Caterpillarwheel-type loaderwheel loader
Caterpillar 992B
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 992B is a large wheel-type loader in the 10 cu yd (7.6 m3) general-purpose bucket class, built for high-volume loading in quarry, mine, and heavy construction work. It runs a Caterpillar D348 diesel: a four-stroke, V-12, twin-turbocharged engine displacing 29.3 L and rated at 410 kW (550 flywheel hp) at 2,000 rpm. Fuel delivery is entirely mechanical, using a precombustion-chamber design with an individual injection pump for each cylinder and no electronic engine controls. Operating weight runs roughly 65,550-67,840 kg (144,520-149,550 lb) depending on bucket and tire selection. Caterpillar built the 992B from about 1973 to 1977 as the direct successor to the original 992, sharing the same 25K serial-number prefix (992B configuration begins around 25K01170); Caterpillar replaced it with the 992C around 1977. Configurations offered included standard-lift and high-lift (Hi-Lift) boom arrangements, plus a beadless tire option for severe rock and heat-duty work.
Against the original 992, the 992B added a substantial amount of operating weight without changing rated payload, along with a standard ROPS cab structure and a box-section main frame and loader tower engineered to resist bending and twisting under mine-face loading. The 992B still used the 8-bar loader linkage; Caterpillar did not move to the Z-bar linkage design until the 992C, which also switched engines to the Cat 3412 rated near 690 hp. That makes the 992B the last of the 8-bar, D348-powered generation before Cat's loader linkage and engine architecture changed direction. On the used and parts market today, surviving 992B units are mostly older mine and quarry machines valued for their simple mechanical fuel system and lack of electronics: no ECM and no CID/FMI fault codes to diagnose, which keeps them serviceable with basic diesel mechanic skills and generic instrumentation. Parts sourcing leans on the shared 992/992B service literature under the 25K prefix, and buyers should confirm which boom, bucket, and tire configuration a given serial falls under before ordering linkage or axle components.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar 992B specifications
Engine
| Engine model | Caterpillar D348, 4-stroke-cycle diesel, 60° V-12 configuration |
| Bore x stroke | 137 x 165 mm (5.4 x 6.5 in) |
| Displacement | 29.3 L (1,786 cu in) |
| Power rating | 410 kW (550 flywheel hp) at 2,000 rpm, SAE net rating with fan, air cleaner, mufflers, water pump, lube pump, fuel pump and alternator installed. Rated power held to 3,000 m (10,000 ft) altitude |
| Aspiration | Twin turbocharged, four valves per cylinder, precombustion-chamber fuel system with individual injection pumps per cylinder |
| Emissions tier | Pre-emissions-regulation design (mid/late-1970s engine); no EPA or Tier certification applies |
| Series note | Single engine generation for this nameplate. The D348 is unique to this loader; the later 992C successor switched to the Cat 3412 V-12 |
Weights
| Operating weight, general purpose bucket (standard tires) | 65,550-65,935 kg (144,520-145,360 lb), without vs. with teeth |
| Operating weight, V-type rock bucket (standard tires) | 66,320-66,710 kg (146,210-147,060 lb), without vs. with teeth |
| Operating weight, with Beadless Tire option | 66,683-67,840 kg (147,010-149,550 lb), varies by bucket type and teeth |
| Operating weight, overall range | Approximately 65,550-67,840 kg (144,520-149,550 lb) across all catalogued bucket/tire combinations per the factory specification chart, all figures include standard cab and rear-tire ballast. Some third-party equipment databases cite a lower reference figure near 64,320 kg (141,800 lb) without stating configuration - confirm exact build with your dealer |
| Ground pressure | Not published for this wheel loader class |
Dimensions
| Tread width (track gauge) | 2,930 mm (115.5 in), constant across all tire options |
| Width over tires | 3,860-3,990 mm (152-157 in), depending on tire choice |
| Ground clearance | 530-600 mm (20.8-23.8 in), depending on tire choice (lowest with the Beadless Tire option) |
| Overall length (bucket on ground) | 10,670-11,400 mm (35'0" to 37'5"), varies by bucket type and teeth |
| Overall height, full lift and dump | 7,920-8,330 mm (26'0" to 27'4"), varies by bucket type |
| Overall height, standard travel/carry position | Approximately 5,990 mm (19'8"), figure varies with bucket type per the factory general-arrangement drawing |
| Minimum turning radius, over tires | 8,890 mm (29'2") |
Performance
| Travel speed, standard rock tires (1st/2nd/3rd, forward) | 7.7 / 17.2 / 40.2 km/h (4.8 / 10.7 / 25.0 mph) |
| Travel speed, standard rock tires (1st/2nd/3rd, reverse) | 8.4 / 18.8 / 43.6 km/h (5.2 / 11.7 / 27.1 mph) |
| Travel speed, Beadless Tire option (1st/2nd/3rd, forward) | 7.0 / 15.9 / 37.4 km/h (4.4 / 9.9 / 23.3 mph) |
| Travel speed, Beadless Tire option (1st/2nd/3rd, reverse) | 7.7 / 17.5 / 40.7 km/h (4.8 / 10.9 / 25.3 mph) |
| Articulation / steering angle | Center-point articulated frame, 35° each direction (70° total arc); front and rear wheels track at all times |
| Static tipping load, straight (standard tires) | 43,720-45,260 kg (96,390-99,780 lb), varies by bucket type and teeth |
| Static tipping load, full 35° turn (standard tires) | 39,470-40,990 kg (87,010-90,370 lb), varies by bucket type and teeth |
| Breakout force, general purpose bucket | 35,950-36,420 kg (79,260-80,300 lb) |
| Breakout force, V-type rock bucket | 28,130-28,610 kg (62,020-63,070 lb) |
| Loader hydraulic cycle time, rated load | Raise 9.5 s, dump 2.9 s, float-down 4.2 s; total cycle 16.6 s |
| Loader (lift/tilt) hydraulic pump flow | 830 L/min (220 US gpm) at 2,000 rpm and 69 bar (1,000 psi); relief setting 172 bar (2,500 psi) |
| Steering hydraulic pump flow | 540 L/min (143 US gpm) at 2,000 rpm and 69 bar (1,000 psi); relief setting 172 bar (2,500 psi) |
| Gradeability / rimpull | Not published as a single figure in the factory spec sheet; variable-capacity torque converter lets the operator bias engine power between drive train and hydraulics for grade and rimpull needs |
Service capacities (summary)
| Fuel tank | 1,040 L (275 US gal) |
| Hydraulic system | 850 L (225 US gal) |
| Engine oil (crankcase) | 71 L (18.75 US gal) |
| Cooling system | 155 L (41 US gal) |
| Transmission | 78 L (20.5 US gal) |
| Front differential and final drives | 206 L (54.5 US gal) |
| Rear differential and final drives | 199 L (52.5 US gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
992B fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 71 L (18.75 US gal) | Cat DEO or Cat DEO-ULS multigrade diesel engine oil. Grade by climate: SAE 15W-40 for -10°C to 50°C (14°F to 122°F); SAE 10W-30 for -18°C to 40°C (0°F to 104°F); Cat DEO-ULS SYN 5W-40 for a wider range down to -30°C (-22°F); Cat DEO Cold Weather 0W-40 for extreme cold to -40°C (-40°F). This V-12 diesel uses a precombustion-chamber fuel system; Cat applies the same oil types and viscosity grades to precombustion-chamber engines as to its direct-injection engines. Fit a new oil filter at every change. |
| Cooling system | 155 L (41 US gal) | Cat ELC (Extended Life Coolant) premixed 1:1 with water, or Cat DEAC (Diesel Engine Antifreeze/Coolant) conventional coolant at the same 50% glycol / 50% water ratio. Both give freeze protection to about -37°C (-34°F); raise glycol toward 60% only for extreme cold (protection to about -52°C / -62°F). DEAC-type coolant needs a Supplemental Coolant Additive (SCA) held at the recommended concentration; ELC needs only a one-time Extender at mid-life. Never run water alone. |
| Fuel tank | 1040 L (275 US gal) | Diesel fuel meeting Cat's distillate fuel specification: No. 2-D grade for normal service, No. 1-D winter blend for cold-weather starting. Minimum cetane number 35 for this precombustion-chamber engine. |
| Transmission (powershift, with torque converter) | 78 L (20.5 US gal) | Cat TDTO (Transmission/Drive Train Oil). Grade by climate: SAE 10W for -20°C to 10°C (-4°F to 50°F); SAE 30 for 0°C to 35°C (32°F to 95°F), the typical factory-fill grade for this size of loader; SAE 50 for continuous duty above 10°C (50°F). Cat TDTO-TMS multigrade covers a wider span with one product. |
| Front axle (differential and final drives) | 206 L (54.5 US gal) | Cat TDTO, same climate-based grades as the transmission (SAE 10W / SAE 30 / SAE 50, or TDTO-TMS multigrade). TDTO is used rather than a final-drive-only oil because the wheel oil-disc brakes share the axle housing and need a friction-compatible fluid. |
| Rear axle (differential and final drives) | 199 L (52.5 US gal) | Cat TDTO, same climate-based grades as the front axle and transmission (SAE 10W / SAE 30 / SAE 50, or TDTO-TMS multigrade). |
| Hydraulic system (implement lift/tilt and steering, common reservoir and filtration) | 850 L (225 US gal) | Cat HYDO Advanced hydraulic oil. Grade by climate: SAE 10W for -20°C to 40°C (-4°F to 104°F), the typical factory-fill grade; SAE 20W for -5°C to 45°C (23°F to 113°F); SAE 30 for 10°C to 50°C (50°F to 122°F) hot-climate service. Cat Bio HYDO Advanced (ISO 46 multigrade) is the biodegradable option where required. |
| Grease (chassis and pin lubrication, spec only) | Not a fluid reservoir; applied per grease fitting, no system capacity specified | Cat Extreme Application Grease (NLGI 1 or 2, contains moly) for heavily loaded pins and linkage under continuous, aggressive duty such as bank or shot-rock face loading. Cat Prime Application Grease (NLGI 2, contains moly) for medium-duty cycles. Cat Utility Grease (NLGI 2) for light-duty, high-idle service. Cat Ball Bearing Grease (NLGI 2) for fan-drive and wheel-bearing points. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 992B 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 992B beyond the schedule
Predictive Maintenance & Fluid Analysis
The 992B's D348 has no ECM or onboard diagnostics, so scheduled oil sampling is the only early-warning system available. Pull engine oil, torque converter/transmission oil, and front/rear axle oil samples at each service interval and track wear metals across the twin-turbo V-12, powershift transmission, and planetary final drives. Because fuel delivery runs through individual mechanical injection pumps per cylinder, watch fuel filter differential pressure and injector return-flow balance closely; contamination shows up as uneven cylinder performance long before it would ever trigger a warning lamp.
