (26.5 ft); harvester configuration trades some lift for reach, up to about 9.9 m (32.5 ft). Boom design is stated to hold lift capacity through the full reach range for large-timber work.

Undercarriage/track guarding

The 521 uses integrated, welded track guards (versus bolt-on guards on the leveling 522/532 models), suited to its fixed-gauge ZTS carbody. Track pads are offered in multiple widths (approximately 610 mm, 711 mm in two variants, and 914 mm), all with clipped corners and mud/snow relief cutouts for forest ground conditions.

Machine guarding (factory options)

Standard/optional guarding includes a hydraulically actuated hinged engine enclosure with a warning alarm, engine fan guard, bottom (belly) guards, and a heavy-duty radiator guard door, protecting the machine in felling debris. These are machine-protection guards, not work-tool guards.

Other factory configuration options

Additional factory options reported for this class include cold-weather starting aids, a heavy counterweight package, HID lighting packages, and a peaked removable skylight for overhead visibility when working under a felling head. These are machine-level options rather than work-tool attachments.

All 521 assemblies by section

Every catalogued assembly group for the Caterpillar 521. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
317-9524 Air Cleaner Gp
06***51Clamp2
09***86Clamp; (Hose)3
14***19Connector As1
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210-9245 Air Cleaner Gp
10***07Seal-O-Ring; (Fuel System)1
14***03Seal-O-Ring; (Fuel System)2
14***40Ring-Backup; (37.36mm Od), Flasher Switch; Hazard, Replaces 421164a1, Flasher Switch1
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216-9856 Air Cleaner Gp -With Precleaner
06***51Clamp6
09***86Clamp; (Hose)3
14***19Connector As1
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173-6107 Elbow Gp-Air Inlet
17***07Elbow Group-Air Inlet1
17***70Filter Group-Water Sep & Fuel; -Primary1
23***24Pump Group-Fuel Transfer1
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328-9980 Lines Gp-Air
23***51Bolt-Socket Head; (M8x1.25x65-mm)2
26***60Injector Group-Fuel1
32***80Lines Group-Air1
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202-0996 Manifold Gp-Exhaust
20***96Manifold Group-Exhaust1
23***51Bolt-Socket Head; (M8x1.25x65-mm)2
32***74Injector Group-Fuel1
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216-9857 Muffler Gp
21***57Muffler Group1
26***61Pump Group-Fuel Injection6
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258-8337 Turbocharger Gp
17***70Filter Group-Water Sep & Fuel; -Primary1
19***70Base Assembly; (Fuel Priming Pump)1
25***37Turbocharger Group1
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250-7700 Turbocharger Gp
03***94Connector-Flared1
13***27Seal-O-Ring; (19.18mm Id Base Side)2
19***77Pump Group-Fuel Prm & Water Sep; -Primary Fuel Filter1
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Basic Engine
224-7846 Belt Tensioner Gp
0S***89Bolt, Hex. Hd., 5/8"-11 N.C. X 1 3/4"3
22***46Belt Tensioner Group1
4D***04Washer,Flat Cover Mtg,Accessory Drive3
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242-0674 Camshaft Gp
13***19Seal-Integral; (Integral)1
24***74Camshaft Group1
4W***26Cover1
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202-3301 Cover Gp-Cylinder Block -Crankcase
06***55Seal-O-Ring (Id=47.22mm)1
12***57Washer; (10.85x19.3x1.27-mm Thk)2
13***22Stud2
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133-3089 Cover Gp-Flywheel Housing
13***89Cover Group-Flywheel Housing1
21***06Cover Group-Valve Mechanism1
21***01Seal-Bulk; (23-Dm)(Valve Mechanism Cover)0
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118-1727 Cover Gp-Front Housing -Accessory Drive
11***27Cover Group-Front Housing; -Accessory Drive1
21***01Seal-Bulk; (23-Dm)(Valve Mechanism Cover)0
22***31Cap As-Filler; (Engine Oil)1
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211-3285 Cover Gp-Front Housing
21***85Cover Group-Front Housing1
22***31Cap As-Filler; (Engine Oil)1
26***27Cover Group-Valve Mechanism1
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258-8724 Cover Gp-Valve Mechanism
0L***26Plug -13mm(.512 In.) Outside Dia.2
17***54Bolt-Hex Head; (M16x160mm)14
20***05Bearing-Sleeve; (Camshaft)2
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280-8003 Cover Gp-Valve Mechanism
03***53Seal-O-Ring; (08.92mm Id)1
0S***19Plug-Cup1
18***09Plug As; (High Temperature)1
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164-6148 Crankshaft Gp
16***48Crankshaft Group1
16***24Seal-Liner6
19***62Liner-Cylinder Block6
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325-3915 Cylinder Block As
21***17Insert-Valve Seat; (Exhaust)(Standard)12
22***00Sleeve-Injector6
24***88Insert-Valve Seat; (Inlet)(Standard)12
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220-1952 Cylinder Block Gp
18***15Gasket Assem.1
22***52Cylinder Block Group1
25***39Cylinder Head Group1
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220-1951 Cylinder Block Gp
21***17Insert-Valve Seat; (Exhaust)(Standard)12
22***51Cylinder Block Group1
22***00Sleeve-Injector6
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311-7229 Cylinder Head As
14***95Plug As2
16***78Seal-Valve Stem; (Exhaust)12
19***15Spring-Valve; (Inner)12
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332-3619 Cylinder Head As
14***95Plug As2
16***78Seal-Valve Stem; (Exhaust)12
19***15Spring-Valve; (Inner)12
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345-8414 Cylinder Head Gp
16***71Fastener Group-Cylinder Head26
34***14Cylinder Head Group1
8C***84Bolt; (M8x1.25x150-mm)5
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242-0672 Cylinder Head Gp
15***36Pulley-Crankshaft; (8-Groove)1
16***21Damper Assem.1
24***72Cylinder Head Group1
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344-2149 Cylinder Head Gp
18***63Bolt; (M16x2x180-mm)1
34***49Cylinder Head Group1
9X***68Washer; (17.5x30x3.5-mm Thk)1
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252-8439 Cylinder Head Gp
21***23Bracket As1
25***39Cylinder Head Group1
4W***03Cup-Roller Bearing2
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165-4557 Damper & Pulley Gp
16***57Damper & Pulley Group1
26***15Bolt-12 Point Head; (M16x2x180-mm)1
29***84Fastener Group-Cylinder Head26
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231-6686 Drive Gp-Fan
22***21Spacer; (101.5x167x8-mm Thk)1
23***86Drive Group-Fan1
6V***49Bolt; (M10x1.5x50-mm)8
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213-4363 Fastener Gp-Cylinder Head
21***63Fastener Group-Cylinder Head1
24***00Spring9
8T***00Bolt (M8x1.25x60mm); (M8x1.25x60-mm)9
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167-0171 Fastener Gp-Cylinder Head
16***71Fastener Group-Cylinder Head1
5P***47Washer (Bracket To Valve Support)8
9X***21Bolt; (Locking) (M16x2.0x45mm)8
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218-0859 Fastener Gp-Damper & Pulley
21***59Fastener Group-Damper & Pulley1
24***00Spring9
8T***00Bolt (M8x1.25x60mm); (M8x1.25x60-mm)9
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117-2794 Fastener Gp-Flywheel
11***94Fastener Group-Flywheel; (Flywheel)1
25***51Gear-Flywheel; (113-Teeth)1
25***61Flywheel As1
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258-8728 Fastener Gp-Valve Cover
06***55Seal-O-Ring (Id=47.22mm)1
13***89Clip; (Ladder)1
1U***46Sealant (For Locations A)0
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236-7315 Fastener Gp-Valve Cover
11***69Plate-Thrust1
11***72Bearing1
11***19Plate-Retaining1
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233-0423 Fastener Gp-Valve Cover Base
23***23Fastener Group-Valve Cover Base1
24***59Housing-Front1
6V***18Bolt (M8x1.25x50mm); (M8x1.25x50-mm)4
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116-5386 Flywheel Gp
11***86Flywheel Group1
16***85Plate-Lifting; (Rear)1
22***66Plate-Lifting; (Front)1
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205-1321 Gear Gp-Front
09***88Clamp; (Hose)1
10***37Washer; (24.5x135x12-mm Thk)2
11***30Support As2
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187-0473 Housing Gp-Flywheel
14***95Plug As1
14***08Plug As.1
18***73Housing Group-Flywheel1
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245-3260 Housing Gp-Front
16***94Bearing; (Connecting Rod)1
16***97Bolt2
16***99Rod Assem.1
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191-3063 Lifting Gp-Engine
14***08Plug As.1
18***06Plug As; (High Temperature)2
19***63Lifting Group-Engine1
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216-9855 Mounting Gp-Engine
16***47Rocker Arm As1
21***55Mounting Group-Engine1
26***24Screw-Valve Adjustment; (M10x1.5-Thd)1
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219-9943 Pan Gp-Oil
21***43Pan Group-Oil1
24***28Rocker Arm As1
26***24Screw-Valve Adjustment; (M10x1.5-Thd)1
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265-1400 Piston & Rod Gp
20***19Bolt Assem.; (M6x1)9
24***39Seal-Crankshaft; (Front)(Front)1
26***00Piston & Rod Group1
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169-3105 Plug Gp-Engine
16***05Plug Group-Engine1
17***01Support-Front1
5P***45Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate)6
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242-0329 Rocker Arm Gp -Inlet
16***37Lifter As-Valve12
21***26Valve Mechanism Group1
24***29Rocker Arm Group; -Inlet1
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213-9320 Rocker Arm Gp -Exhaust
16***45Shaft As-Rocker Arm1
16***59Spring6
16***69Stand; (End)2
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178-3899 Seal Gp-Crankshaft
13***19Seal-Integral; (Integral)1
17***99Seal Group-Crankshaft1
22***65Tube As1
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172-0961 Support Gp-Engine
03***53Seal-O-Ring; (08.92mm Id)1
03***42Seal-O-Ring; (11.89mm Id)2
17***61Support Group-Engine1
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242-0447 Valve Mechanism Gp
18***16Tube As-Guide; (Rh)1
21***59Gauge-Oil Level (Dipstick); (Engine)1
24***47Valve Mechanism Group1
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212-8926 Valve Mechanism Gp
21***26Valve Mechanism Group1
22***18Bracket1
22***34Hose-Fumes Disposal1
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Cooling System
188-3826 Cooler Gp-Engine Oil
14***11Plug Group1
15***25Valve-Fluid Sampling1
15***70Cap-Dust; (Engine Coolant)1
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216-9860 Cooling Ar
12***67Clip Loop1
18***94Clip1
1P***79Flange (Half)8
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216-9864 Fan Ar-Reversible
14***88Seal As; (Water Pump)1
17***44Cover1
17***52Shaft As1
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223-7634 Fan Gp-Reversible
22***34Fan Group-Reversible1
23***82Sleeve-Rubber8
23***16Radiator Group1
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216-9871 Fan Gp-Suction
08***10Spacer; (16.6x32x26-mm Thk)4
09***35Spacer; (11x25x20-mm Thk)1
09***88Clamp; (Hose)1
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248-8835 Housing & Regulator Gp
14***39Filter Element As-Air; (Primary)1
14***04Filter Element As-Air; (Secondary)1
17***92Cover As1
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216-9863 Lines Gp-Cooling -Rad, Aftercooler, Hyd Cooler
09***35Spacer; (11x25x20-mm Thk)3
18***03Hose-Elbow1
18***30Hose-Elbow1
