Caterpillartrack-type loaderbulldozer
Caterpillar 955
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 955 is a track-type loader, marketed under Cat's Traxcavator name, built by mounting a hydraulic loader arm and bucket on a crawler tractor chassis. The original 955 (12A-prefix serials) ran 1954-1960 on a D4-derived 7U chassis with the naturally aspirated Cat D315 four-cylinder diesel, in the 70 hp class, at an operating weight around 9.7 tonnes (21,480 lb). Caterpillar carried the line forward as the 955H (1960 into the mid-1960s, turbocharged D330, roughly 100-115 hp depending on model year, about 11.3 tonnes / 24,950 lb), the 955K (1966-1971, turbocharged D330, 115 flywheel hp, around 12.7 tonnes / 28,000 lb), and the 955L (1971 into the late 1970s, turbocharged D330 or 3304, 130 hp, roughly 13.7-15.9 tonnes / 30,200-34,950 lb). Bucket capacities across the series ran from about 1.3 to 1.75 m3 (1.7-2.25 cu yd) in general-purpose and multi-purpose configurations.
Across the series the 955 grew heavier, more powerful and more automated: steering moved from clutch-and-brake control on the earliest 12A machines to pedal-actuated powershift steering on the 955H/K/L, and the engine progressed from the naturally aspirated D315 to turbocharged D330 variants and finally the direct-injection 3304 block shared with other Cat machines of the era. Every 955-series machine is fully mechanical, with no ECM or electronic fault codes; diagnosis relies on gauge readings, compression and injector pop-off checks, and manual timing procedures, which is exactly why a disciplined interval schedule matters more on this machine than on later electronically monitored loaders. In the used and parts market the 955 line is now largely a vintage/restoration platform: undercarriage, steering-clutch and engine wear parts are still supported through aftermarket channels, but parts are not interchangeable across engine generations, so confirming series and engine identity from the serial prefix before ordering is essential.
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 955 specifications
Identity & Generations
| Machine type | Track-type loader (Traxcavator), not a bulldozer — no blade options; front-mounted bucket only. |
| Lineage | Original 955 (12A prefix, 1955-1960) built on a D4 7U tractor chassis. Followed by 955H (1960-1966/67), 955K (1966-1971), and 955L (1971/1978-on). Model-number reuse pattern: each letter suffix is a distinct engine/drivetrain generation, not a trim option. Do not blend specs across generations — later 955C/955H/955K/955L data is kept separate below and labeled by generation. |
| Serial prefixes | 12A = original 955 (1955-1960). 60A-family and related early-60s prefixes = 955H. Mid/late-60s prefixes (through 1971) = 955K. 43V, 64J, 71J, 85J, 08Y (French-built), 13X = 955L. |
Engine — by generation
| 955 (1955-1960) | Cat D315, 4-cylinder, naturally aspirated diesel, approx. 70 hp (52 kW) flywheel per period sources; wet main clutch with dry steering clutches, standard-shift transmission (no torque converter/powershift). |
| 955H (1960-1966/67) | Cat D330T, 4-cylinder turbocharged diesel, 4.5 in (114 mm) bore, rated 100 hp (75 kW). |
| 955K (1966-1971) | Cat D330T (2236 engine family), 4-cylinder turbocharged diesel, displacement 7.0 L (427.2 cu in), rated 115 hp / 85.8 kW at 2185 rpm. |
| 955L (1971/1978 on) | Cat D330, 4-cylinder turbocharged diesel, displacement 7.0 L (427.2 cu in), net power 130 hp (96.9 kW). The D330 designation is the same engine family later cataloged under Cat's 3-digit numbering as the 3304; sources use both names for 955L-era engines — confirm actual engine tag against the machine's data plate before ordering parts. |
| Emissions | Pre-emissions-regulation mechanical diesels throughout the 955 line; no EPA/EU emissions tier applies to any generation. |
Weights — by generation
| 955, 1955-1957 models | 9,525 kg (21,000 lb) shipping weight. |
| 955, 1958-1959 models | 10,192 kg (22,470 lb) shipping weight — heavier undercarriage than the 1955-57 run. |
| 955H | 11,317 kg (24,950 lb) operating weight. |
| 955K | 12,701 kg (28,000 lb) operating weight. |
| 955L | 13,700 kg (30,203 lb) operating weight with standard bucket; reported up to approx. 13,790 kg (30,400 lb) with the larger 1.7 m3 (2.25 yd3) bucket fitted — weight varies by bucket/configuration. |
Dimensions — by generation
| 955 bucket dimensions | Bucket width 2.03 m (6 ft 8 in); dumping height 3.25 m (10 ft 8 in); dumping clearance 2.53 m (8 ft 3-3/4 in); bucket carry angle approx. 51.5 degrees. |
| 955H overall size | Length 4.80 m (15 ft 9 in) x width 1.91 m (6 ft 3 in) x height 2.64 m (8 ft 8 in). |
| 955K overall size | Length with bucket on ground 5.00 m (16.41 ft); width across tracks 2.06 m (6.76 ft); height to cab top 2.26 m (7.42 ft); ground clearance 0.41 m (1.35 ft); track length on ground 2.34 m (7.68 ft). |
| 955K undercarriage | Track gauge 1.68 m (66.15 in); track shoe width 380 mm (14.97 in); 41 shoes per side; 6 track rollers per side; ground contact area approx. 1.78 m2 (2,760 in2) per side pair. |
| 955L overall size | Length with bucket on ground 4.95-4.97 m (16.2-16.4 ft) — figure varies slightly by source; width across tracks 2.16 m (7.10 ft); height to cab top 2.29-2.32 m (7.5-7.6 ft); ground clearance approx. 0.42 m (1.37 ft); track length on ground 2.36 m (7.75 ft). |
| 955L undercarriage | Track gauge 1.68 m (66.15 in); track shoe width 380 mm (15.0 in) — same undercarriage envelope as 955K. |
Performance
| 955H travel | 2-speed powershift transmission with high/low range, giving 4 speeds forward and 4 reverse; oil-cooled clutches and brakes. |
| 955K travel | 3-speed powershift transmission with torque converter and pedal steer; maximum travel speed 11.3 km/h (7 mph). |
| 955L travel | 2-range, 3-speed powershift transmission; maximum travel speed 11.4 km/h (7.1 mph). |
| Ground pressure | Not published directly by the factory spec sheets for this loader line. Using 955K's reported operating weight and ground contact area, calculated ground pressure is approximately 0.71 kg/cm2 (10.1 psi) — treat as a derived estimate, not a quoted factory figure, and verify against the specific undercarriage/shoe width fitted. |
| Drawbar pull | Not published for the 955/955H/955K/955L Traxcavator series in available spec sheets — these are loader-only publications (breakout force and static tipping load are given instead of dozer-style drawbar-pull curves). |
| 955L breakout force | Standard bucket breakout force approx. 10,401 kg (22,930 lb / 102 kN), folded/curled position. |
| 955L static tipping load | Approx. 8,440 kg (18,607 lb). |
| 955L hydraulic cycle times | Bucket raise approx. 6.6 sec; dump approx. 1.6 sec; lower (power-down) approx. 3.2 sec. |
Bucket capacities — by generation
| 955 (1955-1960) | 1.15 m3 (1.5 yd3) standard bucket. |
| 955H | 1.34 m3 (1.75 yd3) — both the standard general-purpose bucket and the multi-purpose 4-in-1 bucket were offered at this same rated capacity. |
| 955K | 1.2 m3 (1.5 yd3) struck, 1.4 m3 (1.8 yd3) heaped. |
| 955L | 1.3 m3 (1.7 yd3) struck, 1.6 m3 (2.1 yd3) heaped; a larger 1.7 m3 (2.25 yd3) bucket option is also referenced in dealer listings. |
| Blade/dozer attachments | No dozer blade (S/SU/A/VPAT) options documented for this model line — the 955 family is a bucket loader, not a dozer chassis. |
Service capacities — by generation
| 955 (12A, 1955-1960) | Fuel tank approx. 113.6 L (30 US gal); crankcase (engine oil) approx. 18.9 L (5 US gal); transmission approx. 17.0 L (4.5 US gal); final drive, each side, approx. 6.6 L (1.75 US gal); cooling system approx. 41.6 L (11 US gal). |
| 955K | Fuel tank approx. 216 L (57.1 US gal); hydraulic system approx. 98 L (25.9 US gal); cooling system approx. 42 L (11.1 US gal); engine oil approx. 18.9 L (5 US gal); final drive, each side, approx. 9.8 L (2.6 US gal). |
| 955L | Fuel tank approx. 238 L (62.9 US gal). Cooling system is reported at approx. 148 L (39.1 US gal) in one spec aggregator — this is markedly larger than the 955K figure on what is otherwise the same engine platform, so treat the 955L cooling-capacity number as unconfirmed and verify against the machine's own service manual before use. Engine oil and hydraulic system capacities were not found published separately for 955L; likely close to 955K figures given the shared D330 platform, but not confirmed — verify with dealer or service manual. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
