Caterpillarwheel-type skidderfeller buncher
Caterpillar FB518
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar FB518 is a wheel-type feller buncher: a felling-head conversion of the Cat 518 wheel skidder chassis, with the operator station reversed and a shear or Roto-Saw felling head fitted where the grapple or arch normally mounts. Power comes from a Cat 3304 turbocharged 4-cylinder diesel, mechanically injected, rated around 89 kW (120 hp), with some configuration listings showing 97 kW (130 hp). Operating weight for the felling-head configuration is not separately published; the shared 518 skidder chassis runs approximately 9,698 kg (21,380-22,000 lb), and the FB518's own weight diverges with the felling head, different flotation tires, and the reversed cab. Production centers on the mid-1980s, tied to the confirmed 8ZC serial-prefix range. No documented predecessor or successor ties directly to the FB518 by name; it is a period conversion of the 518/518-II skidder line rather than a standalone factory model series, offered with either a shear-type or Roto-Saw felling head depending on the unit.
Because the FB518 shares its chassis, engine, powertrain, and hydraulics with the base 518 wheel skidder, most drivetrain changes across the 518 line -- powershift transmission behavior, 3304 tune and turbo fitment, and axle and brake hardware -- carry over to any FB518 built on that chassis. Caterpillar never developed a dedicated factory feller-buncher successor on this same wheel-skidder platform; its later purpose-built felling and harvesting machines are a separate product line, not a confirmed continuation of the FB518. That makes the FB518 a genuinely thin, low-volume model in the used and parts market today: buyers and parts counters typically work from 518/518-II skidder documentation and cross-reference it against the felling-head conversion, verifying serial prefix, engine tune, and hydraulic circuit configuration machine by machine rather than assuming one fixed spec.
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 FB518 specifications
Engine
| Engine model | Cat 3304 (turbocharged, 4-cylinder), also referenced in period literature as D330 |
| Displacement | 7.0 L (425 cu in) |
| Cylinders | 4, in-line, turbocharged |
| Power | approx. 89 kW (120 flywheel hp); some configuration listings show 97 kW (130 hp) — varies by configuration/series |
| Emissions tier | Pre-emissions-regulation era, no tier rating applicable |
Weights
| Base chassis operating weight (518 skidder configuration) | approx. 9,698 kg (21,380-22,000 lb) — figure is for the shared 518 skidder chassis; FB518 buncher configuration weight not independently published |
| Shipping weight | not documented for this configuration |
| Ground pressure | not published |
Dimensions
| Overall length (base chassis) | approx. 5.23 m (17 ft 2 in) on the shared 518 skidder chassis; FB518 overall length changes with the felling head and reversed operator station and is not separately published |
| Overall width | approx. 2.51 m (8 ft 3 in), base chassis figure |
| Height to cab | approx. 2.79 m (9 ft 2 in), base chassis figure |
| Wheelbase | approx. 2.90 m (9 ft 6 in) |
| Ground clearance | approx. 0.51 m (1 ft 8 in) |
| Tire size | varies by configuration; base chassis spec sheets list 18.4-34 front to 28.1-16 rear, while surviving FB518 units are documented on 24.4-32 tires — varies by configuration |
Performance
| Travel speed, forward | approx. 26.6 km/h (16.5 mph) max, 3 forward gears, base chassis figure |
| Travel speed, reverse | approx. 31.9 km/h (19.8 mph) max, 3 reverse gears, base chassis figure |
| Configuration note | FB518 is a wheel-type feller buncher built on the 518 skidder chassis with the operator station reversed and a felling head (shear or Roto-Saw type, depending on the unit) fitted in place of the grapple/arch. No independent felling-cycle or drawbar performance figures are published for this configuration. |
| Gradeability | not published |
Service capacities (summary)
| Fuel tank | approx. 151 L (40 US gal), base chassis figure |
| Hydraulic system | approx. 28.4 L (7.5 US gal) reservoir, piston-pump circuit rated near 172 L/min (45.5 gal/min) flow, relief setting near 20,700 kPa (3,000 psi) — base chassis figures |
| Engine oil | not documented for this exact configuration — verify with your dealer |
| Cooling system | not documented for this exact configuration — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
FB518 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) - Cat 3304 turbocharged 4-cylinder diesel | Not documented specifically for the 518/FB518 chassis installation. The bare Cat 3304 engine family lists a lube-system refill near 31.4 L (8.3 US gal), but that is a generic engine-family figure, not confirmed against the oil pan/sump as installed on this chassis - treat as an approximate reference only and verify against the OMM or a dealer before servicing. | Cat DEO (Diesel Engine Oil), selected by ambient temperature per Cat's viscosity-by-temperature guidance for this engine family: SAE 15W-40 for general/warmer-climate service, SAE 10W-30 for colder ambient. Commercial oils meeting Cat's diesel engine oil spec for this era are also acceptable. |
| Cooling system | Not documented specifically for the 518/FB518 chassis installation. The bare Cat 3304 engine family lists a jacket-water capacity near 15.9 L (4.2 US gal), but this is an engine-only figure and excludes the radiator/system total as installed in this chassis - not confirmed for this machine, verify with your dealer or the OMM cooling-system section. | Factory-fill for this vintage of Cat machine was a conventional ethylene-glycol antifreeze/coolant (Cat DEAC-type), requiring periodic conditioning with a Supplemental Coolant Additive. Cat ELC (Extended Life Coolant) is Caterpillar's later/current recommended upgrade coolant; whether a specific FB518/518 OMM printing lists ELC depends on production date. |
| Fuel tank | approx. 151.4 L (40 US gal), for the shared 518 wheel-type-skidder chassis. FB518-specific tank capacity is not separately published; the FB518 buncher and 518/518-II skidder share parts/service documentation, which supports treating this as a shared base-chassis figure. | No. 2-D type diesel fuel (or local seasonal-blend equivalent) per Caterpillar's engine fuel specification for this pre-emissions engine generation; cold-weather blends recommended below freezing. No Cat-branded fuel additive is specified as mandatory in sources reviewed. |
| Hydraulic system / tank | approx. 28.4 L (7.5 US gal) reservoir, for the shared 518 wheel-type-skidder chassis. The FB518's felling-head circuit may add incremental reservoir/line volume, but no separately published figure exists for that - treated as a shared base-chassis figure. | Cat TDTO (Transmission/Drive Train Oil) or Cat HYDO, selected by ambient temperature (SAE 10W/20W/30 grades). Cat forestry/skidder machines of this era commonly share power-train oil across the hydraulic and drive-train circuits; confirm the exact fluid callout against the OMM's fluid-recommendation chart. |
| Power train - transmission / torque converter compartment | approx. 32.2 L (8.5 US gal) for the 518 skidder power-train/torque-converter compartment - single-sourced and not independently cross-verified; treat as approximate pending confirmation against the OMM. | Cat TDTO (Transmission/Drive Train Oil), a TO-4-specification multiviscosity oil, supplied in SAE 10W, SAE 30, and SAE 50 grades selected by ambient temperature (10W for cold starts, 30 for moderate ranges, 50 for sustained hot climates). Commercial oils meeting the Cat TO-4 specification are cited by Caterpillar as acceptable alternatives. |
| Final drives / axle-differential compartments (front and rear) | Not documented for the 518 or FB518 - verify with your dealer or the OMM's power-train service section before servicing. | Cat TDTO (the same TO-4-spec oil used in the transmission/power train), SAE grade selected by ambient temperature - standard Caterpillar practice for wheel-skidder final drives and axle housings of this era, though not independently confirmed for this specific model. |
| Grease specification (chassis pins, bushings, articulation hitch, felling-head/arch pivots as configured) | Not a refill-capacity item - applied via grease gun at chassis, articulation-hitch, and arch or felling-head pivot points per the OMM's periodic lubrication schedule; exact point count varies with skidder-arch vs. felling-head configuration. | Cat Multipurpose Grease, NLGI Grade 2, lithium-base EP formulation - Caterpillar's standard general-purpose chassis grease recommendation for wheel skidders of this class. A multipurpose NLGI 2 EP grease is an acceptable substitute if Cat-branded product is unavailable. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar FB518 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the FB518 beyond the schedule
Predictive Maintenance & Fluid Analysis
On the FB518, fluid sampling is the main predictive tool on a mechanical, non-ECM machine. Pull transmission oil samples regularly -- milky, water-contaminated fluid is the leading cause of clutch-pack slippage in the powershift. Sample final drive and axle oil for metal and water intrusion; felling-head front-end loading accelerates front axle wear versus a stock skidder. Track hydraulic oil condition against shear or Roto-Saw cycle load, and watch for injection pump timing drift, an early indicator of power loss and smoke on the 3304.
