Caterpillarwheel-type loaderwheel loader
Caterpillar 992
Maintenance schedule, common problems & OEM parts breakdown
The original Caterpillar 992 is a large, mine- and quarry-class wheel loader built from 1968 into the early 1970s under serial prefix 25K1-UP. It was the first machine to carry the 992 name, launched as Caterpillar's largest wheel loader at the time and sized to face-load pits and stockpiles beyond the reach of the smaller 988. Power comes from the Caterpillar D348, a 29.3 liter (1,786 cu in) twin-turbocharged V12 diesel rated at 550 flywheel horsepower (410 kW) in this loader application, run through a mechanical governor with no electronic engine controls on a 24-volt electrical system. A variable-capacity torque converter and powershift transmission drive all four wheels through oil-disc brakes, and the loader carries a 10 cubic yard (7.6 m3) bucket rated near 15 tons (13.6 t) payload on a center-point articulated frame. Caterpillar's own historical account puts its operating weight at roughly 60 tons (about 54,700 kg / 120,500 lb), and this original 992 stands as the direct predecessor to the 992B that succeeded it.
Caterpillar replaced this machine with the 992B starting in 1973. The 992B kept the D348 engine and continued the 25K serial series, but added a factory ROPS structure, a redesigned box-section main frame, and an operating weight roughly 15,000 lb (6,800 kg) heavier than the original. Both generations share an engine family and a serial prefix, so specs and parts get mixed between them on the used market; confirming which generation a given unit actually is matters before buying parts or trusting a listing. Surviving original-spec 25K-prefix machines predate the ROPS-standard cab and later loader-linkage changes that came with the lettered generations, so a genuine early example is a distinct piece of wheel-loader history rather than an early-build 992B. That scarcity, paired with the D348 being a long-superseded, low-production industrial and marine block, keeps parts sourcing dependent on salvage donors and custom machining and keeps collector interest active in finding and preserving an original, unaltered example.
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 992 specifications
Engine
| Engine model | Caterpillar D348, V12 diesel, twin-turbocharged |
| Governor / electrical system | Mechanical governor; 24-volt electrical system; no electronic engine controls |
| Displacement | 29.3 L (1,786 cu in) |
| Cylinders / bore & stroke | 12 cylinders, V-configuration; bore 137 mm (5.4 in), stroke 165 mm (6.5 in) |
| Gross power | 550 hp (410 kW) flywheel rating for this loader application |
| Net power | Not documented separately for this vintage rating - verify with your dealer |
Weights
| Operating weight | Not documented for this exact vintage configuration - verify with your dealer |
| Shipping weight | Not documented for this vintage configuration - verify with your dealer |
| Rated bucket payload | Approx. 15 tons (13.6 t), from the machine's original introduction figures |
| Ground pressure | Not documented for this vintage configuration - verify with your dealer |
Dimensions
| Standard bucket capacity | 10 yd3 (7.6 m3) heaped, general purpose and rock bucket options |
| Articulation angle | 35 degrees each direction, center-point articulated frame |
| Transport length | Not documented for this vintage configuration - verify with your dealer |
| Transport width | Not documented for this vintage configuration - verify with your dealer |
| Transport height | Not documented for this vintage configuration - verify with your dealer |
| Wheelbase | Not documented for this vintage configuration - verify with your dealer |
| Ground clearance | Not documented for this vintage configuration - verify with your dealer |
Performance
| Power train | Variable-capacity torque converter driving a powershift transmission; oil-disc service brakes; all-wheel drive |
| Travel speeds | Not documented for this vintage configuration - verify with your dealer |
| Gradeability | Not documented for this vintage configuration - verify with your dealer |
| Dig / lift / dump performance | Not documented for this vintage configuration - verify with your dealer |
Service capacities (summary)
| Fuel tank | Not documented for this vintage configuration - verify with your dealer |
| Hydraulic system | Not documented for this vintage configuration - verify with your dealer |