955 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | approx. 19 L (5 US gal) | Cat 30W diesel engine oil above freezing; 10W below 32°F (0°C). Modern equivalent: Cat DEO SAE 15W-40. |
| Cooling system | approx. 42 L (11 US gal) | Water plus a permanent-type ethylene-glycol antifreeze/coolant at the mix ratio for expected ambient temperature. Cat-branded coolant/antifreeze equivalents are suitable. |
| Fuel tank | approx. 114 L (30 US gal) | Diesel fuel per engine spec plate; no special OEM additive documented for this series. |
| Powertrain (transmission, bevel gear and steering clutch compartment) | approx. 17 L (4.5 US gal) — this early D315-engine 12A-prefix series uses one combined power-train sump rather than the separately-listed transmission / bevel-gear / steering-compartment split seen on later 955K/955L generations | Cat 30W drive-train (transmission/steering-clutch) oil above 32°F (0°C); switch to 10W hydraulic/transmission oil below freezing. Modern equivalent: Cat TDTO SAE 30, or 10W TDTO in cold climates. |
| Final drive (each side) | approx. 6.6 L (1.75 US gal) per side | SAE 50 gear oil. Modern shelf equivalent commonly cited is an 80W-90 GL gear oil, or Cat TDTO SAE 50. |
| Hydraulic system/tank | Not confirmed for the D315-engine 12A-prefix base 955 — treat as unverified and check the data plate/dealer. (Later 955K/955L generations, which use a different engine and a split bevel-gear/steering compartment, are commonly cited around 148 L / 39 US gal — do not apply that figure to this earlier series.) | Cat 10W hydraulic oil above freezing; equivalent to an ISO 32 / AW32 hydraulic oil. Same climate split as the power-train system — heavier viscosity in warm weather, 10W in cold. |
| Pivot shaft | Not separately listed as a fluid-capacity line in available sourcing for this series — appears to be a grease point rather than a filled compartment | Cat Multipurpose grease (MPGM) at the standard service interval, same as other chassis grease fittings. |
| Grease (general chassis points) | N/A — grease gun application, not a fill capacity | Cat Multipurpose grease (MPGM) for track roller frame, control-shaft bearings, frame outer bearings, universal joints, governor control linkage, and steering clutch/brake pedal bearings. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 955 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the 955 beyond the schedule
Predictive Maintenance & Fluid Analysis
With no ECM on any 955-series machine, prediction means physical testing on a schedule, not sensor alerts. Pull an engine oil sample at every oil change to track D315/D330 wear metals and coolant intrusion, log compression readings each 1000 hours, and bench-test injectors for drift in pop-off pressure and spray pattern before they cause hard starting or smoke. Track torque converter stall speed on 955H/K/L powershift units over time; a falling stall speed flags internal converter wear long before it strands the machine in the field.
Corrective & Common Repairs
Common failure points trace straight to the powertrain and steering system. On the 12A-series direct-drive 955, worn steering clutch discs and glazed brake bands cause pull to one side and slow steering response. On 955H/K/L powershift units, watch for turbocharger shaft play, boost leaks at the manifold, and torque converter shift flare. Injector fouling from off-spec fuel is the most frequent cause of rough idle and black smoke on the D315 and D330 alike, and track pin/bushing turn from delayed adjustment is the most common undercarriage complaint.
Overhaul & Rebuild Points
Major rebuild work centers on three systems: the engine (liners, pistons, and main/rod bearings on the D315 or D330, typically by 4000 hours of hard service), the steering/powershift clutch packs (discs, bands, or the clutch pack assembly depending on series), and the undercarriage (roller frame, equalizer bar, and track components as a matched set rather than piecemeal). Rebuilding the torque converter alongside the transmission on 955H/K/L machines avoids mismatched wear between fresh and worn components after the rebuild.
Seasonal & Environment Servicing
Cold starts on these mechanical-injection engines depend on glow or ether-assist starting aids, a fully charged battery, and winter-grade fuel to avoid paraffin gelling in the D315/D330 fuel system; check block heaters and coolant antifreeze protection before freezing weather. In hot, dusty conditions shorten air cleaner and engine oil intervals and inspect the radiator core for packed debris. In muddy or wet ground, clear packed material from the track frame and rollers daily to prevent accelerated bushing and sprocket wear.
955 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1H-6517 | Transfer | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
955 attachments & work tools
Blades
The 955 was sold primarily as a bucket-equipped track-type loader; a dozer (blade) conversion of the same chassis was cataloged separately in the period as the 955A Bulldozer rather than as a bolt-on option list for the loader itself. Documentation available for this generation does not confirm which specific blade profile letter-codes (S/SU/A) applied to the 955A — verify against the parts book for the exact serial range before ordering blade components. VPAT (variable pitch/angle/tilt) blade technology is a later Caterpillar development and does not apply to this generation.
Rippers
Ripper attachments for the 955 use a multi-shank parallelogram frame on a single lift cylinder, commonly built with three to five shanks depending on ground conditions; a four-shank configuration is specifically documented for this machine. The same ripper family is shared with the 951B/951C track loaders and the D4D/D4E dozers, reflecting a common D4-class chassis mount — single-shank rippers are a heavier-dozer-class item and are not documented for the 955. Shipping/frame weights vary by source; confirm against the parts book for the serial range in question.
Winches
A rear-mounted towing winch is documented as a factory-style option on the later 955L Traxcavator. Earlier 60A/72A/77A-prefix 955 machines share the same rear-frame drawbar/counterweight mounting provision, making a comparable winch fitment plausible for the base 955, but a specific winch model tied to the base machine is not confirmed in available documentation — verify against the parts book for the exact serial range.
Drawbars/counterweights
A rear drawbar is documented for the early 60A-prefix serial range, with a bolt-on counterweight group specified for rough-ground or unbalanced-load work. The drawbar/counterweight assembly is removable, freeing the rear frame to accept either a ripper or a winch instead — these three rear attachments are mutually exclusive at the single rear mount.
Cab/ROPS guarding
A factory ROPS and cab/guard arrangement, including a hood and guard group, is documented for the later 955L. The earlier D315/D330-powered 955 predates industry-wide ROPS adoption (which became standard through the 1970s) and was typically sold with an open operator station. No factory forestry or waste-handling guarding package is documented for this model for any generation; brush/forestry screen guarding available in the aftermarket is bolt-on only and is not FOPS/ROPS-certified unless the manufacturer states otherwise.
Hydraulic arrangement
The base loader circuit runs bucket lift and tilt off engine-driven pump flow through lever-operated valve sections at the operator's station. When a rear tool such as a ripper or winch is fitted alongside the front bucket, machines of this chassis class commonly use a diverter valve or an added rear valve section tapped off the same pump circuit, letting the operator switch flow between the loader and the rear implement rather than running both at once. The exact valve-bank layout for the base 955 is not detailed in available documentation — confirm against the hydraulic schematic for the specific serial range.
