Caterpillar 939
Caterpillartrack-type loadertrack loader

Caterpillar 939

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 939 is a mid-size track-type (crawler) loader built in Japan and sold from 1994 through 1997 under PIN prefix 9GL, running the Cat 3046T turbocharged 6-cylinder diesel (roughly 67 kW / 90 hp at 2400 rpm) through a PS-TC powershift transmission with three forward and three reverse speeds. Caterpillar replaced it in 1997 with the 939C Hystat (PIN prefix 6DS), keeping the same 3046T engine but switching to a dual-path hydrostatic drivetrain. Operating weight runs roughly 9,484-9,816 kg (20,900-21,640 lb) depending on bucket and configuration, with general-purpose and multi-purpose buckets in the 1.0-1.15 m3 (1.3-1.5 cu yd) range. The 939 sits in Caterpillar's Japan-built track loader family alongside the larger 943, 953, 963 and 973, offering track flotation and tight-site maneuverability that wheeled loaders in its size class cannot match.

The defining change between generations is the drivetrain, not the engine: the base 939's PS-TC powershift with planetary final drives gave way to the 939C's Hystat closed-loop hydrostatic system, controlled through a single joystick for speed, direction and steering, with full power turns and smoother modulation than the powershift machine offered. The engine, undercarriage layout and general chassis carried over largely unchanged. That drivetrain split matters directly in today's parts and used-equipment market: transmission, final-drive and hydraulic-pump components between the 9GL powershift and 6DS Hystat generations are not interchangeable, so buyers need to confirm PIN prefix before ordering. Both generations are long out of production, but their compact footprint and track-based flotation keep steady demand in demolition, utility and confined-site work, sustaining an active market for used machines and rebuilt drivetrain assemblies.

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 939 specifications

Engine

Engine modelCat 3046T turbocharged diesel, inline 6-cylinder. Same engine carries across both the powershift 939 and the later Hystat 939C — no engine change between series.
Net power67 kW (90 hp) @ 2400 rpm
Displacement5.0 L (305 cu in)
AspirationTurbocharged
EmissionsNo EPA Tier or emissions certification published for this machine; it is a pre-emissions-regulation design from the 1990s into the early 2000s.

Weights

Operating weight, GP bucket9,484 kg (20,908 lb)
Operating weight, MP (4-in-1) bucket10,030 kg (22,113 lb)
Static tipping load6,607 kg (14,565 lb)
Field-documented operating weight, ripper + GP bucket9,816 kg (21,640 lb) — falls between the GP and MP bucket figures, consistent with a ripper-equipped unit

Dimensions

Overall length, bucket on ground4.36 m (14.3 ft)
Length to front of track2.97 m (9.75 ft)
Width, outside of tracks (no bucket)1.96-1.98 m (6.42-6.5 ft) — varies slightly by source
Width over bucket2.16 m (85 in / 7.09 ft)
Height, top of cab2.77 m (9.08-9.10 ft)
Bucket hinge pin height, full raise3.35 m (131.7 in)
Clearance at full height and dump2.67 m (8.75 ft)
Reach at full height and dump0.87 m (2.84 ft)
Ground clearance0.37-0.40 m (1.21-1.3 ft) — varies slightly by source
Track gauge1.55 m (61 in)
Track shoe width, standard406 mm (16 in); wider shoes in the 460-470 mm (18-18.5 in) range are referenced on some field-configured units
Length of track on ground2.14-2.16 m (7.03-7.10 ft)
Ground contact area, standard shoes1.74 m² (2,700 in²)

Performance

Travel speedAbout 10 km/h (6.2 mph) cited for the powershift 939. The Hystat 939C runs a two-range (low/high) hydrostatic drive instead of fixed gears; exact range speeds are not published in available spec sheets — verify with your dealer.
Ground pressure53.7 kPa (7.8 psi), standard configuration on 406 mm (16 in) shoes
Breakout force, standard bucket91.6 kN (20,200 lb)
Drawbar pullNot published in available spec sheets for this model — verify with your dealer.
GradeabilityNot published in available spec sheets for this model.
Hydraulic cycle timesRaise 5.6 sec, dump 2.4 sec, lower 2.9 sec

Blades / Bucket capacities

Configuration noteThe 939 series is a bucket-type track loader. It is not offered with a dozer-style S/SU/A blade line; the bucket is the primary load-handling attachment, with a rear ripper available for scarifying.
GP (general purpose) bucket, heaped1.15 m³ (1.5 yd³)
GP bucket, struck0.99 m³ (1.3 yd³)
MP (multi-purpose / 4-in-1) bucketSame nominal capacity class as the GP bucket; adds roughly 546 kg (1,205 lb) to operating weight compared with the GP bucket.
Bucket width2.16 m (85 in)

Service capacities

Fuel tank156.7 L (41.4 gal)
Cooling system20.8 L (5.5 gal)
Engine oil, with filter12.9 L (3.4 gal)
Final drive, each side14.8 L (3.9 gal)
Hydraulic system56.8 L (15 gal)
Hydraulic pump flow132 L/min (35 gpm), gear-type pump, relief valve set at 19,823 kPa (2,875 psi)
Electrical system12V, 55A alternator

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

939 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)About 13 L (13.7 US qt). Figure comes from the direct chassis-successor 939C Hystat, which carries the same 3046T engine; treat as a close reference and confirm against the 939 OMM for your serial range.Cat DEO (Diesel Engine Oil), viscosity selected from the machine's ambient-temperature viscosity chart — commonly SAE 15W-40 or SAE 10W-30 in temperate climates, stepping down to SAE 0W-30/0W-20 in cold climates.
Cooling systemAbout 21 L (5.5 US gal), per the 939C Hystat chassis-mate spec; verify against the 939 OMM.Cat ELC (Extended Life Coolant) or Cat DEAC antifreeze/coolant, mixed to the concentration called out in the machine's cold-weather protection chart.
Fuel tank157 L (41.4 US gal), per the 939C Hystat chassis-mate spec; verify against the 939 OMM.No. 2-D diesel fuel (or equivalent), meeting Cat's fuel sulfur/cetane specification for the engine.
Transmission (powershift, planetary, 3F/3R)Not documented in sources found for the base 939. The Hystat transmission on the 939C successor has no separate transmission case — its oil runs through the hydraulic system — so that figure cannot be cross-applied here. Check the 939 OMM refill-capacities chart or your dealer for the powershift case fill.Cat TDTO (Transmission/Drive Train Oil), grade per the ambient-temperature viscosity chart — typically SAE 30 in temperate climates, lighter multigrade TDTO for cold-weather starts.
Bevel gear / steering compartmentNot documented in sources found for this model.Cat TDTO, matching the powertrain oil spec, if the 939 splits a separate bevel-gear/steering case from the main transmission case as some Cat track loaders of this era do — confirm case layout against the OMM before filling.
Final drives (each side)About 14.7 L (15.5 US qt) per side, per the 939C Hystat chassis-mate spec (same final-drive family); verify against the 939 OMM.Cat TDTO, viscosity per the ambient-temperature chart.
Hydraulic system / tankAbout 56.8 L (15.0 US gal) tank capacity, per the 939C Hystat chassis-mate spec. Note that the Hystat variant routes transmission oil through the hydraulic circuit, so its tank figure is not a clean match for the base 939's separate powershift/implement hydraulic circuit — use as an approximate reference only and confirm against the 939 OMM.Cat TDTO or Cat HYDO (Hydraulic Oil), per the machine's hydraulic-system fluid spec; viscosity per the ambient-temperature chart.
Pivot shaftNot listed as a separate fill point in sources found; treat as a grease point rather than an oil compartment.Not applicable — service as a grease point (see grease row) unless the OMM specifies otherwise.
Grease pointsNot a fill capacity — serviced by scheduled grease-gun application, not a refill volume.Cat Multipurpose Grease (Cat MPGM) or an equivalent NLGI-graded chassis grease, applied at pivot pins, tipping links, and steering/track linkage points per the maintenance interval schedule.