Corrective & Common Repairs
Common wear points on the 992B center on the 8-bar loader linkage pins and bushings, which see heavy cyclic loading at the bucket and tower pivots and need regular play checks. The fully enclosed oil-disc brakes at each wheel run in oil, so brake drag or slipping usually traces to oil condition or disc wear rather than external contamination. Twin-turbocharger shaft bearing wear is another recurring issue on high-hour D348 engines; listen for boost lag or exhaust smoke change as an early sign before compressor wheel damage occurs.
Overhaul & Rebuild Points
Top-end overhaul on the D348 focuses on cylinder liners, pistons, and the precombustion chambers, which take the brunt of twin-turbo cylinder pressure over the engine's service life. Torque converter and powershift transmission rebuilds typically follow clutch pack wear identified through oil sampling rather than a fixed hour count. Front and rear axle planetary final drives and differentials are the other major rebuild item on a machine this size; plan for bearing and gear inspection whenever axle oil analysis shows rising wear-metal trends.
Seasonal & Environment Servicing
Cold-weather starts on the D348's mechanical fuel system depend on correct fuel viscosity and clean injection pump timing; switch to a winter-grade diesel fuel and check fuel heater function (if fitted) before temperatures drop. In hot, abrasive quarry or mine-face duty, the beadless tire option reduces heat-related tire failure risk and warrants extra attention to tire pressure and rim condition. Year-round, keep the twin-turbo air intake and cooling package free of dust buildup, since airflow restriction hits both engine cooling and turbocharger life on a machine this size.
992B common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 8S-2391 | Filter As-Oil | Lubrication service | Check fitment → |
| 7S-9896 | Oil Filter Assembly | Lubrication service | Check fitment → |
| 6J-8096 | Rear Tank And Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
992B fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| ENGINE OIL PRESSURE - warning light (no numeric code) | Engine oil pressure has dropped below the safe minimum, sensed by the oil pressure contactor switch on the D348 engine's mechanical protective system. | Low oil level, failing oil pump, plugged suction screen or strainer, worn main/rod bearings, or a faulty pressure switch. | Stop the engine as soon as safely possible, check oil level and look for external leaks before restarting; confirm actual pressure with a mechanical test gauge if the light stays lit. |
| COOLANT TEMPERATURE - gauge in red zone / high-temp warning light | Engine jacket water temperature has exceeded the normal operating range, sensed by the water temperature contactor switch. | Low coolant level, plugged radiator core or screens, slipping or damaged fan drive, or a stuck thermostat. | Reduce load and let the engine idle down to cool; once safe, check coolant level and inspect the radiator and fan for debris. Do not remove a hot pressure cap. |
| ENGINE OVERSPEED SHUTDOWN - overspeed contactor tripped, manual reset required | The engine's overspeed contactor detected rpm above the safe limit and energized the fuel shutoff solenoid, stopping the engine. | Downhill runaway without using the transmission to retard the machine, a governor linkage fault, or a sticking fuel rack. | Bring the machine to a safe stop, inspect governor linkage and throttle controls before restart, then push the overspeed reset button before attempting to start the engine again. |
| ALTERNATOR / CHARGING - warning light | The charging circuit lamp shows the alternator is not producing system voltage and the battery is not being charged. | Loose or worn drive belt, worn brushes or a failed alternator, broken wiring, or a poor ground connection. | Check belt condition and tension and inspect wiring/connections first, then bench- or on-machine-test alternator output; replace the alternator if it fails the test. |
| TORQUE CONVERTER OIL TEMPERATURE - gauge in red zone | Torque converter (power train) oil temperature has risen above the normal range shown on the dash gauge. | Extended stall-condition digging or pushing, low converter oil level, a plugged oil cooler core, or a failing cooler bypass valve. | Reduce load and let the converter cool at low idle; once cooled, check oil level and inspect the cooler core for restriction. |
| AIR CLEANER SERVICE - restriction indicator | Air intake restriction across the air cleaner element has reached the level where the indicator calls for servicing. | Dust- or debris-loaded primary or secondary element, a collapsed element, or a plugged pre-cleaner. | Service or replace the air cleaner element per the maintenance schedule, then reset the indicator. |
| HYDRAULIC OIL FILTER BYPASS - indicator | The hydraulic filter bypass indicator shows the element is restricted enough that oil is bypassing the filter unfiltered. | Filter element overdue for change, cold oil at startup temporarily raising differential pressure, or contaminated hydraulic oil. | Replace the hydraulic filter element; if the indicator trips again soon after, sample the hydraulic oil for contamination. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
992B attachments & work tools
General purpose and rock buckets
Factory general purpose and rock buckets are rated around 10 cu yd (7.6 m3) heaped capacity on the standard-lift 992B. Field listings show variance up to roughly 15 cu yd on heavy-duty rock buckets and different widths on coal-service buckets, so heaped capacity varies by configuration/series and boom arrangement.
Application-specific buckets
Beyond the base GP/rock bucket, this size class of 992-series loader is offered with duty-specific buckets for coal, limestone, granite, and iron ore handling, sized and profiled for the abrasion or density of each material. Exact capacities for these variants are not consistently documented for the 992B specifically; confirm heaped/struck capacity with a dealer for a given application.
Standard-lift and high-lift boom arrangement
The 992B was factory-offered with standard-lift and high-lift (Hi-Lift) loader arm arrangements. High-lift trades some reach and static tip load for greater dump clearance, useful for loading over truck sideboards; standard-lift favors payload and cycle time. Bucket size and lift capacity change with the arrangement selected.
Loader linkage type
The 992B uses an 8-bar loader linkage, not the Z-bar linkage introduced later on the 992C and subsequent 992 generations. This affects breakout force and bucket rollback behavior versus later 992-family machines and is the main reason digging-force and payload figures should not be carried over between the 992B and newer 992 variants.
Bucket mounting and cutting edges
Work tools on the 992B pin-mount directly to the loader arms and tilt lever; no quick-coupler/pin-grabber system is documented for this model or era of large wheel loader. Cutting edges and corner/edge wear segments are bolt-on and field-replaceable, allowing edge profile changes (straight, spade-nose) without swapping the whole bucket.
Tire and undercarriage protection
Standard rock/quarry-service pneumatic tires were factory fitment, with a beadless tire system offered as an option for severe abrasion and heat environments. The beadless setup uses a two-piece rim and a steel-cable-wound air chamber to cut damage from rock slashes and reduce tire-related downtime in mining and quarry duty.
