Caterpillaroff-highway trucktruck
Caterpillar 793
Maintenance schedule, common problems & OEM parts breakdown
The original Caterpillar 793 is an ultra-class rigid-frame off-highway mining truck, the first machine to carry the 793 nameplate, built in 1991-92 under serial prefix 3SJ before Caterpillar replaced it with the 793B in 1992. It was a very low-volume first run, commonly put at no more than about 50 units before the line moved to the B-series. Power comes from a mechanically governed Cat 3516 V16 diesel of roughly 69 L displacement (170 mm x 190 mm bore and stroke), driving through a torque-converter powershift transmission, a differential, and double-reduction planetary final drives to oil-cooled multiple-disc brakes at all four wheel ends. It sits in the roughly 218-227 tonne (240-250 ton) nominal payload class that has defined the 793 line since its 1991 launch, though an operating-weight figure specific to this original nameplate, separate from its 793B successor, is not separately published. Caterpillar sold it as essentially one rigid dump-body configuration for large surface mines, with factory variation limited to liner, tailgate, sideboard, tire, and guarding options typical of the class. The original 793 was superseded by the 793B in 1992, then the 793C, 793D, and 793F followed over the next three decades, and Caterpillar later reused the bare '793' name on an unrelated current-production truck.
The defining difference between this original 793 and every 793 built after it is fuel governing and onboard electronics: this truck runs a mechanical jerk-pump fuel system with no engine ECM and no digital fault codes, monitored only through an analog gauge-cluster warning system, while the 793B that replaced it in 1992 moved to electronic unit injection and added onboard payload and fault-logging electronics the original never had. Later 793C/D/F generations pushed further into electronic engine control and higher-displacement engine variants, and Caterpillar eventually reused the bare 793 name on an unrelated current-production truck with a different engine family entirely. Surviving original-series trucks are now over three decades old and scarce; most have already been through at least one major driveline rebuild, so this generation shows up in the used market almost entirely as a parts, rebuild, or restoration project rather than a working production unit. Buyers need to confirm by serial number that a listed '793' is genuinely this 3SJ-prefix original and not a later B/C/D truck carrying the same base model number. Mechanical commonality with same-era Cat mining trucks running the 3500-series engine family keeps some demand alive for reman engine, transmission, and final-drive components even as complete original 793 trucks become rare.
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 793 specifications
Engine
| Engine model | Cat 3516, V16 diesel. This is the base 3516 architecture the 793 line launched with in 1991; the higher-displacement 3516B HD EUI variant came in with a later successor generation, not this truck. |
| Cylinders / configuration | 16 cylinders, V-configuration, four-stroke diesel |
| Displacement | Approx. 69 L, bore 170 mm x stroke 190 mm, per the base 3516 engine architecture |
| Governor / fuel system | Not documented for this exact serial range. The original 793 predates the Electronic Unit Injection (EUI) upgrade Caterpillar later applied to the 793 line — verify mechanical vs early electronic governing with your dealer for a specific serial number |
| Gross/net power | Not separately published for the original 1991-92 nameplate apart from its direct successor. Confirm the factory rating for your serial range with a Cat dealer |
| Emissions tier | Predates nonroad diesel emissions tier regulation; no EPA/EU nonroad tier rating applies to this generation |
Weights
| Operating weight | Not independently documented for the original 1991-92 nameplate separate from its successor. Verify by serial number with your dealer |
| Nominal payload class | This truck line has carried a roughly 218-227 tonne (240-250 short ton) nominal payload class since its 1991 launch, per Cat product literature, but an exact payload figure specific to the original nameplate is not separately published |
| Ground pressure | Not published for this generation |
Dimensions
| Transport length/width/height | Not documented for this exact generation separate from later series. Consult the factory spec sheet for your serial range |
| Wheelbase / track gauge | Not published for this generation |
| Ground clearance | Not published for this generation |
Performance
| Drivetrain | Torque-converter-coupled powershift transmission, consistent with Caterpillar's large mining trucks of this era. Exact gear count not confirmed for this specific nameplate |
| Travel speed | Not separately documented for the original 1991-92 nameplate. Later trucks in this line run in the mid-50s km/h (low-30s mph) range, but that figure is not confirmed for this exact generation |
| Gradeability | Not published for this generation |
Service capacities (summary)
| Fuel tank | Not documented for this exact generation. Consult the factory service manual for your serial range |
| Hydraulic system | Not documented for this exact generation |
| Engine oil | Not documented for this exact generation |
| Cooling system | Not documented for this exact generation |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
793 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not published in available documentation for the original 1991-era 793 (pre-793B) generation; confirm exact refill volume against the dipstick markings or the machine's own OMM for this serial range. | Cat DEO (Diesel Engine Oil), conventional multigrade for the Cat 3516 mechanical/PEEC-fuelled V16; grade by ambient temperature per Cat's engine oil viscosity chart — heavier grade (around SAE 15W-40) in temperate to hot climates, lighter grade (around SAE 10W-30) for cold-start service. This generation predates Cat's low-emission DEO-ULS formulations tied to later ultra-low-sulfur fuel. |
| Cooling system | Not confirmed in available documentation for this generation; verify against the OMM for this serial range. | Cat conventional heavy-duty antifreeze/coolant (Cat DEAC-type), the standard factory fill for this era, ahead of Cat's later Extended Life Coolant (ELC) option. Mix ratio set by Cat's freeze-protection chart for expected ambient low. A field conversion to Cat ELC is common on machines still in service but is not the original factory spec for this build era. |
| Fuel tank | Not confirmed in available documentation for this generation; verify against the OMM for this serial range. | No. 2-D diesel fuel meeting Cat's fuel specification; a winter-blend or kerosene-cut fuel is called for below freezing per Cat's cold-weather operating guidance. |