All 955 assemblies by section
Every catalogued assembly group for the Caterpillar 955. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Attachments
6h2937 Battery And Wiring Group--24 Volt--Type 2
| 6H***37 | Battery And Wiring Group | 1 |
6h2937 Battery And Wiring Group--24 Volt-Type 1
| 6H***37 | Battery And Wiring Group | 1 |
6h2937 Battery And Wiring Group--24 Volt--Type 3
| 6H***37 | Battery And Wiring Group | 1 |
9h450 Brake Control Group--Field Installation
| 9H***50 | Brake Control Group | 1 |
3k142 Bucket And Support Group--1 5/8 Cu. Yd. Capacity--96" Wide--Type 2
| 3K***42 | Bucket And Support Group | 1 |
3k142 Bucket And Support Group--1 5/8 Cu. Yd. Capacity--96" Wide--Type 1
| 3K***42 | Bucket And Support Group | 1 |
2k6490 Bucket And Support Group--1 5/8 Cu. Yd. Capacity--96" Wide
| 2K***90 | Bucket And Support Group | 1 |
4k8801 Bucket Assembly--2 Cubic Yard--80" Wide
| 4K***01 | Bucket Assembly | 1 |
2k4286 Bucket Assembly--2 Cu. Yd.--80" Wide
| 2K***86 | Bucket Assembly | 1 |
2k4340 Bucket Assembly--1.1 Cu. Yd.--60" Wide
| 2K***40 | Bucket Assembly | 1 |
2k6543 Bucket Positioner Group
| 2K***43 | Bucket Positioner Group | 1 |
2k4371 Bulldozer Group--90" Wide
| 2K***71 | Bulldozer Group | 1 |
4k1888 Carriage And Clamp Group
| 4K***88 | Carriage And Clamp Group | 1 |
2k7560 Carriage And Clamp Group
| 2K***60 | Carriage And Clamp Group | 1 |
7f2921 Combination Switch
| 7F***21 | Combination Switch | 1 |
2k6060 Control Valve Assembly
| 2K***60 | Control Valve Assembly | 1 |
2k5638 Control Valve Assembly
| 2K***38 | Control Valve Assembly | 1 |
2k5414 Counterweight Group--950 Pounds
| 2K***14 | Counterweight Group | 1 |
9h5471 Cover Group
| 9H***71 | Cover Group | 1 |
7h2157 Cover Group
| 7H***57 | Cover Group | 1 |
Crankcase Guard
4k501 Cylinder Group--Top View--R.H.
| 4K***01 | Cylinder Group; Cylinder Group-- R.H. | 1 |
2k6276 Cylinder Group--4.50" Bore X 18.63" Stroke--Type 2
| 2K***76 | Cylinder Group | 1 |
1k8206 Cylinder Group--5" Bore X 13.97" Stroke--Type 3
| 1K***06 | Cylinder Group | 1 |
8j5697 Cylinder Group (9k3164 N/S) (Chg. 0)--4" Bore X 18.625" Stroke
| 8J***97 | Cylinder Group | 1 |
4k501 Cylinder Group--Top View--R.H.--Type 2
| 4K***01 | Cylinder Group; Cylinder Group-- R.H. | 1 |
2k6276 Cylinder Group--Type 1
| 2K***76 | Cylinder Group | 1 |
4k502 Cylinder Group--Top View--L.H.--Type 2
| 4K***02 | Cylinder Group; Cylinder Group-- L.H. | 1 |
2k6841 Cylinder Group--4" Bore X 18.625" Stroke
| 2K***41 | Cylinder Group | 1 |
1k8206 Cylinder Group--5" X 13.97"--Type 2
| 1K***06 | Cylinder Group | 1 |
2k7557 Cylinder Group--4.5" X 14"
| 2K***57 | Cylinder Group | 1 |
1k8206 Cylinder Group--5" X 13 31/32"
| 1K***06 | Cylinder Group | 1 |
4k502 Cylinder Group--Top View--L.H.
| 4K***02 | Cylinder Group; Cylinder Group-- L.H. | 1 |
1f7164 Dash Lamp Assembly--6 Volt
| 1F***64 | Dash Lamp Assembly | 1 |
4h5678 Dash Lamp Assembly--24 Volt
| 4H***78 | Dash Lamp Assembly | 1 |
9h6333 Dash Lamp Assembly--6 Volt
| 9H***33 | Dash Lamp Assembly | 1 |
9f740 Discharger
| 9F***40 | Discharger Group | 1 |
Effective With Serial No. 12a3888
| 1H***56 | Wrench--Glow Plug; Wrench- Glow Plug | 1 |
| 1K***85 | Washer--Between Bellcrank And Ring | 1 |
| 1M***48 | Plate--Starting Instructions; Plate- Starting Instructions | 1 |
9h5435 Electric Starting Arrangement--24 Volt
| 9H***35 | Electric Starting Arrangement | 1 |
| 9H***60 | Electric Starting Arrangement | 1 |
| 9H***61 | Electric Starting Arrangement | 1 |
9h9861 Electric Starting Arrangement--24 Volt
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 3 |
9h9860 Electric Starting Arrangement--24 Volt
| 1H***56 | Wrench--Glow Plug; Wrench- Glow Plug | 1 |
| 2H***79 | Wrench--Injection Valve Retainer Nut | 1 |
| 3H***27 | Wrench (1 1/8" Opening) | 1 |
2m2936 Electric Starting Arrangement--24 Volt
| 2M***92 | Electric Starting Arrangement | 1 |
| 2M***36 | Electric Starting Arrangement | 1 |
| 9H***61 | Electric Starting Arrangement | 1 |
4h9400 Electric Starting Arrangement--24 Volt
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 3 |
6h9164 Electric Starting Arrangements--24 Volt
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 3 |
5h9496 Electric Starting Motor Group--24 Volt--Type 1
| 5H***96 | Electric Starting Motor Group; Starting Motor Group | 1 |
5h9496 Electric Starting Motor Group--24 Volt--Type 2
| 5H***96 | Electric Starting Motor Group; Starting Motor Group | 1 |
6h9311 Ether Starting Aid Group--For Field Installation
| 6H***11 | Ether Starting Aid Group | 1 |
6h8344 Ether Starting Aid Group
| 6H***44 | Ether Starting Aid Group | 1 |
5h4807 Exhaust Rain Trap Group--Starting Engine
| 5H***07 | Exhaust Rain Trap Group | 1 |
6f6522 Exhaust Rain Trap Group--Diesel Engine
| 6F***22 | Exhaust Rain Trap Group | 1 |
1m3030 Field Conversion Track Group--Special Application
| 0S***07 | Bolt 12.70 mm(5 In.) Long | 2 |
| 1B***07 | Nut 1.6 cm(.64 In.) Thick | 2 |
| 1M***27 | Track Roller Assembly--Double Flange | 6 |
1m5895 Flood Lamp Assembly--6 Volt
| 1M***95 | Flood Lamp Assembly | 1 |
Frame
4k325 Frame And Clamp Group--Side View
| 4K***25 | Frame And Clamp Group | 1 |
5k2001 Frame And Clamp Group--Side View--Type 1
| 5K***01 | Frame And Clamp Group | 1 |
5k2001 Frame And Clamp Group--Side View--Type 2
| 5K***01 | Frame And Clamp Group | 1 |
2k7162 Frame And Clamp Group
| 2K***62 | Frame And Clamp Group | 1 |
5k2001 Frame And Clamp Group--Side View--Type 3
| 5K***01 | Frame And Clamp Group | 1 |
4k466 Front Hydraulic Lines Group
| 4K***66 | Front Hydraulic Lines Group | 1 |
3k138 Front Hydraulic Lines Group
| 3K***38 | Front Hydraulic Lines Group | 1 |
2k7394 Front Hydraulic Lines Group--Type 2
| 2K***94 | Front Hydraulic Lines Group | 1 |
5k2130 Front Hydraulic Lines Group
| 5K***30 | Front Hydraulic Lines Group | 1 |
2k7394 Front Hydraulic Lines Group--Type 1
| 2K***94 | Front Hydraulic Lines Group | 1 |
4k2243 Front Idler Group--Field Installation
| 4K***43 | Front Idler Group | 1 |
3k2846 Front Idler Group-Type 2
| 3K***46 | Front Idler Group | 1 |
3k7132 Front Idler Group--Field Installation
| 3K***32 | Front Idler Group | 1 |
7h7995 Front Idler Group