Corrective & Common Repairs
Common corrective work on the FB518 centers on the 3304's fuel system and the powershift transmission. Injection pump timing drift and a sticking governor rack are the recurring causes of low power, heavy smoke, or an engine that won't respond to throttle -- have a dealer verify rack travel before condemning the pump. Transmission no-pull complaints usually trace to water-contaminated fluid rather than worn clutches; check filter pressure before a rebuild. On winch-equipped units, spool-out failures often trace to reversed valve lines or worn clutch tolerances, not a bad winch.
Overhaul & Rebuild Points
Overhaul planning on the FB518 follows the shared 518 chassis; no separate factory overhaul schedule is published for the buncher configuration. Expect powershift clutch pack and converter inspection as a major rebuild point once fluid analysis shows persistent slippage. Injection pump and governor rebuild follows sustained timing drift or rack sticking that adjustment can't resolve. Axle housing and brake seal replacement is safety-critical -- seal failures on this chassis generation have been reported as sudden, not gradual; inspect groove dimensions at overhaul, not seal condition alone.
Seasonal & Environmental Servicing
Cold-weather starts on the mechanically injected 3304 depend on correct fuel blend and battery/glow-plug condition, since there's no ECM to compensate for cold-start fueling. Switch to a cold-ambient TDTO grade in the transmission and final drives before winter, and confirm coolant is a glycol mix with supplemental additive intact. In wet or muddy logging conditions, check axle seals more often -- water ingress through worn seals is a known contamination path for final drive and axle oil on this chassis. Grease articulation and felling-head pivots more often in dusty terrain.
FB518 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1P-2299 | Filter As-Fuel | Fuel system service | Check fitment → |
| 6V-7615 | Film-Identification-On Fuel Filter | Fuel system service | Check fitment → |
| 5P-9141 | Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
FB518 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant Temperature warning lamp (red) | Engine coolant temperature has exceeded the safe operating range. | Low coolant level, blocked or dirty radiator core, slipping or broken fan belt, thermostat failure. | Stop the machine, idle down, and shut off the engine. Check coolant level and radiator/fan for debris before restarting. |
| Engine Oil Pressure warning lamp (red) | Engine oil pressure has dropped below the safe minimum. | Low oil level, failing oil pump, worn main/rod bearings, plugged oil pickup or filter. | Shut the engine down immediately, check oil level, and confirm pressure with a mechanical test gauge before restarting. |
| Charging System warning lamp (red, battery symbol) | Alternator is not charging the battery. | Slipping or broken alternator belt, worn brushes, faulty regulator, loose or corroded wiring connections. | Check belt tension and battery terminals, then test alternator output with a multimeter; service or replace as needed. |
| Hydraulic Filter Bypass indicator (amber) | Hydraulic return filter is restricted and oil is bypassing the element unfiltered. | Clogged or overdue hydraulic filter element, degraded hydraulic oil, cold-start high viscosity. | Let the machine warm up; if the indicator stays on, replace the hydraulic filter element and inspect oil condition. |
| Air Filter Restriction indicator | Engine air intake filter is restricting airflow beyond the allowable limit. | Dirty or clogged primary air filter element, damaged intake ducting. | Service or replace the air filter element and inspect intake hoses and clamps for leaks or damage. |
| Hydraulic Oil Temperature gauge - high reading | Hydraulic system oil temperature is above normal operating range. | Low hydraulic fluid level, plugged oil cooler, prolonged high-load felling/carrying cycles, cooler fan issue. | Reduce work cycle intensity, check fluid level, and inspect the hydraulic oil cooler core for blockage. |
| Parking Brake indicator lamp | Park brake is engaged. | Operator left the park brake set, or brake solenoid/switch is faulty. | Confirm brake lever position before attempting to drive; if the lamp stays on with the brake released, check the brake switch and wiring. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
FB518 attachments & work tools
Grapple heads
Dual-arch and single-arch grapple arrangements are documented for this class, with a hydraulically actuated tong opening of roughly 2.1 m (6.8 ft) tip-to-tip. Swing-boom and single-function sorting grapple variants are also documented alongside the standard skidding grapple.
Cable/winch arrangement
A drum winch with roughly 26,000 lb bare-drum line pull and about 75 m (250 ft) of cable capacity equips the cable-skidder configuration, replacing the grapple on the rear arch. Winches from more than one supplier are documented on this chassis across its production life, so confirm the fitted unit before ordering drum or cable parts.
Arch/boom mounting
Grapple and winch tools mount to a rear arch frame rather than a quick-coupler system. Single-arch and dual-arch frames are the two documented mounting styles, and the arch style in place governs which grapple or winch can be fitted.
Integral clearing blade
A front push/clearing blade around 2.15 m (7.1 ft) wide is standard equipment for this skidder class, used to berm logs and clear light debris rather than for production dozing.
Feller-buncher (FB) configuration
An FB-badged wheel feller-buncher variant was built on this same chassis, reversed and fitted with a rotary felling head in place of the arch-mounted grapple/winch. Documentation on felling-head sizing and cutting capacity is thin for this configuration; treat it as unconfirmed and verify with a dealer or period service literature before ordering parts.
Tire/flotation options
Both 23.1-26 and 24.5-32 tire sizes are documented for this class, selected for ground flotation depending on terrain and hauling load. Tire size does not change the arch, grapple, or winch mounting.
Cab/guarding options
Open canopy (ROPS) and enclosed cab configurations are both documented, along with heavier operator-station screening on grapple- and winch-equipped units to guard against swinging logs and cable whip.