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244-0989 Lines Gp-Turbocharger Water
13***53Stud; (M8x1.25x82.75-mm)(M8x1.25x82.75-mm)8
18***71Elbow-Air Inlet1
1U***46Sealant (For Locations A)0
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205-4013 Plug Gp-Water Lines
20***13Plug Group-Water Lines; -Coolant1
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219-4452 Pump Gp-Water
09***35Spacer; (11x25x20-mm Thk)3
13***81Clamp As1
20***80Muffler As1
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202-7674 Pump Gp-Water
11***15Stud-Taperlock; (M10x85-mm Oal)12
16***11Gasket6
19***97Manifold-Exhaust1
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226-3629 Radiator & Hyd Oil Cooler Gp
13***02Clamp As; (Turbine)(Turbine)1
16***63Clamp2
19***10Cover-Compressor1
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216-9862 Radiator & Mounting Gp
14***75Valve-Drain; (Fuel)1
16***77Plug As2
17***48Valve-Drain; (Fuel Filter)1
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235-1016 Radiator Gp
10***07Seal-O-Ring; (Fuel System)1
14***03Seal-O-Ring; (Fuel System)1
14***40Ring-Backup; (37.36mm Od), Flasher Switch; Hazard, Replaces 421164a1, Flasher Switch1
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Electrical And Starting System
3e-6328 Alarm Gp -Action
16***56Bracket; (Lamp Retaining)1
17***91Bracket Assem.1
17***92Body Assem.1
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217-6635 Alternator Gp-Charging
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
21***35Alternator Group-Charging1
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197-8820 Alternator Gp-Charging
16***56Bracket; (Lamp Retaining)1
19***20Alternator Group-Charging; -24-Volt, 95-Ampere1
20***14Lens As; (Floodlight)1
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319-8882 Battery & Wiring Gp
09***46Screw-Machine; (M8x1.25x16-mm)4
23***25Lamp Group-Flood; -Suspended Mount2
31***82Battery & Wiring Group1
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340-9411 Battery & Wiring Gp -Heavy Duty
03***48Clip; (11.11mm .437in Id)1
13***00Clip; (Tab)3
34***11Battery & Wiring Group; -Heavy Duty1
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321-7032 Battery & Wiring Gp -Heavy Duty
32***32Battery & Wiring Group; -Heavy Duty1
6V***01Nut; (3/8-16-Thd)(Plate To Rh And Lh Bracket As)2
7X***08Washer-Hard; (10.2x16x2-mm Thk)2
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318-8252 Battery & Wiring Gp
09***50Nut-Wing1
21***85Lamp Group-Flood; -24-Volt-Front3
21***87Lamp Group-Flood; -24-Volt, 65-Watt5
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262-5304 Battery & Wiring Gp
23***25Lamp Group-Flood; -Suspended Mount3
25***13Cover1
25***14Lens; (Amber, Warning Beacon)1
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9w-0742 Block Gp-Junction -Battery
11***23Stud-Weld; (M10x1.5x25-mm)1
12***02Switch Group-Magnetic; -Starting Motor, Start Relay1
13***00Clip; (Tab)2
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246-9365 Control & Mtg Gp-Engine Elek
13***24Circuit Breaker As; (30-Ampere)1
17***06Circuit Breaker As; (50-Ampere)1
17***10Circuit Breaker As; (80-Ampere)1
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226-7473 Control Gp-Engine Electronic
13***00Clip; (Tab)7
13***89Clip; (Ladder)1
17***00Suppressor-Arc1
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320-1521 Electrical Ar
03***54Elbow; (90 Degree Bumped Tube)2
12***77Hose; (190cm)0
13***00Clip; (Tab)1
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272-0059 Electrical Ar
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)1
24***53Plug As1
27***59Electrical Ar1
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285-5315 Guard Gp-Electronic Control
03***54Elbow; (90 Degree Bumped Tube)2
12***77Hose; (190cm)0
13***00Clip; (Tab)1
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162-7755 Lamp Gp-Dome
03***54Elbow; (90 Degree Bumped Tube)2
13***00Clip; (Tab)1
14***11Plug Group1
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219-6485 Lamp Gp-Flood
03***54Elbow; (90 Degree Bumped Tube)2
13***00Clip; (Tab)1
13***87Clip1
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234-4325 Lamp Gp-Flood
19***93Sensor Group-Pressure; -Atmospheric1
19***94Sensor Group-Pressure; -Engine Oil1
21***47Sensor Group-Pressure; -Air Inlet Manifold1
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321-0836 Lamp Gp-Flood
16***04Sensor Group-Pressure; (Turbocharger Outlet)1
32***36Lamp Group-Flood1
6V***48Seal--O-Ring--To Governor Drive Housing1
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319-7379 Lamp Gp-Flood -Hid
16***03Sensor Group-Pressure; (Turbocharger Inlet, Rh)1
21***68Seal-O-Ring; (11.89-mm Id)1
31***79Lamp Group-Flood; -Hid1
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219-6487 Lamp Gp-Flood
09***86Seal - O-Ring (19.80 mm Id)1
13***73Hose-Fuel; (14 cm)0
13***08Clamp2
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319-7380 Lamp Gp-Flood -Hid
16***05Sensor As-Pressure; (Unfiltered Engine Oil)1
31***80Lamp Group-Flood; -Hid1
6V***48Seal--O-Ring--To Governor Drive Housing1
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332-8810 Lighting Gp-Flood -Hid
13***45Pad; (Connector)1
26***97Sensor Group-Temperature; (Air Inlet Manifold)1
33***10Lighting Group-Flood; -Hid1
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261-1091 Lighting Gp-Flood -Cab Front, Rear, Side, Engine Compartment
21***67Seal-O-Ring1
22***36Sensor Group-Pressure; -Injection Actuation1
26***91Lighting Group-Flood; -Cab Front, Rear, Side, Engine Compartment1
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332-8811 Lighting Gp-Flood -Hid
13***45Pad; (Connector)1
26***97Sensor Group-Temperature; (Air Inlet Manifold)1
33***11Lighting Group-Flood; -Hid1
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320-7443 Lighting Gp-Flood -Cab Front, Side
20***40Seal-O-Ring; (13.94mm Id)2
24***30Sensor Group-Speed; -Engine Timing1
32***43Lighting Group-Flood; -Cab Front, Side1
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250-0850 Lighting Gp-Flood -Cab Front, Side
15***60Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness)1
19***26Harness As-Sensor; (16-18 Ga Wire)(Engine Oil Temperature)3
19***27Harness As-Sensor; (14-Ga Wire)(Engine Oil Temperature)3
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117-3915 Motor Gp-Electric -Hydraulic Tank
11***15Motor Group-Electric; -Engine Prelubrication-Sec Steering, Brake Release1
1U***46Sealant (For Locations A)0
23***16Heater As; (Starting Aid)1
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306-9319 Mounting Gp-Wiring
23***45Nut-Sleeve; (5/16-24-Thd)1
23***13Bracket1
23***34Valve Group-Ether Starting1
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222-9161 Panel Gp-Circuit Breaker
13***00Clip; (Tab)1
16***95Block2
22***61Panel Group-Circuit Breaker1
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320-6147 Panel Gp-Circuit Breaker
23***45Nut-Sleeve; (5/16-24-Thd)1
23***13Bracket1
23***34Valve Group-Ether Starting1
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238-5022 Panel Gp-Relay
21***70Preheater Group-Machine; -Hydraulic Tank, Engine1
23***22Panel Group-Relay, O-Ring1
32***32Battery & Wiring Group; -Heavy Duty1
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235-8200 Plug Gp-Connector -Engine Harness, Protective Cover
23***00Plug Group-Connector; -Engine Harness, Protective Cover1
32***32Battery & Wiring Group; -Heavy Duty1
32***49Starting Aid Group-Ether1
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216-9870 Preheater Gp-Machine -Hydraulic Tank, Engine
03***21Shim Lever Housing1
03***23Bolt; (1/4-28x1-In)13
04***65Screw 19.05 mm(.750 In.) Long4
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224-9686 Preheater Gp-Machine -Diesel Fired
01***80Lockwasher2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
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231-1978 Sensor Gp-Engine
1B***78Nut,Plain,Hexagon Rod To Lever Uoc:Bsv,Bsx2
23***78Sensor Group-Engine1
4D***26Washer,Lock Starter Ground Cable, Internal And External Teeth2
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330-6034 Sensor Gp-Engine
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
33***34Sensor Group-Engine1
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306-6875 Sensor Gp-Liquid Level
15***70Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness)1
18***36Socket-Connector; (16-Ga To 18-Ga)2
30***75Sensor Group-Liquid Level1
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347-8022 Sensor Gp-Liquid Level -Hydraulic Oil Level
08***83Washer; (0.8mm Thk)2
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
11***99Switch As; (Hydraulic Lockout, Neutral Start)1
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266-8650 Sensor Gp-Pressure
21***85Lamp Group-Flood; -24-Volt-Front2
22***62Harness As-Lighting; (Boom Floodlight)1
26***50Sensor Group-Pressure; -Intake Manifold Air1
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267-1402 Sensor Gp-Pressure
21***85Lamp Group-Flood; -24-Volt-Front2
25***09Harness As-Lighting; (Boom)1
26***02Sensor Group-Pressure; -Injection Actuation1
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236-6220 Sensor Gp-Pressure
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
17***75Horn As; (24-Volt, High Tone)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
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197-8393 Sensor Gp-Pressure
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
19***93Sensor Group-Pressure; -Atmospheric1
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210-1747 Sensor Gp-Pressure
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
18***35Pin-Connector; (16-Ga To 18-Ga)3
21***47Sensor Group-Pressure; -Air Inlet Manifold1
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276-9067 Sensor Gp-Pressure
09***66Washer; (Hard) (4.5x9x1mm Thk)3
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***61Housing1
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224-4536 Sensor Gp-Pressure
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
22***36Sensor Group-Pressure; -Injection Actuation1
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303-3357 Sensor Gp-Pressure
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
11***09Knob-Control1
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197-8394 Sensor Gp-Pressure
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
18***35Pin-Connector; (16-Ga To 18-Ga)3
19***94Sensor Group-Pressure; -Engine Oil1
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236-6221 Sensor Gp-Speed -Engine Timing
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
11***09Knob-Control1
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274-7395 Sensor Gp-Temperature
12***33Clip1
13***00Clip; (Tab)2
13***51Spacer; (11x19x6-mm Thk)1
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274-7396 Sensor Gp-Temperature
12***33Clip1
13***00Clip; (Tab)2
13***51Spacer; (11x19x6-mm Thk)1
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234-5012 Sensor Gp-Temperature
21***49Harness Assembly; (Unit Injector)1
23***12Sensor Group-Temperature; -Coolant, Water1
23***02Harness Assembly; (Electronic Control Module)1
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234-5013 Sensor Gp-Temperature
21***49Harness Assembly; (Unit Injector)1