| 7H***95 | Front Idler Group | 1 |
3k2846 Front Idler Group - Type 1
| 3K***46 | Front Idler Group | 1 |
2k5880 Front Lever Control Group--Type 3
| 2K***80 | Front Lever Control Group | 1 |
2k5880 Front Lever Control Group--Type 1
| 2K***80 | Front Lever Control Group | 1 |
2k5880 Front Lever Control Group--Type 2
| 2K***80 | Front Lever Control Group | 1 |
3b2665 Front Pull Hook Group
| 3B***65 | Front Pull Hook Group | 1 |
5h9876 Fuel Priming Pump Group
| 5H***76 | Fuel Priming Pump Group | 1 |
9f5094 Generator--6 Volt, 40 Ampere
| 9F***94 | Generator | 1 |
8h1963 Generator--6 Volt, 40 Ampere
| 8H***63 | Generator | 1 |
5h772 Generator--24 Volt, 18 Ampere
| 5H***72 | Generator | 1 |
8h1957 Generator Assembly--24 Volt, 18 Ampere
| 8H***57 | Generator Assembly | 1 |
2m6664 Generator Assembly--6 Volt, 40 Ampere
| 2M***64 | Generator Assembly | 1 |
5h4509 Generator Group--24 Volt, 18 Ampere--Type 4
| 5H***09 | Generator Group | 1 |
7h5193 Generator Group--6 Volt, 40 Ampere--Type 3
| 7H***93 | Generator Group | 1 |
7h5193 Generator Group--6 Volt, 40 Ampere--Type 2
| 7H***93 | Generator Group | 1 |
5h4509 Generator Group--24 Volt, 18 Ampere--Type 3
| 5H***09 | Generator Group | 1 |
7h5193 Generator Group--6 Volt, 40 Ampere--Type 1
| 7H***93 | Generator Group | 1 |
5h4509 Generator Group--24 Volt, 18 Ampere--Type 2
| 5H***09 | Generator Group | 1 |
5h4509 Generator Group--24 Volt, 18 Ampere--Type 1
| 5H***09 | Generator Group | 1 |
5h4509 Generator Group--24 Volt, 18 Ampere--Type 5
| 5H***09 | Generator Group | 1 |
4h9254 Glow Plug Group--24 Volt--Type 2
| 4H***54 | Glow Plug Group | 1 |
4h9254 Glow Plug Group--24 Volt--Type 1
| 4H***54 | Glow Plug Group | 1 |
4m8074 Glow Plug Group--24 Volt--Replaces 4h9254
| 4M***74 | Glow Plug Group | 1 |
4k354 Gusset Shoe Group
| 4K***54 | Gusset Shoe Group | 1 |
5h2067 Head Lamp--24 Volt
| 5H***67 | Head Lamp | 1 |
7f4625 Head Lamp--6 Volt
| 7F***25 | Head Lamp | 1 |
1m3377 Head Lamp Assembly--6 Volt
| 1M***77 | Head Lamp Assembly | 1 |
8h2504 Heavy Duty Track Roller Frame Arrangement
| 1M***01 | Track Group | 2 |
| 1M***58 | Support Assembly | 2 |
| 2F***57 | Track Carrier Roller Group | 2 |
2k6178 Hydraulic Control Arrangement Single Spool--35 U.S. Gallons Per Minute
| 2K***56 | Supply Lines And Valve Group | 1 |
| 2K***80 | Front Lever Control Group | 1 |
| 2K***53 | Side Hydraulic Lines Group | 1 |
2k6071 Hydraulic Control Arrangement Single Spool--35 U.S. Gallons Per Minute
| 2K***83 | Rear Hydraulic Lines Group | 1 |
| 2K***56 | Supply Lines And Valve Group | 1 |
| 2K***71 | Hydraulic Control Arrangement | 1 |
2k7644 Hydraulic Control Arrangements Double Spool--35 U.S. Gallons Per Minute
| 2K***46 | Supply Lines And Valve | 1 |
| 2K***68 | Lever Group | 1 |
| 2K***43 | Hydraulic Lines Group | 1 |
4k478 Hydraulic Front Lines Group--Type 2
| 4K***78 | Hydraulic Front Lines Group; Front Hydraulic Lines Group | 1 |
4k478 Front Hydraulic Lines Group--Type 3--Part 1 Of 2
| 4K***78 | Hydraulic Front Lines Group; Front Hydraulic Lines Group | 1 |
4k478 Front Hydraulic Lines Group--Type 3--Part 2 Of 2
| 4K***78 | Hydraulic Front Lines Group; Front Hydraulic Lines Group | 1 |
2k7551 Hydraulic Lines Group--Front--Type 1
| 2K***51 | Hydraulic Lines Group | 1 |
2k7643 Hydraulic Lines Group
| 2K***43 | Hydraulic Lines Group | 1 |
2k7551 Hydraulic Lines Group--Front--Type 2
| 2K***51 | Hydraulic Lines Group | 1 |
4k2589 Hydraulic Lines Group--Front
| 4K***89 | Hydraulic Lines Group; Hydraulic Lines Group-- Front | 1 |
3k311 Hydraulic Lines Group--Front--Type 1
| 3K***11 | Hydraulic Lines Group | 1 |
2k6238 Hydraulic Lines Group--Front
| 2K***38 | Hydraulic Lines Group; Front Hydraulic Lines Group | 1 |
1m1882 Flood Lamp Assembly--24 Volt
| 1M***82 | Lamp Group | 1 |
9h6338 Dash Lamp Assembly--24 Volt
| 9H***38 | Lamp Group-Dash | 1 |
2k6868 Lever Group
| 2K***68 | Lever Group | 1 |
2k6591 Lever Group
| 2K***91 | Lever Group | 1 |
6h3976 Lighting System Group--6 Volt--4 Lamp--Type 3
| 6H***76 | Lighting System Group | 1 |
6h3976 Lighting System Group--6 Volt--4 Lamp--Type 5
| 6H***76 | Lighting System Group | 1 |
6h3976 Lighting System Group--6 Volt--4 Lamp--Type 1
| 6H***76 | Lighting System Group | 1 |
6h4019 Lighting System Group--24 Volt--4 Lamp-Type 2
| 6H***19 | Lighting System Group | 1 |
6h3976 Lighting System Group--6 Volt--4 Lamp--Type 4
| 6H***76 | Lighting System Group | 1 |
6h4019 Lighting System Group--24 Volt-Type 1
| 6H***19 | Lighting System Group | 1 |
6h3976 Lighting System Group--6 Volt--4 Lamp--Type 2
| 6H***76 | Lighting System Group | 1 |
2k4714 Logging Fork Arrangement
| 2K***14 | Logging Fork Arrangement | 1 |
5k3020 Logging Fork Group
| 5K***20 | Logging Fork Group | 1 |
2k8969 Logging Fork Group
| 2K***69 | Logging Fork Group | 1 |
4k1777 Logging Fork Group
| 4K***77 | Logging Fork Group | 1 |
5h5565 Magnetic Switch
| 5H***65 | Magnetic Switch | 1 |
7h6700 Magnetic Switch Assembly
| 7H***00 | Magnetic Switch Assembly | 1 |
5h455 Electric Starting Motor--24 Volt
| 5H***55 | Motor-Electric Starting | 1 |
8b8205 Muffler Group--Diesel Engine
| 8B***05 | Muffler Group | 1 |
4k1910 Pulpwood Fork Arrangement--Low Profile
| 2K***57 | Cylinder Group | 1 |
| 4K***88 | Carriage And Clamp Group | 1 |
| 4K***10 | Pulpwood Fork Arrangement | 1 |
2k7629 Pulpwood Fork Arrangement
| 2K***51 | Hydraulic Lines Group | 1 |
| 2K***57 | Cylinder Group | 1 |
| 2K***60 | Carriage And Clamp Group | 1 |
2k4711 Quarry Bucket Group (1 1/2 Cu. Yd.)--80" Wide
| 2K***11 | Quarry Bucket Group | 1 |
2k5483 Rear Hydraulic Lines Group
| 2K***83 | Rear Hydraulic Lines Group | 1 |
6h9406 Regulator--24 Volt, 18 Ampere
| 6H***06 | Regulator | 1 |
7f4702 Regulator--6 Volt, 40 Ampere
| 7F***02 | Regulator | 1 |
4h7946 Regulator--24 Volt, 18 Ampere
| 4H***46 | Regulator | 1 |
7h4150 Regulator--6 Volt, 40 Ampere
| 7H***50 | Regulator | 1 |
6h9206 Regulator Assembly--6 Volt, 40 Ampere
| 6H***06 | Regulator | 1 |
9h6316 Regulator Assembly--6 Volt, 40 Ampere
| 9H***16 | Regulator Assembly | 1 |
9h6324 Regulator Assembly--24 Volt, 18 Ampere
| 9H***24 | Regulator Assembly | 1 |
2k6557 Side Dump Bucket Arrangement