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

Caterpillar 939 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and coolant level before starting the 3046T diesel
  • Walk around and inspect tracks, rollers, idlers and sprockets for damage, loose fasteners or oil leaks
  • Check backup alarm, warning lights and gauges for correct operation
  • Weekly: drain water and sediment from the fuel tank water separator
  • Weekly: grease loader arm, bucket and tilt cylinder pivot pins
  • Weekly: check track sag and adjust tension if outside spec
Every 250 h
  • Pull S·O·S oil samples from the engine, the PS-TC transmission or Hystat drive circuit, and both final drives
  • Inspect and clean the primary engine air filter element, replace if restriction indicator trips
  • Check fan belt and alternator belt condition and tension
  • Check battery electrolyte level and clean terminals
  • Check final drive oil level on both sides
Every 500 h
  • Change engine oil and filter on the 3046T
  • Change PS-TC transmission oil and filter on powershift 939 units, or replace the hydrostatic system oil filter on 939C Hystat units
  • Replace primary and secondary fuel filters
  • Change final drive oil on both sides
  • Replace the main hydraulic system oil filter
Every 1,000 h
  • Take a coolant S·O·S sample and verify corrosion inhibitor level
  • Inspect the turbocharger and air intake system for leaks or oil carryover
  • Check and adjust track chain tension and inspect roller frame wear strips
  • Inspect bucket and loader-arm pins and bushings for wear
  • Inspect hydraulic hoses and cylinder rod seals for leaks
Every 2,000 h
  • Change hydraulic tank oil if the machine is not running an extended-life fluid
  • Inspect and adjust engine valve lash on the 3046T
  • On PS-TC units, inspect transmission clutch packs and planetary gear sets for wear
  • On Hystat 939C units, test main pump and drive motor case-drain flow and check for cavitation noise or drift
  • Test hydraulic system relief valve pressures across loader and steering circuits
Every 4,000 h
  • Drain and refill cooling system with fresh coolant or top off Cat ELC per its extended service life
  • Plan final drive bearing and seal replacement once oil-sample trends show rising wear metals
  • Renew undercarriage wear components (track chain, rollers, idlers, sprockets) as a set once wear gauges show the chain is past factory limits
  • Exchange or reseal the Hystat pump/motor pair, or rebuild the PS-TC clutch pack and planetary set, based on accumulated sample and inspection history

Servicing the 939 beyond the schedule

Predictive Maintenance & Fluid Analysis

Pull S·O·S samples from the 3046T engine, the PS-TC transmission or Hystat hydrostatic circuit, and both final drives on schedule. Track soot loading and TBN trends on the turbocharged 3046T, since sustained loader duty runs it hotter than typical dozer cycles. On 939C Hystat units, watch iron and copper trends in the drive oil closely -- pump and motor wear shows up in sample data well before you feel drift or sluggish power turns. Cross-check final drive samples for water intrusion on machines used in wet or submerged track conditions.

Corrective & Common Repairs

Early 9GL-prefix 939 units are known for steering-valve and travel-linkage wear; Caterpillar issued a running production fix, so check function against a known-good machine before condemning parts. PS-TC transmissions typically show clutch-pack slip and delayed shift engagement first; 939C Hystat drives show drift, weak power turns or overheating drive oil as pump and motor wear progresses. Track pin and bushing wear, plus idler and roller seal leaks, remain the most common undercarriage complaints on high-hour machines of either generation.

Overhaul & Rebuild Points

Final drive bearing and seal replacement is usually the first major overhaul point on both generations, driven by oil-sample wear-metal trends rather than a fixed hour figure. PS-TC transmissions call for clutch pack and planetary gear set inspection at rebuild; Hystat drives call for pump and motor exchange or reseal once drift, cavitation noise or falling case-drain flow appear. Budget undercarriage renewal -- chain, rollers, idlers and sprockets -- as a single package once wear gauges show the chain has stretched past factory limits.

Seasonal & Environment Servicing

Match engine and hydraulic oil viscosity to the season -- the 3046T and the Hystat charge pump both lose efficiency on thick cold-start oil. Drain fuel tank water separators more often in wet or humid climates and confirm cold-start aids work before winter. On abrasive or wet job sites, clean the undercarriage daily to stop packed material from accelerating pin, bushing and roller wear, and check track sag more often than the standard interval, since shifting ground conditions change tension faster than a fixed schedule assumes.

939 common service parts

Part numberPart
094-7998Head, Fuel FilterCheck fitment →
096-9013Gasket, Fuel FilterCheck fitment →
7L-5707Spacer-Fuel FilterCheck fitment →
4N-0313Filter Element As-AirCheck fitment →
4N-0326Filter Element As-AirCheck fitment →

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

939 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
MID 030 - CID 0100 - FMI 03/04Engine oil pressure sensor circuit reading outside valid range (voltage above or below normal).Damaged or corroded sensor connector, chafed harness wire, or a failed oil pressure sensor. Not a confirmed loss of actual oil pressure until verified.Check wiring and connector at the oil pressure sensor, confirm actual pressure with a mechanical test gauge, then replace the sensor if the circuit still fails.
MID 030 - CID 0110 - FMI 03/04Engine coolant temperature sensor circuit reading outside valid range.Corroded sensor connector, damaged harness, or failed coolant temperature sensor.Inspect the sensor connector and wiring, verify actual coolant temperature with a hand-held gauge, replace the sensor if the circuit test fails.
MID 030 - CID 0168 - FMI 04System (battery) voltage below normal.Weak or discharged battery, failed alternator, loose belt, or corroded ground straps.Load-test the battery, check alternator output and belt tension, clean and tighten all ground connections.
MID 030 - CID 0324 - FMI 05/06Action (red warning) lamp circuit open or shorted on the monitor panel.Blown lamp/LED, damaged harness between the monitor panel and lamp, or a bad connector at the gauge cluster.Check lamp continuity, inspect the harness run from the monitor panel, repair or replace the lamp assembly.
Hystat drive oil high-temperature warning (939C)Closed-loop Hystat hydrostatic drive oil temperature warning lamp or gauge trips high.Air trapped in the Hystat circuit after pump, motor, or hose service; restricted oil cooler; low hydraulic oil level.Bleed air from the front and rear Hystat pumps by cycling the travel levers through full range at low idle per the testing-and-adjusting procedure, check the cooler and oil level, then retest temperature.
Hystat control lever position sensor out of calibration (939C)Forward/neutral/reverse and speed command signal from the control lever position sensor falls outside the range the Hystat controller expects.Sensor calibration drift, loose lever linkage, or a corroded sensor connector.Run the Hystat operator control calibration procedure, inspect lever linkage and sensor wiring, recalibrate with the appropriate Cat service tool.
Monitor panel blank / no gauges at key-onCaterpillar Monitoring System module fails to power up, all analog gauges stay dead.Blown monitor system fuse, corroded main harness connector behind the instrument panel, or a failed monitoring system module.Check the monitor system fuse first, inspect power and ground connections at the gauge cluster, replace the monitoring module if power is confirmed present but gauges remain dead.
MID 030 - CID 0177 - FMI 03/04 (939 powershift only)Transmission oil temperature sensor circuit reading outside valid range on the torque-converter powershift 939.Open or shorted sensor circuit, corroded connector.Check sensor wiring and connector, verify actual transmission oil temperature with a hand gauge, replace the sensor if the circuit still faults.

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

939 attachments & work tools

Blades

The 939/939C is a loader-shaped track-type loader built around a bucket, not a dozer, so Cat's S/SU/A/VPAT blade nomenclature (used on the D-series dozer line) is not documented for this model. A straight dozer-style blade is offered in this class for light bulldozing/grading duty, sized roughly to bucket/track width (about 2.1-2.4 m / 7-8 ft); confirm exact factory blade type and width with a dealer since spec sheets for this model list only bucket data.

Rippers

A multi-shank hinge-style rear ripper fits the 939 and 939C (shared fitment with 931B/C and 935B/C): frame plus shanks and tips, one lift cylinder, roughly 330 kg (about 730 lb) complete. Cat also lists a factory No. 3 ripper implement for the 939C. Single-shank giant rippers are a larger-dozer-class tool (D6 and up) and are not typical for this loader class.

Winches

No factory towing or logging winch option is documented for the 939 or 939C track loader; winch offerings in the Cat crawler line are concentrated on the D-series dozers (D4-D8), not this loader-shaped chassis. Treat any 939 winch listing as unverified until confirmed against a dealer configuration sheet.

Drawbars/counterweights

The 939C offers nine rear counterweight options spanning about 99-849 kg (217-1,870 lb) to balance the machine against whatever rear tool is mounted (ripper, sweeps, etc.), varies by configuration. A rear drawbar/hitch frame is typically part of the same rear-tool mounting group as the ripper and counterweight for light towing duty.

Cab/ROPS guarding (forestry/waste)

Canopy-equipped 939C machines get a folding vandalism/rock guard that stows under the dash and is raised and padlocked over the operator opening when needed. Optional logging sweeps protect the canopy structure in forestry work, and bolt-on rear track-guiding guards are available to cut abrasive wear in waste-handling and demolition settings.

Hydraulic arrangement (front/rear)

Base loader hydraulics use a gear-type pump rated around 132 L/min (35 US gpm) at about 198 bar (2,875 psi) relief, feeding the front lift/tilt circuit. A rear ripper is run off an added third hydraulic valve and control lever layered onto the base two-valve loader circuit. On the 939C the dual-path Hystat propel pumps/motors are a separate circuit from the implement hydraulics, not shared with the loader or ripper lines.