| Torque converter / powershift transmission | Not confirmed in available documentation for this generation; verify against the OMM for this serial range. | Cat TDTO (Transmission/Drive Train Oil), TO-4 specification, matched to the wet-clutch powershift transmission behind the torque converter. Grade selected by ambient temperature per Cat's TDTO viscosity chart. |
| Final drives and differential (rear axle housing, each side) | Not confirmed in available documentation for this generation; verify against the OMM for this serial range. Drivetrain is a double-reduction planetary design with full-floating axles. | Cat TDTO, TO-4 specification, same fluid family as the transmission/torque converter fill; grade by climate per Cat's viscosity chart. |
| Hydraulic system (steering, brake, hoist) and tank | Not confirmed in available documentation for this generation; verify against the OMM for this serial range. | Cat TDTO is the historical shared fill for the combined brake/hoist/steering hydraulic circuit on Cat mining trucks of this era, though later production runs of this same truck line can call for a dedicated Cat hydraulic oil. Confirm which fluid family the OMM specifies for this exact serial range before topping off, since the two are not always interchangeable. |
| Grease (chassis and pin/bushing points) | Not applicable — lubricated per service interval, not a reservoir fill. | Cat multipurpose extreme-application grease (NLGI Grade 2 EP/lithium-complex equivalent) at all pin, bushing, and chassis grease points per the machine's lubrication chart. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 793 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 7,500 h |
|
| Every 15,000 h |
|
Servicing the 793 beyond the schedule
Predictive Maintenance & Fluid Analysis
This original 793 has no engine ECM and no onboard payload/fault-logging system, so oil-sample trending is the main window into wear instead of digital diagnostics. Run oil analysis on the mechanically governed 3516, the torque converter/transmission, the differential, the final drives, and the combined brake/hoist/steering hydraulic circuit on every service interval. Watch iron and copper counts closely on a truck this age; most surviving units have already been through at least one rebuild. Log gauge-cluster warning-lamp activity by hand since there is no digital fault log to pull.
Corrective & Common Repairs
Expect turbocharger bearing and seal wear plus aftercooler fouling on the mechanically governed 3516 first at high hours, since there is no ECM to flag boost loss early. Oil-cooled multiple-disc brakes need cooling-oil level checks and cooler-core cleaning when brake-oil temperature climbs on grade. Torque-converter powershift clutch packs wear unevenly; watch for one pack shifting noticeably differently than the others. Nitrogen-over-oil suspension struts leak charge slowly at the seals, so a soap-and-water check catches it before the strut rides harsh.
Overhaul & Rebuild Points
Plan a first top-end overhaul on the mechanically governed 3516 in the roughly 7,500 to 11,000 hour range depending on rated engine speed, with a second top end at about double that, standard for this engine family regardless of chassis. Evaluate the torque-converter transmission, differential, and planetary final drives as one system using oil-sample wear trends rather than swapping components piecemeal. Inspect the frame and dump-body pivot areas for cracking or repair welds before committing to a major driveline rebuild on a truck this age.
Seasonal & Environment Servicing
Cold-start protection matters on the mechanically governed 3516; confirm starting aids, battery condition, and correct-viscosity engine oil grade before winter, since jerk-pump injection is less forgiving of thick cold oil than later electronic fuel systems. In hot, dusty surface-mine settings, clean the aftercooler and radiator cores more often than the standard interval and service the air precleaner daily. In wet seasons, check suspension strut seals and final-drive and differential seals for water intrusion, since a machine this age has had decades to develop seep points.
793 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 7W-0629 | Adapter As-Filter | Scheduled service item | Check fitment → |
| 8X-4545 | Tank & Filter Ar | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
793 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 100-01 (MID 30) | Engine oil pressure reading below the normal operating range. | Low engine oil level, worn oil pump, plugged suction screen or filter, or a failing oil pressure sender. | Reduce power and stop safely, check oil level and filter condition, verify sender output before restart. |
| 100-03 (MID 30) | Engine oil pressure sender circuit reading above normal — open circuit or short to battery voltage. | Damaged sender wiring, a corroded connector, or a failed oil pressure sender. | Inspect harness and connector at the sender, check sender resistance against spec, replace if faulty. |
| 110-00 (MID 30) | Engine coolant temperature above the normal operating range. | Low coolant level, a plugged radiator core, a slipping or failed fan drive, or restricted airflow through the core. | Reduce load, let the engine idle down, check coolant level and radiator core, inspect the fan drive. |
| 110-04 (MID 30) | Coolant temperature sender circuit reading below normal — short to ground or open circuit. | Damaged sender wiring or connector, or a failed coolant temperature sender. | Check sender wiring and connector, test sender against resistance spec, replace as needed. |
| 177-00 (MID 30) | Torque converter oil temperature above the normal operating range. | Sustained converter stall on grade, low transmission/converter oil level, or a restricted oil cooler. | Reduce throttle and let the converter cool, check oil level, inspect the oil cooler for blockage. |
| 600-00 (MID 30) | Hydraulic oil temperature above the normal operating range. | Low hydraulic oil level, a restricted oil cooler, or extended high-load operation. | Check hydraulic oil level, inspect the cooler for debris, let the system cool before resuming heavy work. |
| 168-02 (MID 30) | System/battery voltage signal erratic, intermittent, or incorrect. | Loose or corroded battery cable connections, or an intermittent charging circuit fault. | Clean and torque battery terminals and ground straps, check charging circuit wiring for looseness. |
| 168-04 (MID 30) | System/battery voltage below the normal operating range. | Weak or discharged batteries, a failing alternator, or a charging circuit fault. | Load-test batteries, check alternator output, inspect charging circuit belt and wiring. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
793 attachments & work tools
Dump body
Factory-fitted single welded-steel rigid dump body sized to this truck's roughly 218 tonne (240 ton) payload class. A higher-volume body for low-density material such as coal was offered as an alternate option across this size class, though a full factory body-option catalog specific to this original generation is not preserved in current documentation - confirm exact body fitment against the machine's serial number with a dealer.