| 2K***76 | Cylinder Group | 1 |
| 2K***90 | Bucket And Support Group | 1 |
| 2K***57 | Side Dump Bucket Arrangement | 1 |
3k143 Side Dump Bucket Arrangement
| 2K***76 | Cylinder Group | 1 |
| 3K***38 | Front Hydraulic Lines Group | 1 |
| 3K***42 | Bucket And Support Group | 1 |
2k6053 Side Hydraulic Lines Group
| 2K***53 | Side Hydraulic Lines Group | 1 |
2k6603 Side Lever Control Group
| 2K***03 | Side Lever Control Group | 1 |
2k4706 Skeleton Rock Bucket Group (1 1/2 Cu. Yd.)--80" Wide
| 2K***06 | Skeleton Rock Bucket Group | 1 |
3b5498 Spark Arrester Group--Diesel Engine
| 3B***98 | Spark Arrester Group | 1 |
3k9588 Spill Plate Extension Group--Replaces 2k4831
| 3K***88 | Spill Plate Extension Group | 1 |
2k4831 Spill Plate Extension Group
| 2K***31 | Spill Plate Extension Group | 1 |
6h1228 Starting And Glow Plug Switch
| 6H***28 | Starting And Glow Plug Switch | 1 |
2k6146 Supply Lines And Valve--Type 1
| 2K***46 | Supply Lines And Valve | 1 |
2k6146 Supply Lines And Valve Group--Type 2
| 2K***46 | Supply Lines And Valve | 1 |
2k5656 Supply Lines And Valve Group
| 2K***56 | Supply Lines And Valve Group | 1 |
7h4160 Regulator Assembly--24 Volt, 18 Ampere
| 7H***60 | Switch As | 1 |
7h7290 Switch Assembly
| 7H***90 | Switch As-Disconnect | 1 |
1k9734 Tooth Group
| 1K***34 | Tooth Group | 1 |
2k4817 Tooth Group
| 2K***17 | Tooth Group | 1 |
2k4819 Tooth Group
| 2K***19 | Tooth Group | 1 |
2k4889 Tooth Group
| 2K***89 | Tooth Group | 1 |
2k7182 Top Clamp Arrangement
| 2K***38 | Hydraulic Lines Group; Front Hydraulic Lines Group | 1 |
| 2K***41 | Cylinder Group | 1 |
| 2K***62 | Frame And Clamp Group | 1 |
3k312 Top Clamp Arrangement
| 1K***06 | Cylinder Group | 2 |
| 3K***11 | Hydraulic Lines Group | 1 |
| 3K***12 | Top Clamp Arrangement | 1 |
5k1614 Top Clamp Arrangement
| 2K***41 | Cylinder Group | 1 |
| 5K***14 | Top Clamp Arrangement | 1 |
| 5K***01 | Frame And Clamp Group | 1 |
4k1259 Top Clamp Arrangement--Replaces 3k312
| 3K***65 | Top Clamp Group | 1 |
| 4K***78 | Hydraulic Front Lines Group; Front Hydraulic Lines Group | 1 |
| 4K***01 | Cylinder Group; Cylinder Group-- R.H. | 1 |
4k326 Top Clamp Arrangement
| 2K***41 | Cylinder Group | 1 |
| 4K***25 | Frame And Clamp Group | 1 |
| 4K***26 | Top Clamp Arrangement | 1 |
3k1665 Top Clamp Group
| 3K***65 | Top Clamp Group | 1 |
3k7962 Track Carrier Roller Group
| 3K***62 | Track Carrier Roller Group | 1 |
3k2845 Track Carrier Roller Group - Type 1
| 3K***45 | Track Carrier Roller Group | 1 |
3k2845 Track Carrier Roller Group-Type 2
| 3K***45 | Track Carrier Roller Group | 1 |
4k3759 Track Group--15" Triple Grouser Shoe--2 Required
| 4K***59 | Track Group | 1 |
4k5503 Track Group--15" Flat Center Shoe--2 Groups Required
| 4K***03 | Track Group | 1 |
4k7125 Track Group--15" Triple Grouser Shoe--2 Groups Required
| 4K***25 | Track Group | 1 |
5k4878 Track Group--15" Flat Center Shoe--2 Groups Required--Replaces 4k3760
| 5K***78 | Track Group | 1 |
3k7709 Track Group--15" Triple Grouser Shoe--2 Groups Required
| 3K***09 | Track Group | 1 |
5k4880 Track Group--15" Triple Grouser Shoe--2 Required
| 5K***80 | Track Group | 1 |
6k1720 Track Group--15" Triple Grouser Shoe--2 Required
| 6K***20 | Track Group | 1 |
4h9370 Track Group--15" Flat Center Shoe (2 Groups Required)
| 4H***70 | Track Group | 1 |
4k3760 Track Group--15" Flat Center Shoe--2 Required
| 4K***60 | Track Group | 1 |
4k4105 Track Group--15" Triple Grouser Shoe--2 Groups Required
| 4K***05 | Track Group | 1 |
4k223 Track Group--16" Grouser--2 Groups Required
| 4K***23 | Track Group | 1 |
5h4741 Track Group--15" Flat Shoe (2 Groups Required)
| 5H***41 | Track Group | 1 |
4k9333 Track Group--15" Flat Center Shoe--2 Groups Required
| 4K***33 | Track Group | 1 |
6h7596 Track Group--15" Triple Grouser Shoe--2 Required
| 6H***96 | Track Group | 1 |
4k7097 Track Link Assembly--2 Assemblies Required--Replaces 4k4074
| 4K***97 | Track Link Assembly | 1 |
1m9370 Track Roller Frame Arrangement-Special Application
| 1M***70 | Track Roller Frame Arrangement | 1 |
| 2D***29 | Transfer--Series C; Transfer -Series C | 1 |
| 2F***57 | Plate--To Solid Bar | 2 |
3k2844 Track Roller Frame Arrangement
| 2F***57 | Plate--To Solid Bar | 2 |
| 2K***47 | Bolt--Loader Frame To Solid Bar | 2 |
| 2K***29 | Transfer--Series C | 1 |
8h2501 Track Roller Frame Group
| 8H***01 | Track Roller Frame Group | 1 |
4h6300 Five Roller Track Roller Frame Group--Non-Oscillating
| 4H***00 | Track Roller Frame Group | 1 |
3k2779 Track Roller Group--Single Flange--4 Groups Required
| 3K***79 | Track Roller Group | 1 |
2k6179 Hydraulic Control Arrangements Double Spool--35 U.S. Gallons Per Minute
| 2K***83 | Rear Hydraulic Lines Group | 1 |
| 2K***80 | Front Lever Control Group | 1 |
| 2K***53 | Side Hydraulic Lines Group | 1 |
Bulldozer
2j1136 Blade Group
| 2J***36 | Blade Group | 1 |
9f2348 Blade Group
| 9F***48 | Blade Group | 1 |
2j1137 Brace Group
| 2J***37 | Brace Group | 1 |
3j854 Bulldozer Arrangement
| 3J***54 | Bulldozer Arrangement | 1 |
2k4725 Bulldozer Arrangement
| 2K***25 | Bulldozer Arrangement | 1 |
2j7145 Bulldozer Arrangement
| 2J***45 | Bulldozer Arrangement | 1 |
2j7144 C-Frame Group
| 2J***44 | C-Frame Group | 1 |
3j1552 C-Frame Group
| 3J***52 | C-Frame Group | 1 |
8f9866 Grease Gun--Type 2
| 8F***66 | Grease Gun As | 1 |
8f9866 Grease Gun--Type 1
| 8F***66 | Grease Gun As | 1 |
1f221 Hose Assembly
| 1F***21 | Hose Assembly | 1 |
7h3933 Hose Assembly
| 7H***33 | Hose Assembly | 1 |
Plate And Transfers
| 1H***38 | Transfer Safety First | 1 |
| 1H***17 | Transfer; --Lubricating Oil Filter Instructions | 1 |
| 3H***42 | Plate--Serial Number (Track Loader); On Bevel Gear & Steering Clutch Case--Upper Rear Of L.H. Side | 2 |
6h9835 Tool Group
| 6H***35 | Tool Group | 1 |
5h3016 Tool Group
| 5H***16 | Tool Group | 1 |
1m6981 Tool Group
| 1M***81 | Tool Group | 1 |
9s7977 Tool Group--Replaces 1m6981
| 9S***77 | Tool Group-Hand | 1 |
1j9166 Trunnion Group
| 1J***66 | Trunnion Group | 1 |
2k5118 Trunnion Group
| 2K***18 | Trunnion Group | 1 |
4b1856 Volume Compressor
| 4B***56 | Volume Compressor | 1 |
7h1680 Volume Compressor