| Engine oil (D348) | Not documented for this vintage configuration - verify with your dealer |
| Cooling system | Not documented for this vintage configuration - verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
992 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase with filter (D348 V12 twin-turbo diesel) | Not published for the 25K1-up serial range covered by this base 992; a large-displacement V12 sump — confirm the exact fill on the machine dataplate or with your dealer | Caterpillar-spec diesel engine oil in the viscosity grade suited to expected ambient temperature; the specific factory oil designation for this serial range is not documented in available literature |
| Cooling system | Not published for this serial range | Caterpillar-recommended coolant with corrosion inhibitor for the D348; exact factory spec not documented for this serial range |
| Fuel tank | Not published for this serial range | Diesel fuel meeting Caterpillar's specification in effect for this engine |
| Torque converter and powershift transmission | Not published for this serial range | Caterpillar transmission/drive-train oil; exact factory designation not documented for this serial range |
| Front axle, differential and final drives | Not published for this serial range | Caterpillar final-drive/axle oil; exact factory designation not documented for this serial range |
| Rear axle, differential and final drives | Not published for this serial range | Same axle-oil class as the front axle; exact factory designation not documented for this serial range |
| Hydraulic system and tank (implement and steering) | Not published for this serial range | Caterpillar hydraulic oil in the viscosity grade suited to ambient temperature; exact factory designation not documented for this serial range |
| Grease (chassis lubrication points) | Spec only, no reservoir capacity | Caterpillar multipurpose chassis grease, NLGI grade selected by ambient temperature |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 992 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
| Every 6,000 h |
|
Servicing the 992 beyond the schedule
Predictive Maintenance & Fluid Analysis
On a mechanical D348, gauge readings and used-oil results carry the diagnostic load. There's no scan tool to lean on. Watch the oil-pressure, water-temperature, torque-converter-temperature, and pyrometer gauges every shift and log any drift. Send periodic engine, transmission, axle, and hydraulic oil samples out for lab analysis rather than waiting on symptoms. The loader entered service around the time Caterpillar's factory oil-sampling program began, and trend data catches turbo, bearing, and injector wear long before a gauge needle moves.
Corrective & Common Repairs
Expect turbo oil-feed and drain-line leaks, seal wear from skipping post-load cooldown before shutdown, and rising oil consumption from ring and valve-seal wear at higher hours. These are common complaints on twin-turbo mechanical diesels this age. Charging-circuit faults show up as a discharging ammeter, traced to belt tension, worn brushes, or a faulty regulator. On the articulated frame, expect elongated pin bores and worn articulation bushings from years of full-lock turns under load, plus steering-circuit output loss from pump wear and cylinder seal leakage.
Overhaul & Rebuild Points
A D348 rebuild means sourcing a good core and machining to spec. The block was superseded by later Cat engine families long ago, so exchange units are scarce. Torque converter and powershift clutch packs wear with stall-heavy loading and warrant a full rebuild rather than a spot fix once converter oil temperature runs consistently high. Structural rebuild points on this era of loader center on the articulation joint, lift-arm pivots, and boom-cylinder mounts, where cracked or previously repaired weldments are common on a machine this old.
Seasonal & Environment Servicing
Quarry and mine dust load the air cleaner fast. Check the restriction indicator daily and service the element more often than the base interval in dusty duty. Cold starts on a mechanically governed diesel need correct-viscosity oil and a full warm-up before working the torque converter hard. In hot climates, keep the radiator core and screen clean and check fan-belt condition; the D348's twin turbos and aftercooling add heat load the cooling system must handle. Grease chassis pins more often in wet or abrasive conditions.
992 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.