Wear liners and impact protection
Bolt-on or weld-on steel liner plates for the body floor and front wall resist abrasion and impact loading from blasted rock. Liner thickness and coverage are typically a dealer or site-fit choice rather than a fixed factory package, and selection varies with material type and site practice.
Tailgate
A dump-body tailgate was available as an option for this truck class. Deleting the tailgate lowers tare weight and cuts spillage-related cleanup for free-flowing material but can reduce load retention on steep haul grades; use varies by site and material.
Sideboards and tail extensions
Bolt-on steel sideboards and tail extensions raise heaped (volumetric) body capacity for lighter-density material, such as coal or blended overburden, without exceeding rated payload. These are site-fit additions, not standard equipment.
Body mounting and hoist
The dump body is not a quick-change work tool - it is pin-mounted to the frame and raised by twin hydraulic hoist cylinders as part of the factory chassis. There is no interchangeable work-tool coupler on this machine class the way there is on a loader or dozer.
Tires and rims
Off-the-road radial tires sized for this truck's payload class, in the general 40.00R57 size range used across the wider 793 lineage (varies by tire brand and axle/rim option), mount on multi-piece rims matched to the front and rear axles. Rock-ejector guarding ahead of the tires is commonly specified for mine-site debris protection.
Guarding and site-protection options
Common options for this size class include tire rock ejectors, ROPS/FOPS-rated cab guarding, and additional engine-compartment or electrical guarding against mine-site debris. Exact availability depends on dealer configuration for the specific serial range.
All 793 assemblies by section
Every catalogued assembly group for the Caterpillar 793. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
7e6871 Aftercooler Gp
| 7E***71 | Aftercooler Group-Water | 1 |
9y8930 Air Cleaner Gp-Lh & Rh
| 9Y***30 | Air Cleaner Group; -Rh, Lh | 1 |
9y8882 Air Cleaner Gp
| 9Y***82 | Air Cleaner Group | 1 |
4p4862 Bypass Gp-Exhaust
| 4P***62 | Bypass Group-Exhaust | 1 |
4p4861 Bypass Gp-Exhaust
| 4P***61 | Bypass Group-Exhaust | 1 |
1008020 Bypass Gp-Exhaust
| 10***20 | Bypass Group-Exhaust | 1 |
4p6031 Cartridge Gp-Turbocharger
| 4P***31 | Cartridge Group-Turbocharger | 1 |
4p6027 Cartridge Gp-Turbocharger*R
| 4P***27 | Cartridge Group-Turbocharger | 1 |
8x0192 Exhaust Ar-Body
| 8X***92 | Exhaust Ar-Body | 1 |
| 8X***51 | Pipe Group-Exhaust; -Body Flow | 1 |
| 8X***52 | Pipe Group-Exhaust; -Rh Platform | 1 |
6i1630 Indictor Gp-Filter Change
| 1P***78 | Clamp; (Hose) | 2 |
| 5P***23 | Elbow; --90 Degrees-- Tube Assembly To Horn Valve | 2 |
| 5P***11 | Tube; (Housing Drain/Manual Bleed) | 0 |
9y8914 Lines Gp-Air
| 9Y***14 | Lines Group-Air; -Turbocharger | 1 |
9y8884 Lines Gp-Air
| 9Y***84 | Lines Group-Air | 1 |
9y8910 Manifold Gp-Exhaust
| 9Y***10 | Manifold Group-Exhaust | 1 |
9y8919 Exhaust Ar-Muffler
| 9Y***93 | Muffler Group; -Rh Turbos | 1 |
| 9Y***17 | Muffler Group; -Lh Turbos | 1 |
| 9Y***19 | Muffler Ar | 1 |
9y8893 Muffler Gp
| 9Y***93 | Muffler Group; -Rh Turbos | 1 |
9y8917 Muffler Gp
| 9Y***17 | Muffler Group; -Lh Turbos | 1 |
8x2851 Piping Gp-Exhaust
| 8X***51 | Pipe Group-Exhaust; -Body Flow | 1 |
9y8888 Piping Gp-Exhaust
| 9Y***88 | Pipe Group-Exhaust; -Rh Turbos-Rh | 1 |
8x2852 Piping Gp-Exhaust
| 8X***52 | Pipe Group-Exhaust; -Rh Platform | 1 |
9y8887 Piping Gp-Exhaust
| 9Y***87 | Pipe Group-Exhaust; -Lh Turbos-Lh | 1 |
9y8924 Support Gp-Turbocharger
| 9Y***24 | Support Group-Turbocharger | 1 |
9y8911 Turbocharger Gp
| 9Y***11 | Turbocharger Group | 1 |
4p4693 Turbocharger Gp
| 4P***93 | Turbocharger Group | 1 |
4p4646 Turbocharger Gp
| 4P***46 | Turbocharger Group | 1 |