All 992B assemblies by section
Every catalogued assembly group for the Caterpillar 992B. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Attachments
3v7109 Seat Belt Group
| 3V***09 | Seat Belt Group | 1 |
3v7111 Basic Belt Group
| 3V***11 | Seat Belt Group | 1 |
8k5355 Air Conditioning Arrangement
| 8K***55 | Air Conditioning Arrangement | 1 |
| 8K***51 | Air Conditioning Group | 1 |
| 9S***69 | Refrigerant Compressor Group | 1 |
7k529 Air Conditioning Assembly
| 7K***29 | Air Conditioning Assembly | 1 |
6k9768 Air Conditioning Group--Part 1 Of 2--Type 1
| 6K***68 | Air Conditioning Group | 1 |
6k9768 Air Conditioning Group--Part 2 Of 2--Type 1
| 6K***68 | Air Conditioning Group | 1 |
6k9768 Air Conditioning Group--Part 1 Of 2--Type 2
| 6K***68 | Air Conditioning Group | 1 |
8k9151 Air Conditioning Group--Part 2 Of 2--Type 2
| 8K***51 | Air Conditioning Group | 1 |
6k9768 Air Conditioning Group--Part 2 Of 2--Type 2
| 6K***68 | Air Conditioning Group | 1 |
8k9151 Air Conditioning Group--Part 1 Of 2--Type 1
| 8K***51 | Air Conditioning Group | 1 |
8k9151 Air Conditioning Group--Part 1 Of 2--Type 2
| 8K***51 | Air Conditioning Group | 1 |
8k9151 Air Conditioning Group--Part 2 Of 2--Type 1
| 8K***51 | Air Conditioning Group | 1 |
8j5363 Bit And Cutting Edge Group--Field Installation--Type 2
| 8J***63 | Bit And Cutting Edge Group | 1 |
8j5364 Bit And Cutting Edge Group--Field Installation--Type 1
| 8J***64 | Bit And Cutting Edge Group | 1 |
8j5363 Bit And Cutting Edge Group--Field Installation--Type 1
| 8J***63 | Bit And Cutting Edge Group | 1 |
8j5365 Bit And Cutting Edge Group--Field Installation--Type 1
| 8J***65 | Bit And Cutting Edge Group | 1 |
8j5365 Bit And Cutting Edge Group--Field Installation--Type 2
| 8J***65 | Bit And Cutting Edge Group | 1 |
8j5364 Bit And Cutting Edge Group--Field Installation--Type 2
| 8J***64 | Bit And Cutting Edge Group | 1 |
8k7189 Bucket Assembly--General Purpose--10 Cubic Yard--171" Wide
| 8K***89 | Bucket Assembly | 1 |
8k7190 Bucket Assembly--10 Cubic Yard--171" Wide
| 8K***90 | Bucket Assembly | 1 |
6k7121 Bucket Assembly--Rock Loading--10 Cubic Yard--156.50" Wide
| 6K***21 | Bucket Assembly | 1 |
6k7141 Bucket Assembly--General Purpose--10 Cubic Yard--152" Wide
| 6K***41 | Bucket Assembly | 1 |
7k8416 Bucket Assembly--Rock Loading--10 Cubic Yard--156.50" Wide
| 7K***16 | Bucket Assembly | 1 |
9k4047 Bucket Assembly
| 9K***47 | Bucket Assembly | 1 |
8k8501 Bucket Assembly--Rock Loading
| 8K***01 | Bucket Assembly | 1 |
9k472 Bucket Group--General Purpose--10 Cubic Yard--167" Wide
| 9K***72 | Bucket Group | 1 |
8k8478 Bucket Group--Rock Loading--10 Cubic Yard--167" Wide--Type 1
| 8K***78 | Bucket Group | 1 |
7k8425 Bucket Group--Rock Loading With Teeth--10 Cubic Yard--156.50" Wide
| 7K***25 | Bucket Group | 1 |
8k8478 Bucket Group--Rock Loading--10 Cubic Yard--167" Wide--Type 2
| 8K***78 | Bucket Group | 1 |
9k4046 Bucket Group--Rock Loading--10 Cubic Yard--167" Wide
| 9K***46 | Bucket Group | 1 |
6k8929 Bucket Group--Rock Loading With Teeth--10 Cubic Yard--156.50" Wide
| 6K***29 | Bucket Group | 1 |
7k7064 Bucket Group--Rock Loading With Teeth--10 Cubic Yard--156.50" Wide
| 7K***64 | Bucket Group | 1 |
1p2780 Refrigerant Compressor Group
| 1P***80 | Compressor Group-Refrigerant | 1 |
6k9586 Counterweight Group--3200 Pounds
| 6K***86 | Counterweight Group | 1 |
7k7680 Counterweight Group--8000 Pounds
| 7K***80 | Counterweight Group | 1 |
6k9585 Counterweight Group--4800 Pounds
| 6K***85 | Counterweight Group | 1 |
7k3516 Counterweight Group--8000 Pounds--Type 2
| 7K***16 | Counterweight Group | 1 |
7k3516 Counterweight Group--8000 Pounds--Type 1
| 7K***16 | Counterweight Group | 1 |
7k7683 Counterweight Group--4000 Pounds
| 7K***83 | Counterweight Group | 1 |
8k9790 Cutting Edge Group--Field Installation
| 8K***90 | Cutting Edge Group | 1 |
7k5455 Cutting Edge Group--Field Installation
| 7K***55 | Cutting Edge Group | 1 |
8k9789 Cutting Edge Group
| 8K***89 | Cutting Edge Group | 1 |
7k5442 Cutting Edge Group--Field Installation
| 7K***42 | Cutting Edge Group | 1 |
2s300 Differential Group--Type 3
| 2S***00 | Differential Group | 1 |
2s300 Differential Group--Type 4
| 2S***00 | Differential Group | 1 |
2s300 Differential Group--Type 2
| 2S***00 | Differential Group | 1 |
2s300 Differential Group--Type 1
| 2S***00 | Differential Group | 1 |
7k1834 Emergency Start Receptacle Group
| 7K***34 | Emergency Start Receptacle Group | 1 |
8k6142 Emergency Start Receptacle Group
| 8K***42 | Emergency Start Receptacle Group | 1 |
6k9061 Spill Plate Extension Group
| 6K***61 | Extension Group | 1 |
1p5450 Field Conversion Group
| 1P***50 | Field Conversion Group | 1 |
8f9866 Grease Gun
| 8F***66 | Grease Gun As | 1 |
7k368 Air Conditioning Arrangement
| 6K***68 | Air Conditioning Group | 1 |
| 7K***68 | Heater As | 1 |
| 8S***54 | Refrigerant Compressor And Mounting Group | 1 |
6k9619 Heater Group--Type 2
| 6K***19 | Heater Group | 1 |
6k9619 Heater Group--Type 1
| 6K***19 | Heater Group | 1 |
2p5241 Jacket Water Heater Group
| 2P***41 | Jacket Water Heater Group | 1 |
1p7114 Lifting Eye Group
| 1P***14 | Lifting Eye Group | 1 |
Name Plates And Transfers
| 1H***71 | Plate Ether Aid Instructions | 1 |
| 1S***12 | Plate; Transportation Notice Below Cab Door Sil Near L.H. Side Of Platform Support | 1 |
| 2M***31 | Plate; Serial Number On R.H. Side Of Cylinder Block And R.H. Side Of Loader Frame | 2 |
9s3419 Radiator Top Tank Group--Type 1
| 9S***19 | Radiator Top Tank Group | 1 |
9s3419 Radiator Top Tank Group--Type 2
| 9S***19 | Radiator Top Tank Group | 1 |
8s7254 Refrigerant Compressor And Mounting Group--Type 1
| 8S***54 | Refrigerant Compressor And Mounting Group | 1 |
8s7254 Refrigerant Compressor And Mounting Group--Type 3
| 8S***54 | Refrigerant Compressor And Mounting Group | 1 |
8s7254 Refrigerant Compressor And Mounting Group--Type 2
| 8S***54 | Refrigerant Compressor And Mounting Group | 1 |
9s3769 Refrigerant Compressor Group
| 9S***69 | Refrigerant Compressor Group | 1 |
1v5747 Seat Assembly
| 1V***47 | Seat Assembly | 1 |
7k5547 Seat Assembly
| 7K***47 | Seat Assembly | 1 |
2v7893 Seat Group
| 2V***93 | Seat Group | 1 |
3v8715 Seat Group
| 3V***15 | Seat Group; Basic Seat Group--Suspended | 1 |
9k134 Spill Plate Extension Group
| 9K***34 | Spill Plate Extension Group | 1 |
2v7961 Seat Suspension Assembly
| 2V***61 | Suspension As-Seat | 1 |
7k8525 Suspension Seat Group--Type 3
| 7K***25 | Suspension Seat Group | 1 |
7k8525 Suspension Seat Group--Type 1
| 7K***25 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 3
| 7K***75 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 2
| 7K***75 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 4
| 7K***75 | Suspension Seat Group | 1 |
7k8525 Suspension Seat Group--Type 4
| 7K***25 | Suspension Seat Group | 1 |
7k8525 Suspension Seat Group--Type 2
| 7K***25 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 1
| 7K***75 | Suspension Seat Group | 1 |
8j9842 Tip Group--Long
| 8J***42 | Tip Group-Long; -J-550, Heavy-Duty | 1 |
5s6021 Tool Group
| 5S***21 | Tool Group | 1 |
9s7978 Tool Group
| 9S***78 | Tool Group-Hand | 1 |
Tools (9m9053 N/S)
6k3766 Tooth Group--Long Tip
| 6K***66 | Tooth Group | 1 |
6k3765 Tooth Group--Short Tip