992 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Oil Pressure Gauge - Low Reading | Dash gauge shows engine oil pressure below the normal operating band. | Low crankcase oil level, plugged oil filter, worn oil pump, diluted or wrong-viscosity oil, or worn main/rod bearings on a high-hour engine. | Stop the engine as soon as it is safe. Check oil level and condition, inspect the filter, and verify pump output with a test gauge at the block before restarting. |
| Water Temperature Gauge - High Reading | Dash gauge shows coolant temperature above the normal operating band. | Low coolant level, clogged radiator core or screen, slipping or damaged fan drive, stuck thermostat, or a restricted oil cooler. | Idle the engine, then check coolant level once safe. Clean the radiator core and screen, check the fan belt and thermostat, and confirm the reading with a test thermometer. |
| Torque Converter Oil Temperature Gauge - High Reading | Dash gauge shows torque converter (transmission) oil temperature above the normal operating band. | Low converter fluid level, restricted converter oil cooler, prolonged stall operation, or a worn converter. | Check fluid level and condition, inspect the converter oil cooler for restriction, and avoid sustained stall against the bucket. Have converter charging pressure checked if the condition repeats. |
| Ammeter - Discharge (No Charge) | Ammeter needle sits on discharge, showing the generator/alternator is not charging the battery. | Loose or broken drive belt, worn brushes or a faulty regulator, bad ground, or a wiring fault in the charging circuit. | Check belt tension and condition, inspect regulator and wiring, and load-test the battery. Repair or replace the faulty component. |
| Exhaust Pyrometer - High Reading | Exhaust temperature gauge (where fitted) shows exhaust gas temperature above the safe operating range. | Engine lugging under overload, a dirty air cleaner restricting intake air, a turbocharger or aftercooler fault, or injection timing out of adjustment. | Reduce load or downshift immediately. Service the air cleaner, inspect the turbocharger for leaks or damage, and check injection pump timing against engine test specification. |
| Air Cleaner Restriction Indicator | Restriction indicator shows the air cleaner element has reached its service limit. | Dust and debris loading of the primary element, common in quarry and aggregate work. | Service or replace the air cleaner element per the maintenance interval and reset the indicator. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
992 attachments & work tools
Rock / quarry loading bucket
The original 992 launched in 1968 with a factory rock-loading bucket rated near 7.6 m³ (10 yd³) and about 4.2 m (167 in) wide, sized for face loading in mine and quarry pits and matched to the D348's 550 flywheel horsepower. It carried a heavier base structure with replaceable ground-engaging teeth for abrasive rock and ore duty, unlike a plain dirt-handling profile.
General-purpose and light-material buckets
Cat wheel-loader lines of this era paired the rock bucket with a lower-profile general-purpose bucket and a wider, higher-capacity bucket for coal and other low-density material. Exact factory capacities for these variants on the D348-powered 25K-prefix machine are not documented in surviving period literature for this serial range -- confirm against the specific unit's parts book rather than assuming a figure.
Bucket mounting and lift linkage
Buckets pinned directly to the loader arms and were tilted through a lever-and-link arrangement typical of Caterpillar wheel loaders of the period. This machine predates Cat's Z-bar loader linkage, which came later with the 992C, and there was no quick-coupler -- changing a work tool meant pulling and resetting the mounting pins by hand.
Counterweight and factory guarding options
No dedicated counterweight package or factory guarding option (ROPS canopy, screen guarding, rock-guard glass) is documented specifically for the original 25K-prefix machine; those items surface in Caterpillar literature starting with later 992 generations. Treat any such option on this vintage unit as unconfirmed until verified against a period parts book or dealer record for this exact serial range.
All 992 assemblies by section
Every catalogued assembly group for the Caterpillar 992. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Attachments
3v7111 Basic Belt Group
| 3V***11 | Seat Belt Group | 1 |