All FB518 assemblies by section
Every catalogued assembly group for the Caterpillar FB518. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
1w0216 Cleaner Group-Air
| 1W***16 | Air Cleaner Group | 1 |
1w0217 Cleaner Group-Air
| 1W***17 | Air Cleaner Group | 1 |
2w9270 Air Compressor Gp*R
| 2W***70 | Air Compressor Group | 1 |
1w6473 Compressor Group-Air*R
| 1W***73 | Air Compressor Group | 1 |
7c0903 Air Compressor Gp
| 7C***03 | Air Compressor Group; Compressor Group-Air | 1 |
2w2315 Compressor Group-Air
| 2W***15 | Air Compressor Group; Compressor Group-Air | 1 |
1w3793 Fastener Group-Exhaust Manifold
| 1W***93 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
1p9140 Lines Group-Air
| 1P***40 | Lines Group-Air | 1 |
7n4161 Lines Group-Air
| 7N***61 | Lines Group-Air | 1 |
8n4702 Lines Group-Air
| 8N***02 | Lines Group-Air | 1 |
2w2314 Lines Group-Air Compressor
| 2W***14 | Lines Group-Air Compressor; Lines Group-Air Compressor | 1 |
7w8411 Lines Gp-Air Compressor
| 7W***11 | Lines Group-Air Compressor; Lines Group-Air Compressor | 1 |
1w0558 Lines Gp-Turbocharger Oil
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
1w0558 Lines Group-Turbocharger Oil
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
2p6571 Manifold Gp-Exhaust
| 2P***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
2p6571 Manifold Group-Exhaust
| 2P***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
1p6427 Muffler Group
| 1P***27 | Muffler Group | 1 |
7n4651 Turbocharger Group*R
| 7N***51 | Turbocharger Group | 1 |
7n4650 Turbocharger Group
| 7N***50 | Turbocharger Group | 1 |
Basic Engine
1w2872 Balancer Group
| 1W***72 | Balancer Group; Balancer Group | 1 |
1p6820 Bolt Group-Engine Mounting
| 1B***31 | Nut-Rops Mounting Bracket To Fender Rear | 2 |
| 1P***20 | Bolt Group-Engine Mounting | 1 |
| 3B***68 | Bolt--Support To Frame Assembly--3 1/2 In. (89.0 mm); Bolt 3 1/2 In. (89.0 mm) Long Front Support To Frame | 2 |
1n4436 Camshaft Group-Single
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
7n1088 Cover Group-Cylinder Block
| 7N***88 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
2w0102 Cover Gp-Cylinder Block
| 2W***02 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
2p6530 Cover Group-Cylinder Head
| 2P***30 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
2p6529 Cover Group-Front Housing
| 2P***29 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
8n4446 Cover Group-Valve Mechanism
| 8N***46 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
4n7692 Crankshaft Assembly-Field Installation*R
| 4N***92 | Crankshaft As | 1 |
6n8080 Crankshaft Gp-Type 1
| 6N***80 | Crankshaft Group; Crankshaft Group | 1 |
6n8080 Crankshaft Gp-Type 2
| 6N***80 | Crankshaft Group; Crankshaft Group | 1 |
7n6552 Cylinder Block Assembly
| 7N***52 | Cylinder Block As | 1 |
1n3574 Block Group-Cylinder - Field Installation*R
| 1N***74 | Cylinder Block Group | 1 |
7n6553 Block Group-Cylinder
| 7N***53 | Cylinder Block Group; Cylinder Block Group | 1 |
7n8874 Head Group-Cylinder*R
| 7N***74 | Cylinder Head Group; Cylinder Head Group | 1 |
2p7831 Drive Group-Fan
| 2P***31 | Drive Group-Fan; Fan Drive Group | 1 |
2p6157 Extension Group-Oil Drain
| 2P***57 | Extension Group-Drain | 1 |
7n9534 Fastener Group-Cylinder Head
| 7N***34 | Fastener Group-Cylinder Head; Cylinder Head Fastener Group | 1 |
8n0872 Fastener Group-Front Housing
| 8N***72 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
2p6189 Fastener Group-Oil Pan
| 2P***89 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
7c0377 Flywheel Gp
| 7C***77 | Flywheel Group | 1 |
7s7877 Flywheel Gp
| 7S***77 | Flywheel Group; Flywheel Group | 1 |
1w5634 Gear Group-Front Timing
| 1W***34 | Gear Group-Front Timing; Front Gear Group--Timing | 1 |
8n0442 Housing Gp-Flywheel
| 8N***42 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
7c0342 Housing Gp-Flywheel
| 7C***42 | Housing Group-Flywheel | 1 |
8n0303 Housing Group-Front
| 8N***03 | Housing Group-Front; Front Housing Group | 1 |
2p8598 Hub Group-Crankshaft
| 2P***98 | Hub Group-Crankshaft; Crankshaft Hub Group | 1 |
6n8326 Lifting Gp-Engine
| 6N***26 | Lifting Group; Lifting Eye Gp-Engine | 1 |
2p6155 Pan Group-Oil
| 2P***55 | Pan Group-Oil; Oil Pan Group | 1 |
2w1177 Connecting Rod And Piston Group - 4 Required*R
| 2W***77 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
7n2887 Pulley Group-Crankshaft
| 7N***87 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
7n2881 Pulley Group-Fan
| 7N***81 | Pulley Group-Fan; Fan Pulley Group | 1 |
2p6226 Seal Gp-Crankshaft
| 2P***26 | Seal Group-Crankshaft; Seal Group-Crankshaft | 1 |
2p6224 Seal Group-Crankshaft
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
7n9595 Support Group-Engine
| 7N***95 | Support Group-Engine; Support Group-Engine | 1 |
7n9589 Trunnion Group
| 7N***89 | Trunnion Group-Engine | 1 |
7n8024 Valve Mechanism Gp
| 7N***24 | Valve Mechanism Group; Valve Mechanism Group | 1 |
7n8024 Valve Mechanism Gp-Type 1
| 7N***24 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cab, Gauges And Accessories
8v9096 Literature Compartment Group
| 8V***96 | Compartment Group-Literature | 1 |
7v7220 Door Group-Cab - L.H.
| 7V***20 | Door Group-Cab; (Lh) | 1 |
7v7190 Door Group-Cab - R.H.
| 7V***90 | Door Group-Cab; (Rh) | 1 |
8k7534 Extinguisher Group-Fire
| 8K***34 | Fire Extinguisher Group | 1 |
9c1603 Heater Gp-Cab
| 9C***03 | Heater Group-Cab | 1 |
3v1621 Heater Gp-Cab
| 3V***21 | Heater Group-Cab | 1 |
6w5035 Horn Group-Electric
| 6W***35 | Horn Group-Electric | 1 |
3v8840 Mirror Group-Rear View
| 3V***40 | Mirror Group-Rear View | 1 |
6w5018 Rops Group-Enclosed - Part 3 Of 3
| 6W***18 | Rops Group-Enclosed | 1 |
6w5018 Rops Group-Enclosed - Part 2 Of 3
| 6W***18 | Rops Group-Enclosed | 1 |
6w5018 Rops Group-Enclosed - Part 1 Of 3
| 6W***18 | Rops Group-Enclosed | 1 |
9c2654 Belt Gp-Seat
| 9C***54 | Seat Belt Group | 1 |