23***13Sensor Group-Temperature; -Air Inlet Manifold1
23***02Harness Assembly; (Electronic Control Module)1
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238-3215 Starting Aid Gp -Air Inlet Manifold
03***12Terminal-Ring; (2-Ga, 1/4-In Screw)(Circuit Breaker)1
12***33Clip1
13***00Clip; (Tab)2
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329-9549 Starting Aid Gp-Ether
03***48Clip; (11.11mm .437in Id)3
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
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311-2626 Starting Aid Gp-Ether
03***07Terminal-Ring; (0-Ga, 3/8-In Screw)1
11***97Diode As; (Bipolar)1
13***43Boot; (Red)(Red)1
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327-5254 Starting Ar-Cold Weather
03***48Clip; (11.11mm .437in Id)3
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
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327-5253 Starting Ar-Cold Weather -Preheater
03***48Clip; (11.11mm .437in Id)3
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
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329-5861 Starting Gp-Cold Weather
16***09Final Drive & Brake Group1
27***73Motor Group-Travel1
32***61Starting Group-Cold Weather1
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104-7041 Starting Motor Gp-Electric
10***41Starting Motor Group-Electric1
20***58Sprocket-Track1
7X***75Bolt; (M24x3x60-mm)16
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6v-0590 Starting Motor Gp-Electric
09***28Ring-Retaining; (External)5
10***22Bearing As-Roller10
10***18Ring-Retaining5
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223-6377 Starting Motor Gp-Electric
22***77Starting Motor Group-Electric1
31***10Box As-Battery, Exhaust Valve, Exhaust Valve; Serviced As 38***91.1
31***25Plate2
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7n-0718 Switch Gp-Disconnect -Battery
14***06Plug As1
18***06Plug As; (High Temperature)1
21***60Plate As1
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179-0006 Switch Gp-Magnetic
08***87Grommet5
09***83Shim (1.0 mm Thick)1
09***90Shim (1.0 mm Thick)2
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209-5582 Switch Gp-Magnetic -Start Relay-Starting Aid Heater Relay
09***95Plug1
1U***46Sealant (For Locations A)0
20***82Switch Group-Magnetic; -Starting Aid Heater Relay-Air Inlet Heater Relay1
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125-1302 Switch Gp-Magnetic -Start Relay
08***87Grommet5
09***83Shim (1.0 mm Thick)1
09***90Shim (1.0 mm Thick)2
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241-8368 Switch Gp-Magnetic -Main Relay
11***83Seal (1100 cm) (Order By The Centimeter)0
24***68Switch Group-Magnetic; -Main Power Relay-Main Relay1
3B***89Fitting-Grease; (Fan And Alternator Drive)1
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234-6613 Switch Gp-Position -Hydraulic Lockout
19***78Gear & Bearing Group-Swing1
22***88Gear & Bearing Group-Swing1
23***13Switch Group-Position; -Hydraulic Lockout1
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258-0883 Switch Gp-Pressure -Fuel Filter, Differential-Fuel Filter
22***73Seal-Dust2
25***83Switch Group-Pressure; -Fuel Filter, Differential-Fuel Filter1
3B***89Fitting-Grease; (Fan And Alternator Drive)1
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165-5970 Switch Gp-Toggle -Hyd Tank Fill Pump, Motor
16***70Switch Group-Toggle; -Engine Shutoff-Starting Aid-Diagnostic Mode Select1
1K***50Spring1
25***84Plate1
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158-6634 Switch Gp-Toggle
15***34Switch Group-Toggle; -Stairway Access Lights1
19***78Hinge1
1K***50Spring1
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239-1134 Valve Gp-Ether Starting
20***38Rod As1
22***44Cover2
22***43Angle1
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217-2437 Warning Gp-Backup
20***38Rod As1
21***37Warning Group-Backup1
22***44Cover2
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253-2606 Wiring Gp-Boom -Floodlights
15***11Lockwasher3
15***59Eyebolt; (M8x1.25x100-mm)2
21***15Strip1
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212-8018 Wiring Gp-Boom -Floodlights
12***36Handle2
21***18Wiring Group-Boom; -Floodlights1
26***82Latch As; (Heavy-Duty)1
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280-0558 Wiring Gp-Cab
11***31Mount Assem.8
24***98Sleeve8
24***39Washer; (32x135x12-mm Thk)6
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280-0561 Wiring Gp-Console
11***23Stud-Weld; (M10x1.5x25-mm)2
28***61Wiring Group-Console1
7T***99Link6
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236-6226 Wiring Gp-Electronic Control -Engine
12***18Sleeve1
14***25Connector As.4
17***07Clip2
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330-6018 Wiring Gp-Electronic Control
09***36Seal-Lip Type1
09***12Ring, Back-Up2
09***19Seal-O-Ring (Id=59.60mm)2
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222-9157 Wiring Gp-Engine
16***89Step As1
21***72Frame As-Undercarriage1
22***57Wiring Group-Engine1
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320-8403 Wiring Gp-Engine
10***09Track Adjuster Group2
20***70Idler Group-Front2
32***03Wiring Group-Engine1
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269-3410 Wiring Gp-Heater -Air Inlet Manifold
10***85Seal Group-Duo-Cone2
11***51Shaft-Idler1
11***97Bearing2
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255-6927 Wiring Gp-Hyd Tank Fill Pump
10***75Spring Group-Recoil1
20***69Idler Group-Front1
25***27Wiring Group-Hydraulic Tank Fill Pump1
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272-0060 Wiring Gp-Machine
15***71Ring; (Thrust)96
19***25Pin; (Track)48
20***44Seal As96
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320-1523 Wiring Gp-Machine
15***86Collar; (Track Roller)2
15***26Dowel2
20***62Roller & Bearing As1
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Engine Arrangement
264-0399 Engine Ar-Complete
15***43Coupling & Mtg Group-Pump1
21***55Mounting Group-Engine1
21***56Air Cleaner Group; -With Precleaner1
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264-0403 Engine Ar-Core
18***49Support1
19***43Belt Tensioner1
26***03Engine Ar-Core1
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213-2400 Installation Ar-Engine
21***00Installation Ar-Engine1
21***10Gasket1
21***11Cover; (Cylinder Block)1
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Frame And Body
316-6440 Box Gp-Battery
1S***60Nut-Track; (3/4-16-Thd)196
26***58Link As-Track; -Grease Lubricated Track1
31***40Box Group-Battery1
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333-0597 Brace Gp
1S***60Nut-Track; (3/4-16-Thd)196
20***83Shoe-Track49
26***58Link As-Track; -Grease Lubricated Track1
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272-0054 Counterweight Gp
1S***60Nut-Track; (3/4-16-Thd)196
20***35Shoe; (Track)49
26***58Link As-Track; -Grease Lubricated Track1
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356-6534 Counterweight Gp
10***35Bushing-Track1
10***37Pin-Track1
10***39Joint As; (Rh)49
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356-6535 Counterweight Gp
10***35Bushing-Track1
10***37Pin-Track1
10***40Joint As; (Lh)49
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340-9880 Door As-Access
10***21Guard Group-Swivel; (Swivel)1
15***35Gear & Bearing Group-Swing1
18***71Idler Group-Front1
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272-0052 Frame Gp-Upper
25***95Roller Group-Track-Single Flange4
26***59Track Group; -2-Required2
27***52Frame Group-Upper1
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227-6087 Gear & Bearing Gp-Swing
15***58Flange1
15***59Hub1
22***87Gear & Bearing Group-Swing1
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152-1735 Gear & Bearing Gp-Swing
15***35Gear & Bearing Group-Swing1
25***95Roller Group-Track-Single Flange4
26***60Track Group; -2-Required2
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199-4478 Gear & Bearing Gp-Swing
19***78Gear & Bearing Group-Swing1
2J***64Plug-Drain; (Hydraulic Filter Bypass)1
3G***73Spring; (Inner)1
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227-6088 Gear & Bearing Gp-Swing
12***62Seal-O-Ring1
17***30Cover1
22***88Gear & Bearing Group-Swing1
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261-1089 Guard Gp-Lighting
10***96Bolt-Socket Head; (M10x1.5x50-mm)8
14***27Connector Group2
14***76Elbow As1
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321-8957 Guard Gp-Lighting
14***76Elbow As1
17***22Elbow2
1P***03Seal - Rectangular (31.86mm Id)2
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216-9865 Guard Gp-Radiator
10***96Bolt-Socket Head; (M10x1.5x50-mm)8
14***27Connector Group2
14***76Elbow As1
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247-7641 Guard Gp-Radiator
10***96Bolt-Socket Head; (M10x1.5x50-mm)20
14***27Connector Group6
14***76Elbow As2
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340-9907 Guard Gp-Radiator
28***13Cylinder & Mtg Group-Stick1
28***14Cylinder & Mtg Group-Boom1
28***52Cylinder & Mtg Group-Saw1
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100-3721 Guard Gp-Swivel
10***21Guard Group-Swivel; (Swivel)1
28***13Cylinder & Mtg Group-Stick1
28***14Cylinder & Mtg Group-Boom1
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330-5882 Hood As
28***13Cylinder & Mtg Group-Stick1
28***14Cylinder & Mtg Group-Boom1
33***82Hood As1
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331-9410 Hood Gp
08***05Stop1
09***29Ring; (Retaining)2
09***31Seal-O-Ring; (Id=119.60mm)1
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272-0053 Hood Gp
10***17Valve Group-Counterbalance; -Hood Tilt Cylinder1
11***15Clevis1
23***74Pin2
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212-8019 Plate Gp-Frame
08***05Stop1
09***29Ring; (Retaining)2
09***31Seal-O-Ring; (Id=119.60mm)1
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280-1999 Step As
08***05Stop1
09***29Ring; (Retaining)2
09***31Seal-O-Ring; (Id=119.60mm)1
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235-6512 Step Gp
09***71Ring; (Retaining)1
09***29Ring; (Retaining)2
09***31Seal-O-Ring; (Id=119.60mm)1
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217-9693 Tilt Gp-Hood
09***55Pin1
11***29Bolt; (M24x3x100-mm)16
16***73Valve Group-Shutoff1
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Fuel System
224-5005 Filter Gp-Fuel -Secondary
03***94Connector-Flared1
13***27Seal-O-Ring; (19.18mm Id Base Side)2
20***34Regulator-Pressure; (Fuel)1
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174-9570 Filter Gp-Water Sep & Fuel -Primary
03***50Elbow (Check Valve Drain Tube)1
15***06Seal-O-Ring; (11.89mm Id)1
17***70Filter Group-Water Sep & Fuel; -Primary1
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328-2574 Injector Gp-Fuel
09***25Seal-O-Ring (Id=154.30mm)1
14***35Connect Group; (Each Includes)2
14***36Adapter; (Straight) (-6 Orb X -6 Orfs)1
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293-4072 Injector Gp-Fuel
14***36Adapter; (Straight) (-6 Orb X -6 Orfs)1
23***43Regulator Group-Fuel Pressure1
29***72Injector Group-Fuel1
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267-3360 Injector Gp-Fuel
21***68Seal-O-Ring; (11.89-mm Id)1
26***60Injector Group-Fuel1
29***20Regulator As; (Fuel Pressure)1
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216-9868 Lines Gp-Fuel
18***38Collar2
18***39Fan As; (Alternator)1
18***44Coil Assem.1