| 7H***80 | Volume Compressor | 1 |
Clutch, Transmission And Chassis
Brakes
Dash And Floor Plates
4h8404 Drawbar Group
| 4H***04 | Drawbar Group | 1 |
Engine Support
4h5854 Engine Support Group
| 4H***54 | Engine Support Group | 1 |
Final Drive--Part 2 Of 2
Final Drive--Part 1 Of 2
Front Idler--Part 1 Of 2
Front Idler
Front Idler--Part 2 Of 2
Fuel Tank And Seat Support
Gear Shift And Flywheel Clutch Control--Part 1 Of 2
Gear Shift And Flywheel Clutch Control--Part 2 Of 2
Hood And Guard
5h568 Oil Flywheel Clutch Group--Front View--Part 2 Of 2
| 5H***68 | Oil Flywheel Clutch Group | 1 |
5h568 Oil Flywheel Clutch Group--Side View-Part 1 Of 2
| 5H***68 | Oil Flywheel Clutch Group | 1 |
5h568 Oil Flywheel Clutch Group--Front View-Part 2 Of 2
| 5H***68 | Oil Flywheel Clutch Group | 1 |
4h7498 Pump Group
| 4H***98 | Pump Group | 1 |
Seat Cushions
Steering Clutch
Steering Clutch Control--Top View--Part 2 Of 2
Steering Clutch Control--Side View -- Part 1 Of 2
2f1157 Track Carrier Roller Group--2 Groups Required
| 2F***57 | Track Carrier Roller Group | 1 |
6h8400 Track Carrier Roller Group--2 Groups Required
| 6H***00 | Track Carrier Roller Group | 1 |
1f3648 Track Carrier Roller Group--2 Groups Required
| 1F***48 | Track Carrier Roller Group | 1 |
2m7208 Track Carrier Roller Group--2 Groups Required
| 2M***08 | Track Carrier Roller Group | 1 |
3k3380 Track Group--15" Flat Center Shoe--2 Groups Required
| 3K***80 | Track Group | 1 |
1m1601 Track Group--15" Triple Grouser Shoe--2 Groups Required
| 1M***01 | Track Group | 1 |
8h1179 Track Group--15" Triple Grouser Shoe--2 Groups Required
| 8H***79 | Track Group | 1 |
3k7772 Track Group--15" Flat Center Shoe--2 Groups Required
| 3K***72 | Track Group | 1 |
4h8209 Track Group--15" Triple Grouser Shoe--2 Groups Required
| 4H***09 | Track Group | 1 |
Track Roller Frame
4h6300 Track Roller Frame Group
| 4H***00 | Track Roller Frame Group | 1 |
8h2502 Track Roller Frame Guard Group
| 8H***02 | Track Roller Frame Guard Group | 1 |
5h150 Track Roller Frame Guard Group
| 5H***50 | Track Roller Frame Guard Group | 1 |
5h6099 Track Roller Group--Single Flange--4 Groups Required
| 5H***99 | Track Roller Group | 1 |
4f3521 Track Roller Group--Single Flange--4 Groups Required
| 4F***21 | Track Roller Group; Track Roller Group- Single Flange | 1 |
1m3826 Track Roller Group--Single Flange--4 Required
| 1M***27 | Track Roller Group; Track Roller Group- Double Flange | 1 |
Transmission Case And Covers--Part 1 Of 2
Transmission Case And Covers--Part 2 Of 2
4h9050 Transmission Group
| 4H***50 | Transmission Group | 1 |
Diesel
Accessory Shaft And Idler Gear
Air Cleaner
Balancer
4f3567 Basic Governor Group--Part 2 Of 2
| 4F***67 | Basic Governor Group | 1 |
4f3567 Basic Governor Group--Part 1 Of 2
| 4F***67 | Basic Governor Group | 1 |
Breather And Oil Filler
Camshaft
5h2634 Complete Governor Group--8% Regulation At 1400 R.P.M.
| 5H***34 | Complete Governor Group | 1 |
Compression Release Control
Connecting Rod And Piston--4 Required
Crankshaft
Crankshaft Bearing Replacement
Cylinder Block And Covers--Side View--Part 1 Of 2
Cylinder Block And Covers--Front View - Part 2 Of 2
Cylinder Block And Covers--Side View - Part 1 Of 2
Cylinder Block And Covers--Front View -- Part 2 Of 2
5h1942 Cylinder Block Assembly
| 5H***42 | Cylinder Block Assembly | 1 |
Cylinder Head And Valve Mechanism
Exhaust Extension
4h7500 Fan And Water Pump Group
| 4H***00 | Fan And Water Pump Group | 1 |
9h8381 Fan Group
| 9H***81 | Fan Group | 1 |
Fuel Filter
4f6738 Fuel Injection Valves And Lines Group
| 4F***38 | Fuel Injection Valves And Lines Group | 1 |
Fuel Pump And Governor Control
Fuel Pump Housing
4f6742 Fuel Pump Housing Group
| 4F***42 | Fuel Pump Housing Group | 1 |
4h8487 Fuel System Group
| 4H***87 | Fuel System Group | 1 |
5f6607 Fuel Transfer Pump Group
| 5F***07 | Fuel Transfer Pump Group | 1 |
5f8592 Governor Control Group--Positive Locking
| 5F***92 | Governor Control Group | 1 |
5h8033 Governor Control Group--Positive Locking
| 5H***33 | Governor Control Group | 1 |
4f8125 Hour Meter Group
| 4F***25 | Hour Meter Group | 1 |
Manifolds--Top View
Manifolds (5h213 N/S)
| 5H***13 | Manifolds | 1 |
4h7486 Oil Cooler Group
| 4H***86 | Oil Cooler Group | 1 |
Oil Gauge, Fuel Gauge And Heat Indicator
Oil Lines And Filter
2h7735 Oil Pump Assembly
| 2H***35 | Oil Pump Assembly | 1 |
4h7374 Radiator Group--Part 2 Of 2
| 4H***74 | Radiator Group | 1 |
4h7374 Radiator Group--Part 1 Of 2
| 4H***74 | Radiator Group | 1 |
8h5218 Service Meter Group--Field Installation--Type 2
| 8H***18 | Service Meter Group | 1 |
8h5218 Service Meter Group--Field Installation--Type 3
| 8H***18 | Service Meter Group | 1 |
8h5218 Service Meter Group--Type 1
| 8H***18 | Service Meter Group | 1 |
Water Lines (4h8992 N/S)
| 4H***92 | Water Lines | 1 |
Water Lines
9h8382 Water Pump Group
| 9H***82 | Water Pump Group | 1 |
Hydraulic Controls
1j4751 Control Valve Group
| 1J***51 | Control Valve Group | 1 |
6h2974 Control Valve Group
| 6H***74 | Control Valve Group | 1 |
Hydraulic Lines
6h1018 Hydraulic Oil Filter Group
| 6H***18 | Hydraulic Oil Filter Group | 1 |
3k6727 Hydraulic Oil Filter Group
| 3K***27 | Hydraulic Oil Filter Group | 1 |
Hydraulic Pump And Lines--Top View--Part 2 Of 2
Hydraulic Pump And Lines--Top View -- Part 2 Of 2
Hydraulic Pump And Lines--Side View--Part 1 Of 2
Hydraulic Pump And Lines--Side View -- Part 1 Of 2
Hydraulic Pump And Lines--Top View-Part 2 Of 2
Hydraulic Pump And Lines--Side View--Part 2 Of 2
9h6690 Hydraulic Pump Assembly
| 9H***90 | Hydraulic Pump Assembly | 1 |
5h3422 Hydraulic Pump Assembly
| 5H***22 | Hydraulic Pump Assembly | 1 |
Hydraulic Valve And Tank--End View--Part 2 Of 2
Hydraulic Valve And Tank--End View-Part 2 Of 2
Hydraulic Valve And Tank--Front View--Part 1 Of 2
Hydraulic Valve And Tank--End View - Part 2 Of 2
Hydraulic Valve And Tank--Front View - Part 1 Of 2
Hydraulic Valve And Tank--Front View-Part 1 Of 2
Hydraulic Valve Hand Control
6h8267 Relief Valve Assembly
| 6H***67 | Relief Valve Assembly | 1 |
5h8004 Relief Valve Assembly
| 5H***04 | Relief Valve Assembly | 1 |
2k3743 Tilt Cylinder Group--R.H.