Basic Engine
4w7641 Adapter Gp-Flywheel Housing
| 4W***41 | Adapter Group-Flywheel Housing | 1 |
2w0582 Air Compressor Gp*R
| 2W***82 | Air Compressor Group | 1 |
1w8924 Air Compressor Gp
| 1W***24 | Air Compressor Group | 1 |
9y8898 Belt Tightener Gp
| 9Y***98 | Belt Tensioner Group | 1 |
4p5222 Camshaft Gp
| 4P***22 | Camshaft Group; Camshaft Gp-Single | 1 |
7e6820 Camshaft Gp-Single
| 7E***20 | Camshaft Group; Camshaft Gp (Single) | 1 |
9y8894 Cover Gp-Cylinder Block
| 9Y***94 | Cover Group-Cylinder Block | 1 |
9y8900 Cover Gp-Flywheel Housing
| 9Y***00 | Cover Group-Flywheel Housing | 1 |
2w0202 Cover Gp-Front Housing
| 2W***02 | Cover Group-Front Housing; Cover Gp-Front Structure | 1 |
7n1855 Cover Gp-Valve Mechanism
| 7N***55 | Cover Group-Valve Mechanism; Valve Mechanisn Cover Group | 1 |
8n0337 Crankshaft Gp
| 8N***37 | Crankshaft Group; Crankshaft Group | 1 |
7e4937 Cylinder Block As
| 7E***37 | Cylinder Block As | 1 |
7c8147 Cylinder Block Gp
7e4668 Cylinder Block Gp
| 7E***68 | Cylinder Block Group | 1 |
4p7264 Cylinder Block Gp
| 4P***64 | Cylinder Block Group | 1 |
7e5860 Cylinder Head As
| 7E***60 | Cylinder Head As | 1 |
7e8762 Cylinder Head As*R
| 7E***62 | Cylinder Head As | 1 |
7e5858 Cylinder Head As
| 7E***58 | Cylinder Head As | 1 |
7e8760 Cylinder Head As
| 7E***60 | Cylinder Head As | 1 |
7e8759 Cylinder Head Gp*R
| 7E***59 | Cylinder Head Group | 1 |
7c8130 Cylinder Head Gp*R
| 7C***30 | Cylinder Head Group | 1 |
7c8120 Cylinder Head Gp
| 7C***20 | Cylinder Head Group | 1 |
7e8758 Cylinder Head Gp*R
| 7E***58 | Cylinder Head Group | 1 |
9y4748 Damper Gp
| 9Y***48 | Damper Group | 1 |
7c0264 Drive Gp-Accessory-Upper Rh
| 7C***64 | Drive Group-Accessory; -Upper, Rh | 1 |
9y1595 Drive Gp-Accessory
| 9Y***95 | Drive Group-Accessory; -Pump Drive | 1 |
9y8895 Drive Gp-Auxiliary-Lower Lh
| 9Y***95 | Drive Group-Auxiliary; -Lower, Lh-Auxiliary Pump | 1 |
9y8899 Drive Gp-Auxiliary-Rear
| 9Y***99 | Drive Group-Auxiliary; Drive Gp-Auxiliary (Rear) | 1 |
9y8897 Drive Gp-Fan
| 9Y***97 | Drive Group-Fan | 1 |
2w9075 Flywheel Gp
| 2W***75 | Flywheel Group | 1 |
8n7174 Gear Gp-Front
| 8N***74 | Gear Group-Front; -Standard Rotation-Accessory Drive-Jacket Water Pump-Fuel Transfer Pump-Oil Pump Drive | 1 |
4w5910 Gear Gp-Rear
| 4W***10 | Gear Group-Rear | 1 |
7w6445 Housing Gp-Flywheel
| 7W***45 | Housing Group-Flywheel | 1 |
7e9086 Housing Gp-Flywheel
| 7E***86 | Housing Group-Flywheel | 1 |
7w3724 Housing Gp-Front
| 7W***24 | Housing Group-Front; -Accessory Drive | 1 |
7w5949 Insert-Seat
| 7W***49 | Insert-Liner Seat | 1 |
7e2865 Kit-Insert
| 7E***65 | Kit-Insert; -Cylinder Block | 1 |
9y8921 Lifting Gp-Engine
| 9Y***21 | Lifting Group-Engine | 1 |
9y8922 Lines Gp-Air Compressor
| 9Y***22 | Lines Group-Air Compressor | 1 |
7e8536 Pan Gp-Oil
| 7E***36 | Pan Group-Oil; -Front Sump | 1 |
7c8654 Pan Gp-Oil
| 7C***54 | Pan Group-Oil; -Front Sump | 1 |
7e1038 Piston & Rod Gp
| 7E***38 | Piston & Rod Group | 1 |
6i2861 Piston & Rod Gp
| 6I***61 | Piston & Rod Group | 1 |
7e1037 Piston Gp*R
| 7E***37 | Piston Group | 1 |
7w3813 Seal Gp-Crankshaft
| 7W***13 | Seal Group-Crankshaft | 1 |
7n7660 Shaft Gp-Stub
| 7N***60 | Shaft Group-Stub; -Crankshaft Pulley | 1 |
9y8925 Support Gp-Engine
| 9Y***25 | Support Group-Engine | 1 |
7e8098 Thermocouple Gp
| 7E***98 | Thermocouple Group | 1 |
7n1863 Trunnion Gp-Engine
| 7N***63 | Trunnion Group-Engine | 1 |
4w1035 Valve Mechanism Gp
| 4W***35 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Braking System
8x3377 Air Dryer Gp
| 8X***77 | Air Dryer Group | 1 |
8x0222 Brake Gp-Service & Parking*R
| 8X***22 | Brake Group-Service & Parking; -Pulled Unit | 1 |
8x0241 Brake Gp-Service & Parking
| 8X***41 | Brake Group-Service & Parking; -Rear | 1 |
5t6544 Control Gp-Brake
| 5T***44 | Control Group-Brake; -Cab-Parking Brake | 1 |