All 939 assemblies by section

Every catalogued assembly group for the Caterpillar 939. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
100-2796 Air Cleaner Gp
0A***26Fitting1
10***96Air Cleaner Group1
10***01Tube1
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103-0663 Air Cleaner Gp
10***63Air Cleaner Group1
4N***89Cover As-Air Cleaner1
4N***13Filter Element As-Air; (Secondary)(Air Cleaner)1
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125-1183 Air Cleaner Gp
12***83Air Cleaner Group1
4N***89Cover As-Air Cleaner1
4N***13Filter Element As-Air; (Secondary)(Air Cleaner)1
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7e-0831 Extension Gp-Exhaust
5A***99Clamp1
5M***56Pipe-Extension1
6V***01Nut; (3/8-16-Thd)(Plate To Rh And Lh Bracket As)1
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135-0401 Extension Gp-Exhaust
13***97Pipe-Extension1
13***01Extension Group-Exhaust1
5A***99Clamp1
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106-8270 Manifold Gp-Exhaust
10***70Manifold Group-Exhaust; (Exhaust)1
10***08Manifold-Exhaust1
10***09Gasket1
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106-8266 Manifold Gp-Inlet
10***66Manifold Group-Inlet1
10***64Gasket1
10***53Elbow1
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100-2794 Muffler Gp
10***94Muffler Group1
10***73Muffler As1
10***73Pipe-Exhaust1
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4m-0310 Precleaner Gp
1M***50Bowl1
1S***63Bolt (5/16)1
4M***10Precleaner As1
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121-7746 Precleaner Gp
12***46Precleaner Group1
13***43Clamp-Hose1
1M***50Bowl1
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106-8274 Turbocharger Gp
10***54Gasket-Exhaust1
10***74Turbocharger Group1
10***38Turbocharger Group1
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Basic Engine
106-8228 Camshaft Gp
09***28Key1
10***28Camshaft Group1
10***69Camshaft As1
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106-8248 Cover Gp-Valve Mechanism
10***48Cover Group-Valve Mechanism1
10***69Gasket; (Valve Cover)1
11***75Cap; (Oil Fill)1
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106-8231 Crankshaft Gp
08***13Pin1
09***28Key1
10***88Plate-Thrust; (Standard)3
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201-1037 Cylinder Block As
09***41Cap9
09***20Pin2
10***62Bushing1
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106-8230 Cylinder Block Gp
10***79Seal-Side2
10***30Cylinder Block Group1
12***11Kit-Jacket Water Heater1
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106-8249 Cylinder Head Gp
09***35Plug-Drain2
10***82Spring12
10***10Cap-Sealing12
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106-8254 Flywheel Gp
10***54Flywheel Group1
10***67Flywheel As1
14***16Bolt; (M12x1.25x40-mm)6
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106-8250 Gear Gp-Front
10***90Bolt (16mm Long)1
10***01Bushing1
10***50Gear Group-Front1
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106-8255 Housing Gp-Flywheel
10***35Seal As-Oil1
10***80Gasket-Rear1
10***99Bolt (30mm Long)2
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106-8252 Housing Gp-Front
09***29Seal-O-Ring (Id=139.5mm); (Id=139.50mm)1
10***77Gasket-Front Plate1
10***71Cover-Timing1
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106-8236 Lifting Gp-Engine
10***36Lifting Group-Engine; (Engine)1
23***94Gasket1
23***87Eye-Lifting; (Front Head)1
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106-8258 Pan Gp-Oil
10***81Gasket1
10***58Pan Group-Oil1
10***05Pan-Oil1
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106-8232 Piston & Rod Gp
10***57Ring Set(Standard)6
10***58Set-Piston Ring; (0.25-mm Os)6
10***59Set-Piston Ring; (0.50-mm Os)6
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106-8251 Pulley Gp-Crankshaft
09***28Key1
10***51Pulley Group-Crankshaft1
10***68Pulley1
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106-8253 Pulley Gp-Fan
10***53Pulley Group-Fan1
10***37Pulley1
11***75V-Belt Set; (Alternator)1
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100-8355 Support Gp-Engine & Xmsn
10***54Support As; (Rh)1
10***55Support Group-Engine & Xmsn1
11***50Support As; (Lh)1
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106-8238 Valve Mechanism Gp
10***65Plug-Rocker Arm Shaft2
10***67Bracket-Rocker Arm Shaft6
10***68Bolt-Rocker Bracket6
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Cooling System
106-8262 Cooler Gp-Engine Oil
10***62Cooler Group-Engine Oil; (Engine Oil)1
10***67Cooler-Oil; (Engine)1
19***89Gasket1
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100-8308 Fan Gp-Blower
10***67Spider As-Fan; (Blower, 6 Blades)1
10***69Guard As-Fan2
10***08Fan Group-Blower1
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143-9353 Fan Gp-Suction
13***87Spider As-Fan; (Fan, Suction)1
14***53Fan Group-Suction1
7X***39Bolt; (M8x1.25x110-mm)4
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106-8264 Lines Gp-Water
09***69Cover-Thermostat1
10***04Gasket; (Thermostat)1
10***64Lines Group-Water1
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106-8263 Pump Gp-Water
10***47Cover-Pump1
10***63Pump Group-Water1
10***73Pump As-Water1
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108-3207 Radiator Gp
10***68Shroud As1
10***99Hose-Radiator; (Inlet)1
10***00Hose-Radiator; (Outlet)1
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139-6884 Radiator Gp
13***84Radiator Group1
16***34Channel As1
16***69Channel As1
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111-9339 Radiator Gp
10***99Hose-Radiator; (Inlet)1
10***00Hose-Radiator; (Outlet)1
10***37Grid As-Sand Blast1
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Electrical And Starting System
105-2811 Alternator Gp-Charging
10***11Alternator Group-Charging1
11***64Pulley-Alternator1
11***65Frame As-Alternator1
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105-2814 Alternator Gp-Charging
10***14Alternator Group-Charging1
11***58Pulley-Alternator1
11***59Frame As-Alternator1
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103-6280 Alternator Gp-Charging -12 Volt, 55 Ampere
10***80Alternator Group-Charging; -12 Volt, 55 Ampere1
10***11Alternator Group-Charging1
13***77Strap As1
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103-6281 Alternator Gp-Charging
10***81Alternator Group-Charging1
10***14Alternator Group-Charging1
13***77Strap As1
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8y-8232 Battery & Wiring Gp
03***07Terminal-Ring; (0-Ga, 3/8-In Screw)2
03***55Locknut; (5/16-18-Thd)(Marked X)2
10***93Harness As-Dash1
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105-1450 Battery Gp
03***55Locknut; (5/16-18-Thd)(Marked X)4
10***00Cable As1
10***01Cable As1
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106-8229 Glow Plug Gp
10***29Glow Plug Group1
10***59Glow Plug6
10***60Bar-Connector1
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105-8070 Lamp Gp-Flood
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***70Lamp Group-Flood1
15***54Lens As; (Flood)1
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130-7870 Lighting Gp-Flood
10***95Wire As1
10***96Wire As1
10***97Wire As1
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104-9641 Lighting Gp-Rops
10***95Wire As1
10***96Wire As1
10***97Wire As1
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104-9642 Lighting Gp-Rops
10***95Wire As1
10***96Wire As1
10***97Wire As1
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136-7784 Starting Aid Gp-Ether
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
13***14Ether Cylinder1
13***84Starting Aid Group-Ether1
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105-9804 Starting Motor Gp-Electric
10***33Starting Motor Group-Electric1
10***04Starting Motor Group-Electric1
3K***57Gasket1
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105-3133 Starting Motor Gp-Electric
10***85Cap-Starting Motor1
10***33Starting Motor Group-Electric1
10***61Frame-Starter1
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7n-0718 Switch Gp-Disconnect -Battery
2H***22Lockwasher2
6F***45Nut-Full; (3/8-24-Thd)2
7N***18Switch As-Disconnect; -Battery-Ground Level1
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168-7908 Switch Gp-Magnetic -Main Power, Propel Sensor
15***70Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness)1
16***08Switch Group-Magnetic; -Main Power, Propel Sensor1
18***36Socket-Connector; (16-Ga To 18-Ga)2
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9g-7641 Switch Gp-Start -Engine, Key
6V***62Screw-Machine; (8-32x0.31-In)4
7T***99Nut-Mounting; (1-32-Thd)1
9B***33Lockwasher; (Int'L Tooth)4
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107-2333 Warning Gp-Backup
10***33Warning Group-Backup1
12***49Alarm Group1
16***71Harness As1
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102-9159 Wiring Gp-Cab
09***66Washer; (Hard) (4.5x9x1mm Thk)2
10***12Name-Plate (Name Of Machine:Ex280h), Cover1
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
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Engine Arrangement
110-4741 Engine Ar
10***80Alternator Group-Charging; -12 Volt, 55 Ampere1
10***04Starting Motor Group-Electric1
10***28Camshaft Group1
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Frame And Body
8y-5650 Counterweight Gp-Rear
4V***18Spacer; (27.5x50x17-mm Thk)2
5G***94Counterweight2
5G***95Counterweight1
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8y-8874 Counterweight Gp -Sprocket
12***19Counterweight-Sprocket2
6V***82Nut-Full (3/4-10 Thd)6
7H***29Washer6
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112-2259 Counterweight Gp-Rear
11***56Counterweight2
11***59Counterweight Group-Rear1
11***87Counterweight2
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112-2257 Counterweight Gp-Rear