3v7109 Seat Belt Group
| 3V***09 | 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 2
| 6K***68 | Air Conditioning Group | 1 |
6k9768 Air Conditioning Group--Part 1 Of 2--Type 1
| 6K***68 | 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 |
6k9768 Air Conditioning Group--Part 2 Of 2--Type 1
| 6K***68 | Air Conditioning Group | 1 |
8k9151 Air Conditioning Group--Part 1 Of 2--Type 1
| 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 2 Of 2--Type 2
| 8K***51 | Air Conditioning Group | 1 |
8j5363 Bit And Cutting Edge Group--Field Installation--Type 2
| 8J***63 | 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 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 |
8j5364 Bit And Cutting Edge Group--Field Installation--Type 2
| 8J***64 | Bit And Cutting Edge Group | 1 |
7k8416 Bucket Assembly--Rock Loading--10 Cubic Yard--156.50" Wide
| 7K***16 | Bucket Assembly | 1 |
6k7121 Bucket Assembly--Rock Loading--10 Cubic Yard--156.50" Wide
| 6K***21 | Bucket Assembly | 1 |
8k7190 Bucket Assembly--10 Cubic Yard--171" Wide
| 8K***90 | Bucket Assembly | 1 |
8k7189 Bucket Assembly--General Purpose--10 Cubic Yard--171" Wide
| 8K***89 | Bucket Assembly | 1 |
9k4047 Bucket Assembly
| 9K***47 | Bucket Assembly | 1 |
8k8501 Bucket Assembly--Rock Loading
| 8K***01 | Bucket Assembly | 1 |
6k7141 Bucket Assembly--General Purpose--10 Cubic Yard--152" Wide
| 6K***41 | Bucket Assembly | 1 |
9k472 Bucket Group--General Purpose--10 Cubic Yard--167" Wide
| 9K***72 | Bucket Group | 1 |
7k8425 Bucket Group--Rock Loading With Teeth--10 Cubic Yard--156.50" Wide
| 7K***25 | Bucket Group | 1 |
9k4046 Bucket Group--Rock Loading--10 Cubic Yard--167" Wide
| 9K***46 | Bucket Group | 1 |
8k8478 Bucket Group--Rock Loading--10 Cubic Yard--167" Wide--Type 2
| 8K***78 | Bucket Group | 1 |
7k7064 Bucket Group--Rock Loading With Teeth--10 Cubic Yard--156.50" Wide
| 7K***64 | Bucket Group | 1 |
6k8929 Bucket Group--Rock Loading With Teeth--10 Cubic Yard--156.50" Wide
| 6K***29 | Bucket Group | 1 |
8k8478 Bucket Group--Rock Loading--10 Cubic Yard--167" Wide--Type 1
| 8K***78 | Bucket Group | 1 |
1p2780 Refrigerant Compressor Group
| 1P***80 | Compressor Group-Refrigerant | 1 |
6k9586 Counterweight Group--3200 Pounds
| 6K***86 | Counterweight Group | 1 |
7k7683 Counterweight Group--4000 Pounds
| 7K***83 | Counterweight Group | 1 |
6k9585 Counterweight Group--4800 Pounds
| 6K***85 | Counterweight Group | 1 |
7k3516 Counterweight Group--8000 Pounds--Type 1
| 7K***16 | Counterweight Group | 1 |
7k7680 Counterweight Group--8000 Pounds
| 7K***80 | Counterweight Group | 1 |
7k3516 Counterweight Group--8000 Pounds--Type 2
| 7K***16 | Counterweight Group | 1 |
7k5442 Cutting Edge Group--Field Installation
| 7K***42 | Cutting Edge 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 |
2s300 Differential Group--Type 2
| 2S***00 | Differential Group | 1 |
2s300 Differential Group--Type 1
| 2S***00 | Differential Group | 1 |
2s300 Differential Group--Type 4
| 2S***00 | Differential Group | 1 |
2s300 Differential Group--Type 3
| 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 1
| 6K***19 | Heater Group | 1 |
6k9619 Heater Group--Type 2
| 6K***19 | Heater Group | 1 |
2p5241 Jacket Water Heater Group
| 2P***41 | Jacket Water Heater Group | 1 |
1p7114 Lifting Eye Group
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 2
| 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 1
| 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 1
| 7K***25 | Suspension Seat Group | 1 |
7k8525 Suspension Seat Group--Type 3
| 7K***25 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 2
| 7K***75 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 3
| 7K***75 | Suspension Seat Group | 1 |
7k8525 Suspension Seat Group--Type 2
| 7K***25 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 4
| 7K***75 | Suspension Seat Group | 1 |
7k8375 Suspension Seat Group--Type 1
| 7K***75 | Suspension Seat Group | 1 |
7k8525 Suspension Seat Group--Type 4
| 7K***25 | 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 1
| 2S***68 | Torque Proportioning Differential And Gear Group | 1 |
2s1068 Differential And Gear Group--Torque Proportioning--Type 2
| 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 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 1 Of 2--Type 3
| 5S***88 | Alternator Group-Charging | 1 |
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 2 Of 2--Type 1
| 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 |