8y4034 Seat Belt Gp
| 8Y***34 | Seat Belt Group | 1 |
9v8787 Seat Gp
| 9V***87 | Seat Group | 1 |
6w5017 Seat Gp-Type 2
| 6W***17 | Seat Group | 1 |
6w5017 Seat Gp-Type 1
| 6W***17 | Seat Group | 1 |
9c1633 Starting Aid Gp-Ether
| 9C***33 | Starting Aid Group-Ether | 1 |
6w5026 Support Group-Hood
| 6W***26 | Support Group-Hood | 1 |
6w5027 Suppression Gp-Fire
| 6W***27 | Suppression Group-Fire | 1 |
Chassis
6w5044 Arm Group-Lift
| 6W***44 | Arm Group-Lift | 1 |
6w5036 Bumper Gp-Part 2 Of 2
| 6W***36 | Bumper Group | 1 |
6w5036 Bumper Gp-Part 1 Of 2
| 6W***36 | Bumper Group | 1 |
6w5022 Floorplate Group
| 6W***22 | Floorplate Group | 1 |
7v0840 Frame Group - Rear
| 7V***40 | Frame Group-Engine End | 1 |
6w5015 Frame Gp-Front
| 6W***15 | Frame Group-Front | 1 |
6w5025 Gauge Gp
| 6W***25 | Gauge Group | 1 |
9c1816 Guard Gp-Bottom-Front
| 9C***16 | Guard Group-Bottom | 1 |
6w5016 Guard Gp-Bottom-Rear
| 6W***16 | Guard Group-Bottom | 1 |
9c1979 Guard Gp-Brake
| 9C***79 | Guard Group-Brake | 1 |
8v6577 Guard Group-Brake
| 8V***77 | Guard Group-Brake | 1 |
9c1353 Guard Group-Exhaust
| 9C***53 | Guard Group-Exhaust | 1 |
6w5024 Guard Gp-Platform-Part 2 Of 2
| 6W***24 | Guard Group-Platform | 1 |
6w5024 Guard Gp-Platform-Part 1 Of 2
| 6W***24 | Guard Group-Platform | 1 |
6w5019 Guard Group-Radiator
| 6W***19 | Guard Group-Radiator | 1 |
7k4665 Hitch Gp-Oscillating
| 7K***65 | Hitch Group-Oscillating | 1 |
6w5009 Hood And Guard Group
| 6W***09 | Hood & Guard Group | 1 |
4v9241 Link Group-Steering Frame Lock
| 4V***41 | Link Group-Frame Lock | 1 |
6w5046 Mounting Group-Head
| 6W***46 | Mounting Group-Head | 1 |
7v0836 Mounting Group-Radiator
| 7V***36 | Mounting Group-Radiator | 1 |
6w5023 Platform Group-Operator
| 6W***23 | Platform Group-Operator | 1 |
5v1552 Step Group
| 5V***52 | Step Group | 1 |
6w5043 Support Group-Lift Arm
| 6W***43 | Support Group-Lift Arm | 1 |
7k9626 Support Group - Transmission
| 7K***26 | Support Group-Transmission | 1 |
6w5010 Sweep Group
| 6W***10 | Sweep Group | 1 |
Cooling System
8n4457 Base Gp-Engine Oil Filter
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
2w2660 Cooler Group-Filter Base & Engine Oil
| 2W***60 | Cooler Group-Filter Base & Eng Oil | 1 |
2w5636 Cooler Group-Filter Base & Engine Oil
| 2W***36 | Cooler Group-Filter Base & Eng Oil; Filter Base & Engine Oil Cooler Group | 1 |
7c1715 Cooler Gp-Hydraulic Oil
| 3B***15 | Pin,Cotter Governor And Decelerator Control | 2 |
| 5G***64 | Cooler As-Oil | 1 |
| 5M***62 | Bolt; (3/8-16x0.75-In) | 4 |
2w6780 Cooler Group-Transmission Oil
| 2W***80 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
8n4370 Fan Group-Blower
| 8N***70 | Fan Group-Blower | 1 |
8n5607 Fan Gp-Reversible
| 8N***07 | Fan Group-Reversible | 1 |
4n3586 Heater Gp-Jacket Water
| 4N***86 | Heater Group-Jacket Water; (120v) | 1 |
2p8168 Regulator & Housing Group
| 2P***68 | Housing & Regulator Group | 1 |
6w9992 Lines Group-Oil Cooler - Part 1 Of 2
| 6W***92 | Lines Group-Engine Oil Cooler | 1 |
6w9992 Lines Group-Oil Cooler - Part 2 Of 2
| 6W***92 | Lines Group-Engine Oil Cooler | 1 |
8k5366 Lines Group-Torque Converter Cooler
| 8K***66 | Lines Group-Torque Conv Cooler | 1 |
8k5366 Lines Gp-Torque Converter Cooler
| 8K***66 | Lines Group-Torque Conv Cooler | 1 |
8n4112 Lines Gp-Water
| 8N***12 | Lines Group-Water; -Bypass Relief | 1 |
2w6779 Lines Group-Water
| 2W***79 | Lines Group-Water | 1 |
2w8002 Pump Gp-Water*R
| 2W***02 | Pump Group-Water; Water Pump (Assembly) | 1 |
7n5908 Pump Group-Water
| 7N***08 | Pump Group-Water | 1 |
7n1493 Radiator Group
| 7N***93 | Radiator Group | 1 |
Engine Arrangement
2w3989 Engine Ar-Part 2 Of 2
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
| 1W***31 | Pump Group-Fuel Prm & Prim Filter; Fuel Priming Pump And Primary Filter Group | 1 |
| 1W***33 | Lines Group; Lines Gp-Fuel Drain | 1 |
2w3989 Engine Ar-Part 1 Of 2
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***72 | Balancer Group; Balancer Group | 1 |
Fuel System And Governor
2w0262 Camshaft Assembly
| 2W***62 | Camshaft As | 1 |
6w5029 Control Group-Governor
| 6W***29 | Control Group-Governor | 1 |
1p2299 Filter Assembly-Fuel
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
1w9532 Filter Group-Secondary Fuel
| 1W***32 | Filter Group-Fuel; Filter Gp-Secondary Fuel | 1 |
2w2410 Governor Group-Part 2 Of 3
| 2W***10 | Governor Group | 1 |
2w2410 Governor Group-Part 1 Of 3
| 2W***10 | Governor Group | 1 |
2w2410 Governor Group-Part 3 Of 3
| 2W***10 | Governor Group | 1 |
6w5045 Guard Group-Fuel Tank
| 6W***45 | Guard Group-Fuel Tank | 1 |
1w9533 Lines Group-Drain
| 1W***33 | Lines Group; Lines Gp-Fuel Drain | 1 |
6w5033 Lines Group-Fuel
| 6W***33 | Lines Group-Fuel | 1 |
8n8170 Lines Gp-Fuel Injection
| 8N***70 | Lines Group-Fuel Injection | 1 |
4p9960 Lines Gp-Fuel Injection
| 4P***60 | Lines Group-Fuel Injection | 1 |
4p9950 Lines Gp-Fuel Injection
| 4P***50 | Lines Group-Fuel Injection | 1 |
8n2772 Lines Group-Fuel Injection
| 8N***72 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7c5170 Lines Gp-Fuel Injection
| 7C***70 | Lines Group-Fuel Injection | 1 |
7c5160 Lines Gp-Fuel Injection
| 7C***60 | Lines Group-Fuel Injection | 1 |
1w6539 Pump Group-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
2w0263 Pump Group-Fuel Injection
| 2W***63 | Pump Group-Fuel Injection | 1 |
1w3790 Pump Gp-Fuel Priming & Primary Filter
| 1W***90 | Pump Group-Fuel Prime & Prim Filter; Fuel Priming Pump & Primary Filter Group | 1 |
1w3791 Pump Group-Fuel Priming
| 1W***91 | Pump Group-Fuel Priming | 1 |
1w9531 Pump Gp-Fuel Priming & Primary Filter
| 1W***31 | Pump Group-Fuel Prm & Prim Filter; Fuel Priming Pump And Primary Filter Group | 1 |
1w1695 Pump Gp-Fuel Transfer*R
| 1W***95 | Pump Group-Fuel Transfer | 1 |
2w4160 Pump Group-Fuel Transfer And Mounting
| 2W***60 | Pump Group-Fuel Transfer & Mtg; Fuel Transfer Pump And Mounting Group | 1 |