11***57Counterweight Group-Rear1
11***87Counterweight2
14***37Counterweight As-Rear1
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119-9449 Counterweight Gp-Rear
11***87Counterweight2
11***49Counterweight Group-Rear1
12***05Hose As2
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119-9452 Counterweight Gp-Rear
11***56Counterweight3
11***87Counterweight2
11***52Counterweight Group-Rear1
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119-9450 Counterweight Gp-Rear
11***56Counterweight1
11***87Counterweight2
11***50Counterweight Group-Rear1
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4y-7304 Counterweight Gp-Rear
14***37Counterweight As-Rear1
1K***32Dowel1
4Y***04Counterweight Group-Rear1
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112-2258 Counterweight Gp-Rear
11***56Counterweight1
11***58Counterweight Group-Rear1
11***87Counterweight2
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119-9451 Counterweight Gp-Rear
11***56Counterweight2
11***87Counterweight2
11***51Counterweight Group-Rear1
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115-4270 Counterweight Gp-Rear
11***56Counterweight3
11***70Stud-Taperlock4
11***87Counterweight2
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5g-0779 Drawbar Gp
3B***46Cotter; (Pin)1
5G***79Drawbar Group; (Fixed)1
5G***80Drawbar Assem.1
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8y-8254 Frame Gp-Loader
10***32Handle As1
1F***48Nut 12.70 mm(.50 In.) Thread16
2H***82Lug2
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101-4376 Guard Gp-Bottom
10***76Guard Group-Bottom, . Carrier1
10***77Guard As1
10***31Guard As1
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112-3814 Guard Gp-Bottom
09***32Spacer; (13.5x22x14-mm Thk)6
11***06Guard As1
11***14Guard Group-Bottom1
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109-7145 Guard Gp-Cab
10***45Guard Group-Cab1
10***46Guard As-Rear1
11***18Bracket As1
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107-2042 Guard Gp-Cab
10***42Guard Group-Cab1
11***25Guard As-Brush1
5P***76Washer Guard To Support Assembly And Guard Assembly6
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109-7148 Guard Gp-Cab
10***48Guard Group-Cab1
10***49Guard As-Side-Lh1
10***50Guard As-Side-Rh1
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107-2041 Guard Gp-Cab
10***41Guard Group-Cab1
11***24Guard As1
5P***76Washer Guard To Support Assembly And Guard Assembly9
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8y-8220 Guard Gp-Radiator
10***20Grill As1
15***24Guard As-Radiator1
2Y***29Grommet1
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104-3626 Guard Gp-Idler
10***26Guard Group-Rock1
10***29Guard As-Rh2
10***30Guard As-Lh2
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8y-8224 Hood & Guard Gp
03***34Pin; (19.17 mm Lg)1
10***45Hood As1
1K***50Spring1
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110-6947 Hood Gp
03***34Pin; (19.17 mm Lg)1
11***51Panel As; (Lh)1
11***52Panel As; (Rh)1
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112-3656 Suppression Ar-Sound
11***47Hood Group1
11***56Suppression Ar-Sound1
7X***92Plate Group-Sound Suppression1
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104-9646 Sweep Gp
10***46Sweep Group1
10***60Bracket As-Rh1
10***62Bracket As-Lh1
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Fuel System
8y-8209 Control Gp-Gov & Transmission
10***28Handle1
10***29Plate1
11***10Bracket1
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8y-8877 Control Gp-Governor
03***48Clip; (11.11mm .437in Id)1
10***06Bracket1
10***07Rod End1
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106-8271 Filter Gp-Primary Fuel
09***98Head, Fuel Filter1
09***25Plug1
09***26Bolt; (M14x1.5x26-mm)1
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8y-8278 Lines Gp-Fuel
10***27Tube As1
10***28Tube1
10***31Hose As1
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106-8267 Lines Gp-Fuel Filter
09***34Hose As1
09***40Washer2
09***09Screen1
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106-8268 Lines Gp-Fuel Injection
09***35Cap1
09***74Clip-Hose13
09***94Shim (0.700mm Thick)1
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107-3650 Lines Gp-Fuel Injection
10***50Lines Group-Fuel Injection1
11***37Line As-Fuel Injection1
11***38Line As-Fuel Injection1
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110-9716 Pump Gp-Fuel Injection
09***29Seal-O-Ring (Id=139.5mm); (Id=139.50mm)1
10***30Adapter1
10***31Bracket1
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123-8916 Separator Gp-Water
09***40Washer4
09***41Bolt; (M14x1.5x27-mm)2
11***21Fitting2
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8y-8206 Tank Gp-Fuel
03***57Bolt; --To Reverse Shaft Bearing Retainer & Forward Shaft Bearing Retainer2
09***24Plug-Button1
11***04Tank Group-Fuel1
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110-1004 Tank Gp-Fuel
11***04Tank Group-Fuel1
11***10Gasket-Screen; (Hydraulic Tank)1
11***11Cover1
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Hydraulic System
125-8244 Conversion Gp-Field
12***44Conversion Group-Field1
4K***88Seal; Adapter To Oil Pump Outlet Manifold2
9K***42Connector-Flared2
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130-2884 Conversion Gp-Field
12***34Valve Group-Makeup1
13***84Conversion Group-Field1
3K***60Seal Pilot Manifold On; Seal To Boom Check Valve Drain1
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3g-7365 Cylinder Gp-Bucket
2H***31Packing,Preformed Plate Part Of Kit P/N 4j***801
3G***65Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket1
3G***66Cylinder As1
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105-2808 Cylinder Gp-Lift
10***08Cylinder Group-Lift1
10***87Cylinder As; (Lh)1
16***95Seal As-Buffer1
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105-2886 Cylinder Gp-Lift -Rh
10***85Cylinder As; (Rh)1
10***86Cylinder Group-Lift; -Rh1
16***95Seal As-Buffer1
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7j-9920 Cylinder Gp-Ripper
16***95Seal As-Buffer1
16***04Seal-U-Cup1
1H***28Seal (3.73 In. Inside Diameter)1
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136-3129 Cylinder Gp-Tilt
13***80Piston1
13***29Cylinder Group-Tilt1
13***67Cylinder As1
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101-2518 Cylinder Gp-Tilt
03***15Spacer2
10***18Cylinder Group-Tilt1
10***19Cylinder As1
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104-5744 Hydraulic Ar-3 Valve
10***44Hydraulic Ar-3 Valve1
10***08Valve Group-Bank 31
13***28Valve Group-Bank 31
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117-3532 Hydraulic Ar-3 Valve
10***08Valve Group-Bank 31
11***30Control Group-Hydraulic Hand1
11***32Hydraulic Ar-3 Valve1
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104-9644 Hydraulic Ar-3 Valve
10***44Hydraulic Ar-3 Valve1
10***24Lines Group-Front1
10***25Mounting Group-Attachment1
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104-9643 Hydraulic Ar-4 Valve
10***43Hydraulic Ar-4 Valve1
10***24Lines Group-Front1
10***25Mounting Group-Attachment1
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119-8894 Hydraulic Ar-4 Valve
10***24Lines Group-Front1
10***25Mounting Group-Attachment1
10***09Valve Group-Bank 41
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107-5594 Kickout & Positioner Gp
10***94Kickout & Positioner Group1
10***91Tube As1
10***93Rod As1
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104-9724 Lines Gp-Front
03***90Connector-Flared2
10***24Lines Group-Front1
10***76Tube As1
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8y-8262 Lines Gp-Hydraulic
10***80Tube As1
10***81Tube As1
10***83Hose As2
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8y-8253 Lines Gp-Lift Cylinder
00***81Tee-Union; (Flared 37-Deg)1
03***49Elbow; (90 Degree, 37 Degree Flared)2
10***22Tube As; (Rh)1
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111-3810 Lines Gp-Pump
03***35Connector-Flared1
03***51Elbow )-Inlet Port To Valve Group1
03***28Clip; (31.8mm Id)2
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128-9717 Lines Gp-Pump
03***28Clip; (31.8mm Id)2
10***30Tube As1
10***59Bracket As1
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5g-0543 Lines Gp-Rear Attachment
03***64Elbow (90 Degrees)1
03***90Connector-Flared2
12***22Tube As1
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6s-3559 Lines Gp-Ripper
13***77Shield4
13***92Grommet2
2M***80Seal--To Connector Pump Outlet2
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8y-8258 Lines Gp-Tilt Cylinder
03***49Elbow; (90 Degree, 37 Degree Flared)2
10***18Tube As; (Rh)1
10***19Tube As; (Rh)1
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104-9725 Mounting Gp-Attachment
10***25Mounting Group-Attachment1
5H***94Boss (25.4mm Thick); (1/2-13-2b Thd)2
8F***36Lug -Weld To Push Frame Strut; (3/8-16x0.75-In)7
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6s-5905 Mounting Gp-Cylinder
2K***03Washer (Bar)2
3B***89Fitting-Grease; (Fan And Alternator Drive)4
6S***85Pin2
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8e-7652 Pump Gp-Gear
2S***31Bearing (Part Of 1p***87 Assem.)4
3S***07Bolt-12 Point Head; (3/8-16x2-In)4
4M***89Seal (4.109" Inside Diameter)1
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111-5788 Pump Gp-Gear
11***88Pump Group-Gear1
11***52Kit-Seal1
3G***83Seal; (Lip Type)1
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112-1172 Pump Gp-Gear
11***88Pump Group-Gear1
11***72Pump Group-Gear1
6D***04Gasket--To Housing Assembly Rear1
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8e-7651 Pump Gp-Gear
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter2
2P***92Seal (Id=133.02mm)1
5M***94Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler2