8x0225 Control Gp-Brake-Part 1 Of 2
| 8X***25 | Control Group-Brake; -Chassis | 1 |
8x0225 Control Gp-Brake-Part 2 Of 2
| 8X***25 | Control Group-Brake; -Chassis | 1 |
5t0851 Control Gp-Service Brake-Part 1 Of 3
| 5T***51 | Control Group-Service Brake | 1 |
5t0851 Control Gp-Service Brake-Part 2 Of 3
| 5T***51 | Control Group-Service Brake | 1 |
5t0851 Control Gp-Service Brake-Part 3 Of 3
| 5T***51 | Control Group-Service Brake | 1 |
9t7204 Cylinder Gp-Air (Chgs 00-04)
| 9T***04 | Cylinder Group-Air; -Parking, Secondary Brake-Tc, Front Brake Cooling | 1 |
8w3406 Cylinder Gp-Air Over Hyd (Chgs 01-06)
| 8W***06 | Cylinder Group-Air/Hydraulic; -Front Brake-Tractor Rear Brake-Pulled Unit Brake | 1 |
8w3405 Cylinder Gp-Air Over Hyd (Chgs 02-05)
| 8W***05 | Cylinder Group-Air/Hydraulic; -Service Brake | 1 |
8x7220 Cylinder Gp-Air Over Hyd (Chg 00)
| 8X***20 | Cylinder Group-Air/Hydraulic; -Front Brake-Tractor Rear Brake-Pulled Unit Brake | 1 |
8x0236 Lines Gp-Service Brake-Part 2 Of 2
| 8X***36 | Lines Group-Brake; -Rear | 1 |
8x0236 Lines Gp-Service Brake-Part 1 Of 2
| 8X***36 | Lines Group-Brake; -Rear | 1 |
8x2833 Lines Gp-Service Brake
| 8X***33 | Lines Group-Brake; -Front & Rear | 1 |
8x0235 Lines Gp-Service Brake
| 8X***35 | Lines Group-Brake; -Front | 1 |
8x0234 Lines Gp-Oil Cooler-Part 4 Of 4
| 8X***34 | Lines Group-Oil Cooler; -Tc & Brakes | 1 |
8x0234 Lines Gp-Oil Cooler-Part 1 Of 4
| 8X***34 | Lines Group-Oil Cooler; -Tc & Brakes | 1 |
8x0234 Lines Gp-Oil Cooler-Part 2 Of 4
| 8X***34 | Lines Group-Oil Cooler; -Tc & Brakes | 1 |
8x2834 Lines Gp-Oil Cooler
| 8X***34 | Lines Group-Oil Cooler; -Brake Cooling | 1 |
8x0234 Lines Gp-Oil Cooler-Part 3 Of 4
| 8X***34 | Lines Group-Oil Cooler; -Tc & Brakes | 1 |
8w9925 Pump Gp-Electric Drive
| 8W***25 | Pump & Motor Group-Brake Release; -Park, Secondary Brake Release | 1 |
6e2143 Screen Gp
| 6E***43 | Screen Group; -Tc, Front Brake Cooling | 1 |
5t7670 Slack Adjuster Gp
| 5T***70 | Slack Adjuster Group; -Rear Brake | 1 |
6g9881 Slack Adjuster Gp
| 6G***81 | Slack Adjuster Group; -Pulled Unit Brakes | 1 |
5t0861 Tank Gp-Air
| 5T***61 | Tank Group-Air | 1 |
8x2840 Tank Gp-Air
| 8X***40 | Tank Group-Air; -Primary-Platform, Rh | 1 |
7d8075 Valve As
| 7D***75 | Valve As | 1 |
4d0487 Valve As-Check
| 4D***87 | Valve As-Check; -Air Supply-Primary Air Tank-Service Brake Control | 1 |
9d3886 Valve Gp-Air Control
| 9D***86 | Valve Group-Air Control; -Manual Retarder | 1 |
9d8098 Valve Gp-Air Control
| 9D***98 | Valve Group-Air Control; -Secondary Brake | 1 |
4d3278 Valve Gp-Air Control
| 4D***78 | Valve Group-Air Control; -Parking Brake Switch | 1 |
9d8097 Valve Gp-Air Control
| 9D***97 | Valve Group-Air Control; -Service Brake | 1 |
9t4772 Valve Gp-Brake
| 9T***72 | Valve Group-Brake; -Parking, Secondary Brake | 1 |
1u2644 Valve Gp-Check
| 1U***44 | Valve Group-Check; -Secondary, Parking Brake | 1 |
6d3781 Valve Gp-Check
| 6D***81 | Valve Group-Check; -Service Brake Diverter-Retarder Control | 1 |
6e1037 Valve Gp-Diverter
| 6E***37 | Valve Group-Diverter; -Tc, Front Brake Cooling | 1 |
9t4770 Valve Gp-Relief
| 9T***70 | Valve Group-Relief; -Parking, Secondary Brake | 1 |
3t0062 Valve Gp-Solenoid
| 3T***62 | Valve Group-Solenoid; (Traction Control Proportional) | 1 |
9g9208 Control Gp-Traction-Part 1 Of 2
| 9G***08 | Valve Group-Traction Control; -Antispin | 1 |
9g9208 Control Gp-Traction-Part 2 Of 2
| 9G***08 | Valve Group-Traction Control; -Antispin | 1 |
Cooling System
9x9482 Valve Gp-Solenoid
| 9X***82 | Valve Group-Solenoid; (Apron Lower Air) | 1 |
9y8926 Connection Gp-Water
| 9Y***26 | Connection Group-Water | 1 |
4w5891 Cooler Gp-Engine Oil
| 4W***91 | Cooler Group-Engine Oil | 1 |
1008007 Cooler Gp-Engine Oil
| 10***07 | Cooler Group-Engine Oil | 1 |
1008008 Core Gp-Oil Cooler*R
| 10***08 | Core Group-Engine Oil Cooler | 1 |
9y8890 Core Gp-Oil Cooler*R