| 2K***44 | Tilt Cylinder Group | 1 |
3h2852 Universal Joint
| 3H***52 | Universal Joint | 1 |
8h6473 Universal Joint Assembly
| 8H***73 | Universal Joint Assembly | 1 |
Starting Engine
Air Cleaner, Breather And Carburetor
9h9886 Battery Group--6 Volt
| 9H***86 | Battery Group | 1 |
6h3644 Battery Group--6 Volt
| 6H***44 | Battery Group | 1 |
2a3589 Camshaft Group
| 2A***89 | Camshaft Group | 1 |
5f3527 Caburetor
| 5F***27 | Carburetor | 1 |
3h3779 Carburetor Controls Group
| 3H***79 | Carburetor Controls Group | 1 |
4h7577 Clutch And Starter Pinion Control Group
| 4H***77 | Clutch And Starter Pinion Control Group | 1 |
9h9911 Clutch And Starter Pinion Control Group
| 9H***11 | Clutch And Starter Pinion Control Group | 1 |
3b8008 Clutch And Starter Pinion Group
| 3B***08 | Clutch And Starter Pinion Group | 1 |
3h6366 Clutch Housing Group
| 3H***66 | Clutch Housing Group | 1 |
2a3591 Connecting Rod And Piston Group--2 Groups Required
| 2A***91 | Connecting Rod And Piston Group | 1 |
2a3590 Crankshaft Group
| 2A***90 | Crankshaft Group | 1 |
Cylinder Block, Cylinder Head And Valve Mechanism--End View--Part 2 Of 2
Cylinder Block, Cylinder Head And Valve Mechanism--Side View--Part 1 Of 2
9h9889 Electric Starter Group--6 Volt
| 9H***89 | Electric Starter G | 1 |
3h6512 Electric Starting Group--6 Volt
| 3H***12 | Electric Starting Group | 1 |
Fuel System
8f3333 Generator--6 Volt, 20 Ampere
| 8F***33 | Generator | 1 |
4f6969 Generator Group--6 Volt, 20 Ampere
| 4F***69 | Generator Group | 1 |
2a4102 Governor Group
| 2A***02 | Governor Group | 1 |
3h6361 Ignition System Group
| 3H***61 | Ignition System Group | 1 |
7f9932 Magneto
| 7F***32 | Magneto | 1 |
9h4492 Magneto
| 9H***92 | Magneto | 1 |
4s6471 Magneto Assembly--Field Installation
| 4S***71 | Magneto Assembly | 1 |
6f8024 Electric Starting Motor--6 Volt
1l3468 Regulator--6 Volt, 20 Ampere
| 1L***68 | Regulator | 1 |
7h842 Regulator--6 Volt, 20 Ampere
| 7H***42 | Regulator | 1 |
7m3962 Regulator Assembly--6 Volt, 20 Ampere--Replaces 1m2381
| 7M***62 | Regulator Assembly | 1 |
1m2381 Regulator--6 Volt, 20 Ampere
| 1M***81 | Regulator Assembly | 1 |
Traxcavator
2k3783 Bucket Assembly--1 1/2 Cu. Yd.--80" Wide
| 2K***83 | Bucket Assembly | 1 |
Bucket Control
Bucket Lift Control Kickout
2k3777 Lift Cylinder Group--R.H.--Type 1
| 2K***77 | Lift Cylinder Group | 1 |
2k3777 Lift Cylinder Group--5.5" X 29.25"--R.H.--Type 2
| 2K***77 | Lift Cylinder Group | 1 |
4k2021 Tooth Group
| 4K***21 | Tooth Group | 1 |
955 serial number reference
The PIN/serial plate on early 955/955H/955K generations is riveted on the left side of the engine block just above the pinion/clutch housing, with a duplicate plate on the left rear flat of the transmission case (sometimes hidden behind a winch). Later 955L plates follow Cat's standard frame-mounted ID plate. The prefix is the leading letters+digits before the sequential unit number (e.g. 61H1234): match the prefix to the tables above to pin down series/generation, engine, and build plant, then use the number that follows to place the unit within that prefix's production run for parts-manual breakpoints.