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8y-8204 Tank & Filter Gp-Hydraulic
10***78Plate As1
10***79Tank Group-Hydraulic1
10***41Cover As1
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103-4679 Tank Gp-Hydraulic
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly8
10***79Tank Group-Hydraulic1
1F***48Nut 12.70 mm(.50 In.) Thread6
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105-2522 Valve & Mtg Gp-Control
10***22Valve & Mtg Group-Control1
10***06Valve Group-Bank 21
1F***48Nut 12.70 mm(.50 In.) Thread9
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128-9713 Valve & Mtg Gp-Control
12***12Bracket As1
12***13Valve & Mtg Group-Control1
13***18Valve Group-Bank 21
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8e-7733 Valve Gp-Selector & Press Cont
0S***18Bolt; (5/16-18x1-In)(Hydraulic Pump)3
2B***94Bolt Compression Release Shaft Locking1
2J***26Seal-O-Ring (Id=39.27mm)2
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107-0406 Valve Gp-Bank 2
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***06Valve Group-Bank 21
10***03Housing As-Inlet1
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134-0318 Valve Gp-Bank 2
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***03Housing As-Inlet1
12***80Valve Group-Relief1
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134-0328 Valve Gp-Bank 3
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***03Housing As-Inlet1
10***21Valve Group-Control1
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107-0408 Valve Gp-Bank 3
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***08Valve Group-Bank 31
10***03Housing As-Inlet1
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107-0407 Valve Gp-Bank 3
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***07Valve Group-Bank 31
10***03Housing As-Inlet1
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107-0409 Valve Gp-Bank 4
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***09Valve Group-Bank 41
10***03Housing As-Inlet1
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134-0330 Valve Gp-Bank 4
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
10***03Housing As-Inlet1
10***20Valve Group-Control1
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6s-4767 Valve Gp-Breaker Relief
2B***94Bolt Compression Release Shaft Locking3
3B***05Washer,Lock Tube Assembly Mounting; Used On Engine P/N 5r6983
3B***38Nipple-- Bushing To Pressure Protection Valve; -- Bushing To Pressure Protection Valve1
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8j-9471 Valve Gp-Check
3D***24O-Ring - For Oil Drain & Level Plug (Items 3 & 7)1
6F***55Seal --To Manifold Ferrule1
8J***71Valve Group-Check; -Lift Cylinder Circuit1
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125-8239 Valve Gp-Control
00***43Plate-Valve Seal1
11***20Coil As1
12***39Valve Group-Control1
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146-8034 Valve Gp-Control
11***98Spring1
11***57Cover1
11***59Body-Valve1
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108-8520 Valve Gp-Control
00***41Cap1
00***43Plate-Valve Seal2
00***44Retainer2
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108-8521 Valve Gp-Control
00***41Cap1
00***43Plate-Valve Seal2
00***44Retainer2
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117-8824 Valve Gp-Control
0S***30Pin (Part Of 2s***65 Assem.)1
11***98Spring1
11***57Cover1
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146-8033 Valve Gp-Control
11***98Spring1
11***57Cover1
11***60Spool1
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117-8825 Valve Gp-Control
0S***30Pin (Part Of 2s***65 Assem.)1
11***98Spring1
11***57Cover1
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8y-6735 Valve Gp-Control
0S***30Pin (Part Of 2s***65 Assem.)1
11***41Spacer; (10x22x2-mm Thk)1
1H***49Ring-Snap1
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8y-6734 Valve Gp-Control
0S***30Pin (Part Of 2s***65 Assem.)1
11***41Spacer; (10x22x2-mm Thk)1
1H***49Ring-Snap1
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108-8519 Valve Gp-Control
00***43Plate-Valve Seal1
03***05Seal-O-Ring1
10***19Valve Group-Control1
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108-8518 Valve Gp-Control
00***43Plate-Valve Seal1
03***59Seat-Spring2
10***30Spring1
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125-8240 Valve Gp-Control
00***43Plate-Valve Seal1
03***05Seal-O-Ring1
11***21Sleeve1
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123-8234 Valve Gp-Makeup
6e-3093 Valve Gp-Relief
03***27Seal-O-Ring; (19.18mm Id)1
03***43Seal-O-Ring2
4F***88Washer1
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6e-5234 Valve Gp-Relief
03***67Ring; (Back Up)1
03***36Seal-O-Ring2
2P***75Seal-O-Ring1
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121-5680 Valve Gp-Relief
03***67Ring; (Back Up)1
03***36Seal-O-Ring2
12***80Valve Group-Relief1
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6e-3090 Valve Gp-Relief
03***67Ring; (Back Up)1
03***36Seal-O-Ring2
3P***47Seal-O-Ring (Id=13.94mm); (13.949mm Id)1
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6e-3092 Valve Gp-Relief
03***27Seal-O-Ring; (19.18mm Id)1
03***43Seal-O-Ring2
6E***92Valve Group-Relief1
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6e-3089 Valve Gp-Relief
03***67Ring; (Back Up)1
03***79Seal-O-Ring (Id=10.82mm)1
03***36Seal-O-Ring2
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8e-7735 Valve Gp-Selector & Press Cont
1J***53Pin-Spring2
1P***16Seal-O-Ring; (11.63mm Id)4
2A***46Plug 9.80mm(.386in.)Outside Dia.2
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Implements
5g-1136 Brace Gp-Lift Cylinder
2D***35"U"-Bolt1
5G***35Brace Assem.1
5G***36Brace Group-Lift Cylinder; Lift Cylinder Brace Group1
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8y-8255 Control Gp-Bucket
10***49Arm As1
10***32Lever2
10***33Pin As2
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Lubrication System
106-8261 Filter Gp-Engine Oil
09***68Plug, Tapered2
09***28Seal-O-Ring (Id=25.70mm)1
09***71Seal-O-Ring (Id=94.40mm)1
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106-8265 Fumes Disposal Gp
10***65Fumes Disposal Group1
10***43Hose; (Upper)1
10***44Hose; (Lower)1
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106-8257 Gauge Gp-Oil Level (Dipstick) -Engine
10***57Gauge Group-Oil Level (Dipstick); -Engine1
12***41Tube As-Guide1
20***47Gauge-Oil Level; (Engine Oil Dipstick)1
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106-8269 Pump Gp-Engine Oil
09***21Seal-O-Ring (Id=19.08mm)1
09***85Washer-Copper1
10***44Nut1
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147-1046 Valve Gp-Fluid Sampling
14***46Valve Group-Fluid Sampling; -Engine Oil1
3B***64Bushing; (Reducing)1
7J***11Elbow-Pipe; (1/4-18 Nptf Thd)1
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Operator Station
3e-6107 Radio Gp -Am/Fm Cassette
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)1
19***54Sleeve1
3E***89Wedge-Receptacle Lock; (8-Pin)1
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3e-6106 Radio Gp -Am/Fm Cassette
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)1
3E***89Wedge-Receptacle Lock; (8-Pin)1
3E***06Radio Group-Am/Fm; -Am/Fm Cassette1
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176-3900 Accumulator Gp-Refrigerant -Uncharged
17***00Accumulator Group-Refrigerant; -With Desiccant1
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186-6190 Accumulator Gp-Refrigerant -Charged
18***90Accumulator Group-Refrigerant; -With Desiccant1
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6w-8505 Adjuster Gp-Seat
01***89Bolt; (1/2-13x0.75-In)1
1B***82Spacer1
4V***50Plate-Slide Track1
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8y-8183 Air Conditioner Ar
10***82Guard As-Fan1
10***61Compressor & Mtg Group-Refrig1
10***41Air Conditioner Group1
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101-9641 Air Conditioner Gp
06***93Grommet; (Rh)1
10***41Air Conditioner Group1
10***37Coil As-Evaporator1
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103-4227 Blower Gp-Cab
10***43Plate-Orifice2
10***26Wheel As-Blower2
10***27Blower Group-Cab1
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104-4807 Cab Gp-Enclosed Rops
10***48Liner-Cab1
10***49Visor1
10***54Window As-Sliding1
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100-9961 Compressor & Mtg Gp-Refrig
10***59Support As1
10***61Compressor & Mtg Group-Refrig1
10***68Pulley1
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3e-1907 Compressor Gp-Refrigerant
10***07Kit-Connecting Plug; (2-Pin)(Electronic Control)1
3E***07Compressor Group-Clutch & Refrig1
3E***58Compressor Group-Refrigerant1
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3e-1908 Compressor Gp-Refrigerant
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***39Pin-Connector; (14-Ga To 18-Ga)(For 14 Gauge Wire)2
31***18Valve As-Pressure Relief; (Refrigerant Compressor)1
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8y-8185 Condenser & Mtg Gp-Refrigerant
10***16Condenser Group-Refrigerant1
10***11Bracket As1
13***51Cover As1
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101-9616 Condenser Gp-Refrigerant
10***16Condenser Group-Refrigerant1
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***15Relay As; (12-Volt)(Junction Box)2
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5g-0332 Control Gp-Hydraulic Hand
0L***70Handle-Lever1
13***59Lever1
1A***57Pin--Yoke End1
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5g-0333 Control Gp-Hydraulic Hand
0L***70Handle-Lever1
23***04Rod1
2F***16Nut (Mounted On Flywheel Housing)1
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117-3530 Control Gp-Hydraulic Hand
0L***70Handle-Lever1
11***30Control Group-Hydraulic Hand1
1B***82Spacer1
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5g-0331 Control Gp-Hydraulic Hand