| 6K***65 | Tooth Group | 1 |
2s1068 Differential And Gear Group--Torque Proportioning--Type 2
| 2S***68 | Torque Proportioning Differential And Gear Group | 1 |
2s1068 Differential And Gear Group--Torque Proportioning--Type 1
| 2S***68 | Torque Proportioning Differential And Gear Group | 1 |
Diesel Engine
Air Cleaner
Alternator--24 Volt, 50 Ampere
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2--Type 1
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2--Type 2
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2--Type 3
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2--Type 2
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2--Type 3
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2--Type 1
| 5S***88 | Alternator Group-Charging | 1 |
Battery, Wiring And Lighting System (6k9577 N/S)--24 Volt--Top View--Part 5 Of 6
| 6K***77 | Battery, Wiring And Lighting System | 1 |
Battery, Wiring And Lighting System (6k9577 N/S)--24 Volt--Side View--Part 1 Of 6
| 6K***77 | Battery, Wiring And Lighting System | 1 |
Battery, Wiring And Lighting System (6k9577 N/S)--24 Volt--Top View--Part 4 Of 6
| 6K***77 | Battery, Wiring And Lighting System | 1 |
Battery, Wiring And Lighting System (6k9577 N/S)--24 Volt--Part 6 Of 6
| 6K***77 | Battery, Wiring And Lighting System | 1 |
Battery, Wiring And Lighting System (6k9577 N/S)--24 Volt--Top View--Part 3 Of 6
| 6K***77 | Battery, Wiring And Lighting System | 1 |
Battery, Wiring And Lighting System (6k9577 N/S)--24 Volt--Side View--Part 2 Of 6
| 6K***77 | Battery, Wiring And Lighting System | 1 |
6n1675 Bearing And Rod Kit--Field Installation
| 4N***86 | Tube Assembly | 12 |
| 4N***00 | Bearing Connecting Rod | 12 |
| 4N***01 | Rod Assembly - Odd Cylinder; (Odd Cyl.) | 6 |
Blower Fan (9s2334 N/S)
| 9S***34 | Blower Fan | 1 |
Breather (8s6180 N/S)
| 8S***80 | Breather Group; Breather And Fumes Disposal Group | 1 |
Camshaft (5s3416 N/S)--Part 1 Of 2
| 5S***16 | Camshaft Group; Camshaft Group | 1 |
Camshaft (5s3416 N/S)--Part 2 Of 2
| 5S***16 | Camshaft Group; Camshaft Group | 1 |
2s708 Connecting Rod And Piston Group--12 Required
| 2S***08 | Connecting Rod And Piston; Connecting Rod And Piston Group | 1 |
Fuel Ratio Control (8s6419 N/S)--With Override
| 8S***19 | Control Group-Fuel Ratio; Fuel Ratio Control Group (With Override) | 1 |
2s6096 Protection Cover Group
| 2S***96 | Cover Group-Protection; Protection Cover Group-- Radiator Cap | 1 |
2s3025 Protection Cover Group--Oil Filler
| 2S***25 | Cover Group-Protection; Protection Cover Group | 1 |
Crankshaft Bearing Replacement Groups
5s3418 Crankshaft Group
| 5S***18 | Crankshaft Group; Crankshaft Group | 1 |
9s2002 Crankshaft Group--Type 1
| 9S***02 | Crankshaft Group | 1 |
9s2002 Crankshaft Group--Type 2
| 9S***02 | Crankshaft Group | 1 |
Crankshaft Replacement Bearings
| 6N***43 | Bearing--Main (.050 In. Undersize) | 7 |
| 6N***44 | Bearing--Main (.025 In. Undersize) | 7 |
| 6N***45 | Bearing Main (.025 In. Oversize O.D.-Standard I.D.) | 7 |
Cylinder Block, Covers And Support (5s3130 N/S)--Rear View--Part 2 Of 3
| 5S***30 | Cylinder Block & Cover Group; Cylinder Block, Covers & Support Group | 1 |
Cylinder Block, Covers And Support (5s3130 N/S)--Front View--Part 1 Of 3
| 5S***30 | Cylinder Block & Cover Group; Cylinder Block, Covers & Support Group | 1 |
Cylinder Block, Covers And Support (5s3130 N/S)--Side View--Part 3 Of 3
| 5S***30 | Cylinder Block & Cover Group; Cylinder Block, Covers & Support Group | 1 |
5s3091 Cylinder Block Assembly--Type 1
| 5S***91 | Cylinder Block Assembly | 1 |
5s3091 Cylinder Block Assembly--Type 2
| 5S***91 | Cylinder Block Assembly | 1 |
Cylinder Block Assembly (8s6702 N/S)--Type 2
| 8S***02 | Cylinder Block Assembly | 1 |
Cylinder Block Assembly (8s6702 N/S)--Type 1
| 8S***02 | Cylinder Block Assembly | 1 |
Cylinder Block Assembly (8s6702 N/S)
| 8S***02 | Cylinder Block Assembly | 1 |
Cylinder Block, Covers And Support--Side View--Part 3 Of 3
Cylinder Block, Covers And Support--Rear View--Part 2 Of 3
Cylinder Block, Covers And Support--Front View--Part 1 Of 3
Cylinder Head And Valve Mechanism (5s3119 N/S)
| 5S***19 | Cylinder Head & Valve Group; Cylinder Head & Valve Mechanism Group | 1 |
5s3419 Drive Pulley And Damper Group
| 5S***19 | Damper & Pulley Group; Drive Pulley And Damper Group | 1 |
Drive Pulley And Damper (5s3419 N/S)
| 5S***19 | Damper & Pulley Group; Drive Pulley And Damper Group | 1 |
9h6338 Dash Lamp Assembly--24 Volt--6 Inch Lead
| 1M***85 | Dash Lamp Assembly | 1 |
9f740 Discharger
| 9F***40 | Discharger Group | 1 |
Engine Oil Cooler And Water Lines--Side View--Part 2 Of 2
Engine Oil Cooler And Water Lines--Front View--Part 1 Of 2
6k9451 Ether Starting Aid Group
| 6K***51 | Ether Starting Aid Group | 1 |
Exhaust Muffler (8s2377 N/S)
| 8S***77 | Exhaust Muffler | 1 |
Fan (5s3371 N/S)--Reversible Blade
8s6494 Fan Assembly--Reversible Blade
| 8S***94 | Fan Assembly | 1 |
Fan Drive
8s6404 Fan Drive Group
| 8S***04 | Fan Drive Group | 1 |
8s2391 Oil Filter Assembly
| 8S***91 | Filter As-Oil | 1 |
8s2812 Fuel Filter Group
| 8S***12 | Filter Group-Fuel; Fuel Filter Group | 1 |
Fuel Filter (8s2812 N/S)
| 8S***12 | Filter Group-Fuel; Fuel Filter Group | 1 |
7s7052 Oil Filter Group
| 7S***52 | Filter Group-Oil | 1 |
8s5114 Flywheel Group
| 8S***14 | Flywheel Group; Flywheel Group | 1 |
Fuel Injection Valves And Lines (1p7746 N/S)--Part 1 Of 2
| 1P***46 | Fuel Inj Misc Group; Fuel Injection Valves & Lines Group | 1 |
Fuel Injection Valves And Lines (1p7746 N/S)--Part 2 Of 2
| 1P***46 | Fuel Inj Misc Group; Fuel Injection Valves & Lines Group | 1 |
9s8987 Fuel Pump Housing Group--Part 1 Of 2
| 9S***87 | Fuel Injection Pump Group | 1 |
9s8987 Fuel Pump Housing Group--Part 2 Of 2
| 9S***87 | Fuel Injection Pump Group | 1 |
Fuel Injection Valves And Lines (5s3420 N/S)--Part 1 Of 2
| 5S***20 | Fuel Injection Valves And Lines | 1 |
Fuel Injection Valves And Lines (5s3420 N/S)--Part 2 Of 2
| 5S***20 | Fuel Injection Valves And Lines | 1 |
9s8022 Fuel Priming Pump Assembly
| 9S***22 | Fuel Priming Pump Assembly | 1 |
1p2297 Fuel Priming Pump Assembly
| 1P***97 | Fuel Priming Pump Assembly | 1 |
6n9740 Fuel Priming Pump Barrel Assembly
| 6N***40 | Fuel Priming Pump Barrel Assembly | 1 |
8s2727 Fuel Pump Housing Group--Part 1 Of 2
| 8S***27 | Fuel Pump Housing Group | 1 |
8s2727 Fuel Pump Housing Group--Part 2 Of 2
| 8S***27 | Fuel Pump Housing Group | 1 |
Fuel Pump Housing, Drive And Governor (5s3421 N/S)
| 5S***21 | Fuel Pump Housing, Drive And Governor | 1 |
Fuel Ratio Control (3s8429 N/S)--With Override
| 3S***29 | Fuel Ratio Control | 1 |
Fumes Disposal (5s3126 N/S)
| 5S***26 | Fumes Disposal | 1 |
Gasket Kits
| 3P***97 | Torque Converter | 0 |
| 3P***98 | Power Train Lubrication System | 0 |
| 3P***99 | Transmission | 0 |
7s6640 Water Pump, Camshaft, Fuel Pump & Oil Pump
| 7S***40 | Gear Group-Idler; Water Pump, Camshaft, Fuel Pump And Oil Pump Idler Gear Group | 1 |
Glow Plug And Wiring--24 Volt
Governor (1p7747 N/S)--Part 2 Of 3--Type 1
| 1P***47 | Governor | 1 |
1p7747 Governor Group--Part 1 Of 3--Type 3
| 1P***47 | Governor | 1 |
1p7747 Governor Group--Part 3 Of 3--Type 3
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 2 Of 3--Type 2
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 1 Of 3--Type 2