2w0267 Governor & Fuel Injection Pump Gp
| 2W***67 | Pump Group-Gov & Fuel Inj; Pump Group-Governor & Fuel Injection | 1 |
6w5014 Tank Group-Fuel
| 6W***14 | Tank Group-Fuel | 1 |
8n7276 Control Group-Torque
| 8N***76 | Torque Control Group | 1 |
Hydraulic System
3g2718 Cartridge Gp-72 L/Min (19 Gpm)-Counterclockwise*R
| 3G***18 | Cartridge Group | 1 |
3g7658 Cartridge Gp-53 L/Min (14gpm)-Rear*R
| 3G***58 | Cartridge Group-Rear | 1 |
9c1329 Control Group-Hydraulic
| 9C***29 | Control Group-Hydraulic Hand | 1 |
6w5031 Control Group-Implement Valve
| 6W***31 | Control Group-Implement | 1 |
9t1773 Cylinder Gp-Lift (Change 00-02)
| 9T***73 | Cylinder Group-Lift | 1 |
9t1772 Cylinder Gp-Tilt-R.H.(Change 00-01)
| 9T***72 | Cylinder Group-Tilt | 1 |
9t1777 Cylinder Gp-Tilt-L.H.(Change 00-01)
| 9T***77 | Cylinder Group-Tilt | 1 |
6w7836 Fastener Group-Hydraulic Tank
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 8 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 8 |
| 6W***36 | Fastener Group-Hydraulic Tank | 1 |
9c1717 Lines Gp-Shear Hydraulic
| 9C***17 | Lines Group-Hydraulic | 1 |
6w5041 Lines Group-Hydraulic-Lift & Tilt
| 6W***41 | Lines Group-Hydraulic | 1 |
6w5041 Lines Gp-Hydraulic-Lift & Tilt
| 6W***41 | Lines Group-Hydraulic | 1 |
6w5039 Lines Group-Hydraulic Implement
| 6W***39 | Lines Group-Hydraulic Implement | 1 |
9c1716 Lines Gp-Shear Hydraulic
| 9C***16 | Lines Group-Hydraulic Oil | 1 |
6w5038 Lines Group-Hydraulic Steering-Part 2 Of 2
| 6W***38 | Lines Group-Hydraulic Steering | 1 |
6w5038 Lines Group-Hydraulic Steering-Part 1 Of 2
| 6W***38 | Lines Group-Hydraulic Steering | 1 |
6w5037 Lines Group-Hydraulic Suction
| 6W***37 | Lines Group-Hydraulic Suction | 1 |
6w9481 Lines Gp-Supplemental Steering-Part 2 Of 2
| 6W***81 | Lines Group-Supplemental Steering | 1 |
6w9481 Lines Gp-Supplemental Steering-Part 1 Of 2
| 6W***81 | Lines Group-Supplemental Steering | 1 |
6w5047 Mounting Group-Hydraulic Pump
| 1H***27 | Seal 10.1 cm(3.984 In.) I.D. | 1 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 2 |
| 6W***47 | Mounting Group-Hydraulic Pump | 1 |
6w5048 Mounting Group-Implement Valve
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 4 |
| 1D***19 | Nut-Retainer To Fan Bracket Assembly | 4 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 4 |
6w5049 Mounting Group-Shear Valve
| 0S***73 | Bolt (102mm Long); (1/2-13x4-In) | 2 |
| 1D***19 | Nut-Retainer To Fan Bracket Assembly | 3 |
| 2B***47 | Bolt (1/2" X 2 1/4") Rops Mounting Bracket To Cover Assembly | 1 |
6w5050 Mounting Group-Steering Valve
| 1U***95 | Adapter | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 1 |
| 4B***20 | Bolt 4.50 In. (11.43 mm) Long | 2 |
8v9145 Mounting Gp-Valve
| 8V***45 | Mounting Group-Valve; Valve Mounting Group | 1 |
9t1763 Pump Group-Vane
| 9T***63 | Pump Group-Vane | 1 |
9t1769 Tank And Filter Group-Hydraulic - Part 1 Of 2
| 9T***69 | Tank & Filter Group | 1 |
9t1769 Tank And Filter Group-Hydraulic - Part 2 Of 2
| 9T***69 | Tank & Filter Group | 1 |
8j9471 Valve Group-Lift Cylinder Make-Up
| 8J***71 | Valve Group-Check; -Lift Cylinder Circuit | 1 |
9t3348 Valve Group-Implement Control
| 9T***48 | Valve Group-Control | 1 |
9t1770 Valve Group-Hydraulic Control - Shear
| 9T***70 | Valve Group-Hydraulic Control | 1 |
9t3349 Valve Group-Hydraulic Control
| 9T***49 | Valve Group-Hydraulic Control | 1 |
9t1764 Valve Group-Bank- Lift And Tilt Control
| 9T***64 | Valve Group-Lift & Tilt Control | 1 |
9t4508 Valve Group-Relief - Pilot Operated
| 9T***08 | Valve Group-Relief | 1 |
9t3347 Valve Group-Relief - Pilot Operated
| 9T***47 | Valve Group-Relief | 1 |
9t3345 Valve Group-Relief - Pilot Operated
| 9T***45 | Valve Group-Relief | 1 |
Lubrication System
1p4244 Breather Gp-Crankcase
| 1P***44 | Breather Group | 1 |
2w0885 Filler Gp-Oil
| 2W***85 | Filler Group-Oil; Oil Filler Group-Bet. 24 & 25 | 1 |
2p6855 Filler Gp-Oil
| 2P***55 | Filler Group-Oil | 1 |
8n7254 Fumes Disposal Gp
| 8N***54 | Fumes Disposal Group | 1 |
2p6491 Gauge Gp-Oil Level
| 2P***91 | Gauge Group-Oil Level (Dipstick) | 1 |
2p6512 Lines Group-Oil
| 2P***12 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
7c9227 Protection Gp-Vandalism
| 7C***27 | Protection Group-Vandalism; (Oil Level Gauge) | 1 |
6n2642 Pump Gp-Engine
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 1P***46 | Washer-Hard; (10.2x35x6-mm Thk) | 1 |
| 4P***20 | Pump Group-Engine Oil; Pump Group-Engine Oil | 1 |
2p1784 Pump Group-Oil
| 2P***84 | Pump Group-Engine Oil; Engine Oil Pump Group | 1 |
6i1346 Pump Gp-Engine Oil
| 6I***46 | Pump Group-Engine Oil | 1 |
4p4020 Pump Gp-Engine Oil-Two Section Gear
| 4P***20 | Pump Group-Engine Oil; Pump Group-Engine Oil | 1 |
4w2448 Pump Group-Engine Oil*R
| 4W***48 | Pump Group-Engine Oil; Pump Gp-Engine Oil Gear | 1 |
Power Train-Power Transmission Unit
9c1980 Axle Ar-Flotation-Heavy Duty
| 6W***65 | Axle Ar-Front | 1 |
| 6W***15 | Guard As-Center | 1 |
| 6W***34 | Plate | 2 |
6w9470 Axle Ar-Flotation
| 0S***56 | Bolt 4 1/4 In. (108 mm) --Front Support Assembly To Frame | 4 |
| 3P***83 | Spacer; (0.908x1.5x1-In Thk) | 4 |
| 5P***48 | Washer--Bracket To L.H. Support Rail | 4 |
6w2565 Axle Ar-Front-Flotation
| 0L***78 | Bolt,Machine Governor And Decelerator Control | 16 |
| 1D***09 | Bolt Canopy Assembly To Mounting Brackets; Bolt-Canopy Assembly To Mounting Brackets | 16 |
| 3P***33 | Spacer; (0.781x1.5x1-In Thk) | 16 |
6w9663 Axle Ar-Rear-Flotation
| 5V***55 | Brake Group-Service | 2 |
| 6W***96 | Axle Group-Fixed | 1 |
| 6W***15 | Wheel & Final Drive Group | 2 |
6w2296 Axle Gp-Fixed
| 6W***96 | Axle Group-Fixed | 1 |
6w9566 Axle Gp-Fixed-2 Required
| 6W***66 | Axle Group-Fixed | 1 |
4v7060 Brake Gp-Hydraulic Caliper Service
| 4V***60 | Brake Group-Hydraulic Caliper Service | 1 |
8r0843 Brake Gp-Hydraulic Caliper Service
| 8R***43 | Brake Group-Hydraulic Caliper Service | 1 |
5v5921 Brake Gp-Service