0L***70Handle-Lever1
13***95Rod As1
1L***13Rod-Control1
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106-8446 Control Gp-Transmission
10***46Control Group-Transmission1
10***47Bracket As1
10***48Plate1
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105-4521 Dash Gp
03***33Washer; (10.2 X 50.8 X 2.50mm Thk)5
10***83Liner1
10***08Dash As1
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8y-8212 Dash Gp
10***49Bracket As1
10***50Film1
10***51Panel As1
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102-9153 Door Gp-Cab
10***00Glass1
10***46Cover1
10***48Door As1
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124-4246 Door Gp-Cab
10***00Glass1
12***46Door Group-Cab1
12***19Cover1
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8y-5874 Extension Gp-Backrest -Cloth
8Y***74Extension Group-Backrest; Backrest Extension Group1
8Y***77Pan As-Extension1
8Y***43Cushion Kit; (Consists Of Fastener, Cushion Assem.)1
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8y-5959 Extension Gp-Backrest -Vinyl
8Y***77Pan As-Extension1
8Y***47Fastener2
8Y***59Extension Group-Backrest1
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116-4685 Gauge Gp-Cluster
11***85Gauge Pack Group1
11***86Track Group1
7N***79Socket-Governor Solenoid Wire To Housing4
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8y-5047 Guard Gp-Vandalism
3B***17Pin,Cotter Governor And Decelerator Control2
5C***90Nut; (M6x1-Thd)(Air Inlet Heater)2
5M***62Bolt; (3/8-16x0.75-In)4
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103-8968 Heater Gp-Cab
10***42Heater Group-Cab1
10***01Cover1
10***03Duct1
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111-6802 Heater Gp-Cab
00***14Coupling-Pipe1
00***83Nipple-Pipe; (Hexagon)1
09***92Locknut; (M6x1-Thd)1
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119-9495 Heater Gp-Cab
09***92Locknut; (M6x1-Thd)1
10***43Plate-Orifice2
10***26Wheel As-Blower2
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101-9642 Heater Gp-Cab
10***42Heater Group-Cab1
10***31Plate1
10***32Plate1
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8y-1562 Horn Gp-Electric
10***04Kit-Receptacle; (4-Pin)(Start Switch)1
10***70Switch As-Rocker; (Horn)1
10***55Housing-Switch; (Lights)1
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108-4582 Housing Gp-Seat Suspension
09***78Pin-Spring1
10***24Kit-Indicator; (Weight Adjustment)(Suspension Seat)1
10***79Kit-Bumper; (Weight Adjustment)(Suspension Seat)1
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101-4953 Installation Gp-Radio
10***53Installation Group-Radio1
2N***80Screw-Machine; (10-24x0.75-In)8
3E***56Washer-Hard; (17.5x30x6-mm Thk)8
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8y-8226 Instrument Gp
11***85Gauge Pack Group1
3L***87Lockwasher 7.24mm(.285in.)O.D.; (3.7x7.24x.48mm Thk)2
3T***30Cover As-Protection; (Start Switch)1
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8y-8184 Lines Gp-Air Conditioner
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***22Tube As1
10***23Tube As1
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108-4804 Lines Gp-Heater
00***14Coupling-Pipe1
00***83Nipple-Pipe; (Hexagon)1
10***23Valve As-Shutoff; (Lower)1
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105-1660 Mounting Gp-Cab
10***51. Tumbler; Driving, Boot As1
10***60Mounting Group-Cab1
12***84Plate1
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5g-0460 Mounting Gp-Rops
0S***73Bolt 50.80 mm(2 In.) Long2
1D***30Bolt 101.6 mm(4 In.) Long4
2J***07Nut-Full; (1-8 X38.1 Thd)2
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108-8421 Pan Gp-Backrest -Lumbar
10***21Pan Group-Backrest; -Seat Back1
10***23Shaft As-Lumbar1
10***24Pan-Lumbar1
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8y-5992 Pan Gp-Seat
3K***97Pin 3.18 mm(.125 In.) Diameter4
6V***56Ring-Retaining2
8Y***92Pan As-Seat; (Bottom)1
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3e-7140 Radio Gp
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)1
18***35Pin-Connector; (16-Ga To 18-Ga)7
19***54Sleeve1
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173-6532 Radio Gp -Am/Fm Cassette
10***06Receptacle Kit; (Includes Wedge And Receptacle Assem.)1
13***65Bumper1
17***32Radio Group; (Am/Fm-Cassette)1
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104-4806 Rops Ar-Enclosed
10***63Seat & Support Group1
10***81Alternator Group-Charging1
10***06Rops Ar-Enclosed1
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107-9446 Rops Ar-Enclosed
10***53Installation Group-Radio1
10***57Wiper Group-Window1
10***58Washer Group-Window1
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107-2335 Rops Ar-Open
10***49Rops Group-Open1
10***35Rops Ar-Open1
5G***60Mounting Group-Rops1
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106-5649 Rops Gp-Open
10***49Rops Group-Open1
10***50Rops As1
10***34Liner-Cab1
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102-9163 Seat & Support Gp
03***32Bolt; (5/16-18x0.43-In)6
10***49Shim; (1.6-mm Thk)1
10***50Shim; (1-mm Thk)2
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8y-8282 Seat & Support Gp
03***32Bolt; (5/16-18x0.43-In)6
10***49Shim; (1.6-mm Thk)1
10***50Shim; (1-mm Thk)2
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122-4617 Seat Belt Gp -Retractable
12***17Seat Belt Group; -Retractable-Operator1
1A***50Bolt (7/16-20x1.75in); (7/16-20x1.75-In)1
4D***32Locknut (7/16-20 Thd)1
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8y-3792 Seat Belt Gp -Retractable
8S***34Locknut; (Flange) (7/16-20 Thd)1
8T***60Washer-Hard (For Use With 7/16 In Bolts)1
8Y***92Seat Belt Group; -Retractable-Operator1
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156-1148 Seat Belt Gp -Retractable
15***48Seat Belt Group; -Retractable-Operator1
1A***50Bolt (7/16-20x1.75in); (7/16-20x1.75-In)1
1L***80Bolt; (7/16-20x1.5-In)1
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8y-5986 Seat Gp -Cloth, Lumbar
06***03Shim (.060mm Thk); (1.52-mm Thk)4
09***78Pin-Spring1
09***14Pin, Clevis1
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8r-5373 Seat Gp-Suspension
00***92Screw-Washer Head; (1/4-20x0.5-In)4
03***71Capscrew, Csk. Hd., 3/8in.-16 N.C. X 1in.2
10***65Pin1
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8y-5976 Seat Gp -Vinyl
06***03Shim (.060mm Thk); (1.52-mm Thk)4
09***78Pin-Spring1
09***14Pin, Clevis1
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8y-3914 Seat Gp-Suspension
00***92Screw-Washer Head; (1/4-20x0.5-In)4
03***71Capscrew, Csk. Hd., 3/8in.-16 N.C. X 1in.2
10***65Pin1
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8y-6138 Seat Gp-Suspension -Cloth, Lumbar
10***82Suspension Group-Seat; -Contour-Shock Absorber1
14***45Kit-Slider Block; (Suspension Seat)1
15***48Seat Belt Group; -Retractable-Operator1
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107-2058 Seat Gp-Suspension
10***58Seat Group-Suspension1
16***50Lever4
8Y***38Seat Group-Suspension; -Cloth, Lumbar1
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8y-6179 Seat Gp-Suspension -Vinyl
10***82Suspension Group-Seat; -Contour-Shock Absorber1
4F***79Bolt Clip To Tube Assembly (Aftercooler Radiator Inlet)1
8Y***92Seat Belt Group; -Retractable-Operator1
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106-6439 Seat Gp-Suspension
10***39Seat Group-Suspension1
16***50Lever4
8Y***79Seat Group-Suspension1
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108-4082 Suspension Gp-Seat -Contour
10***03Fastener20
10***94Kit-Tether Belt; (Suspension Seat)(Seat Suspension)1
10***95Kit-Suspension Roller; (Suspension Seat)(Seat Suspension)1
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6w-8502 Suspension Gp-Seat
02***24Locknut; (1/4-20-Thd)2
16***61Arm As1
17***21Clip23
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106-9706 Tank Gp-Window Washer
10***06Tank Group-Window Washer1
10***19Pump As-Washer1
10***29Nozzle As-Washer1
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102-9158 Washer Gp-Window
10***58Washer Group-Window1
10***06Tank Group-Window Washer1
8L***13Strap-Cable(Tie 5.50" Long)7
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101-4966 Window As-Sliding
10***66Window As-Sliding1
10***69Glass1
10***70Glass1
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101-4954 Window As-Sliding
10***54Window As-Sliding1
10***67Glass1
10***68Glass1
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102-9157 Wiper Gp-Window
01***16Setscrew; (8-32x0.5-In)1
10***57Wiper Group-Window1
10***04Arm-Window Wiper2
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106-9708 Wiper Gp-Window
10***08Wiper Group-Window1
10***26Motor As-Window Wiper1
3Y***88Receptacle (To Wiper Switch)1
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106-9707 Wiper Gp-Window
10***07Wiper Group-Window1
10***26Motor As-Window Wiper1
3Y***88Receptacle (To Wiper Switch)1
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Power Train
8e-7614 Case & Parts Gp-Planetary
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case18
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly4
1D***17Nut-Plate And Angle Assembly To Hydraulic And Fuel Tanks; Nut Plate And Angle Assembly To Hydraulic And Fuel Tanks4
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8e-7734 Control Gp-Transmission Hyd
3S***33Sleeve1
5F***99Bolt-Head Assembly To Cylinder Block4
5M***94Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler4
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9p-7244 Cover Gp-Shipping
0L***43Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender6
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold4
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case4
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106-6409 Drive Gp-Power Take-Off
10***09Drive Group-Power Take-Off1