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 3 Of 3--Type 2
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 3 Of 3--Type 1
| 1P***47 | Governor | 1 |
1p7747 Governor Group--Part 2 Of 3--Type 3
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 1 Of 3--Type 1
| 1P***47 | Governor | 1 |
Governor Control--Type 1
Governor Control (4s1458 N/S)--Type 2
| 4S***58 | Governor Control | 1 |
3s6569 Governor Group--Part 2 Of 3--Type 2
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 3 Of 3--Type 2
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 2 Of 3--Type 1
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 1 Of 3--Type 1
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 1 Of 3--Type 2
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 3 Of 3--Type 1
| 3S***69 | Governor Group | 1 |
7k9953 Horn Group
| 7K***53 | Horn Group | 1 |
7k9952 Horn Group
| 7K***52 | Horn Group | 1 |
9k2747 Hydraulic Cooler Lines Conversion Group
| 9K***47 | Hydraulic Cooler Lines Conversion Group | 1 |
Hydraulic Oil Cooler (9s65 N/S)
| 9S***65 | Hydraulic Oil Cooler | 1 |
9s8911 Hydraulic Oil Cooler Group
| 9S***11 | Hydraulic Oil Cooler Group | 1 |
Hydraulic Oil Cooler Lines
7m7147 Stop And Tail Lamp Assembly--24 Volt
| 7M***47 | Lamp As-Stop & Tail | 1 |
1m3379 Head Lamp Assembly--24 Volt--Type 2
| 1M***79 | Lamp Group | 1 |
1m1882 Flood Lamp Assembly--24 Volt--Type 1
| 1M***82 | Lamp Group | 1 |
1m1882 Flood Lamp Assembly--24 Volt--Type 2
| 1M***82 | Lamp Group | 1 |
1m3379 Head Lamp Assembly--24 Volt--Type 1
| 1M***79 | Lamp Group | 1 |
Oil Lines (5s3117 N/S)--Side View--Part 2 Of 3
| 5S***17 | Lines Group-Oil; Oil Lines Group | 1 |
Oil Lines (5s3117 N/S)--Rear View--Part 3 Of 3
| 5S***17 | Lines Group-Oil; Oil Lines Group | 1 |
Oil Lines (5s3117 N/S)--Side View--Part 1 Of 3
| 5S***17 | Lines Group-Oil; Oil Lines Group | 1 |
Manifolds (7s679 N/S)--End View--Part 2 Of 2
| 7S***79 | Manifold Group; Manifold Group | 1 |
7s679 Manifolds Group--End View--Part 2 Of 2
| 7S***79 | Manifold Group; Manifold Group | 1 |
Manifolds (7s679 N/S)--Side View--Part 1 Of 2
| 7S***79 | Manifold Group; Manifold Group | 1 |
7s679 Manifolds Group--Side View--Part 1 Of 2
| 7S***79 | Manifold Group; Manifold Group | 1 |
7s9896 Oil Filter Assembly
| 7S***96 | Oil Filter Assembly | 1 |
5s1565 Oil Pump Assembly
| 5S***65 | Oil Pump Assembly | 1 |
3s8295 Oil Pump Group
| 3S***95 | Oil Pump Group | 1 |
8s2793 Fuel Transfer Pump Group
| 8S***93 | Pump Group-Fuel Transfer | 1 |
Radiator (9s1106 N/S)--Rear View--Part 1 Of 2
| 9S***06 | Radiator | 1 |
Radiator (5s2924 N/S)--Rear View--Part 1 Of 2
| 5S***24 | Radiator | 1 |
Radiator (9s1106 N/S)--Side View--Part 2 Of 2
| 9S***06 | Radiator | 1 |
Radiator (5s2924 N/S)--Side View--Part 2 Of 2
| 5S***24 | Radiator | 1 |
Service Meter (5s3424 N/S)
| 5S***24 | Service Meter | 1 |
Service Meter (1p3173 N/S)
| 1P***73 | Service Meter | 1 |
4s7893 Service Meter Group
| 4S***93 | Service Meter Group | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 2 Of 2--Type 2
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 1 Of 2--Type 2
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 1 Of 2--Type 1
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 2 Of 2--Type 1
| 5L***48 | Starting Motor As-Electric | 1 |
Electric Starter (5s6436 N/S)--24 Volt
| 5S***36 | Starting Motor Group-Electric | 1 |
2s9519 Rack Stop Group
| 2S***19 | Stop Group-Rack | 1 |
7h7290 Disconnect Switch Assembly
| 7H***90 | Switch As-Disconnect | 1 |
3k1650 Light Switch Assembly
| 3K***50 | Switch As-Light; -Floodlights | 1 |
4m1812 Solenoid Switch Assembly
| 4M***12 | Switch As-Solenoid | 1 |
7s8901 Turbocharger Assembly--R.H.
| 7S***01 | Turbocharger Assembly--R.H., L.H. | 1 |
4s9498 Variable Timing Drive Assembly
| 4S***98 | Varible Timing Drive Assembly | 1 |
5s3423 Water Pump Group
| 5S***23 | Water Pump Group | 1 |
Wiring Diagram--24 Volt System--Part 2 Of 2
Wiring Diagram--24 Volt System--Part 1 Of 2
6k9980 Wiring Harness Assembly
| 6K***80 | Wiring Harness Assembly | 1 |
6k9812 Wiring Harness Assembly
| 6K***12 | Wiring Harness Assembly | 1 |
6s1190 Wiring Harness Assembly
| 6S***90 | Wiring Harness Assembly | 1 |
6k9814 Wiring Harness Assembly
| 6K***14 | Wiring Harness Assembly | 1 |
7k8129 Wiring Harness Assembly
| 7K***29 | Wiring Harness Assembly | 1 |
Hydraulic Control
7j7101 Actuator Lift Valve Group
| 7J***01 | Actuator Lift Valve Group | 1 |
6j3200 Actuator Lift Valve Group
| 6J***00 | Actuator Lift Valve Group | 1 |
6j3210 Actuator Tilt Valve Group
| 6J***10 | Actuator Tilt Valve Group | 1 |
6j7560 Control Valve Group--Side View--Part 1 Of 2
| 6J***60 | Control Valve Group | 1 |
6j7910 Control Valve Group--Side View--Part 1 Of 2
| 6J***10 | Control Valve Group | 1 |
6j7910 Control Valve Group--Top View--Part 2 Of 2
| 6J***10 | Control Valve Group | 1 |
6j7560 Control Valve Group--Top View--Part 2 Of 2
| 6J***60 | Control Valve Group | 1 |
5d1900 Protection Cover Group
| 5D***00 | Cover Group-Protection; Protection Cover Group-- Hydraulic Tank Cap | 1 |
3j8877 Differential Tilt Relief Valve Group
| 3J***77 | Differential Tilt Relief Valve Group | 1 |
9k2259 Front Hydraulic Filters Conversion Group--Part 2 Of 2
| 9K***59 | Front Hydraulic Filters Conversion Group | 1 |
9k2259 Front Hydraulic Filters Conversion Group--Part 1 Of 2
| 9K***59 | Front Hydraulic Filters Conversion Group | 1 |
Front Tank And Valve (6j7561 N/S)--As Viewed From Bottom Of Machine--Part 3 Of 3
| 6J***61 | Front Tank And Valve | 1 |
Front Tank And Valve (6j7561 N/S)--As Viewed From R.H. Side Of Machine--Part 1 Of 3
| 6J***61 | Front Tank And Valve | 1 |
Front Tank And Valve (7j8992 N/S)--As Viewed From R.H. Side Of Machine--Part 1 Of 3
| 7J***92 | Front Tank And Valve | 1 |
Front Tank And Valve (6j7561 N/S)--As Viewed From Bottom Of Machine--Part 2 Of 3
| 6J***61 | Front Tank And Valve | 1 |
Front Tank And Valve (7j8992 N/S)--As Viewed From Bottom Of Machine--Part 2 Of 3
| 7J***92 | Front Tank And Valve | 1 |
Front Tank And Valve (6j7561 N/S)--As Viewed From Right Hand Side Of Machine--Part 1 Of 3
| 6J***61 | Front Tank And Valve | 1 |
Front Tank And Valve (7j8992 N/S)--As Viewed From Bottom Of Machine--Part 3 Of 3
| 7J***92 | Front Tank And Valve | 1 |
Hand Control (6k7150 N/S)--Side View--Part 1 Of 2
| 6K***50 | Hand Control | 1 |
Hand Control (6k7150 N/S)--Top View--Part 2 Of 2
| 6K***50 | Hand Control | 1 |
6s38 Hydraulic Oil Filter Group--Type 1
| 6S***38 | Hydraulic Oil Filter Group | 1 |
6s38 Hydraulic Oil Filter Group--Type 2
| 6S***38 | Hydraulic Oil Filter Group | 1 |
Hydraulic Pump And Lines (6k6936 N/S)--As Viewed From Right Hand Side Of Machine--Part 1 Of 2
| 6K***36 | Hydraulic Pump And Lines | 1 |
Hydraulic Pump And Lines (6k6936 N/S)--As Viewed From Right Hand Side Of Machine--Part 2 Of 2
| 6K***36 | Hydraulic Pump And Lines | 1 |
Hydraulic Pump And Lines (8k5252 N/S)--As Viewed From Right Hand Side Of Machine--Part 1 Of 2
| 8K***52 | Hydraulic Pump And Lines | 1 |
Hydraulic Pump And Lines--As Viewed From Right Hand Side Of Machine--Part 2 Of 2
| 8K***52 | Hydraulic Pump And Lines | 1 |
7j594 Hydraulic Pump Assembly--Type 2
| 7J***94 | Hydraulic Pump Assembly | 1 |
7j3656 Hydraulic Pump Assembly