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235-8725 Pump Gp-Filter & Fuel Transfer -Primary
03***12Terminal-Ring; (2-Ga, 1/4-In Screw)(Circuit Breaker)1
11***22Battery Group; (12-Volt, Maintenance Free, Wet)2
12***73Cap As-Filler; (Battery)6
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267-3362 Pump Gp-Fuel Injection
26***62Pump Group-Fuel Injection1
6V***22Tube-Heat Shrink; (25.4-mm Dia)(10-M)0
7F***60Washer6
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267-3361 Pump Gp-Fuel Injection
11***22Battery Group; (12-Volt, Maintenance Free, Wet)2
12***73Cap As-Filler; (Battery)6
20***99Clip38
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188-6121 Pump Gp-Fuel Prm & Prim Filter -With Water Separator
10***28Spacer-Special; (12.7x26x28.7-mm Thk)4
14***92Stud; (M8x1.25-Thd)4
18***21Pump Group-Fuel Prm & Prim Filter; -With Water Separator-Primary1
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190-8977 Pump Gp-Fuel Prm & Water Sep -Primary Fuel Filter
19***77Pump Group-Fuel Prm & Water Sep; -Primary Fuel Filter1
26***78Control Group-Unprogrammed; (Engine)1
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256-6915 Pump Gp-Fuel Transfer
21***37Warning Group-Backup1
22***57Wiring Group-Engine1
25***27Wiring Group-Hydraulic Tank Fill Pump1
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271-2234 Pump Gp-Unit Injector Hyd
21***37Warning Group-Backup1
25***27Wiring Group-Hydraulic Tank Fill Pump1
26***91Lighting Group-Flood; -Cab Front, Rear, Side, Engine Compartment1
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232-0343 Regulator Gp-Fuel Pressure
12***78Locknut; (M6x1-Thd)2
23***43Regulator Group-Fuel Pressure1
26***01Sheet As1
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273-2445 Regulator Gp-Fuel Pressure
15***26Switch; (Dome Light)1
15***27Lamp; (24-Volt)(Dome Light)2
15***28Lens; (Dome Light)1
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269-0681 Tank Gp-Fuel -Auxiliary
16***56Bracket; (Lamp Retaining)1
17***91Bracket Assem.1
17***92Body Assem.1
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Hydraulic System
3g-7232 Bypass Gp-Filter -Hydraulic Oil
10***77Bolt-Socket Head; (M10x1.5x45-mm)4
15***62Union As1
1P***02Seal-Rectangular 28.83mm(1.136in) Id13
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154-6643 Coupling & Mtg Gp-Pump
177-2521 Cover Gp-Pump
10***77Bolt-Socket Head; (M10x1.5x45-mm)4
15***62Union As1
17***21Cover Group-Pump1
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171-2446 Cover Gp-Valve End
10***04Bolt; (Socket Head) (M10x1.5x30mm)8
10***93Flange2
10***77Bolt-Socket Head; (M10x1.5x45-mm)4
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282-3014 Cylinder & Mtg Gp-Boom
20***30Tag-Identification; (Aa Head)2
20***31Tag-Identification; (Aa Rod)2
20***32Tag-Identification; (Ga Head)2
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327-8141 Cylinder & Mtg Gp-Boom
14***25Connector As.2
14***68Elbow Group1
15***33Elbow, 45°,-6 Orb /-4 Orfs1
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282-3152 Cylinder & Mtg Gp-Saw
11***60Union1
14***55Union As4
15***26Union Assembly4
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282-3013 Cylinder & Mtg Gp-Stick
11***65Bracket1
11***11Tee-O-Ring Port1
12***50Valve-Check; (Quick Coupler Solenoid)2
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282-3109 Cylinder & Mtg Gp-Stick & Saw -Harvester Head, Lh
11***65Bracket1
12***50Valve-Check; (Quick Coupler Solenoid)1
12***44Hose Assem.1
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248-6874 Cylinder Ar-Hydraulic -Boom, Stick
09***49Bolt; (M8x1.25x40-mm)2
11***18Tee-Swivel1
11***65Bracket1
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217-9701 Cylinder Ar-Hydraulic -Boom, Stick, Saw Tilt
09***49Bolt; (M8x1.25x40-mm)2
11***65Bracket1
12***50Valve-Check; (Quick Coupler Solenoid)1
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322-3568 Cylinder Gp-Boom
10***02Bolt-Socket Head; (M12x1.75x30-mm)2
10***19Bolt; (Socket Head) (M12x1.75x70mm)2
14***47Elbow; (-12 Orb/Orfs)1
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251-8281 Cylinder Gp-Hood Tilt
10***02Bolt-Socket Head; (M12x1.75x30-mm)2
10***19Bolt; (Socket Head) (M12x1.75x70mm)2
14***47Elbow; (-12 Orb/Orfs)1
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215-9097 Cylinder Gp-Hydraulic -Boom
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)3
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215-9092 Cylinder Gp-Stick -Boom
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)3
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254-5457 Cylinder Gp-Tilt -Saw
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)3
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274-7480 Cylinder Gp-Tilt -Saw
11***34Tee-O-Ring1
12***75Filter Group-Oil; -Hyraulic Oil-Hydraulic, Case Drain2
14***28Connector Assem.1
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217-9689 Drive Ar-Swing
11***34Tee-O-Ring1
14***28Connector Assem.1
14***47Elbow; (-12 Orb/Orfs)1
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201-7808 Drive Gp-Swing
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)2
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220-8623 Drive Gp-Swing
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)2
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289-7836 Filter & Valve Gp-Pilot -Hydraulic Oil
14***18Reducer; (-8orfs/-12orfs Swivel)5
14***55Union As14
15***26Union Assembly1
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188-2084 Filter & Valve Gp-Pilot -Hydraulic Oil
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)3
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158-8987 Filter & Valve Gp-Pilot -Hydraulic Oil
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)3
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222-7092 Filter Gp-Oil -Hydraulic
10***18Grommet2
14***60Grommet2
14***64Elbow, 90°,-8 Orb /-8 Orfs2
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126-2075 Filter Gp-Oil -Case Drain
11***60Union1
12***75Filter Group-Oil; -Hyraulic Oil-Hydraulic, Case Drain1
14***55Union As6
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289-8194 Filter Gp-Oil -Hydraulic, Case Drain
14***53Elbow, 45,-6 Orb To-6 Orfs-Drum Clutch Port1
14***55Elbow As.1
14***64Elbow, 90°,-8 Orb /-8 Orfs1
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227-0620 Gauge Gp-Sight -Hydraulic Oil Level
14***53Elbow, 45,-6 Orb To-6 Orfs-Drum Clutch Port1
14***55Elbow As.1
14***64Elbow, 90°,-8 Orb /-8 Orfs1
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192-2892 Head Gp-Motor -Travel
18***30Valve Group-Relief; -Swing Motor2
18***75Motor Group-Swing1
19***92Head Group-Motor; -Travel1
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291-1126 Head Gp-Motor
09***00Seal-O-Ring (Id=33.70mm)2
09***33Seal-Lip Type1
09***11Pin; (Spring)2
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270-4694 Head Gp-Pump -Main Hydraulic
12***54Setscrew; (M12x1.75-Thd)1
12***13Seal; (Shaft)1
12***14Shim; (3-mm Thk)1
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308-4488 Head Gp-Pump -Main Hydraulic
30***88Head Group-Pump; -Main Hydraulic1
6V***30Cap As -Lines From Rotate Valve Work5
6V***32Cap As4
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272-0056 Hydraulic Ar
14***47Elbow; (-12 Orb/Orfs)1
15***44Elbow Group1
20***66Pump & Motor Group; -Hydraulic Tank Fill1
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284-5616 Hydraulic Ar
26***29Pump Group-Piston; -Main Hydraulic, Felling Head1
28***16Hydraulic Ar1
8T***60Washer-Hard (For Use With 7/16 In Bolts)7
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282-3068 Hydraulic Ar-Harvester -Without Linkage
03***48Clip; (11.11mm .437in Id)1
11***17Clip1
13***00Clip; (Tab)3
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245-1969 Kit-Seal -Feed Reducer Plug
08***01Plug As3
09***91Ball Bearing1
12***13Seal; (Shaft)1
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217-9705 Lines Gp-Boom -Felling Head
08***01Plug As3
09***91Ball Bearing1
12***13Seal; (Shaft)1
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253-2603 Lines Gp-Boom -Harvester Head
19***83Rotating Group-Motor; -Travel1
19***86Shaft Group-Hydraulic Motor1
25***03Lines Group-Boom; -Harvester Head1
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306-9318 Lines Gp-Control -Crossover, Travel
11***19Screw-Special; (M5x0.8x8-mm)14
12***29Plate-Control1
12***30Pin-Center1
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253-2604 Lines Gp-Front -Boom, Harvester Head
12***87Ring-Retaining1
17***91Plate; (2.6-mm Thk)1
17***92Plate; (2.65-mm Thk)1
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282-3065 Lines Gp-Front -Boom, Harvester Head
17***02Pin1
17***10Spring4
17***11Plate1
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282-3064 Lines Gp-Front -Boom Cylinder, Harvester Head
12***87Ring-Retaining1
17***91Plate; (2.6-mm Thk)1
17***92Plate; (2.65-mm Thk)1
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217-9707 Lines Gp-Front -Boom, Felling Head
12***87Ring-Retaining1
17***87Shim; (3.3-mm Thk)1
17***88Shim; (3.4-mm Thk)1
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282-3101 Lines Gp-Front -Boom, Stick
09***36Screw; (Machine) (M5x0.8x10mm)5
09***49Bolt; (M8x1.25x40-mm)8
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
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282-3102 Lines Gp-Front -Boom, Felling Head
09***36Screw; (Machine) (M5x0.8x10mm)5
09***49Bolt; (M8x1.25x40-mm)6
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
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317-5827 Lines Gp-Hood Tilt
27***59Tube As1
31***27Lines Group-Hood Tilt1
5P***66Capscrew; (Hex Hd) (1/2-13 Nc X 1 1/2) (Gd 8 Z)2
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285-0933 Lines Gp-Motor
14***15Hose As1
14***09Adapter As1
14***36Adapter; (Straight) (-6 Orb X -6 Orfs)3
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282-3108 Lines Gp-Motor
09***43Retainer1
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
10***37Hose Assem.1
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272-0058 Lines Gp-Pilot
11***60Union1
12***37Clip-Loop2
12***23Bracket Assem.1
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306-9317 Lines Gp-Pilot -Power Shift Option
09***56Setscrew-Socket1
10***04Seal-O-Ring1
16***67Dowel1
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282-3071 Lines Gp-Pump
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
16***40Valve Group-Relief; (Line)2
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275-7941 Lines Gp-Pump
22***44Kit-Relief Valve; (Main, Load Sensing)1
22***46Kit-Valve1
22***50Kit-Control Valve; (Seal)(Control Valve)1
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217-9692 Lines Gp-Return
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
17***46Cover Group-Valve End1
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253-2607 Lines Gp-Saw
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
17***46Cover Group-Valve End1
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256-0350 Lines Gp-Saw
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
16***43Valve Group-Relief; (Control Valve)2
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217-9709 Lines Gp-Saw
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
17***46Cover Group-Valve End1