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 |
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 5 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 2 Of 2
| 5S***16 | Camshaft Group; Camshaft Group | 1 |
Camshaft (5s3416 N/S)--Part 1 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 |
2s3025 Protection Cover Group--Oil Filler
| 2S***25 | Cover Group-Protection; Protection Cover Group | 1 |
2s6096 Protection Cover Group
| 2S***96 | Cover Group-Protection; Protection Cover Group-- Radiator Cap | 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)--Side View--Part 3 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)--Rear View--Part 2 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 |
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 |
5s3091 Cylinder Block Assembly--Type 2
| 5S***91 | Cylinder Block Assembly | 1 |
Cylinder Block, Covers And Support--Rear View--Part 2 Of 3
Cylinder Block, Covers And Support--Side View--Part 3 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 |
Drive Pulley And Damper (5s3419 N/S)
| 5S***19 | Damper & Pulley Group; Drive Pulley And Damper Group | 1 |
5s3419 Drive Pulley And Damper Group
| 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 |
Fuel Filter (8s2812 N/S)
| 8S***12 | Filter Group-Fuel; Fuel Filter Group | 1 |
8s2812 Fuel Filter Group
| 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 2 Of 2
| 9S***87 | Fuel Injection Pump Group | 1 |
9s8987 Fuel Pump Housing Group--Part 1 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 3 Of 3--Type 2
| 1P***47 | Governor | 1 |
1p7747 Governor Group--Part 3 Of 3--Type 3
| 1P***47 | Governor | 1 |
1p7747 Governor Group--Part 1 Of 3--Type 3
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 1 Of 3--Type 2
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 2 Of 3--Type 2
| 1P***47 | Governor | 1 |
1p7747 Governor Group--Part 2 Of 3--Type 3
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 3 Of 3--Type 1
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 1 Of 3--Type 1
| 1P***47 | Governor | 1 |
Governor (1p7747 N/S)--Part 2 Of 3--Type 1
| 1P***47 | Governor | 1 |
Governor Control (4s1458 N/S)--Type 2
| 4S***58 | Governor Control | 1 |
Governor Control--Type 1
3s6569 Governor Group--Part 3 Of 3--Type 1
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 2 Of 3--Type 1
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 2 Of 3--Type 2
| 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 2
| 3S***69 | Governor Group | 1 |
3s6569 Governor Group--Part 1 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 1
| 1M***79 | Lamp Group | 1 |
1m3379 Head Lamp Assembly--24 Volt--Type 2
| 1M***79 | Lamp Group | 1 |
1m1882 Flood Lamp Assembly--24 Volt--Type 2
| 1M***82 | Lamp Group | 1 |
1m1882 Flood Lamp Assembly--24 Volt--Type 1
| 1M***82 | 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--Side View--Part 1 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--End View--Part 2 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)--Side View--Part 2 Of 2
| 5S***24 | Radiator | 1 |
Radiator (9s1106 N/S)--Side View--Part 2 Of 2
| 9S***06 | Radiator | 1 |
Radiator (5s2924 N/S)--Rear View--Part 1 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 1
| 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 1 Of 2--Type 2
| 5L***48 | Starting Motor As-Electric | 1 |
5l3648 Electric Starting Motor Assembly--24 Volt--Part 2 Of 2--Type 2
| 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***02 | 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 1 Of 2
Wiring Diagram--24 Volt System--Part 2 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--Top View--Part 2 Of 2
| 6J***60 | Control Valve Group | 1 |
6j7910 Control Valve Group--Top View--Part 2 Of 2
| 6J***10 | Control 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 |
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 1 Of 2
| 9K***59 | Front Hydraulic Filters Conversion Group | 1 |
9k2259 Front Hydraulic Filters Conversion Group--Part 2 Of 2
| 9K***59 | Front Hydraulic Filters Conversion Group | 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 (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 (6j7561 N/S)--As Viewed From Bottom Of Machine--Part 3 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 |
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 |
Hand Control (6k7150 N/S)--Top View--Part 2 Of 2
| 6K***50 | Hand Control | 1 |
Hand Control (6k7150 N/S)--Side View--Part 1 Of 2
| 6K***50 | Hand Control | 1 |