| 7J***56 | Hydraulic Pump Assembly | 1 |
7j594 Hydraulic Pump Assembly--Type 1
| 7J***94 | Hydraulic Pump Assembly | 1 |
6j9513 Hydraulic Valve Group
| 6J***13 | Hydraulic Valve Group | 1 |
6j8497 Lift Pilot Control Valve Group
| 6J***97 | Lift Pilot Control Valve Group | 1 |
7j5387 Pilot Control Valve Group
| 7J***87 | Pilot Control Valve Group | 1 |
Rear Tank And Filter (6j8096 N/S)--As Viewed From Front Of Machine--Part 2 Of 3
| 6J***96 | Rear Tank And Filter | 1 |
Rear Tank And Filter (6j8096 N/S)--As Viewed From Front Of Machine--Part 3 Of 3
| 6J***96 | Rear Tank And Filter | 1 |
Rear Tank And Filter (6j8096 N/S)--As Viewed From Left Hand Side Of Machine--Part 1 Of 3
| 6J***96 | Rear Tank And Filter | 1 |
Rear Tank Filler Tube And Mounting
6j7559 Relief Valve Group--Type 2
| 6J***59 | Relief Valve Group | 1 |
4s446 Relief Valve Group
| 4S***46 | Relief Valve Group | 1 |
6j7559 Relief Valve Group--Type 1
| 6J***59 | Relief Valve Group | 1 |
6j8445 Tilt Pilot Control Valve Group
| 6J***45 | Tilt Pilot Control Valve Group | 1 |
7j7080 Tilt Pilot Control Valve Group
| 7J***80 | Tilt Pilot Control Valve Group | 1 |
3j8878 Tilt Relief Valve Group
| 3J***78 | Tilt Relief Valve Group | 1 |
6j7911 Tilt Relief Valve Group
| 6J***11 | Tilt Relief Valve Group | 1 |
9j5056 Vane Pump Group
| 9J***56 | Vane Pump Group | 1 |
Transmission And Chassis
7j2589 Accumulator Charging Valve Group
| 7J***89 | Accumulator Charging Valve Group | 1 |
6j8515 Accumulator Group
| 6J***15 | Accumulator Group | 1 |
7j3614 Accumulator Group
| 7J***14 | Accumulator Group | 1 |
7k3635 Accumulator Service Group
| 7K***35 | Accumulator Service Group | 1 |
7j7491 Body Group--Type 2
| 7J***91 | Body Group | 1 |
7j7491 Body Group
| 7J***91 | Body Group | 1 |
6j431 Body Group
| 6J***31 | Body Group | 1 |
7j7491 Body Group--Type 1
| 7J***91 | Body Group | 1 |
9s2715 Brake Adjuster Assembly
| 9S***15 | Brake Adjuster Assembly | 1 |
7k5990 Brake Adjuster Assembly
| 7K***90 | Brake Adjuster Assembly | 1 |
7k8379 Brake Adjuster Assembly
| 7K***79 | Brake Adjuster Group | 1 |
7j7024 Brake Adjuster Vent Lines Conversion Group
| 7J***24 | Brake Adjuster Vent Lines Conversion Group | 1 |
Brake Control (6k9571 N/S)
| 6K***71 | Brake Control | 1 |
Brake Valve And Lines (6k9645 N/S)--Part 4 Of 4
| 6K***45 | Brake Valve And Lines | 1 |
Brake Valve And Lines (6k9645 N/S)--Part 2 Of 4
| 6K***45 | Brake Valve And Lines | 1 |
Brake Valve And Lines (6k9645 N/S)--Part 3 Of 4
| 6K***45 | Brake Valve And Lines | 1 |
Brake Valve And Lines (6k9645 N/S)--Part 1 Of 4
| 6K***45 | Brake Valve And Lines | 1 |
5j2050 Brake Valve Group
| 5J***50 | Brake Valve Group | 1 |
Bumper And Drawbar
Cab (6k9680 N/S)--Part 1 Of 2
| 6K***80 | Cab; Cab Group | 1 |
Cab (6k9680 N/S)--Part 2 Of 2
| 6K***80 | Cab; Cab Group | 1 |
Cab Lighting System (6k9639 N/S)--24 Volt
| 6K***39 | Cab Lighting System | 1 |
1p8678 Cap Group
| 1P***78 | Cap Group-Protection; Protection Cover Group Fuel Tank Cap | 1 |
7k8204 Conversion Group
| 7K***04 | Conversion Group | 1 |
2s6444 Converter Control Valve Group
| 2S***44 | Converter Control Valve Group | 1 |
9m8716 Differential And Gear Group
| 9M***16 | Differential And Gear Group | 1 |
Drive Shaft (4s1487 N/S)--Part 1 Of 2
| 4S***87 | Drive Shaft | 1 |
Drive Shaft (4s1487 N/S)--Part 2 Of 2
| 4S***87 | Drive Shaft | 1 |
Fenders
8h7204 Fuel Filter Group
| 8H***04 | Filter Group-Fuel | 1 |
7j680 Hydraulic Oil Filter Group
| 7J***80 | Filter Group-Hydraulic Oil | 1 |
Final Drive, Wheel And Brake--33.25 X 35 Tubeless Tires--4 Required
1v5648 Firewall Extension Modification Group--Field Installation
| 1V***48 | Firewall Extension Modification Group | 1 |
1v5609 Firewall Extension Modification Group--Field Installation
| 1V***09 | Firewall Extension Modification Group | 1 |
4k8033 Flood Lamp Assembly--24 Volt
| 4K***33 | Flood Lamp Assembly | 1 |
Floor And Console Plates (6k9248 N/S)
| 6K***48 | Floor And Console Plates | 1 |
Floor Mat (6k9624 N/S)
| 6K***24 | Floor Mat | 1 |
1v4638 Flywheel Housing Scavenge Service Group--Field Installation
| 1V***38 | Flywheel Housing Scavenge Service Group | 1 |
Front And Rear Washer (7k4217 N/S)
| 7K***17 | Front And Rear Washer | 1 |
Front Axle (6k5401 N/S)
| 6K***01 | Front Axle | 1 |
6k5401 Front Axle Group
| 6K***01 | Front Axle | 1 |
Front Differential And Bevel Gear (4s1490 N/S)
| 4S***90 | Front Differential And Bevel Gear | 1 |
Front Guard (6k7966 N/S)
| 6K***66 | Front Guard | 1 |
Front Guard (7k9128 N/S)
| 7K***28 | Front Guard | 1 |
Front Washer (6k9626 N/S)
| 6K***26 | Front Washer | 1 |
Fuel System (4s1464 N/S)--220 U.S. Gallons--Part 1 Of 2
| 4S***64 | Fuel System | 1 |
Fuel System (4s1464 N/S)--220 U.S. Gallon--Part 2 Of 2
| 4S***64 | Fuel System | 1 |
Fuel System (4s1464 N/S)--220 U.S. Gallon--Part 1 Of 2
| 4S***64 | Fuel System | 1 |
Gauges And Lines (4s1463 N/S)--Rear Half-Part 2 Of 2
| 4S***63 | Gauges And Lines | 1 |
Gauges And Lines (4s1463 N/S)--Front Half-Part 1 Of 2
| 4S***63 | Gauges And Lines | 1 |
Gauges And Lines (4s1463 N/S)--Front Half--Part 1 Of 2
9j1783 Gear Pump Group
| 9J***83 | Gear Pump Group | 1 |
7k9769 Guard Group
| 7K***69 | Guard Group | 1 |
Hood And Guard--Part 1 Of 2
Hood And Guard (6k9236 N/S)--Part 1 Of 2
| 6K***36 | Hood And Guard | 1 |
Hood And Guard (6k9236 N/S)--Part 2 Of 2
| 6K***36 | Hood And Guard | 1 |
Hood And Guard - Part 2 Of 2
7k9032 Housing And Transmission Drain Lines Group--Field Installation
| 7K***32 | Housing And Transmission Drain Lines Group | 1 |
7j600 Hydraulic Pump Assembly
| 7J***00 | Hydraulic Pump Assembly | 1 |
Loader Frame (6k7126 N/S)
| 6K***26 | Loader Frame | 1 |
8s505 Lubrication Relief Valve Group
| 8S***05 | Lubrication Relief Valve Group | 1 |
Mirror (6k9690 N/S)--Rear Vision--2 Required
| 6K***90 | Mirror | 1 |
2s1443 Neutralizer Valve Group
| 2S***43 | Neutralizer Valve Group | 1 |
8s4479 Oil Pump Group
| 8S***79 | Oil Pump Group | 1 |
1p988 Oil Pump Group
| 1P***88 | Oil Pump Group | 1 |
Parking Brake Control (6k9296 N/S)
| 6K***96 | Parking Brake Control | 1 |
3s7443 Parking Brake Valve Group
| 3S***43 | Parking Brake Valve Group | 1 |
5s1060 Planetary Transmission Group--Part 2 Of 2
| 5S***60 | Planetary Transmission | 1 |
5s1060 Planetary Transmission Group--Part 1 Of 2
| 5S***60 | Planetary Transmission | 1 |
Platform And Grab Iron (6k9547 N/S)--Part 1 Of 2
| 6K***47 | Platform And Grab Iron | 1 |
Platform And Grab Iron (6k9547 N/S)--Part 2 Of 2
| 6K***47 | Platform And Grab Iron | 1 |
Platform Support (6k8948 N/S)
| 6K***48 | Platform Support | 1 |
Power Take-Off (4s1483 N/S)
| 4S***83 | Power Take-Off | 1 |
9s4345 Pressure Control Group
| 9S***45 | Pressure Control Group | 1 |
7s8556 Pressure Control Valve Group
| 7S***56 | Pressure Control Group | 1 |
Pressurizer--Part 1 Of 2
Pressurizer--Part 2 Of 2
5s8033 Cap Group
| 5S***33 | Protection Cover Group | 1 |
1s6307 Protection Cover Group
| 1S***07 | Protection Cover Group | 1 |
Pump Drive (4s1485 N/S)
| 4S***85 | Pump Drive | 1 |
7s8555 Range Transmission Arrangement
| 7S***55 | Range Transmission Arrangement | 1 |
Rear Axle And Trunnion (4s1492 N/S)--Part 1 Of 2
| 4S***92 | Rear Axle And Trunnion | 1 |
Rear Axle And Trunnion (4s1492 N/S)--Part 2 Of 2
| 4S***92 | Rear Axle And Trunnion | 1 |