10***50Universal Joint Group1
1B***81Bolt Coupling To Shafts8
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9p-4540 Drive Gp-Pump
03***58Bearing As-Roller; Bearing As-R0ller1
1B***86Bolt-Bracket Assembly To Timing Gear1
1T***43Ball Bearing1
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8y-6762 Filler Gp-Power Train Oil
0S***91Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***821
10***11Tube As1
10***12Angle1
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9p-6277 Filter Gp-Oil -Transmission
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly6
1C***51Bolt--Installation Of 2v***26 Retainer1
2P***34Filter Element-Oil; (Winch)1
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8y-5628 Drive Gp-Final
10***91Cone-Roller Bearing4
10***95Cup-Roller Bearing4
10***74Shaft2
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8e-7615 Gear & Case Gp-Transfer
0S***91Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***8218
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly12
0T***02Bolt; (3/8-16x0.625-In)(Shield To Head)4
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8y-8208 Gear Gp-Bevel
0L***78Bolt 44.45 mm(1.75 In.) Long8
0L***41Nut; (1-1/2-12-Thd)(Spl)2
0T***29Locking Plate,Nut A Pump Mtg Part Of Kit P/N 5r***251
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107-4369 Lines Gp-Power Train Oil
10***69Lines Group-Power Train Oil1
10***92Tube As1
10***93Plate As1
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8y-8257 Lines Gp-Torque Conv Cooler
03***96Connector; (Flared)2
2M***80Seal--To Connector Pump Outlet2
3R***04Elbow- Tube Assembly To Manifold2
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8e-7593 Planetary Gp-Transmission
00***16Ring2
06***11Ring-Retaining1
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly8
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102-8585 Shaft Gp-Drive
10***84Plate1
10***85Shaft Group-Drive1
5T***39Spider & Bearing Group2
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5t-8739 Spider & Bearing Gp
5T***39Spider & Bearing Group1
8D***38Grease Nipple1
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8e-7298 Sprocket Gp
11***78Segment-Sprocket2
2S***58Washer-Hard; (17x29x3-mm Thk)(Engine Brake)23
6I***26Segment-Sprocket3
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1t-1929 Torque Converter Gp
0S***84Bolt, Hex. Hd., 1/2"-20 N.C. X 1 3/4"1
1T***34Ring-Lock1
1T***79Wheel-Turbine1
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8e-7594 Transmission Ar
12***98Kit-Gasket; (Transmission Oil Filter)1
12***99Kit-Gasket; (Planetary)1
12***00Kit-Gasket; (Output Transfer Gear)1
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107-6350 Universal Joint Gp
10***50Universal Joint Group1
10***51Plate1
1B***81Bolt Coupling To Shafts8
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Service Equipment And Supplies
104-2688 Film Gp
10***88Film Group1
10***53Film-Stripe; (Rh)1
10***54Film-Stripe; (Lh)1
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106-8259 Plate & Film Gp
10***59Plate & Film Group1
4P***22Film-Warning; (No Ether Spray/Air Intake)(Symbol)1
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104-2687 Plate & Film Gp
03***91Pop - Rivet (To Secure Safety Lable)4
10***87Plate & Film Group1
10***88Film Group1
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Steering And Braking System
108-4501 Brake Gp-Steering
09***87Bearing Bush1
10***92Plate2
10***97Plate2
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8y-5320 Case Gp-Steering Clutch
1B***64Spacer27
1B***70Plug-Pipe; (Drain)2
1B***26Bushing-Lever1
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8y-7019 Clutch Gp-Steering
01***71Setscrew-Socket; 7.93mm(.312in)Long4
0L***41Nut; (1-1/2-12-Thd)(Spl)2
1H***78Ring (Internal)2
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104-4438 Control Gp-Steering Clutch
03***47Elbow-Filtered Fuel From Based Assembly2
0S***23Bolt (.50 In. Diameter)2
0T***55Lock-Clutch Screw4
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Undercarriage
7g-4831 Cap Gp-Track Roller
1B***67Bolt, Hex. Hd., 5/8"-11 N.C. X 3"2
5P***47Washer (Bracket To Valve Support)2
7G***29Cap-Track Roller1
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8y-1799 Frame Gp-Track Roller
6S***42Strip-Wear4
7X***25Bolt (1/2) (63.5mm Thick)4
8T***23Washer-Hard; (13.5x25.5x3-mm Thk)(Bolt To Shield)12
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8y-7165 Guard Gp-Recoil Mechanism
1F***50Nut Rops Support6
5P***75Washer-Hard; (10.2x22.5x3-mm Thk)(Shield To A/C)42
5P***41Plate-Warning; (High Pressure, Read Omm)2
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136-8527 Guard Gp-Track Roller
13***27Guard Group-Track Roller1
13***34Guard As; (Rh Inner/Lh Outer)2
13***35Guard As; (Lh Inner/Rh Outer)2
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8y-8918 Guard Gp-Track Roller
4L***54Capscrew; (3/8-16x21 In) (Gd8) (Hex Hd) (4-Roller)4
6V***88Nut-Full (1/2-13 Thd); (1/2-13-Thd)(Full)4
8S***87Bolt; (1/2-13x11-In)4
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8y-5636 Guard Gp-Track Roller
4L***54Capscrew; (3/8-16x21 In) (Gd8) (Hex Hd) (4-Roller)8
6V***88Nut-Full (1/2-13 Thd); (1/2-13-Thd)(Full)10
8S***87Bolt; (1/2-13x11-In)10
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8y-5049 Idler Gp-Front
12***55Adjuster As; (Rh)1
12***56Adjuster As; (Lh)1
1B***67Washer; (13.5x50.8x11.1-mm Thk)2
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6i-9527 Link As-Track
16***16Pin-Track37
25***00Seal As74
5G***47Stopper; (Rubber)37
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6k-9880 Roller Gp-Track Carrier
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold3
1H***96Packing,Preformed Cartridge Part Of Kit P/N 4j***801
1M***97Ring-Sealing2
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124-8240 Roller Gp-Track-Double Flange
12***40Roller Group-Track-Double Flange1
12***41Rim As-Double Flange1
12***48Bushing Assem.2
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124-8237 Roller Gp-Track-Single Flange
12***37Roller Group-Track-Single Flange1
12***38Rim As-Single Flange1
12***48Bushing Assem.2
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8y-5079 Support Gp-Undercarriage
6K***87Dowel4
8T***94Washer; (3/4 Hardened) (Current Adapters)36
8T***24Bolt-Plt; (3/4unc X 2 1/2)20
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102-3589 Track Gp
10***87Shoe-Track37
10***89Track Group1
1M***08Nut-Track144
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102-3586 Track Gp -2 Required
10***85Shoe-Track37
10***86Track Group; -2 Required1
1M***08Nut-Track144
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7g-4837 Roller Gp-Track-Double Flange
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly12
1H***27Seal 10.1 cm(3.984 In.) I.D.2
2P***01Bolt Oil Filler Mounting; Used On Replacement Engine P/N 5r***8312
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7g-4836 Roller Gp-Track-Single Flange
09***78Pin-Spring4
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly12
1H***27Seal 10.1 cm(3.984 In.) I.D.2
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Work Tools
6i-9250 Adapter-Tip
6i-9251 Adapter-Tip
8y-8260 Bucket Ar-Multipurpose
3G***65Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket2
6S***05Mounting Group-Cylinder; Cylinder Mounting Group1
8Y***60Bucket Ar-Multipurpose1
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8y-8263 Bucket As-General Purpose
10***91Boss4
4V***44Corner-Rh; (R.H.)1
4V***45Corner-Lh; (R.H.)1
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8y-8261 Bucket Gp-Multipurpose
10***16Bowl As1
10***55Bulldozer As1
2D***67Fitting-Grease; (Fan Drive)2
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6i-8311 Corner
6I***11Corner1
6I***13Corner; (Cast, Rh)(Casting)1
6I***15Corner; (Forged, Rh)(Forging)1
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6i-8310 Corner
6I***10Corner-Lh1
6I***12Corner; (Cast, Lh)1
6I***14Corner; (Forged, Lh)1
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105-2082 Edge Gp-Bit & Cutting
10***59Edge-Cutting; (9.14m)2
10***82Edge Group-Bit & Cutting1
1J***07Bolt 6.99cm (2.75 In.) Long10
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6y-7240 Edge Gp-Segment
1J***07Bolt 6.99cm (2.75 In.) Long14
2J***07Nut-Full; (1-8 X38.1 Thd)14
4T***92Segment Edge For Use With 4v***50 Base7
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8j-3294 Mounting Gp-Ripper
1J***48Pin (.50" Diameter)3
3B***27Cotter (Not Shown)3
4F***42Pin1
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9j-9005 Ripper Ar
5P***91Plate & Film Group1
6S***59Lines Group-Ripper; Ripper Lines Group1
7J***20Cylinder Group-Ripper1
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8j-0631 Ripper Ar
6S***59Lines Group-Ripper; Ripper Lines Group1
7J***20Cylinder Group-Ripper1
8J***31Ripper Ar1
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8j-3334 Ripper Gp
1J***48Pin (.50" Diameter)1
3B***27Cotter (Not Shown)1
8J***26Pin1
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9j-3169 Tip Gp-Long
13***63Pin-G.E.T.1
14***33Retainer As; (G.E.T.)1
1U***52Tip (Long)1
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9j-3178 Tip Gp-Short
13***63Pin-G.E.T.1
14***33Retainer As; (G.E.T.)1
1U***51Tip (Short)1
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8j-5313 Tooth Gp-Ripper
1U***02Tip-Penetration; (Long)1
3B***32Cotter; (Pin)2
6B***64Pin1
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3g-4017 Tooth Gp-Long
1U***57Adapter-Strap6
3G***17Tooth Group-Long1
3G***58Adapter-Strap; (Lh)1
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3g-4018 Tooth Gp-Short
1U***57Adapter-Strap6
3G***18Tooth Group-Short1
3G***58Adapter-Strap; (Lh)1
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6i-8389 Tooth-Uni -Rh
6i-8388 Tooth-Uni