| 5V***21 | Brake Group-Service | 1 |
9w0743 Parts And Case Group
| 9W***43 | Case & Parts Group; Parts And Case Group | 1 |
6w5028 Control Gp-Transmission-Part 1 Of 2
| 6W***28 | Control Group-Transmission | 1 |
6w5028 Control Gp-Transmission-Part 2 Of 2
| 6W***28 | Control Group-Transmission | 1 |
9w0746 Control Group-Transmission Hydraulic
| 9W***46 | Control Group-Transmission Hydraulic; Control Group-Transmission Hydraulic | 1 |
6w2570 Differential & Bevel Gear Gp
| 6W***70 | Differential & Bevel Gear Group | 1 |
6w9613 Differential & Bevel Gear Gp
| 6W***13 | Differential & Bevel Gear Group | 1 |
6w9614 Differential & Bevel Gear Gp
| 6W***14 | Differential & Bevel Gear Group | 1 |
6w2571 Differential & Bevel Gear Gp-Front
| 6W***71 | Differential & Bevel Gear Group | 1 |
9v5728 Differential Gp
| 9V***28 | Differential Group; Differential Group | 1 |
8v2956 Differential Gp
| 8V***56 | Differential Group-Nospin | 1 |
7v0851 Drive Shaft Gp
| 7V***51 | Drive Shaft Group | 1 |
6w5008 Filler Group-Transmission Oil
| 6W***08 | Filler Group-Transmission Oil | 1 |
2s6457 Filter Group-Transmission
| 2S***57 | Filter Group-Transmission; (Transmission) | 1 |
8p8277 Planetary Gp-Transmission-Part 2 Of 2
| 8P***77 | Planetary Group; Transmission Group-Planetary | 1 |
8p8277 Planetary Gp-Transmission-Part 1 Of 2
| 8P***77 | Planetary Group; Transmission Group-Planetary | 1 |
3p7958 Pump Group-Transmission
| 3P***58 | Pump Group-Gear; Pump Group-Transmission | 1 |
8v0782 Rim Gp-Demountable-4 Required
| 8V***82 | Rim Group-Demountable | 1 |
6w9747 Rim Group-Demountable - 4 Required
| 6W***47 | Rim Group-Demountable | 1 |
6w9748 Rim Group-Demountable - 4 Required
| 6W***48 | Rim Group-Demountable | 1 |
8v0782 Rim Group-Demountable-4 Required
| 8V***82 | Rim Group-Demountable | 1 |
6w5007 Rim Gp-Demountable-4 Required
| 6W***07 | Rim Group-Demountable | 1 |
6w3959 Drive Shaft Gp
| 6W***59 | Shaft Group-Drive; Drive Shaft Gp | 1 |
6w3958 Drive Shaft Gp
| 6W***58 | Shaft Group-Drive; Drive Shaft Group | 1 |
9c0401 Slip Joint Gp
| 9C***01 | Slip Joint Group | 1 |
9c6884 Slip Joint Gp
| 9C***84 | Slip Joint Group | 1 |
6w7924 Slip Joint Gp
| 6W***24 | Slip Joint Group | 1 |
8r6763 Slip Joint Gp
| 8R***63 | Slip Joint Group | 1 |
9c2243 Rim & Tire Gp-24.5" X 32"
| 9C***55 | Rim As | 1 |
| 9C***43 | Tire & Rim Group | 1 |
| 9K***24 | Cap-Pipe | 1 |
1t1705 Torque Converter Gp
| 1T***05 | Torque Converter Group | 1 |
9w0745 Converter Gp-Torque-With Housing
| 9W***45 | Torque Converter Group; Converter Group-Torque | 1 |
7g8862 Case & Transfer Gear Gp
| 7G***62 | Transfer Case & Gear Group | 1 |
7g8862 Transfer Case & Gear Gp
| 7G***62 | Transfer Case & Gear Group | 1 |
7t8752 Transmission Arrangement
| 2S***57 | Filter Group-Transmission; (Transmission) | 1 |
| 3P***58 | Pump Group-Gear; Pump Group-Transmission | 1 |
| 7G***62 | Transfer Case & Gear Group | 1 |
9w0837 Valve Group-Hydraulic Pressure Control
| 9W***37 | Valve Group-Hydraulic Press Cont | 1 |
3p4490 Valve Group-Pressure Control
| 3P***90 | Valve Group-Hydraulic Press Cont | 1 |
9p4469 Valve Group-Selector
| 9P***69 | Valve Group-Selector | 1 |
6w2515 Wheel & Final Drive Gp
| 6W***15 | Wheel & Final Drive Group | 1 |
6w9616 Wheel Gp-Final Drive-Rear-2 Required
| 6W***16 | Wheel & Final Drive Group | 1 |
9c6823 Wheel Gp-Final Drive & Brake-2 Required
| 9C***23 | Wheel Group-Final Drive & Brake | 1 |
5v5922 Wheel Gp-Final Drive & Brake-Front-2 Required
| 5V***22 | Wheel Group-Final Drive & Brake | 1 |
Service Equipment And Supplies
Gasket Kits
| 5P***68 | Kit-Gasket; (Single Cylinder Liner)(Single Cylinder Liner) | 0 |
| 5P***41 | Transmission Filter; Vehicle Serial No. 26w443 To 26w492-Up, 27w1090 To 27w1330-Up And Transmission Serial No. 1pa1-Up | 0 |
| 5P***26 | Planetary Transmission | 0 |
Name Plates And Transfers
| 1P***34 | Film-518; On Each Side Of Radiator Guard | 2 |
| 2P***31 | Film--Cat On Each Side Of Radiator Guard; Film--Cat On Each Side--Above Drum Shaft | 2 |
| 2P***13 | Transfer Group | 1 |
Starting And Electrical System
3t4586 Starting Motor Gp-Electric
| 3T***86 | Starting Motor Group-Electric | 1 |
| 8C***50 | Starting Motor Group-Electric | 1 |
| 8N***45 | Starting Motor Group-Electric; Electric Starting Motor Group--24 Volt | 1 |
1w3851 Starting Motor Gp-Electric
| 1W***51 | Starting Motor Group-Electric | 1 |
1w5635 Starting Motor Gp-Electric
| 1W***35 | Starting Motor Group-Electric; Starting Motor Gp-Electric-24 Volt | 1 |
3t6305 Starting Motor Gp-Electric-24 Volt
| 3T***05 | Starting Motor Group-Electric; Starting Motor Group (Robert Bosch) | 1 |
3t4581 Starting Motor Gp-Electric-Part 1 Of 2
| 3T***81 | Starting Motor Group-Electric | 1 |
3t4583 Starting Motor Gp-Electric
| 3T***81 | Starting Motor Group-Electric | 1 |
| 3T***82 | Starting Motor Group-Electric | 1 |
| 3T***83 | Starting Motor Group-Electric | 1 |
8c3650 Starting Motor Gp-Electric-24 Volt
| 8C***50 | Starting Motor Group-Electric | 1 |
3t6305 Starting Motor Gp-Electric
| 3T***05 | Starting Motor Group-Electric; Starting Motor Group (Robert Bosch) | 1 |
9x4447 Starting Motor Gp-Electric-24 Volt
| 9X***47 | Starting Motor Group-Electric; Electric Starting Motor Group (Nippondenso) | 1 |
3t4582 Starting Motor Gp-Electric-24 Volt-Prestolite
| 3T***82 | Starting Motor Group-Electric | 1 |
3t4581 Starting Motor Gp-Electric-Part 2 Of 2
| 3T***81 | Starting Motor Group-Electric | 1 |
4n3181 Starting Motor Gp-Electric-24 Volt*R
| 3T***05 | Starting Motor Group-Electric; Starting Motor Group (Robert Bosch) | 1 |
| 4N***81 | Starting Motor Group-Electric | 1 |
| 8C***51 | Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy | 1 |
8n2145 Starting Motor Gp-Electric-24 Volt
| 8N***45 | Starting Motor Group-Electric; Electric Starting Motor Group--24 Volt | 1 |
8c3651 Starting Motor Gp-Electric-24 Volt
| 8C***51 | Starting Motor Group-Electric; Starting Motor Gp-Electric-Delco-Remy | 1 |