| Prefix | Identifies | Notes |
|---|---|---|
| 12A | 955 (original) / 955C, direct-drive standard-shift | Earliest Traxcavator generation, introduced 1955, built on the wide-gauge D4 (7U) chassis. Diesel D315 engine, same basic engine as the D4 with a horsepower bump. Runs roughly 1955 through 1960 (12A1 up to about 12A8418). |
| 42D | 955A bulldozer chassis variant | Dozer-blade version of the same base chassis, sold alongside the 955/955C loader as the 955A. Covered from 42D1/42D329 up. Blade only, no bucket. |
| 60A | 955H, US-built | Introduced around 1960. Turbocharged 4-cylinder D330T diesel (about 100-115hp; not the D333, which belongs to the larger 977H) driving a 2-speed power shift transmission. US production; largely identical mechanically to the Australian-built 77A. Last 955H built in 1967. |
| 72A | 955H | Grouped with 60A/77A/93A as the 955H family in Cat dealer parts-catalog listings (same track spec across all four prefixes). No individual serial breakpoints found for this prefix specifically -- confirm exact plant/year with dealer. |
| 77A | 955H, Australian-built | Australian assembly starting 1962/1963. Engine built in the US and shipped in; Australian plant built frame, final drives, steering clutches, and hydraulics. Documented year breaks roughly 77A0108-0165 (1963) through 77A0350-0364 (1968). |
| 93A | 955H | Grouped with 60A/72A/77A as 955H in Cat dealer parts-catalog listings. No individual serial breakpoints found for this prefix specifically -- confirm exact plant/year with dealer. |
| 31J | 955K | Turbocharged 4-cylinder D330T engine. Cat service/parts literature groups 31J with 48H, 53H, and 61H as equivalent for manual purposes. |
| 48H | 955K | D330T engine. Grouped with 31J/53H/61H in Cat service literature. |
| 53H | 955K | D330T engine. Grouped with 31J/48H/61H in Cat service literature (confirmed via Cat 955K service manual listing covering SN 31J, 48H, 53H, 61H). |
| 57J | 955K | D330T engine, same generation as 31J/48H/53H/61H. |
| 61H | 955K | D330T turbocharged 4-cylinder engine, power shift transmission. Production runs roughly 1966-1971, about 115hp. |
| 64J | 955K then 955L (mid-run rebadge), France-built | French-built export unit. Same D330T engine and power train from the start; Caterpillar rebadged units from around serial 3993/3994-up as 955L on the data plate/literature without a driveline change at that point. |
| 71J | 955K, then 955L at 71J04558-up, Japan-built (Caterpillar Mitsubishi) | Japanese-built export unit (Caterpillar Mitsubishi), sold worldwide alongside the French (64J) and US (85J) builds. D330T engine through the K-badged run; from about 71J04558-up the unit was rebadged 955L and switched to the 3304 engine, mirroring the 64J and 85J transitions. |
| 85J | 955K then 955L (mid-run rebadge), US-built | US-built. Units up to about 85J04671 badged 955K; 85J04672-up rebadged 955L with the engine changed to the 3304 (from the D330T). Sold worldwide. |
| 08Y | 955L, power shift, France-built | French-built 955L, power shift transmission, turbocharged 3304 diesel engine (about 130hp), dating from around 1980. |
| 13D | 955L | Appears only in aggregated dealer/parts-lookup prefix listings alongside 08Y/13X/57M, with no independently documented serial breakpoints found -- confirm with dealer before relying on it. |
| 13X | 955L, power shift, LGP available | 3304 diesel engine, power-shift transmission, 13X00001-up. Documented in both standard and LGP (low ground pressure, wider track/shoe) configuration. |
| 57M | 955L, latest production | Latest 955L build, produced roughly 1978 into the early 1980s -- distinguished by twin filters on the hydraulic tank. 3304 engine (about 130hp), power shift. |
Frequently asked questions
What engine does the Caterpillar 955 have?
It depends on series. The original 955 (12A-prefix) used the naturally aspirated Cat D315 four-cylinder diesel. The 955H and 955K moved to a turbocharged D330 four-cylinder, and the 955L used a turbocharged D330 or the 3304 four-cylinder, depending on production year.
What is the operating weight of the Caterpillar 955?
Operating weight varies by series, from roughly 9.7 tonnes (21,480 lb) on the original 955 up to about 15.9 tonnes (34,950 lb) on the 955L, with the 955H and 955K falling in between at roughly 11.3 to 12.7 tonnes (24,950-28,000 lb).
What replaced the Caterpillar 955?
The 955L was the last machine in the 955 line, produced into the late 1970s. Caterpillar's crawler loader lineup continued afterward with other model families, but no single model was marketed as a direct one-for-one 955 replacement.
What 955 owners discuss
What powertrain behavior do owners and mechanics commonly report on the Cat 955 track loader?
The 955 line runs a torque-converter powershift drivetrain, not a direct-drive or hydrostatic transmission. Owners report reduced power on grades and sluggish response when converter or transmission oil has moisture contamination or is overdue for a change - a fresh oil and filter service often restores normal pull. Because the machine combines loader hydraulics with crawler-tractor steering clutches, operators note it is more maintenance-intensive and harder to access than a wheeled loader of similar size. Overall drivetrain layout (D315 mechanical engine on the earliest 12A-prefix units versus D330 on later H/K/L series) is consistent across owner reports, so verify which engine is actually fitted before ordering parts.
What hydraulic problems show up most often on these machines?
Bucket tilt cylinder seal leaks are a recurring complaint on 955K/L units, and lift cylinder seals leak in the same way, often showing as dark grime streaking down the lift arm. Cylinder head fasteners can be seized from age, so seal jobs typically need a torque multiplier and penetrating oil rather than routine hand tools. A worn hydraulic pump tends to run fine cold but starts to whine and loses lift speed once the oil warms up after 15-20 minutes of work; that symptom points to internal bypass wear in the pump rather than a cylinder problem. Hot-running oil on an otherwise sound system is treated by owners as an early pump-wear indicator.
What undercarriage and track wear patterns are typical for a 955?
Track tension has an outsized effect on wear: running tracks too tight accelerates wear on rollers and especially the front idler. A common owner fix documented in vintage-Cat circles is shimming the front idler yoke where it rides the track frame, since clearance there lets tracks jump the idler. Oil weeping onto the track pads right at the final drive/sprocket area is treated as an early sign of a failing mechanical face seal at the sprocket hub - left unaddressed it lets debris into the final drive and turns into a major gear and bearing repair. Because pulling a final drive seal means removing the track and frame and pressing the sprocket off, owners budget this as a heavy, multi-day job rather than routine maintenance.
Do engine quirks differ between the D315-powered 955 and the later D330-powered H/K/L series?
Yes, and the split matters for troubleshooting. The original 12A-prefix 955 (1954-1960) runs the mechanical D315 and is generally regarded in vintage-Cat circles as a simple, reliable engine for its era; its main recurring complaint is overheating from debris - picked off the back of a raised bucket - getting pulled through the radiator core by the fan and packing or sandblasting the fins. The later D330-powered 955H/955K/955L use direct injection, and owners of these report the fuel rack sticking if the machine has sat for a while, often freed by tapping it lightly after soaking the linkage in penetrating oil. Modern ultra-low-sulfur diesel is also widely reported to dry out and crack older non-Viton O-rings in these mechanical injection pumps, and low fuel lubricity is blamed for premature injection pump wear - a lubricity additive is a common preventive step among owners running these engines on current pump-diesel.
Are there electrical or sensor-related complaints on the Cat 955?
This is an all-mechanical machine with no engine control module or sensor network, so "electrical issues" here mean the basic 24-volt starting circuit rather than modern electronics. The 955 uses two 12-volt batteries wired in series for 24 volts, and owners stress using a proper meter rather than a 12V test light when chasing faults. Most no-start electrical complaints trace back to corroded or loose battery cable terminals causing a poor ground or resistive heat buildup, or to failed fusible links in the starter circuit. A starter that clicks or thumps once but doesn't crank the engine typically points to the solenoid engaging the bendix without full voltage reaching the starter motor post - a wiring or contact problem, not a control-electronics fault.
What should I know about steering clutch and brake service on the 955?
Steering on the 955 is by clutch-and-brake, not hydrostatic, and pedal feel is the main owner-reported symptom of wear: clutch packs that slip lose turning power, and brake bands that lose tension let the machine creep or fail to hold. Access is from underneath at the rear, behind covers over the final drive housings, where threaded adjusters set pedal free play and clutch release. Owners caution against over-tightening the clutch adjustment, since that can prevent the clutch from fully releasing and cause it to drag or overheat. Because steering and braking are safety-critical and the adjustment tolerances are tight, have your dealer or a qualified technician verify clutch and brake adjustment before returning the machine to work.
What should I check before buying a used Cat 955?
Ask for service history first; owners who kept to factory maintenance intervals on these machines report much longer component life. Inspect the sprockets - teeth should be blunt and rounded where they contact the track, not sharp or egg-shaped, which indicates final drive or track wear. Look for oil weeping onto the track pads right at the final drives, a sign of a failing sprocket seal. Check hydraulic oil condition (should look clean, not burnt or milky) and run the lift and tilt functions through a full cycle watching for cylinder leaks or a pump that starts to whine as it warms up. Work the steering clutches and brakes on both sides and confirm the machine turns and stops evenly with normal pedal effort. Start the engine cold and listen for knocking, and note fuel rack behavior if the machine has been sitting - a sticking rack on D330-engined H/K/L units is common after long idle periods. Always take the machine on a full test drive, working it in both directions and under load, before finalizing a purchase, and have your dealer confirm final drive and clutch condition on any unit you're seriously considering.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Caterpillar 955. Related factory variants of the same model family:
955
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