| 9Y***90 | Core Group-Oil Cooler; -Brake Cooling | 1 |
9y8892 Core Gp-Oil Cooler*R
| 9Y***92 | Core Group-Oil Cooler; -Rear Brake, Hoist-Front Brake, Tc | 1 |
7e5835 Cover Gp-Protection
| 7E***35 | Cover Group-Protection; -Radiator Cap | 1 |
9y8883 Fan Gp-Suction
| 9Y***83 | Fan Group-Suction | 1 |
2a6911 Grill-Radiator
| 2A***11 | Grill-Radiator | 1 |
9y8889 Lines Gp-Water-Part 1 Of 2
| 9Y***89 | Lines Group-Water | 1 |
9y8928 Lines Gp-Water
| 9Y***28 | Lines Group-Water; Lines Gp-Water (Bypass) | 1 |
9y8908 Lines Gp-Water
| 9Y***08 | Lines Group-Water; -Aftercooler | 1 |
9y8905 Lines Gp-Water
| 9Y***05 | Lines Group-Water; Lines Gp-Water (Upper) | 1 |
9y8907 Lines Gp-Water
| 9Y***07 | Lines Group-Water; Lines Gp-Water (Turbocharger) | 1 |
9y9559 Lines Gp-Water
| 9Y***59 | Lines Group-Water; -Expansion Tank | 1 |
9y8889 Lines Gp-Water-Part 2 Of 2
| 9Y***89 | Lines Group-Water | 1 |
9y8906 Lines Gp-Water
| 9Y***06 | Lines Group-Water; Lines Gp-Water (Lower) | 1 |
9y8909 Pump Gp-Auxiliary Fresh Water
| 9Y***09 | Pump Group-Auxiliary Water; -Fresh Water | 1 |
2w9729 Pump Gp-Water
| 2W***29 | Pump Group-Water; Water Pump Group | 1 |
2w9728 Pump Gp-Water*R
| 2W***28 | Pump Group-Water | 1 |
9y8916 Pump Gp-Water
| 9Y***16 | Pump Group-Water; -Fresh Water | 1 |
9y8885 Radiator Gp
| 9Y***85 | Radiator Group | 1 |
9y8886 Radiator Gp
| 9Y***86 | Radiator Group | 1 |
9y8923 Regulator Gp
| 9Y***23 | Regulator Group | 1 |
9y8904 Regulator Gp
| 9Y***04 | Regulator Group; -Outlet Control | 1 |
8x2814 Shutter Gp-Radiator
| 8X***14 | Shutter Group-Radiator | 1 |
8x5643 Shutter Gp
| 8X***43 | Shutter Group-Radiator | 1 |
9y8918 Tank Gp-Expansion
| 9Y***18 | Tank Group-Expansion; -Radiator Coolant | 1 |
6d1039 Valve As
Electrical System
7x6398 Lamp Gp-Dome
| 7X***98 | Lamp Group-Dome; -Cab | 1 |
9g9813 Alarm Gp
| 9G***13 | Alarm Group; -Action-Action, Engine Overspeed | 1 |
8n0999 Alternator Gp-Charging*R
| 8N***99 | Alternator Group-Charging | 1 |
3e7577 Alternator Gp-Charging*R
| 3E***77 | Alternator Group-Charging | 1 |
9x9746 Control Gp-Electronic
| 9X***46 | Control Group-Electronic | 1 |
9x9827 Control Gp-Electronic
| 9X***27 | Control Group-Electronic | 1 |
9x5308 Control Gp-Payload Electronic
| 9X***08 | Control Group-Payload Electronic; -Operator Display | 1 |
9x6847 Control Gp-Payload Electronic
| 9X***47 | Control Group-Payload Electronic; -Operator Display | 1 |
9x6846 Control Gp-Payload Electronic
| 9X***46 | Control Group-Payload Electronic | 1 |
3t5438 Distributor Gp-Electronic
| 3T***38 | Distributor Group-Electronic; -Transmission Speed | 1 |
4p3747 Guard Gp-Belt
| 4P***47 | Guard Group-Belt; -Alternator | 1 |
7w5780 Guard Gp-Belt
| 7W***80 | Guard Group-Belt; -Alternator | 1 |
6g9462 Harness As
| 6G***62 | Harness As | 1 |
5t8619 Harness As-Circuit Breaker
| 5T***19 | Harness As-Circuit Breaker | 1 |
3t3967 Lamp Gp
| 3T***67 | Lamp Group; -Parking, Turn | 1 |
7x6219 Lamp Gp
| 7X***19 | Lamp Group; (Stop/Tail) | 1 |
3t3968 Lamp Gp
| 3T***68 | Lamp Group; (Rear) | 1 |
9x1439 Lamp Gp-Flood
| 9X***39 | Lamp Group-Flood; -Rear-Ladder Access-Engine Work Light | 1 |
3t4411 Lamp Gp-Flood
| 3T***11 | Lamp Group-Flood; -Hood Light-Ladder | 1 |
9x7170 Lamp Gp-Head
| 9X***70 | Lamp Group-Head; -High Beam | 1 |
9x7169 Lamp Gp-Head
| 9X***69 | Lamp Group-Head; -Low Beam | 1 |
8t9684 Lamp Gp-Signal
| 8T***84 | Lamp Group-Signal; -Payload Monitoring | 1 |
8t9683 Lamp Gp-Signal
| 8T***83 | Lamp Group-Signal; -Payload Monitoring | 1 |
8x9330 Lighting Gp
| 8X***30 | Lighting Group-Ladder | 1 |
8x2832 Lighting Gp-Signal
| 8X***32 | Lighting Group-Signal; -Lh Fender | 1 |
7e4836 Mounting Gp-Alternator
| 7E***36 | Mounting Group-Alternator | 1 |
5t7526 Panel Gp-Circuit Breaker
| 5T***26 | Panel Group-Circuit Breaker | 1 |
6v5828 Sensor Gp-Tmsn Position