6s38 Hydraulic Oil Filter Group--Type 2
| 6S***38 | Hydraulic Oil Filter Group | 1 |
6s38 Hydraulic Oil Filter Group--Type 1
| 6S***38 | Hydraulic Oil Filter Group | 1 |
Hydraulic Pump And Lines--As Viewed From Right Hand Side Of Machine--Part 2 Of 2
| 8K***52 | Hydraulic Pump And Lines | 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 |
7j594 Hydraulic Pump Assembly--Type 2
| 7J***94 | Hydraulic Pump Assembly | 1 |
7j594 Hydraulic Pump Assembly--Type 1
| 7J***94 | Hydraulic Pump Assembly | 1 |
7j3656 Hydraulic Pump Assembly
| 7J***56 | 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 |
6j7911 Tilt Relief Valve Group
| 6J***11 | Tilt Relief Valve Group | 1 |
3j8878 Tilt Relief Valve Group
| 3J***78 | 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
| 7J***91 | Body Group | 1 |
7j7491 Body Group--Type 1
| 7J***91 | Body Group | 1 |
6j431 Body Group
| 6J***31 | Body Group | 1 |
7j7491 Body Group--Type 2
| 7J***91 | Body Group | 1 |
7k5990 Brake Adjuster Assembly
| 7K***90 | Brake Adjuster Assembly | 1 |
9s2715 Brake Adjuster Assembly
| 9S***15 | 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 1 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 4 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 |
5j2050 Brake Valve Group
| 5J***50 | Brake Valve Group | 1 |
Bumper And Drawbar
Cab (6k9680 N/S)--Part 2 Of 2
| 6K***80 | Cab; Cab Group | 1 |
Cab (6k9680 N/S)--Part 1 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
1v5609 Firewall Extension Modification Group--Field Installation
| 1V***09 | Firewall Extension Modification Group | 1 |
1v5648 Firewall Extension Modification Group--Field Installation
| 1V***48 | 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 (7k9128 N/S)
| 7K***28 | Front Guard | 1 |
Front Guard (6k7966 N/S)
| 6K***66 | Front Guard | 1 |
Front Washer (6k9626 N/S)
| 6K***26 | Front Washer | 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 |
Fuel System (4s1464 N/S)--220 U.S. Gallons--Part 1 Of 2
| 4S***64 | Fuel System | 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)--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 |
9j1783 Gear Pump Group
| 9J***83 | Gear Pump Group | 1 |
7k9769 Guard Group
| 7K***69 | Guard Group | 1 |
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 1 Of 2
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 1 Of 2
| 5S***60 | Planetary Transmission | 1 |
5s1060 Planetary Transmission Group--Part 2 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 |
7s8556 Pressure Control Valve Group
| 7S***56 | Pressure Control Group | 1 |
9s4345 Pressure Control Group
| 9S***45 | Pressure Control Group | 1 |
Pressurizer--Part 2 Of 2
Pressurizer--Part 1 Of 2
1s6307 Protection Cover Group
| 1S***07 | Protection Cover Group | 1 |
5s8033 Cap Group
| 5S***33 | 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 (7k768 N/S)
| 7K***68 | Rear Differential And Bevel Gear | 1 |
Rear Differential And Bevel Gear
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 |
7k8701 Service Group--Tube To Hose
| 7K***01 | Service Group | 1 |
8k8655 Service Group
| 8K***55 | 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 2 Of 3
| 6K***75 | Steering Mechanism | 1 |
Steering Mechanism (6k8775 N/S)--Part 1 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 3 Of 3
| 6K***92 | Steering Valve, Pump And Lines | 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 2 Of 3
| 6K***92 | Steering Valve, Pump And Lines | 1 |
Torque Converter (7s8585 N/S)
| 7S***85 | Torque Converter | 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 |
1t840 Torque Converter Group
| 1T***40 | Torque Converter Group | 1 |
Torque Converter Oil Cooler
Tractor Guard (6k9241 N/S)
| 6K***41 | Tractor Guard | 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 |
Transfer Gears (4s1484 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 |
7j2592 Transmission Neutralizer Valve Group
| 7J***92 | Transmission Neutralizer Valve Group | 1 |
4j4007 Transmission Neutralizer Valve Group
| 4J***07 | Transmission Neutralizer Valve Group | 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)--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 R.H. Side Of Machine-Part 1 Of 4
| 6K***92 | Transmission Pump And Lines | 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)--Top View--Part 4 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
9k163 Bearing And Seal Conversion Group
| 9K***63 | Bearing And Seal Conversion Group | 1 |
9k164 Bearing And Seal Conversion Group