7n9720 Alternator Group-24 Volt, 35 Ampere
| 7N***20 | Alternator Group; Alternator Group (Robert Bosch) | 1 |
6n9294 Alternator Group-24 Volt, 35 Ampere*R
| 3T***52 | Alternator Group-Charging | 1 |
| 6N***94 | Alternator Group; (24-Volt, 35-Ampere) | 1 |
| 7N***20 | Alternator Group; Alternator Group (Robert Bosch) | 1 |
9g4574 Alternator Group-24 Volt, 35 Ampere-Nippondenso
| 9G***74 | Alternator Group-Charging; Alternator Group (Nippondenso) | 1 |
3t6352 Alternator Group-24 Volt, 35 Ampere-Delco-Remy-Part 1 Of 2
| 3T***52 | Alternator Group-Charging | 1 |
6n5468 Alternator Group-24 Volt, 35 Ampere
| 6N***68 | Alternator Group-Charging | 1 |
3t6352 Alternator Group-24 Volt, 35 Ampere-Delco-Remy-Part 2 Of 2
| 3T***52 | Alternator Group-Charging | 1 |
6w5032 Battery & Wiring Gp-Part 3 Of 3
| 6W***32 | Battery & Wiring Group | 1 |
6w5032 Battery And Wiring Group-Part 1 Of 3
| 6W***32 | Battery & Wiring Group | 1 |
6w5032 Battery And Wiring Group-Part 2 Of 3
| 6W***32 | Battery & Wiring Group | 1 |
6w5032 Battery & Wiring Gp-Part 2 Of 3
| 6W***32 | Battery & Wiring Group | 1 |
6w5032 Battery & Wiring Gp-Part 1 Of 3
| 6W***32 | Battery & Wiring Group | 1 |
6w6317 Harness As
| 6W***17 | Harness As | 1 |
9m1305 Lamp Assembly-Dash - 24 Volt
| 9M***05 | Lamp Group | 1 |
3t2127 Lamp Gp-Head
| 3T***27 | Lamp Group | 1 |
6n7989 Lamp Gp
| 6N***89 | Lamp Group-Flood; -Ladder Access | 1 |
3t2128 Lamp Gp-Head
| 3T***28 | Lamp Group-Head | 1 |
9c2697 Lighting Gp-4 Lamp
| 9C***97 | Lighting Group | 1 |
6w9482 Lighting Gp-Warning
| 6W***82 | Lighting Group-Warning | 1 |
3t8635 Solenoid As-24 Volt
| 3T***35 | Solenoid As | 1 |
7t8854 Solenoid As
| 7T***54 | Solenoid As-Starting Motor | 1 |
7n0718 Switch Assembly-Disconnect
| 7N***18 | Switch As-Disconnect; -Battery-Ground Level | 1 |
3k1650 Switch Assembly-Light
| 3K***50 | Switch As-Light; -Floodlights | 1 |
7n4160 Switch Group - Heat-Start
| 7N***60 | Switch Group | 1 |
6w5011 Warning Group-Backup
| 6W***11 | Warning Group-Back-Up | 1 |
6w5012 Warning Group-Operator
| 6W***12 | Warning Group-Operator | 1 |
Steering And Braking System
8v9246 Actuator Gp-Brake
| 8V***46 | Actuator Group-Parking Brake | 1 |
6w5034 Air Dryer Gp
| 6W***34 | Air Dryer Group | 1 |
1v2278 Brake Group-Hydraulic Caliper Service
| 1V***78 | Brake Group-Hydraulic Caliper Service | 1 |
8r0808 Brake Gp-Hyd Caliper Service
| 8R***08 | Brake Group-Hydraulic Caliper Service | 1 |
5v4271 Brake Gp-Hydraulic Caliper Service
| 5V***71 | Brake Group-Hydraulic Caliper Service | 1 |
8r0841 Brake Gp-Hydraulic Caliper Service
| 8R***41 | Brake Group-Hydraulic Caliper Service | 1 |
7v9487 Brake Group-Mechanical Caliper Parking
| 7V***87 | Brake Group-Mech Caliper Parking; Mechanical Caliper Parking Brake Group | 1 |
9c9221 Brake Gp-Service
| 9C***21 | Brake Group-Service | 1 |
5v4355 Brake Gp-Service
| 5V***55 | Brake Group-Service | 1 |
8v0718 Brake Group-Service And Parking
| 8V***18 | Brake Group-Service & Parking | 1 |
8v0718 Brake Gp-Parking
| 8V***18 | Brake Group-Service & Parking | 1 |
6w5020 Control Gp-Parking Brake
| 6W***20 | Control Group-Parking Brake | 1 |
6w5021 Control Gp-Service Brake-Part 2 Of 5
| 6W***21 | Control Group-Service Brake | 1 |
6w5021 Control Gp-Service Brake-Part 5 Of 5
| 6W***21 | Control Group-Service Brake | 1 |
6w5021 Control Gp-Service Brake-Part 1 Of 5
| 6W***21 | Control Group-Service Brake | 1 |
6w5021 Control Gp-Service Brake-Part 3 Of 5
| 6W***21 | Control Group-Service Brake | 1 |
6w5021 Control Gp-Service Brake-Part 4 Of 5
| 6W***21 | Control Group-Service Brake | 1 |
6w5013 Control Gp-Steering
| 6W***13 | Control Group-Steering | 1 |
9k5976 Cylinder Group-Air
| 9K***76 | Cylinder Group-Air | 1 |
9k1528 Cylinder Group-Air/Hydraulic
| 9K***28 | Cylinder Group-Air Over Hydraulic | 1 |
4v5414 Cylinder Group-Air Over Hydraulic - 2 Required
| 4V***14 | Cylinder Group-Air Over Hydraulic | 1 |
7j3349 Cylinder Group-Steering - R.H. (Chg 04)
| 7J***49 | Cylinder Group-Steering; -Rh | 1 |
7j3350 Cylinder Group-Steering - L.H. (Chg 04)
| 7J***50 | Cylinder Group-Steering; -Lh | 1 |
5v6433 Drive Gp-Auxiliary Steering Pump
| 5V***33 | Drive Group-Pump; Drive Gp-Auxiliary Steering Pump | 1 |
6w9615 Pump Gp-Drive
| 6W***15 | Drive Group-Pump; Pump Gp-Drive | 1 |
1u2781 Pump Gp-Gear
| 1U***81 | Pump Group-Gear | 1 |
7v4265 Pump Gp-Gear 1
| 7V***65 | Pump Group-Gear | 1 |
6w3957 Drive Shaft Gp
| 6W***57 | Shaft Group-Drive; Drive Shaft Group | 1 |
6w7927 Drive Shaft Gp
| 6W***27 | Shaft Group-Drive; Drive Shaft Group | 1 |
6w9440 Steering Ar-Supplemental
| 6W***57 | Shaft Group-Drive; Drive Shaft Group | 1 |
| 6W***40 | Steering Ar-Supplemental | 1 |
| 6W***81 | Lines Group-Supplemental Steering | 1 |
6w9480 Steering Ar-Supplemental
| 5V***33 | Drive Group-Pump; Drive Gp-Auxiliary Steering Pump | 1 |
| 6W***27 | Shaft Group-Drive; Drive Shaft Group | 1 |
| 6W***80 | Steering Ar-Supplemental | 1 |
4d0487 Valve Assembly-Check
| 4D***87 | Valve As-Check; -Air Supply-Primary Air Tank-Service Brake Control | 1 |
9d0338 Valve Group-Check
| 9D***38 | Valve Group; -Air Pressure Brake | 1 |
8j8504 Valve Gp-Diverter
| 8J***04 | Valve Group; Diverter Valve Group | 1 |
8j8503 Valve Gp
| 8J***03 | Valve Group | 1 |
1u1614 Valve Group-Steering
| 1U***14 | Valve Group-Steering | 1 |
1u1615 Valve Group
| 1U***15 | Valve Group-Steering | 1 |
FB518 serial number reference
The PIN plate is a riveted metal tag mounted on the machine frame, commonly near the articulation hitch area or lower frame rail, with model/serial data also stamped into the frame itself. Read the first three characters as the serial prefix, which ties the unit to a specific model and production run; the digits that follow are the sequence number within that run. If your plate shows a prefix other than 8ZC, treat it as unconfirmed for FB518 and verify with a Cat dealer before ordering parts.