| 6V***28 | Sensor Group-Position; Control Gp-Electronic-Actual Gear Switch | 1 |
1267896 Sensor Gp-Tmsn Position
| 12***96 | Sensor Group-Position; -Transmission Shift Lever | 1 |
3t0029 Sensor Gp-Speed
| 3T***29 | Sensor Group-Speed; -Transmission Output | 1 |
7n0718 Switch As-Disconnect
| 7N***18 | Switch As-Disconnect; -Battery-Ground Level | 1 |
8c5681 Switch As-Limit
| 8C***81 | Switch As-Limit; -Transmission Neutralizer | 1 |
1n4647 Switch Gp-Flow-Coolant
| 1N***47 | Switch Group-Flow | 1 |
9x3040 Switch Gp-Flow-Coolant
| 9X***40 | Switch Group-Flow; -Coolant | 1 |
9g7641 Switch Gp-Start
| 9G***41 | Switch Group-Start; -Engine, Key-Vims Service | 1 |
8x0271 Wiring & Lighting Gp-Part 1 Of 6
| 8X***71 | Wiring & Lighting Group | 1 |
8x0271 Wiring & Lighting Gp-Part 3 Of 6
| 8X***71 | Wiring & Lighting Group | 1 |
8x0271 Wiring & Lighting Gp-Part 4 Of 6
| 8X***71 | Wiring & Lighting Group | 1 |
8x0271 Wiring & Lighting Gp-Part 5 Of 6
| 8X***71 | Wiring & Lighting Group | 1 |
8x0271 Wiring & Lighting Gp-Part 6 Of 6
| 8X***71 | Wiring & Lighting Group | 1 |
8x0271 Wiring & Lighting Gp-Part 2 Of 6
| 8X***71 | Wiring & Lighting Group | 1 |
8x7194 Wiring Gp
| 8X***94 | Wiring Group; -Cold Weather Starting | 1 |
8x2843 Wiring Gp
| 8X***43 | Wiring Group | 1 |
8x2859 Wiring Gp-Air Starting
| 8X***59 | Wiring Group-Air Starting | 1 |
8w0584 Wiring Gp-Cab-Part 4 Of 4
| 8W***84 | Wiring Group-Cab | 1 |
8w4767 Wiring Gp-Cab-Part 2 Of 2
| 8W***67 | Wiring Group-Cab | 1 |
8w0584 Wiring Gp-Cab-Part 3 Of 4
| 8W***84 | Wiring Group-Cab | 1 |
8x0219 Wiring Gp-Cab
| 8X***19 | Wiring Group-Cab | 1 |
8w4767 Wiring Gp-Cab-Part 1 Of 2
| 8W***67 | Wiring Group-Cab | 1 |
8w0584 Wiring Gp-Cab-Part 1 Of 4
| 8W***84 | Wiring Group-Cab | 1 |
8w0584 Wiring Gp-Cab-Part 2 Of 4
| 8W***84 | Wiring Group-Cab | 1 |
Engine Arrangement
9y8881 Engine Ar-Part 1 Of 3*R
| 10***07 | Cooler Group-Engine Oil | 1 |
| 1W***24 | Air Compressor Group | 1 |
| 2W***02 | Cover Group-Front Housing; Cover Gp-Front Structure | 1 |
9y8881 Engine Ar-Part 2 Of 3*R
| 2W***29 | Pump Group-Water; Water Pump Group | 1 |
| 4P***47 | Guard Group-Belt; -Alternator | 1 |
| 4W***10 | Gear Group-Rear | 1 |
9y8881 Engine Ar-Part 3 Of 3*R
| 1N***47 | Switch Group-Flow | 1 |
| 2W***29 | Pump Group-Water; Water Pump Group | 0 |
| 3E***92 | Kit-Gasket; (Water Lines Group) | 0 |
Final Drive
8x0250 Axle & Mounting Gp
| 8X***50 | Axle & Mounting Group | 1 |
8x0243 Differential & Bevel Gear Gp
| 8X***43 | Differential & Bevel Gear Group | 1 |
8x0244 Differential Gp
| 8X***44 | Differential Group | 1 |
8x0246 Housing Gp-Rear Axle
| 8X***46 | Housing Group-Rear Axle | 1 |
8x2809 Fastener Gp
| 8X***09 | Mounting Group-Wheel; -Rear | 1 |
8x0247 Rim Gp-Demountable
| 8X***47 | Rim Group-Demountable | 1 |
7i5051 Rim Gp-Single
| 2D***08 | Grommmet | 1 |
| 5T***90 | Valve Group-Tire | 1 |
| 5T***66 | Locknut; (11/16-24-Thd) | 1 |
8x0249 Drive Shaft Gp
| 8X***49 | Shaft Group-Drive; -Main | 1 |
5t1033 Drive Shaft Gp
| 5T***33 | Shaft Group-Pump Drive | 1 |
8x0433 Slip Joint Gp
| 8X***33 | Slip Joint Group | 1 |
8x8014 Universal Joint Gp
| 8X***14 | Universal Joint Group-Pump Drive | 1 |
8x0252 Wheel Gp-Final Drive & Brake
| 8X***52 | Wheel Group-Final Drive & Brake | 1 |
Frame And Body
8x2870 Body & Canopy As
| 8X***70 | Body & Canopy As; -Heated/Taconite | 1 |
8x0189 Body & Canopy As
| 8X***89 | Body & Canopy As; -Taconite | 1 |
8x3382 Body & Canopy As
| 8X***82 | Body & Canopy As | 1 |
8x0187 Body & Canopy As
| 8X***87 | Body & Canopy As | 1 |
8x2868 Body & Canopy As
| 8X***68 | Body & Canopy As; -Heavy Duty/Heated | 1 |
8x2866 Body & Canopy As
| 8X***66 | Body & Canopy As; -Heated | 1 |
8x0228 Cowling Gp
| 8X***28 | Cowling Group | 1 |
8x1071 Extension As-Tail
| 8X***71 | Extension As-Tail | 1 |
8x0974 Extension As-Tail
| 8X***74 | Extension As-Tail; -Heavy Duty | 1 |
8x4453 Fastener Gp-Handhold