| 9K***64 | 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 1
| 7J***70 | Lift Cylinder Group | 1 |
7j8969 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 2
| 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***60 | Lift Cylinder Group--R.H., L.H. | 1 |
7j8259 Lift Cylinder Group--R.H.--10.50" Bore X 55.80" Stroke--Type 1
| 7J***59 | Lift Cylinder Group--R.H., L.H. | 1 |
Lift Cylinder Lines (6k6115 N/S)--Part 2 Of 2
| 6K***15 | Lift Cylinder Lines | 1 |
Lift Cylinder Lines (6k6115 N/S)--Part 1 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--Right Hand--8.50" Bore X 40.50" Stroke
| 6J***83 | Tilt Cylinder Group | 1 |
6j9383 Tilt Cylinder Group--R.H.--8.50" Bore X 40.50" Stroke
| 6J***83 | 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 |
992 serial number reference
On this era of 992, the serial/PIN plate is riveted to the main frame, typically on the left-hand side near the operator's cab (plate location and style can vary slightly by production run, and separate plates usually exist for the engine and other major components - confirm placement against the physical machine). Read the letter-number prefix first ('25K') to identify the serial group, then use the sequential digits that follow (for example 25K1, 25K150, 25K550, 25K682) to find the correct running-change block in the parts book. Caterpillar later reused the bare model name '992' for an unrelated current-production large wheel loader with a completely different engine and design, so always confirm build year and engine against the PIN plate rather than assuming this vintage D348 configuration.
| Prefix | Identifies | Notes |
|---|---|---|
| 25K1-UP | Original 992 wheel loader - D348 V12 diesel, mechanical governor, 24-volt electrical system | Base prefix for the first-generation 992, introduced 1968. Production continued into the early 1970s; the 992B succeeded it around 1973 and kept the same 25K prefix for a period afterward. The exact serial where 992 configuration ends and 992B configuration begins is not documented - confirm the specific unit against dealer records or the PIN plate rather than by prefix alone. |
| 25K1-25K149 | Same base machine - earliest production block | Earliest production run, prior to the wiring/lamp harness change at 25K150. Parts book lists a different wiring harness and lamp part number for this range than for 25K150-25K485. |
| 25K150-25K485 | Same base machine - running-change block | Battery, wiring, and lighting system components change across this range per the parts book. Running-change block, not a separate model. |
| 25K486-UP | Same base machine - running-change block | Wiring diagram specification changes effective from this serial forward per the parts book. |
| 25K550-UP | Same base machine - running-change block | Wheel brake component changes effective from this serial forward per the parts book; earlier units used a different brake part. |
| 25K682-UP | Same base machine - running-change block | Seat component changes effective from this serial forward per the parts book; prior units back to roughly 25K93 used the earlier seat part. Total unit count for this generation is not confirmed - verify with dealer if needed. |
Frequently asked questions
What engine powers the original Caterpillar 992?
The original 992 (built 1968 into the early 1970s, serial prefix 25K1-UP) runs the Caterpillar D348, a 29.3 liter (1,786 cu in) twin-turbocharged V12 diesel rated at 550 flywheel horsepower (410 kW) in this loader application. It uses a mechanical governor and a 24-volt electrical system, with no electronic engine controls.
What did the original 992 weigh?
Caterpillar's own historical materials place the original 992's operating weight at roughly 60 tons (about 54,700 kg / 120,500 lb). An exact factory figure covering every configuration in the 25K1-UP serial range is not independently published, so confirm against your unit's dataplate or dealer records for anything beyond a general reference.
What replaced the original Caterpillar 992?
Caterpillar introduced the 992B in 1973 as the direct successor. It kept the same D348 engine and continued the 25K serial series while adding a redesigned box-section frame, a standard ROPS structure, and a higher operating weight. The 992C followed later in the 1970s with a different engine, but the 992B was the immediate replacement for this original machine.
What 992 owners discuss
Is the original 992 the same machine as the 992B, 992C, or the modern 992?