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217-9703 Lines Gp-Stick
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
16***43Valve Group-Relief; (Control Valve)2
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253-2602 Lines Gp-Stick
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
17***46Cover Group-Valve End1
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222-9062 Lines Gp-Travel Motor
22***62Lines Group-Travel Motor1
22***44Kit-Relief Valve; (Main, Load Sensing)1
22***50Kit-Control Valve; (Seal)(Control Valve)1
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281-6404 Motor & Mtg Gp-Swing
09***41Bolt-Socket Head; (M4x0.7x10-mm)2
09***45Bolt-Socket Head; (M6x1.00x55mm)2
16***43Valve Group-Relief; (Control Valve)2
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206-1513 Motor & Mtg Gp-Swing
09***45Bolt-Socket Head; (M6x1.00x55mm)2
16***43Valve Group-Relief; (Control Valve)2
17***46Cover Group-Valve End1
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334-9978 Motor Gp-Swing
12***94Plug; (Break Off)5
12***17Plug1
15***85Dowel2
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188-4175 Motor Gp-Swing
12***96Pin2
12***98Seat2
12***99Seat2
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179-9775 Motor Gp-Swing
11***16Kit-Seal; (Counterbalance Valve)1
17***75Motor Group-Swing1
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334-9971 Motor Gp-Swing
22***32Valve Group-Control; -Inlet1
22***33Valve Group-Control; -Accum Arms-Hf, Lo/Hi Flow-Hp-Grapple-Hf, High Flow-Hp2
22***35Valve Group-Control; -Swing1
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320-2393 Motor Gp-Travel
14***36Adapter; (Straight) (-6 Orb X -6 Orfs)4
14***07Plug; (Hex Head) (-6 Orb) (Current) (16***35 Friction Disc Interchangeable With 11***47) (Use All Of One Part Number)2
1P***02Seal-Rectangular 28.83mm(1.136in) Id12
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279-9873 Motor Gp-Travel
08***59Setscrew2
12***79Piston2
12***81Seat2
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206-6508 Plug Gp-Hydraulic Lines
09***98Seal-O-Ring (Id=29.40mm)1
16***13Body As1
16***63Retainer1
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217-9690 Pump & Lines Gp-Hyd Tank Fill
10***66Adapter2
21***90Pump & Lines Group-Hydraulic Tank Fill1
2M***80Seal--To Connector Pump Outlet2
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205-5266 Pump & Motor Gp -Hydraulic Tank Fill
12***98Seat1
12***99Seat1
13***49Connector1
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212-8039 Pump & Motor Gp-Hood Tilt
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
12***48Kit-Seal; (Solenoid Valve)1
15***84Locknut; (Special) (5/8-18 Thd)1
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308-0095 Pump & Mtg Gp-Main Hydraulic
11***43Locknut; (5/16-18-Thd)2
15***38Cartridge Assem.1
19***01Kit-Seal; (Solenoid Valve)1
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217-9700 Pump & Mtg Gp-Main Hydraulic -Felling Head
09***86Seal - O-Ring (19.80 mm Id)1
12***14Seal-O-Ring (Id=10.82mm)1
12***15Seal-O-Ring (Id=12.42mm)1
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283-2529 Pump & Mtg Gp-Saw
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)2
11***43Locknut; (5/16-18-Thd)2
16***71Kit-Seal; (Solenoid Valve)1
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268-8259 Pump Gp-Piston
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
15***70Nut; (1/2-20-2b-Thd)1
1S***93Strap; (Cable) (0.62in Dia)2
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308-0094 Pump Gp-Piston -Main Hydraulic
12***27Manifold1
19***39Valve Group-Solenoid; -Pressure Reducing1
30***94Pump Group-Piston; -Main Hydraulic1
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268-6729 Pump Gp-Piston -Main Hydraulic, Felling Head
16***08Washer; (13.03x25.4x2.38-mm Thk)1
17***92Kit-Seal; (Solenoid Valve)1
21***73Nut; (1/2-28-Thd)1
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191-0883 Rotating Gp-Motor -Travel
15***40Valve Group-Solenoid; -Reversing Fan, Ride Control3
19***83Rotating Group-Motor; -Travel1
27***76Valve Group-Solenoid; -Reversing Fan 11
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190-8121 Rotating Gp-Motor -Travel
17***85Valve Group-Solenoid1
19***21Rotating Group-Motor; -Travel1
22***64Cartridge As-Valve2
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216-0035 Rotating Gp-Pump -Hydraulic-Main Hydraulic
09***83Shim (1.0 mm Thick)2
09***90Shim (1.0 mm Thick)2
09***15Shim (2.0 mm Thick)2
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283-5978 Rotating Gp-Pump -Main Hydraulic
03***48Clip; (11.11mm .437in Id)2
14***85Clip1
21***18Lines Group-Grease; -Boom1
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283-5977 Rotating Gp-Pump -Main Hydraulic
09***83Shim (1.0 mm Thick)2
09***90Shim (1.0 mm Thick)2
09***15Shim (2.0 mm Thick)2
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216-0034 Rotating Gp-Pump -Hydraulic-Main Hydraulic
09***76Seal-O-Ring1
09***86Seal - O-Ring (19.80 mm Id)1
09***98Seal-O-Ring (Id=29.40mm)2
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216-0028 Rotating Gp-Pump -Main Hydraulic
21***28Rotating Group-Pump; -Main Hydraulic1
24***81Flange6
25***37Valve Group-Solenoid5
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283-5979 Rotating Gp-Pump -Main Hydraulic
21***18Lines Group-Grease; -Boom1
24***37Hose As2
28***79Rotating Group-Pump; -Main Hydraulic1
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4i-6262 Rotor Gp-Swivel
24***33Hose As1
24***34Hose As1
24***35Hose As1
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4i-6263 Rotor Gp-Swivel
24***35Hose As1
24***36Hose As1
25***15Hose As1
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191-0886 Shaft Gp-Hydraulic Motor
19***86Shaft Group-Hydraulic Motor1
21***11Boom Group1
21***12Stick Group; -Felling Head1
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159-5871 Swivel Gp -Without Tilt Function
15***71Swivel Group; -Without Tilt Function1
21***11Boom Group1
21***12Stick Group; -Felling Head1
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272-0055 Tank Gp-Hydraulic & Fuel
21***97Valve & Mtg Group-Main Control; -7-Bank1
21***00Pump & Mtg Group-Main Hydraulic; -Felling Head1
22***71Control & Mtg Group-Joystick; -Harvester Head1
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306-9323 Tube Gp-Diffuser -Hydraulic Tank
22***01Boom Group1
22***02Stick Group; -Harvester Head1
25***02Lines Group-Stick1
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217-9696 Valve & Lines Gp-Travel Cont -Without Tilt Function
12***37Clip-Loop2
14***34Bolt; (M10x1.5x30-mm)1
21***11Boom Group1
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256-0349 Valve & Mtg Gp-Main Control -7-Bank
03***38Clamp1
13***14Grommet1
17***87Coil As-Heater1
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285-2268 Valve & Mtg Gp-Main Control -7-Bank
17***25Screw-Tapping; (M5x0.8-Thd)3
18***86Screw-Machine; (M4x0.7x8-mm)2
23***52Support As1
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217-9697 Valve & Mtg Gp-Main Control -7-Bank
09***83Shim (1.0 mm Thick)4
09***15Shim (2.0 mm Thick)4
09***34Shim; (T=69.85mm)2
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332-0965 Valve Gp-Bank 2
23***74Door Group-Access; -Air Filter1
23***12Door Group-Cab1
24***32Rops Group-Enclosed1
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328-1689 Valve Gp-Bank 7
23***60Plate1
23***08Window Group-Cab; -Side1
23***10Cab Group-Enclosed Rops1
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192-3284 Valve Gp-Counterbalance -Travel Motor
11***10Stud-Ball2
12***70Capscrew; (Button Hd) (M8x1.25x20) (G10.9)8
14***06Fastener15
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194-6973 Valve Gp-Brake -Pressure Release
19***73Valve Group-Brake; -Pressure Release1
19***80Guard Group-Window1
23***60Plate1
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192-3293 Valve Gp-Check & Relief -Travel Motor
19***93Valve Group-Check & Relief; -Travel Motor1
25***97Insert-Threaded2
28***79Door Group-Cab1
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244-7364 Valve Gp-Control -Lateral Tilt-Hf, Rotator-Hp
22***16Control Group-Handle; -Harvester Head, Rh1
22***17Harness As-Operator Controls; (Joystick)1
24***64Valve Group-Control; -Lateral Tilt-Hf, Rotator-Hp1
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227-2131 Valve Gp-Control -Travel
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***33Switch As-Pressure; (A/C)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
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247-7010 Valve Gp-Control -Saw Motor Control
13***92Retainer-Captive2
17***33Lamp; (Red)1
17***31Screw; (Truss Head) (M4x0.7x12mm)2
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227-2141 Valve Gp-Control -End Cover
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
22***39Control Group-Hydraulic Pedal; (Travel)2
22***73Plate4
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227-2132 Valve Gp-Control -Inlet
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
13***00Clip; (Tab)1
13***89Clip; (Ladder)1
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227-2133 Valve Gp-Control
18***84Cover1
22***33Valve Group-Control; -Accum Arms-Hf, Lo/Hi Flow-Hp-Grapple-Hf, High Flow-Hp1
24***23Console Group-Operator; -Lh1
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333-3729 Valve Gp-Control
27***33Seal-Washer2
28***70Knob4
29***38Bracket As2
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218-8376 Valve Gp-Control -Travel, 2-Bank
21***76Valve Group-Control; -Travel, 2-Bank1
25***97Insert-Threaded2
28***79Door Group-Cab1
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256-0520 Valve Gp-Control -Head Tilt-Hf, Blank-Hp
13***02Washer-Nylon; (0.53x1.53x0.125-In Thk)2
16***49Bolt; (M12x1.75x60-mm)4
21***29Block2
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234-0587 Valve Gp-Control -Boom
10***51Loom; (39 cm)0
16***18Kit-Receptacle; (8-Pin)1
17***08Switch As-Limit10
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227-2135 Valve Gp-Control -Swing
12***35Screw; (Truss Head) (M6x1x13mm)5
17***25Screw-Tapping; (M5x0.8-Thd)3
17***30Ashtray1
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227-2140 Valve Gp-Control -Travel
12***35Screw; (Truss Head) (M6x1x13mm)5
17***25Screw-Tapping; (M5x0.8-Thd)3
22***40Valve Group-Control; -Travel1
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242-4240 Valve Gp-Control -Intermittent Saw, 2-Bank
17***08Switch As-Limit8
24***40Valve Group-Control; -Intermittent Saw, 2-Bank1
26***01Film-Overlay; (6-Button, 11.5-mm)1
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244-7363 Valve Gp-Control -Stick
11***49Pedal Assem.; (L.H.)1
11***50Pedal Assem.; (R.H.)1
11***56Step Assem.2
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338-1091 Valve Gp-Control
09***36Screw; (Machine) (M5x0.8x10mm)2
20***05Latch As1
32***60Door1
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227-2137 Valve Gp-Control
12***35Screw; (Truss Head) (M6x1x13mm)4
18***84Cover1
22***37Valve Group-Control; -Felling Head Lateral Tilt1
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234-0586 Valve Gp-Control
23***13Control Group-Hydraulic Pedal1
23***86Valve Group-Control; -Inlet1
23***22Plate As1
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325-4351 Valve Gp-Control -Boom
25***38Hatch As1
27***53Bracket As2