939 serial number reference

The product identification (PIN) plate on the 939 / 939C sits on the left side of the machine, on the support arm ahead of the cab. Read the first three characters as the serial number prefix — it ties to the specific machine, engine, or attachment arrangement and plant of manufacture — followed by a sequential unit number; on 2001-and-later units that whole string is embedded inside the longer 17-character PIN.

PrefixIdentifies
9GLCat 939 track-type loader, power shift transmission (PS-TC, torque converter, planetary 3F/3R)
6DSCat 939C track-type loader, Hystat (hydrostatic drive)
5XK3046T diesel engine fitted to the 939 / 939C family
1DXAttachment/ripper-arrangement prefix listed with the power shift 939 parts documentation
21GRipper arrangement fitted to the 939C Hystat

Frequently asked questions

What engine does the Caterpillar 939 use?

Both the base 939 and the 939C Hystat run the Caterpillar 3046T, a turbocharged 6-cylinder diesel rated at roughly 67 kW (90 hp) at 2400 rpm. The engine carried over unchanged when the drivetrain switched from powershift to Hystat in 1997.

What is the operating weight of the Caterpillar 939?

Operating weight runs roughly 9,484-9,816 kg (20,900-21,640 lb) depending on bucket and configuration. Some documented builds with heavier buckets trend closer to 10,030 kg, so treat the figure as a range that varies by configuration and series rather than a single fixed number.

What replaced the Caterpillar 939?

Caterpillar replaced the powershift 939 with the 939C Hystat in 1997. The 939C kept the same 3046T engine but switched to a dual-path hydrostatic drivetrain with single-joystick control of speed, direction and steering. No further 939-badged model followed the 939C generation.

What 939 owners discuss

What powertrain does the Cat 939 use, and how does it behave under load?
The early 939 (introduced 1994) uses a powershift transmission. Around 1997 Caterpillar replaced it with the 939C Hystat, a dual-path closed-loop hydrostatic drive with a single joystick for speed, direction, and steering. Owners of the Hystat machine report it will bog down and lose ground speed when driving hard into a pile - backing off the control keeps the engine from lugging and still fills the bucket. A known drivetrain failure point on the Hystat units is the coupling between the front and rear hystat drive pump; if it shears or slips, the machine loses propel power. If you notice sudden or partial loss of drive power, have your dealer verify the pump coupling condition before assuming a bigger pump failure.
What engine is in the Cat 939, and are there quirks to watch for?
Both the base 939 and the 939C are built around Caterpillar's 3046 inline six-cylinder diesel, Japan-built; the 939C's engine is turbocharged (3046T) and rated around 90 hp (67 kW) at 2400 rpm. Whether every early base-939 unit ran naturally aspirated or turbocharged isn't consistent across listings, so confirm induction type off the data plate rather than assume. Multiple owners describe the 939 line as light on power for its weight class and quick to run hot in sustained digging compared to newer excavator-style loaders. Keep the radiator and oil cooler fins clean and airflow unobstructed, and don't dismiss recurring heat complaints as just a bad thermostat without checking the whole cooling package.
What wear patterns are typical on the 939's undercarriage and loader linkage?
The bucket tipping links are a known weak point - they can bend under heavy digging loads, and cracked paint on the links is an early warning sign before a visible bend shows up, worth checking on any prospective purchase. Sprocket teeth wearing to a hooked or pointed profile accelerates track chain wear, so replace sprockets and chain together rather than pairing new track with worn sprockets. The 939C added sealed and lubricated track pins that cut down on pin-and-bushing wear versus the earlier chain design, which is worth factoring in when comparing undercarriage condition between a base 939 and a 939C.
What electrical or sensor issues come up on the 939C?
A recurring owner complaint is intermittent power loss under load - engine RPM sags and the machine loses power for roughly 10 to 20 seconds, sometimes stalling outright. Several owners trace this to an oil level or pressure sensor circuit rather than a true oil problem, since topping up oil sometimes lets the machine restart even when the sump wasn't actually low - a sign the fault sits in the sensor or its wiring, not the bottom end. Treat repeat stalling as a sensor/harness diagnosis first. Have your dealer verify the oil sensor and wiring before assuming engine damage.
What should I check when looking at a used Cat 939?
Confirm which drivetrain you're buying - powershift (older 939) or Hystat hydrostatic (939C) - since parts and service procedures differ between them. Inspect the bucket tipping links closely for bends or cracked paint. Cycle the loader arms and steering through full range and watch for lag, RPM sag, or the machine struggling when propel and hydraulics are used together, which points to pump or coupling wear. Check track and sprocket wear as a pair; a pointed sprocket tooth profile means the chain is due for replacement too. Watch exhaust smoke color at startup and under load - black, blue, or gray smoke signals engine trouble - and ask for maintenance records if available. These machines are older across the board now, so weigh service history more heavily than the hour meter alone.
What's the overall reputation of the 939 among owners?
Opinions split. Some owners call it a nice, fast, nimble machine well suited to site leveling and light grading. Others describe it as underpowered for its size, quick to overheat, and lighter on hydraulic muscle than they expected, and say it doesn't float well in soft or wet ground. For muck or pond-adjacent work, several owners prefer the hydrostatic 939C over the powershift base 939 because it handles low-traction going better. For heavier digging or loading, forum regulars generally suggest stepping up to a larger track loader in the lineup rather than pushing a 939 past its comfort zone.

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

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