| Prefix | Identifies | Notes |
|---|---|---|
| 8ZC | FB518 Feller Buncher (wheel-type skidder chassis reversed, felling head fitted) | Serial range 8ZC00001-UP, production dated to 1986. This is the only prefix tied specifically to the FB518 in Cat parts-catalog and service-manual listings. FB518 is built off the 518 wheel-type skidder chassis, turned around and fitted with a felling head; no source independently documents an FB518-specific engine spec apart from the base 518 skidder line, so confirm engine fitment with your dealer using the full PIN. |
Frequently asked questions
What engine powers the Caterpillar FB518?
The FB518 runs a Cat 3304 turbocharged 4-cylinder diesel, mechanically injected, rated around 89 kW (120 hp). Some configuration listings show 97 kW (130 hp) -- output varies by configuration and production run. It predates electronic engine controls, so there's no ECM or fault-code diagnostics on this machine.
What is the FB518's operating weight?
FB518-specific operating weight is not separately published. The shared 518 wheel-skidder chassis it's built on runs approximately 9,698 kg (21,380-22,000 lb), but the felling-head conversion -- reversed cab, felling head in place of the grapple or arch, and often different flotation tires -- shifts that figure. Verify actual weight against the specific unit's configuration.
What replaced the Caterpillar FB518?
No documented model directly succeeded the FB518 by name. It was a felling-head conversion of the 518/518-II skidder chassis rather than a standalone factory model line, and Caterpillar's later purpose-built feller-buncher and harvester machines are a separate product line, not a confirmed continuation of this conversion.
What FB518 owners discuss
What do owners say about the powershift transmission on the FB518's skidder chassis?
No FB518-specific transmission threads turned up, so this reflects the shared 518/518-II skidder platform the FB518 is built on. The powershift transmission is generally described as durable when the oil stays clean, but a recurring complaint is rough shifting progressing to a no-pull condition. The trigger called out most often is water-contaminated fluid - milky or aerated transmission oil leads to clutch pack slippage, usually noticed first in low range. Before condemning a converter or clutch pack, mechanics check the transmission filter for debris and verify pressure at the filter, which should read around 400 psi (2760 kPa) warm.
Since the FB518 is a wheel-type machine, where does it actually wear - is there an 'undercarriage' issue like on tracked bunchers?
There's no track undercarriage to wear on this chassis - wear shows up instead at the tires, axle seals, and final drives. Tire tread condition is highly duty-cycle dependent (used listings for this chassis range from roughly 20% to 90% remaining tread), so treat it as a negotiating point rather than a fixed spec. Final drives and axles run on final-drive/axle-rated gear oil; bearing and gear wear accelerates when that oil isn't changed on schedule or gets diluted by water entering through worn axle seals. On a felling-head conversion, front-end loading runs heavier than a stock skidder because the head sits over the front, so front final drive oil condition and axle seal weep are worth extra attention on this configuration specifically.
What engine quirks show up on the Cat 3304 turbocharged engine used in the FB518?
The 3304 in this application is a mechanically injected engine, and the recurring complaints center on the fuel system rather than the block itself. Injection pump timing drifting off spec is repeatedly cited as a cause of low power and heavy smoke - even a small timing error, on the order of a quarter of the timing-hole tolerance, is enough to produce a noticeable power and smoke complaint. The governor control rack sticking is a known quirk on this pump and governor combination - it can stick in the no-fuel position (engine won't respond) or, less commonly, at full fuel, which is a runaway condition. Turbo boost complaints on this engine are usually traced back to fuel delivery or exhaust restriction rather than a failed turbocharger. A stuck-at-full-fuel governor rack is a runaway/shutdown safety issue - have your dealer verify governor and rack operation before returning a machine like this to service.
Are there known electrical or gauge/sensor problems on this generation of Cat skidder chassis?
Reports of dash gauge and warning-light dropouts on this chassis generation point to connector and ground faults rather than sensor failure - loose or corroded connectors behind the dash panel and poor grounding at the instrument cluster are the common culprits when multiple gauges lose power together. This is a mechanical, pre-electronic-controls engine, so there's no ECM fault-code path for diagnosis - troubleshooting is wire-by-wire with a meter, checking fuses, connectors, and ground points in that order. If a gauge dropout also takes out a safety-relevant warning circuit (like low engine oil pressure), have your dealer verify the wiring before putting the machine back to work.
What hydraulic/winch behaviors come up in troubleshooting discussions for this chassis?
Winch spool-out and freespool problems are discussed regularly on this platform, relevant to any FB518 unit still carrying a winch (many felling-head conversions remove the winch entirely to mount the head). A winch that spools in normally but won't spool out, or won't freespool, is usually traced to the hydraulic control valve being installed backward or with crossed lines after service, or to clutch tolerances that are no longer clean enough for the winch to freespool properly. On Gearmatic-style winches, seal weep from the clutch-actuation passage after a machine has sat idle for an extended period is called out as a common nuisance leak rather than a structural failure.
What safety-critical issue shows up with the brakes on this skidder chassis?
On 518C-era machines with air-actuated brakes acting over hydraulic pistons, seal failure inside the axle housing has been reported as sudden - failing within a day after years of reliable service - rather than as a gradual wear pattern. The cause pointed to is an oversized or out-of-spec seal groove rather than normal seal aging. Because this is a braking system, have your dealer verify groove dimensions against seal specification and fully bleed and test the circuit before returning the machine to work.
What should a buyer check when looking at a used FB518?
Standalone FB518 listings are rare, so buyers end up applying the standard 518/518-II skidder checklist plus a pass on the felling-head conversion itself. On the base machine: check engine oil pressure (expect roughly 50 psi/345 kPa warm, no more than about 90 psi/620 kPa - an abnormally high reading points to a stuck oil pump relief valve), look for blowby or excess crankcase pressure, pull a transmission fluid sample and check for a milky, water-contaminated look, verify transmission pressure at the filter, and check axle and final drive oil for metal and water contamination. Check remaining tire tread and look for axle seal weep, since front-end loading runs higher with a felling head fitted than on a stock skidder. On the head and boom conversion itself, check the felling head cutting mechanism condition, accumulator charge, and hydraulic hose condition, since these were retrofitted onto an older chassis and hose runs and fittings vary machine to machine. Given the age and rarity of this conversion, have your dealer or a forestry-equipment specialist verify hydraulic circuit integrity before purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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