27***33Seal-Washer1
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247-9847 Valve Gp-Control -Inlet
09***35Screw; (Machine) (M5x0.8x8mm)2
20***05Latch As1
24***81Door As; (Louver)1
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338-1090 Valve Gp-Control -Boom
27***33Seal-Washer6
28***70Knob4
28***53Seal; (26-Dm Each)0
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105-8117 Valve Gp-Counterbalance -Hood Tilt Cylinder
10***17Valve Group-Counterbalance; -Hood Tilt Cylinder1
11***10Stud-Ball2
12***70Capscrew; (Button Hd) (M8x1.25x20) (G10.9)8
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291-1122 Valve Gp-Flow Control
10***91Screw; (Flat Head) (No.6-20x0.5in)2
11***48Filter Element-Cab Air; (Standard Efficiency)1
16***74Louver As-Vent10
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338-1089 Valve Gp-Main Control
24***37Angle As2
24***38Angle As1
24***39Angle As1
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256-0500 Valve Gp-Main Control -7-Bank
24***20Plate2
24***34Angle As1
24***36Angle As1
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270-3521 Valve Gp-Pump Control -Pressure Compensator-Main Hydraulic
27***21Valve Group-Pump Control; -Pressure Compensator-Main Hydraulic1
31***17Plate2
31***18Plate1
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198-3811 Valve Gp-Pump Control -Pressure Compensator-Main Hydraulic
19***11Valve Group-Pump Control; -Pressure Compensator-Main Hydraulic1
25***48Window; (Center)1
25***50Window; (Left)1
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308-4489 Valve Gp-Pump Control -Pressure Compensator-Main Hydraulic
19***90Angle1
19***91Guard As1
30***89Valve Group-Pump Control; -Pressure Compensator-Main Hydraulic1
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319-7774 Valve Gp-Regeneration
12***28Seal; (17.2-cm Each)0
25***04Window-Roof; (Cab)1
25***09Bar1
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184-3830 Valve Gp-Relief -Swing Motor
18***30Valve Group-Relief; -Swing Motor1
28***53Seal; (26-Dm Each)0
32***16Seal-Washer2
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167-1555 Valve Gp-Selector & Press Cont -Boom
16***55Valve Group-Selector & Press Cont; -Pilot Oil Pressure1
17***12Cover1
17***13Housing1
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276-9072 Valve Gp-Shuttle -Signal
10***55Cover-Speaker2
11***19Bolt-Socket Head; (M4x0.7x25-mm)8
11***54Cover1
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116-3526 Valve Gp-Solenoid
11***26Valve Group-Solenoid; -Swing Cushion1
26***61Foam1
26***62Foam1
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152-8340 Valve Gp-Solenoid
12***98Bracket Assem.1
14***35Clip1
15***40Valve Group-Solenoid; -Reversing Fan, Ride Control1
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171-3685 Valve Gp-Solenoid
17***85Valve Group-Solenoid1
22***90Control & Mtg Group-Joystick; -Felling Head1
23***56Support Group-Seat1
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277-8876 Valve Gp-Solenoid
13***90Bushing; (Radio Mount)1
14***81Knob-Select; (Radio)1
16***26Radio Group; (Am/Fm Cd Player)1
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3e-9205 Valve Gp-Solenoid
25***25Foam1
26***60Foam1
26***61Foam1
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195-3739 Valve Gp-Solenoid -Pump Control
12***67Screw; (M6x1x8-mm)3
13***13Bolt; (M10x1.5x16-mm)2
19***39Valve Group-Solenoid; -Pressure Reducing1
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315-4412 Valve Gp-Solenoid
13***90Bushing; (Radio Mount)1
28***53Radio Group; -Am/Fm/Wb/Cd Player1
31***12Valve Group-Solenoid; -Fine Swing1
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196-5862 Valve Gp-Solenoid & Manifold -Pump Torque Limiter Control
19***62Valve Group-Solenoid & Manifold; -Pilot Lines-Proportional Reducing1
22***89Seat Group-Suspension; -High Back, Tilt1
6V***02Bolt-Socket Head; (M8x1.25x16-mm)4
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279-6518 Valve Gp-Solenoid & Manifold -Pilot Oil-Reversing Fan
23***20Seat Belt Group; -Retractable, 76-mm1
27***18Valve Group-Solenoid & Manifold; -Pilot Oil-Reversing Fan1
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222-5781 Valve Gp-Solenoid & Manifold -Disc Saw
22***81Valve Group-Solenoid & Manifold; -Disc Saw1
24***62Seat Group-Suspension; -Air Susp, High Back, Tilt1
6V***02Bolt-Socket Head; (M8x1.25x16-mm)4
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274-8742 Valve Gp-Solenoid & Manifold -Pilot Oil-Reversing Fan
27***42Valve Group-Solenoid & Manifold; -Pilot Oil-Reversing Fan1
8S***34Locknut; (Flange) (7/16-20 Thd)1
8S***23Bolt; (7/16-20x1.5-In)1
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322-8716 Valve Gp-Swing Cushion
23***20Seat Belt Group; -Retractable, 76-mm1
24***03Seat & Mounting Group; -High Back, Tilt1
32***16Valve Group-Swing Cushion; -Fine Swing1
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158-9090 Valve Gp-Swing Cushion -Fine Swing
15***90Valve Group-Swing Cushion; -Fine Swing1
17***59Handle; (Lumbar Support Adjuster)1
22***94Headrest As-Seat; -Cloth1
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Implements
348-7173 Boom Gp
23***57Support As1
34***73Boom Group1
7X***29Washer; (11x25x3-mm Thk)4
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226-5001 Boom Gp
22***01Boom Group1
22***90Seat Group; -High Back, Tilt1
24***63Protector, Suspension Group-Seat; -Air1
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212-8011 Boom Gp
21***11Boom Group1
22***77Suspension Group-Seat; -Mechanical1
22***90Seat Group; -High Back, Tilt1
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253-2605 Lines Gp-Grease -Boom, Stick
13***30Hinge-Lh2
15***15Gasket1
19***87Frame As-Lower1
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218-1918 Lines Gp-Grease -Boom
12***35Screw; (Truss Head) (M6x1x13mm)4
21***18Lines Group-Grease; -Boom1
22***64Handle As1
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218-1917 Lines Gp-Grease -Boom, Stick
14***21Kit-Clip; (Seat)1
21***17Lines Group-Grease; -Boom, Stick1
24***68Cover As1
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212-8010 Linkage Ar-Felling Head
19***92Window Group-Cab; -Lh1
21***10Linkage Ar-Felling Head1
23***86Window; (Left Side, Front, Upper)1
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282-3069 Linkage Ar-Felling Head
252-8713 Linkage Ar-Harvester Head
282-3012 Linkage Ar-Harvester Head
252-8717 Linkage Ar-Intermittent Saw
284-5617 Linkage Ar-Intermittent Saw
212-8014 Linkage Gp-Felling Head
347-6972 Stick Gp
24***41Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch)1
25***61Film-Information; (Cat Power, Acert Technology)2
25***68Film-Information; (Weight Limit, Platform)1
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226-5002 Stick Gp -Harvester Head
11***95Film-Instruction; (Air Conditioner)1
12***80Film-Instruction; (Hydraulic Tank Oil Drain)1
13***59Plate-Identification; (Engine Stop, Run)1
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212-8012 Stick Gp -Felling Head
Lubrication System
226-3560 Filler Gp-Engine Oil
03***34Seal-O-Ring1
19***52Gasket1
20***82Bolt; (M8x1.25x25-mm)2
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220-1998 Filter Gp-Engine Oil
18***99Connector As1
18***04Elbow As; (90 Degree)1
19***19Gasket; (Coated Metal)1
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226-3559 Fumes Disposal Gp
21***22Pump As-Engine Oil1
21***46Gerotor Pump Group1
22***44Gear Assem.; (60 Teeth)1
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219-9960 Gauge Gp-Oil Level (Dipstick) -Engine
20***93Gasket1
21***60Gauge Group-Oil Level (Dipstick); -Engine1
29***67Core As-Oil Cooler; (Engine)1
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202-6603 Lines Gp-Engine Oil
20***03Lines Group-Engine Oil1
21***62Radiator & Mounting Group1
21***63Lines Group-Cooling; -Rad, Aftercooler, Hydraulic Cooler1
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165-4465 Lines Gp-Turbocharger Oil
14***38Adapter, -6 Orb / Orfs X-Long2
14***69Adapter; (90° Elbow Orfs/Orb)2
16***70Connector As2
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195-8098 Pump Gp-Engine Oil
11***73Bolt-12 Point Head; (M10x1.5x35-mm)4
13***40Spider As-Fan; (8-Blade)1
19***55Belt-Serpentine; (Fan Drive)1
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Machine Arrangement
272-0051 Chassis Ar
21***00Installation Ar-Engine1
21***60Cooling Ar1
21***82Undercarriage Ar; -Without Tilt Function1
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319-6600 Cold Weather Ar
21***97Valve & Mtg Group-Main Control; -7-Bank1
21***00Pump & Mtg Group-Main Hydraulic; -Felling Head1
26***30Film-Instruction; (Joystick Control, Pattern 1)1
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272-0048 Common Ar
21***97Valve & Mtg Group-Main Control; -7-Bank1
26***30Film-Instruction; (Joystick Control, Pattern 1)1
27***48Common Ar1
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293-0200 Conversion Ar-Machine
11***86Flywheel Group1
11***94Fastener Group-Flywheel; (Flywheel)1
11***27Cover Group-Front Housing; -Accessory Drive1
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242-5335 Conversion Ar-Machine -Without Front Linkage
11***34Tee-O-Ring1
16***72Tee As1
24***35Conversion Ar-Machine; -Without Front Linkage1
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293-0189 Parts Gp-Miscellaneous
16***48Crankshaft Group1
18***26Cooler Group-Engine Oil1
19***98Pump Group-Engine Oil; (Engine Oil)1
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293-0188 Special Ar -Includes Swing Gear, Bearing
21***55Mounting Group-Engine1
21***56Air Cleaner Group; -With Precleaner1
21***57Muffler Group1
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Operator Station
245-7896 Adjuster Gp-Seat -Lower Slide
24***96Adjuster Group-Seat; -Lower Slide1
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245-7889 Adjuster Gp-Seat -Upper Slide
24***89Adjuster Group-Seat; -Upper Slide1
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243-6303 Air Conditioner & Mounting Gp
24***03Air Conditioner & Mounting Group1
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250-0398 Air Conditioner Gp
243-6304 Air Conditioner Gp
238-1027 Air Conditioner Gp
259-7347 Armrest Gp -Lh
234-6607 Armrest Gp -Lh
259-7346 Armrest Gp -Rh
234-6606 Armrest Gp -Rh
238-5010 Cab Gp-Enclosed Rops
320-7458 Cab Gp-Enclosed Rops
238-5013 Cab Gp-Enclosed Rops
320-7457 Cab Gp-Enclosed Rops
246-7154 Case Gp-Air Conditioner
226-3561 Compressor Gp-Refrigerant
245-7924 Console Gp-Operator -Rh
243-5686 Console Gp-Operator
245-7923 Console Gp-Operator -Lh
259-7348 Console Gp-Operator -Rh
259-7349 Console Gp-Operator -Lh
223-0671 Control & Mtg Gp-Joystick -Harvester Head
22***71Control & Mtg Group-Joystick; -Harvester Head1
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224-4990 Control & Mtg Gp-Joystick -Felling Head
22***90Control & Mtg Group-Joystick; -Felling Head1
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238-8167 Control & Mtg Gp-Pedal
223-0716 Control Gp-Handle -Harvester Head, Rh
22***16Control Group-Handle; -Harvester Head, Rh1
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223-0715 Control Gp-Handle -Harvester Head, Lh
22***15Control Group-Handle; -Harvester Head, Lh1
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235-4122 Control Gp-Handle -Felling Head