Rear Differential And Bevel Gear
Rear Differential And Bevel Gear (7k768 N/S)
| 7K***68 | Rear Differential And Bevel Gear | 1 |
Rear Frame (4s1461 N/S)--Part 1 Of 2
| 4S***61 | Rear Frame | 1 |
Rear Frame--Part 2 Of 2
| 4S***61 | Rear Frame | 1 |
Rear Washer (6k9636 N/S)
| 6K***36 | Rear Washer | 1 |
Rear Window Wiper (6k9637 N/S)
| 6K***37 | Rear Window Wiper | 1 |
4j4087 Rotary Actuator Housing Group
| 4J***87 | Rotary Actuator Housing Group | 1 |
8m6334 Safety Reset And Converter Hold Valve Group
| 8M***34 | Safety Reset And Converter Hold Valve Group | 1 |
Seat (4s1477 N/S)
9d6313 Seat Belt Repair Group
| 2A***11 | Washer; (5.5x12.3x0.8-mm Thk) | 8 |
| 4B***39 | Rivet Pad To Belt | 4 |
| 9D***68 | Pad | 2 |
3k8461 Seat Assembly
| 3K***61 | Seat Group; Basic Seat Group--Static | 1 |
9m4351 Selector Valve Group
| 9M***51 | Selector Valve Group | 1 |
7k8651 Service Group--Tube To Hose
| 7K***51 | Service Group | 1 |
8k8655 Service Group
| 8K***55 | Service Group | 1 |
7k8701 Service Group--Tube To Hose
| 7K***01 | Service Group | 1 |
6k9644 Sliding Vertical Window Assembly
| 6K***44 | Sliding Vertical Window Assembly | 1 |
5j6735 Steering Cylinder Group--5.50" Bore X 33.15" Stroke--2 Required
| 5J***35 | Steering Cylinder Group | 1 |
Steering Mechanism (6k8775 N/S)--Part 1 Of 3
| 6K***75 | Steering Mechanism | 1 |
Steering Mechanism (6k8775 N/S)--Part 2 Of 3
| 6K***75 | Steering Mechanism | 1 |
Steering Mechanism (6k8775 N/S)--Part 3 Of 3
| 6K***75 | Steering Mechanism | 1 |
5j8388 Steering Valve Group
| 5J***88 | Steering Valve Group | 1 |
Steering Valve, Pump And Lines (6k9292 N/S)--Part 1 Of 3
| 6K***92 | Steering Valve, Pump And Lines | 1 |
Steering Valve, Pump And Lines (6k9292 N/S)--Part 3 Of 3
| 6K***92 | Steering Valve, Pump And Lines | 1 |
Steering Valve, Pump And Lines (6k9292 N/S)--Part 2 Of 3
| 6K***92 | Steering Valve, Pump And Lines | 1 |
Torque Converter (7s8585 N/S)
| 7S***85 | Torque Converter | 1 |
1t840 Torque Converter Group
| 1T***40 | Torque Converter Group | 1 |
1t995 Torque Converter Group--Type 1
| 1T***95 | Torque Converter Group | 1 |
1t995 Torque Converter Group--Type 2
| 1T***95 | Torque Converter Group | 1 |
Torque Converter Oil Cooler
Tractor Guard (6k9241 N/S)
| 6K***41 | Tractor Guard | 1 |
Transfer Gears (4s1484 N/S)--Part 2 Of 3
| 4S***84 | Transfer Gears | 1 |
Transfer Gears (4s1484 N/S)--Part 3 Of 3
| 4S***84 | Transfer Gears | 1 |
Transfer Gears (4s1484 N/S)--Part 1 Of 3
| 4S***84 | Transfer Gears | 1 |
Transfer Gears (4s1489 N/S)--Part 2 Of 3
| 4S***84 | Transfer Gears | 1 |
Transmission Control (6k8697 N/S)
| 6K***97 | Transmission Control | 1 |
8s666 Transmission Filter Group
| 8S***66 | Transmission Filter Group | 1 |
Transmission Hydraulic Control (9s2764 N/S)--Side View--Part 2 Of 2
| 9S***64 | Transmission Hydraulic Control | 1 |
Transmission Hydraulic Control (9s2764 N/S)--Top View--Part 1 Of 2
| 9S***64 | Transmission Hydraulic Control | 1 |
4j4007 Transmission Neutralizer Valve Group
| 4J***07 | Transmission Neutralizer Valve Group | 1 |
7j2592 Transmission Neutralizer Valve Group
| 7J***92 | Transmission Neutralizer Valve Group | 1 |
Transmission Pump And Lines (6k9892 N/S)--Top View--Part 3 Of 4
| 6K***92 | Transmission Pump And Lines | 1 |
Transmission Pump And Lines (6k9892 N/S)--As Viewed From Right Hand Side Of Machine--Part 1 Of 4
| 6K***92 | Transmission Pump And Lines | 1 |
Transmission Pump And Lines (6k9892 N/S)--As Viewed From Right Hand Side Of Machine--Part 2 Of 4
| 6K***92 | Transmission Pump And Lines | 1 |
Transmission Pump And Lines (6k9892 N/S)--Top View--Part 4 Of 4
| 6K***92 | Transmission Pump And Lines | 1 |
Transmission Pump And Lines (6k9892 N/S)--As Viewed From R.H. Side Of Machine-Part 1 Of 4
| 6K***92 | Transmission Pump And Lines | 1 |
1v1569 Trunnion Support And Rear Frame Service Group--Field
| 1V***69 | Trunnion Support And Rear Frame Service Group | 1 |
9j8181 Vane Pump Group
| 9J***81 | Vane Pump Group | 1 |
Wheel Brake (8k6152 N/S)--4 Required
| 8K***52 | Wheel Brake | 1 |
Wheel Brake (6m1036 N/S)--4 Required
| 6M***36 | Wheel Brakes | 1 |
Windshield Wiper (6k9610 N/S)
| 6K***10 | Windshield Wiper | 1 |
4k9471 Wiper Assembly
| 4K***71 | Wiper Assembly | 1 |
6k9611 Wiper Assembly
| 6K***11 | Wiper Assembly | 1 |
Wheel Loader
9k164 Bearing And Seal Conversion Group
| 9K***64 | Bearing And Seal Conversion Group | 1 |
9k163 Bearing And Seal Conversion Group
| 9K***63 | Bearing And Seal Conversion Group | 1 |
6k7588 Bucket Control Group
| 6K***88 | Bucket Control Group | 1 |
Bucket Positioner And Indicator (6k7877 N/S)
| 6K***77 | Bucket Positioner And Indicator | 1 |
7k4057 Cam Group--Field Installation
| 7K***57 | Cam Group | 1 |
6k9500 Crankcase Guard Group
| 6K***00 | Crankcase Guard Group | 1 |
Dump Kickout (6k7142 N/S)
| 6K***42 | Dump Kickout | 1 |
5j7170 External Kickout Valve Group
| 5J***70 | External Kickout Valve Group | 1 |
4s250 Kickout Valve Group
| 4S***50 | Kickout Valve Group | 1 |
Lever Service Groups
| 8K***71 | Bolt | 1 |
| 8K***72 | Block | 1 |
| 8K***03 | Lever | 1 |
7j8969 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 2
| 7J***70 | Lift Cylinder Group | 1 |
7j8969 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 1
| 7J***69 | Lift Cylinder Group | 1 |
7j1241 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke
| 7J***42 | Lift Cylinder Group--R.H., L.H. | 1 |
7j8259 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 3
| 7J***59 | Lift Cylinder Group--R.H., L.H. | 1 |
7j8259 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 2
| 7J***59 | Lift Cylinder Group--R.H., L.H. | 1 |
7j8259 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 1
| 7J***60 | Lift Cylinder Group--R.H., L.H. | 1 |
Lift Cylinder Lines (6k6115 N/S)--Part 1 Of 2
| 6K***15 | Lift Cylinder Lines | 1 |
Lift Cylinder Lines (6k6115 N/S)--Part 2 Of 2
| 6K***15 | Lift Cylinder Lines | 1 |
Lift Kickout
7j1076 Master Valve Group
| 7J***76 | Master Valve Group | 1 |
7j3020 Oil Filter Group--2 Required
| 7J***20 | Oil Filter Group | 1 |
7j1518 Screen Filter Group
| 7J***18 | Screen Filter Group | 1 |
6s641 Swivel Joint Group
| 6S***41 | Swivel Joint Group | 1 |
6j9383 Tilt Cylinder Group--R.H.--8.50" Bore X 40.50" Stroke
| 6J***83 | Tilt Cylinder Group | 1 |
6j9383 Tilt Cylinder Group--Right Hand--8.50" Bore X 40.50" Stroke
| 6J***84 | Tilt Cylinder Group | 1 |
Tilt Cylinder Lines (6k7712 N/S)--Part 2 Of 2
| 6K***12 | Tilt Cylinder Lines | 1 |
Tilt Cylinder Lines (6k7712 N/S)--Part 1 Of 2
| 6K***12 | Tilt Cylinder Lines | 1 |
1v697 Tilt Lines Mounting Brackets Service Group--Field Installation
| 1V***97 | Tilt Lines Mounting Brackets Service Group | 1 |
8j82 Pilot Valve Group
| 8J***82 | Valve Group-Pilot | 1 |
992B serial number reference
The PIN/serial plate on a 992B is a metal tag riveted to the main frame, typically near the articulation hitch or lower front frame rail below the cab; plates can also be duplicated on the frame rail or inside the cab structure. Check the service manual diagram for the exact location on a given unit. Read the first three characters as the prefix (identifies the model/production series, here 25K) and the digits after as the sequential build number for that series. On this series the changeover from 992 to 992B configuration falls at sequence 01170.