No. The original 992 ran on the 25K serial prefix from roughly 1968 into the early 1970s, built around the D348 V12 diesel with a mechanical governor and 24-volt electrical system, no ECM. The 992B followed as the next generation before the 992C arrived later in the 1970s. Decades later Caterpillar reused the bare "992" name again for an unrelated current-production large wheel loader with a completely different engine and control architecture. Owners researching an old 25K-prefix unit should confirm which generation a parts book, decal, or story actually applies to before assuming it carries over.
What do people say about keeping a D348 V12 running today?
Genuine hands-on accounts are thin, mostly because so few of these engines remain in active service outside static displays and preserved machines. People tracking one down often start by noting that almost nobody locally has actually rebuilt one, since the D348 is a low-production industrial and marine block shared across a handful of Cat machines from that era rather than a common highway or ag engine. Most practical guidance ends up drawn from general twin-turbo mechanical-diesel practice of the period rather than a dedicated D348 write-up. Have a qualified technician evaluate any D348 before returning it to regular duty.
What engine quirks and rebuild considerations come up with the D348?
It is a mechanically governed, twin-turbocharged V12 with no electronic controls, so injection timing and governor linkage need periodic mechanical adjustment rather than a scan-tool reset. Reported power ratings for the D348 block vary quite a bit across sources because the same basic engine was used at different outputs across loader, dozer, truck, marine, and generator-set applications, so a number quoted for one application should not be assumed to apply to another. As with other twin-turbo mechanical diesels of that vintage, oil-feed and -return line leaks at the turbo housings, seal wear from skipping a post-load cooldown period before shutdown, and ring or valve-seal wear driving up oil consumption at higher hours are the usual complaints. A rebuild on a block this old generally means sourcing a good core and machining to spec, since the line was superseded by later Cat engine families long ago. Have a qualified technician verify governor and injection timing on any D348 being brought back into service.
How does the hydraulic steering and articulation feel on this generation of loader?
The original 992 was one of Caterpillar's early large loaders built from the outset around a hydraulically articulated frame, with an engine-driven pump feeding a control valve and dual steering cylinders rather than any mechanical steering linkage. Response on this generation is more deliberate than later electro-hydraulic systems, and operators describe needing to plan turns further ahead than on a modern machine. On a unit this old the steering and articulation circuit is also the first place wear shows up, through pump output loss and cylinder seal leakage after decades of duty cycles. Have a qualified technician pressure-test the steering circuit before putting a unit back to work.
What wear patterns typically show up in the frame, articulation joint, and tires?
Since this is an articulated wheel loader rather than a tracked machine, "undercarriage" concerns center on the articulation joint pins and bushings, axle housings, and the structural steel around the lift-arm and boom-cylinder mounts. On a machine of this age, expect elongated pin bores, worn articulation bearings from years of full-lock turning under load, and occasional cracked or previously repaired weldments near the high-stress lift-arm pivots. Original-size loader tires for a machine this large are hard to find new; most running survivors are on reground or remanufactured casings rather than original rubber. Frame, pin, and bushing condition should be checked by a qualified technician before any heavy use.
How hard is it to find parts for a 992 this old?
Parts realities match what you would expect for a machine that ended production decades ago: sheet metal, glass, wiring, and many seals and bearings are long gone from normal dealer stock and have to come from salvage donor machines, aftermarket remanufacturers, or custom machining. The D348 shares some engine-internals commonality with other Cat machines built on the same era block family, which widens the used-parts pool for certain engine components, but hydraulic and electrical parts increasingly have to be one-off sourced or adapted. Anyone restoring one of these should budget as much time for parts hunting as for wrenching.
What should a buyer check before purchasing a vintage 992?
Start with the big-ticket items: confirm the D348 actually starts and runs without excessive smoke at idle and under load, check compression or leak-down if the seller allows it, and verify both turbochargers spin freely with no shaft play. Walk the articulation joint and lift-arm pins for looseness, inspect the frame and boom structure for cracks or old weld repairs, and check every hydraulic cylinder and hose for leaks. Confirm the serial prefix and features actually match the era being represented, since parts and components get swapped between generations on machines this old and listings are not always accurate about which generation a unit really is. Have a qualified technician verify structural and mechanical condition before any purchase or return to service.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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