23***22Control Group-Handle; -Felling Head1
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231-2613 Control Gp-Hydraulic Pedal
283-2394 Control Gp-Joystick -Harvester Head, Lh
28***94Control Group-Joystick; -Harvester Head, Lh1
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283-2393 Control Gp-Joystick -Felling Head
28***93Control Group-Joystick; -Felling Head1
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283-2395 Control Gp-Joystick -Harvester Head, Rh
28***95Control Group-Joystick; -Harvester Head, Rh1
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319-6719 Control Gp-Monitor -Iqan
272-0446 Control Gp-Monitor -Iqan
298-1567 Door Gp-Access -Cab Roof
256-1296 Door Gp-Access -Cab Roof
256-7304 Door Gp-Access -Cab Roof
320-7459 Door Gp-Access -Cab Air Filter
32***59Door Group-Access; -Cab Air Filter1
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237-2374 Door Gp-Access -Air Filter
238-5012 Door Gp-Cab
282-2679 Door Gp-Cab
334-1077 Door Gp-Cab
239-1378 Duct Gp-Cab Air
321-3821 Frame Gp-Window
258-0699 Frame Gp-Window -Thick Glass
25***99Frame Group-Window; -Thick Glass1
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250-0861 Frame Gp-Window
197-9880 Guard Gp-Window
329-5158 Hatch Gp-Roof
253-9594 Hatch Gp-Roof
323-2220 Hatch Gp-Roof
251-6761 Housing Gp-Air Conditioner -Outlet Air
25***61Housing Group-Air Conditioner; -Outlet Air1
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238-5024 Installation Gp-Radio
263-2766 Liner Gp-Cab
340-5084 Liner Gp-Cab
325-8562 Liner Gp-Cab
261-1090 Lines Gp-Air Conditioner
251-6137 Mounting Gp-Cab
282-2698 Operator Ar
238-5004 Operator Ar
238-5020 Platform Gp-Operator
285-2371 Radio Gp -Am/Fm Cassette, Cd Changer
28***71Return Pipe, Radio Group; -Am/Fm Cassette, Cd Changer1
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349-7701 Radio Gp -Am/Fm/Wb/Cd
284-8953 Radio Gp -Am/Fm/Wb/Cd Player
28***53Radio Group; -Am/Fm/Wb/Cd Player1
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240-5061 Seat & Mounting Gp -Air Suspension
24***61Seat & Mounting Group; -Air Susp, High Back, Tilt1
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240-5003 Seat & Mounting Gp -High Back, Tilt
24***03Seat & Mounting Group; -High Back, Tilt1
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235-9020 Seat Belt Gp -Retractable, 3-In
23***20Seat Belt Group; -Retractable, 76-mm1
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240-5039 Seat Belt Gp
24***39Seat Belt Group; -Retractable, 76-mm1
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242-3122 Seat & Mounting Gp -High Back, Tilt
229-9090 Seat Gp -High Back, Tilt
240-5062 Seat Gp-Suspension -Air
24***62Seat Group-Suspension; -Air Susp, High Back, Tilt1
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229-9089 Seat Gp-Suspension -High Back, Tilt
22***89Seat Group-Suspension; -High Back, Tilt1
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235-8856 Support Gp-Seat
229-9077 Suspension Gp-Seat
22***77Suspension Group-Seat; -Mechanical1
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245-7892 Suspension Gp-Seat
24***92Suspension Group-Seat; -Mechanical1
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240-5063 Suspension Gp-Seat -Air
24***63Protector, Suspension Group-Seat; -Air1
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273-5384 Suspension Gp-Seat -Air
340-5085 Trim Gp-Cab
320-7473 Trim Gp-Cab
238-5025 Trim Gp-Cab
196-2392 Window Gp-Cab -Lh
238-5008 Window Gp-Cab -Side
317-3155 Window Gp-Cab -Lh
321-3822 Window Gp-Cab
266-3093 Window Gp-Cab -Front
Power Train
318-9121 Drive Gp-Final
10***76Support As1
10***80Spring1
10***81Support1
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165-6209 Final Drive & Brake Gp
16***09Final Drive & Brake Group1
25***95Roller Group-Track-Single Flange4
28***75Track Group; -Rh1
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279-9869 Final Drive Gp
20***64Roller Group-Track-Single Flange1
27***69Final Drive Group1
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185-0672 Sprocket Gp
18***72Sprocket Group1
1S***60Nut-Track; (3/4-16-Thd)196
20***97Shoe-Track49
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Service Equipment And Supplies
279-3457 Film-Instruction -Joystick Control, Pattern 7
27***57Film-Instruction; -Joystick Control, Pattern 71
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279-3454 Film-Instruction -Joystick Control, Pattern 4
27***54Film-Instruction; -Joystick Control, Pattern 41
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279-3455 Film-Instruction -Joystick Control, Pattern 5
27***55Film-Instruction; -Joystick Control, Pattern 51
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269-5492 Film-Instruction -Joystick Control, Pattern 7
26***92Film-Instruction; -Joystick Control, Pattern 71
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269-5488 Film-Instruction -Joystick Control, Pattern 3
26***88Film-Instruction; -Joystick Control, Pattern 31
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259-1068 Film-Instruction -Joystick Control, Pattern 1
25***68Film-Instruction; -Joystick Control, Pattern 11
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279-3452 Film-Instruction -Joystick Control, Pattern 2
27***52Film-Instruction; -Joystick Control, Pattern 21
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269-5490 Film-Instruction -Joystick Control, Pattern 5
26***90Film-Instruction; -Joystick Control, Pattern 51
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279-3453 Film-Instruction -Joystick Control, Pattern 3
27***53Film-Instruction; -Joystick Control, Pattern 31
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269-5775 Film-Instruction -Joystick Control, Pattern 2
26***75Film-Instruction; -Joystick Control, Pattern 21
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269-5491 Film-Instruction -Joystick Control, Pattern 6
26***91Film-Instruction; -Joystick Control, Pattern 61
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269-5489 Film-Instruction -Joystick Control, Pattern 4
26***89Film-Instruction; -Joystick Control, Pattern 41
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279-3456 Film-Instruction -Joystick Control, Pattern 6
27***56Film-Instruction; -Joystick Control, Pattern 61
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285-5316 Plate & Film Gp
286-9990 Plate & Film Gp
Undercarriage
224-9939 Frame Gp-Undercarriage
20***08Drive Group-Swing1
20***13Motor & Mtg Group-Swing1
22***39Frame Group-Undercarriage1
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207-4492 Guard Gp-Travel Motor
20***08Drive Group-Swing1
20***92Guard Group-Travel Motor1
28***04Motor & Mtg Group-Swing1
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207-0469 Idler Gp-Front
09***84Seal-O-Ring (Id=15.80mm)1
09***90Seal-O-Ring (Id=21.80mm)1
09***96Seal-O-Ring (Id=28.70mm)1
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185-0671 Idler Gp-Front
18***71Idler Group-Front1
18***84Filter & Valve Group-Pilot; -Hydraulic Oil1
28***36Filter & Valve Group-Pilot; -Hydraulic Oil1
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207-0470 Idler Gp-Front
09***84Seal-O-Ring (Id=15.80mm)1
09***90Seal-O-Ring (Id=21.80mm)1
09***96Seal-O-Ring (Id=28.70mm)1
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269-7858 Link As-Track -Grease Lubricated Track
09***84Seal-O-Ring (Id=15.80mm)1
09***90Seal-O-Ring (Id=21.80mm)1
09***96Seal-O-Ring (Id=28.70mm)1
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336-7736 Roller Ar-Track -Star
1A***35Bolt 2.00 In. (5.08 cm) Long4
1R***92Filter Element As-Oil; (Advanced Efficiency)3
2S***78Seal-O-Ring (Id=37.47mm)1
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336-7735 Roller Ar-Track -Carrier Roller
09***21Filter-Oil; (Advanced Efficiency)(Hydraulic, Case Drain)1
12***76Base As; (Oil Filter)1
33***35Roller Ar-Track; -Carrier Roller1
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228-6415 Roller Ar-Track & Carrier
09***21Filter-Oil; (Advanced Efficiency)(Hydraulic, Case Drain)1
22***15Roller Ar-Track & Carrier1
28***95Head As-Filter1
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206-1263 Roller Gp-Track-Double Flange
09***19Seal-O-Ring (Id=15.80mm)4
20***63Roller Group-Track-Double Flange1
23***57Pipe1
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247-0565 Roller Gp-Track-Single Flange
12***94Plug; (Break Off)1
12***17Plug1
12***62Seal-O-Ring2
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254-4095 Roller Gp-Track-Single Flange
12***94Plug; (Break Off)1
12***17Plug1
12***84Pin; (Threaded)2
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206-1264 Roller Gp-Track-Single Flange
08***59Plug As1
09***32Bolt-Socket Head; (M12x1.75x95-mm)2
09***04Bolt-Socket Head; (M12x1.75x110-mm)4
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101-7875 Spring Gp-Recoil
10***75Spring Group-Recoil1
21***89Drive Ar-Swing1
21***90Pump & Lines Group-Hydraulic Tank Fill1
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102-8109 Adjustment Gp-Hydraulic Track
09***30Ring; (Retaining)2
09***31Ring - Retaining1
09***57Gauge-Oil Level (Dipstick)1
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288-0602 Track Ar
21***89Drive Ar-Swing1
21***90Pump & Lines Group-Hydraulic Tank Fill1
21***92Lines Group-Return1
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287-8275 Track Gp -Rh
14***55Union As22
15***26Union Assembly2
20***29Tag-Identification; (Saw Oil Drain)2
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269-7860 Track Gp -2-Required
21***97Valve & Mtg Group-Main Control; -7-Bank1
21***00Pump & Mtg Group-Main Hydraulic; -Felling Head1
22***71Control & Mtg Group-Joystick; -Harvester Head1
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269-7859 Track Gp -2-Required
21***00Pump & Mtg Group-Main Hydraulic; -Felling Head1
25***50Lines Group-Saw1
25***68Film-Instruction; -Joystick Control, Pattern 11
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269-7861 Track Gp -2-Required
21***97Valve & Mtg Group-Main Control; -7-Bank1
22***71Control & Mtg Group-Joystick; -Harvester Head1
26***61Track Group; -2-Required1
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269-7862 Track Gp -2-Required
21***30Kit-Seal; (Control Valve)1
26***62Track Group; -2-Required1
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287-8276 Track Gp -Lh
11***60Union1
14***55Union As8
15***26Union Assembly4
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219-4800 Undercarriage Ar
21***00Undercarriage Ar1
28***01Lines Group-Front; -Boom, Stick1
28***02Lines Group-Front; -Boom, Felling Head1
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219-4782 Undercarriage Ar -Without Tilt Function
10***77Bolt-Socket Head; (M10x1.5x45-mm)4
15***62Union As1
1P***02Seal-Rectangular 28.83mm(1.136in) Id13
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219-4802 Undercarriage Ar
03***57Washer; (13x26x6-mm Thk)4
10***77Bolt-Socket Head; (M10x1.5x45-mm)4
15***62Union As1
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219-4801 Undercarriage Ar
03***57Washer; (13x26x6-mm Thk)4
10***77Bolt-Socket Head; (M10x1.5x45-mm)4
14***27Connector Group3
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239-1304 Undercarriage Ar
14***27Connector Group3
14***31Tee Group1
15***36Reducer As1
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521 serial number reference