| Prefix | Identifies | Notes |
|---|---|---|
| 25K | 992 and 992B (shared prefix; D348 Diesel Twin Turbo engine) | Factory parts and service documentation lists the 992 and 992B together under one 25K serial run. The 992B configuration starts at 25K01170 and up; earlier serials in the same run are the original 992. No separate 992B-only prefix exists. 992B kept the 25K series through the end of its production; the following 992C switched to its own distinct prefix. |
Frequently asked questions
What engine powers the Caterpillar 992B?
The 992B uses a Caterpillar D348 diesel: a four-stroke, V-12, twin-turbocharged engine displacing 29.3 L and rated at 410 kW (550 flywheel hp) at 2,000 rpm. Fuel delivery is fully mechanical, with a precombustion-chamber design and an individual injection pump per cylinder. This engine has no electronic controls or ECM.
What is the operating weight of the Caterpillar 992B?
Operating weight runs approximately 65,550-67,840 kg (144,520-149,550 lb), depending on bucket type and tire configuration. Confirm the exact figure against your specific machine's boom, bucket, and tire setup.
What replaced the Caterpillar 992B?
Caterpillar replaced the 992B with the 992C around 1977. The 992C switched to the Cat 3412 engine rated near 690 hp and moved from the 992B's 8-bar loader linkage to a Z-bar design.
What 992B owners discuss
What's the reputation of the D348 V-12 twin-turbo engine on the 992B, and what quirks show up with age?
The 992B runs a mechanically governed D348 V-12 with twin turbochargers and an inline injection pump — no ECM and no fuel-side electronic sensors. It shares its indirect-injection, precombustion-chamber cylinder head design with the D346 and D349 in the same Cat engine family. The classic age-related complaint on these precom heads is a chamber-to-head seal that starts weeping coolant or compression after decades of service, showing up as slow coolant loss or a rough cylinder rather than a fault code. Cold starts depend more on battery condition and cranking speed than on later electronic engines, since there's no glow-plug or ECM-assisted cold-start strategy — many owners rely on an ether-start aid on cold mornings. Have your dealer or a qualified diesel shop verify compression and chamber seal condition before chasing a coolant loss as a head gasket.
What wears out first on the 992B's 8-bar loader linkage?
Like any large pin-and-bushing loader linkage, the bucket pivot and lift-arm anchor pins loosen up first. Grease every 8-10 hours of operation, and every 4 hours in wet or sandy digging conditions — skip that on a machine this size and the bushings gall out fast under quarry-duty loads. A knock or clunk at the pivot points when curling or dumping a full bucket is early bushing wear, not something to run through a season. On any high-hour example, have your dealer check the lift-arm and mainframe pivot bores for elongation or cracking before returning it to heavy work.
How do you tell a worn torque converter from a worn transmission clutch on the 992B's powershift?
Same diagnostic logic applies across Cat's mechanical powershift transmissions of this vintage: if the output shaft stops turning the moment any gear is selected, the fault is in the torque converter stage; if the shaft keeps turning but the machine won't move, or moves weakly in one particular gear, that's a worn clutch pack in the transmission itself. Falling line pressure as the transmission comes up to operating temperature points to a tired clutch disc rather than a converter problem. Chase pressure readings against the service spec before pulling anything apart — a lazy converter and a slipping clutch feel similar from the seat. Have your dealer confirm converter and clutch pressures against the service manual before committing to a teardown.
Does the 992B have the kind of electrical or sensor problems later Cat loaders get?
No. This is a mechanically governed, pre-electronic machine, so there's no ECM, no engine sensors, and none of the wiring-harness fault chasing that shows up on later 992-series machines. What does come up is old-fashioned charging-and-starting-circuit trouble: corroded battery terminals, a loose or glazed alternator belt, dirty alternator connections, or a run-down battery bank that mimics an alternator failure. Gauge senders for oil pressure and water temperature are also a common source of erratic readings once the wiring or the sender corrodes with age — that's a sender or wiring fault, not an engine problem. Have your dealer or an auto-electric shop confirm actual charging output and sender readings before replacing an alternator.
What wears on the 992B's running gear — tires, axles, brakes?
Brakes are fully enclosed oil-disc units at each wheel, the same basic layout Cat carried forward into the 992C, so check brake oil color and level rather than looking for exposed pads or rotors. On a machine that spent its life in a quarry or mine, expect tire wear and cutting from rock, axle housing and center-pivot (oscillation joint) wear from constant articulation, and axle seal seepage on older units. A rock-loading duty cycle is hard on tires and rims specifically, so tire condition is a fair proxy for how the machine was actually used versus how it was advertised. Have your dealer inspect brake oil condition and axle housings for play before returning a used 992B to production work.
What hydraulic or steering symptoms should 992B owners watch for?
Piston-pump wear is the usual cause behind a loader that feels soft or slow to respond, or steering that lags under load. A whining or rattling sound from the pump area points to cavitation from low fluid, a clogged suction screen, or internal pump wear. Falling system pressure at idle versus rated speed is the standard way to confirm a tired pump rather than a valve or cylinder fault. Given the size of the 992B's hydraulic system and the loads it swings, soft steering response or a slow lift cycle is worth pressure-testing rather than guessing at. Have your dealer pressure-test the steering and implement pumps before condemning a cylinder or valve.
What should you check before buying a used 992B?
This is a 1970s machine, so the basics matter more than on a younger loader. Confirm the serial/PIN and matching engine number, since parts support depends on knowing exactly which arrangement is fitted. Check the D348 for smoke color and coolant loss as a sign of precombustion chamber seal condition, listen for knock at the loader linkage pivots under load, check brake oil condition, and look closely for cracks or repair welds at the mainframe and lift-arm pivot bores — decades of quarry duty catches up with pin-jointed structures. Don't trust the hour meter alone on a machine this old; wear on tires, pins, and pedals tells you more than the gauge does. This is a long-discontinued, low-production machine, so budget for sourcing engine and linkage wear parts before buying, not after. Have your dealer or an independent heavy-equipment inspector go through the structure, brakes, and engine before committing to a purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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