On Cat track feller bunchers the PIN plate sits on the machine frame/carbody, typically low on the right-hand side near the undercarriage or frame rail rather than in the cab. Check there first, and separately note any plate on the engine itself, since 521B engine serial numbers run on their own THX/TXD ranges distinct from the machine's F7B chassis PIN. Read the first three characters as the serial prefix (identifies model or engine arrangement) and the digits that follow as the sequential unit number within that prefix.

PrefixIdentifies
521521 Track Feller Buncher — first generation
F7B521B Track Feller Buncher — zero tail swing (ZTS) second generation
THX521B (F7B chassis) — C9 ACERT engine serial range, first arrangement
TXD521B (F7B chassis) — C9 ACERT engine serial range, alternate arrangement

Frequently asked questions

What engine powers the Cat 521 forestry machine?

Both series use the Cat C9 ACERT diesel. The base 521 (through 2012) is rated 284 hp gross / 263 hp net. The 521B (from December 2012) carries an updated tune of the same C9 ACERT rated 303 hp gross / 282 hp net.

What is the operating weight of the Cat 521?

Operating weight runs roughly 26,000 to 27,500 kg (57,000 to 62,000 lb), varying by series, feller-buncher versus harvester configuration, and which felling head is fitted. Treat any single published figure as configuration-dependent.

What replaced the Cat 521?

Caterpillar replaced the base 521 with the zero-tail-swing 521B starting December 2012, adding a heavier D7-class undercarriage and more engine power. No further successor to the 521B has been formally announced; it remains Caterpillar's current model in this size class within the 511/521/522/532 forestry family.

What 521 owners discuss

How does the 521B's powertrain and hydraulic package hold up in daily forestry duty?
The C9 ACERT engine paired with dual variable-displacement pumps is regarded as one of the sturdier setups in the mid-size zero-tail-swing class. Travel and implement functions run off separate pumps, and hot saw or intermittent-saw attachments get their own dedicated pump so saw speed does not bog down when the machine travels or the boom works. Saw wander or stall under a heavy bite is usually traced to low saw-circuit charge pressure or a weak accumulator, not the main pump. Have your dealer verify saw-circuit charge pressure and accumulator precharge if the saw feels lazy or stalls under load.
What undercarriage wear patterns are typical, and how does the 521B undercarriage differ from the base 521?
The 521B moved to larger, 330-class undercarriage components and a welded track-frame-to-carbody design at a fixed gauge, cutting flex and stretching roller and link life compared with the original 521. Buyers can spec standard single-flange carrier rollers for moderate terrain and warm climates, or star carrier rollers for severe terrain and cold climate work; match the spec to the machine's actual working ground, not the sale price. Cross-slope cutting and high-torque travel wear rollers and links faster than flat-ground excavator duty. A weeping roller or idler seal is treated as an immediate pull-and-inspect item, since running on a leaking seal is what turns a seal job into a bearing failure.
What engine quirks show up across the 511/521/522/532 C9 and C9 ACERT lineup?
The first-generation 521 (C-9) and the 521B (C9 ACERT) share the same HEUI-fueled architecture, so most engine complaints carry across the family regardless of series letter. The most repeated field failure is guide springs on the valve lifter assemblies breaking, letting the lifter walk and hammering the cam lobe. Caterpillar's own service bulletin covers this on C9 and the related C9.3 family and calls for an updated guide-spring design during any top-end repair. This can go from a valve-train tick to a scored camshaft within a few hundred hours. Have your dealer verify guide-spring condition at every valve-lash service instead of waiting for a noise complaint.
What electrical or sensor issues get reported most on these machines?
Intermittent boost-pressure and fuel-pressure sensor faults are the top electrical complaint on C9 ACERT installations. The buncher's ECM strategy matches the on-highway and industrial C9, so the same failure modes carry over. Typical pattern: full power for about a minute after startup, then a derate, a long cool-down, then the cycle repeats. Owners often replace the sensor first, but connector corrosion or an intermittent ground is at least as common a root cause. Standard fix path: clean and inspect the pressure transducer connectors, log live sensor data through a full duty cycle instead of relying on stored fault codes, then replace the sensor only once wiring and grounds check out clean.
Any other hydraulic or service-interval quirks worth knowing?
Factory hydraulic oil change interval is 2000 hours, extendable to 4000 hours only if the machine runs Cat's extended-life hydraulic fluid and gets oil sampled at the 500-hour checkpoints. Skipping the sampling and running to 4000 hours anyway is the shortcut that shows up later as varnished valves and slow function response. Engine oil interval is rated at 500 hours, but severe-duty forestry cycles (dust, sustained high load) push some operators back to a 250-hour interval, using S.O.S trend data to decide whether the longer interval is safe for that specific machine and duty cycle.
What should a buyer check on a used 521 or 521B before purchase?
Pull maintenance and oil-sample history if it exists; these machines rarely see light duty, and gaps in the record usually mean gaps in care. Check every track roller and idler for weeping seals and heat staining, the tell for bearing damage already underway. Inspect the boom, felling-head mount, and accumulator-arm pivots for stress cracking or built-up weld repair, common on high-cycle machines. Confirm the saw or shear head installed actually matches the carrier's hydraulic circuit sizing, since hot saw, disc saw, and shear heads draw different flow. Run the saw or shear function under a real load, not just at idle, to expose a lazy dedicated pump or a weak accumulator before it becomes the new owner's problem. Given the rotating mass and stored hydraulic energy in the felling head, have your dealer verify saw or shear hydraulic integrity and structural welds before the machine goes back into production cutting.
How do owners describe the differences among the 511, 521, 522, and 532 within this family?
The four models are treated as one scaled hydraulic and electrical platform rather than four distinct designs. The 511 and 521 use integrated, welded track guards; the larger 522 and 532 move to bolt-on guards, reflecting their heavier-duty positioning. Buyers cross-shopping within the family are told to pick by tree size and ground conditions rather than model number: the 521 covers small to large timber in a genuinely zero-tail-swing footprint, while the 522 and 532 step up saw or shear capacity and reach for bigger stems. Attachment and hydraulic circuit sizing differ by model, so matching head weight and flow requirement to the specific carrier matters more than the badge on the door.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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