| 8X***53 | Fastener Group-Handrail; -Handrail | 1 |
8x0229 Fender Gp
| 8X***29 | Fender Group; -Mud Guard | 1 |
8x0201 Frame Gp
| 8X***01 | Frame Group | 1 |
8x3605 Grill
2a7249 Guard Gp-Drive Shaft
| 2A***49 | Guard Group-Drive Shaft | 1 |
8x2811 Handhold Gp
| 8X***11 | Handrail Group | 1 |
8x0202 Hood Gp-Truck-Part 1 Of 2
| 8X***02 | Hood Group-Truck | 1 |
8x0202 Hood Gp-Truck-Part 2 Of 2
| 8X***02 | Hood Group-Truck | 1 |
8x0204 Ladder Gp
| 8X***04 | Ladder Group; -Stairway | 1 |
8x4180 Latch Gp-Hood
| 8X***80 | Latch Group-Hood | 1 |
8x0195 Liner Gp-Body
| 8X***95 | Liner Group-Body; -Dual Slope | 1 |
8x0194 Liner Gp-Body
| 8X***94 | Liner Group-Body; -Dual Slope | 1 |
8x0987 Liner Gp-Extension (Tail)
| 8X***87 | Liner Group-Extension; -Tail | 1 |
8x0207 Lines Gp-Grease-Part 2 Of 2
| 8X***07 | Lines Group-Grease; -Central | 1 |
8x0207 Lines Gp-Grease-Part 1 Of 2
| 8X***07 | Lines Group-Grease; -Central | 1 |
8x2845 Lubrication Gp-Automatic
| 8X***45 | Lubrication Group-Automatic; -Chassis | 1 |
8x2846 Lubrication Gp-Automatic
| 8X***46 | Lubrication Group-Automatic; -Rh Platform | 1 |
8x2812 Mounting Gp-Cab
| 8X***12 | Mounting Group-Cab | 1 |
8x0263 Mounting Gp-Hydraulic Tank
| 8X***63 | Mounting Group-Hydraulic Tank; -Brake, Hoist | 1 |
8x2836 Mounting Gp-Platform-Rh
| 8X***36 | Mounting Group-Platform; -Rh | 1 |
8x2642 Mounting Gp-Rim
| 8X***42 | Mounting Group-Rim; -Front & Rear | 1 |
8x2813 Mounting Gp-Body
| 8X***13 | Mounting Group-Truck Body; -Dual Slope | 1 |
8x0264 Platform Gp-Rh
| 8X***64 | Platform Group-Rh | 1 |
5t7800 Pump Gp-Lubrication
| 5T***00 | Pump Group-Lubrication; -Automatic Lubrication | 1 |
8w4594 Pump Gp-Lubrication
| 8W***94 | Pump Group-Lubrication; -Automatic Lubrication | 1 |
9y8896 Step Gp
| 9Y***96 | Step Group | 1 |
8x0269 Tread Gp-Safety
| 8X***69 | Tread Group-Nonskid | 1 |
8x2842 Tread Gp-Safety
| 8X***42 | Tread Group-Nonskid | 1 |
8w2597 Valve Gp-Lube Distribution
| 8W***97 | Valve Group-Lube Distribution; -4-Injector | 1 |
5t5009 Valve Gp-Lube Distribution
| 5T***09 | Valve Group-Lube Distribution; -3-Injector-Steering Cyl, Linkage, Rh, Lh-Hoist, Rear Susp Cyl, Rh, Lh-Front Susp, Steer Cyl, Rh, Lh | 1 |
5t5010 Valve Gp-Lube Distribution
| 5T***10 | Valve Group-Lube Distribution; -5-Injector | 1 |
8x2837 Walkway Gp
| 8X***37 | Walkway Group; -Ladder | 1 |
8x0223 Catwalk Gp
| 8X***23 | Walkway Group | 1 |
8x0270 Wheel Gp-Suspension & Brake-Part 1 Of 2
| 8X***70 | Wheel & Brake Group; -Front | 1 |
8x0270 Wheel Gp-Suspension & Brake-Part 2 Of 2
| 8X***70 | Wheel & Brake Group; -Front | 1 |
Fuel System
4w2967 Control Gp-Fuel Injection-Part 2 Of 2
| 4W***67 | Control Group-Fuel Injection; Fuel Injection Control Group | 1 |
4w2967 Control Gp-Fuel Injection-Part 1 Of 2
| 4W***67 | Control Group-Fuel Injection; Fuel Injection Control Group | 1 |
6i3843 Control Gp-Fuel Ratio
| 6I***43 | Control Group-Fuel Ratio | 1 |
4p6538 Control Gp-Governor
| 4P***38 | Control Group-Governor | 1 |
8x8879 Control Gp-Governor
| 8X***79 | Control Group-Governor | 1 |
5t0853 Control Gp-Governor
| 5T***53 | Control Group-Governor | 1 |
1w2135 Drive Gp-Governor
| 1W***35 | Drive Group-Governor; Governor Drive Group | 1 |
8x2570 Fastener Gp
| 8X***70 | Fastener Group-Fuel Tank | 1 |
1w6034 Fastener Gp-Governor-Rh
| 1W***34 | Fastener Group-Governor | 1 |
9y9960 Filter Gp-Fuel
| 9Y***60 | Filter Group-Fuel | 1 |
7e6719 Filter Gp-Primary Fuel
| 7E***19 | Filter Group-Primary Fuel | 1 |
6i0660 Governor Gp-Part 4 Of 6
| 6I***60 | Governor Group | 1 |
6i0660 Governor Gp-Part 2 Of 6
| 6I***60 | Governor Group | 1 |
9y8929 Governor Gp
| 9Y***29 | Governor Group | 1 |
6i0660 Governor Gp-Part 5 Of 6
| 6I***60 | Governor Group | 1 |
6i0660 Governor Gp-Part 6 Of 6
| 6I***60 | Governor Group | 1 |
6i0660 Governor Gp-Part 3 Of 6
| 6I***60 | Governor Group | 1 |
6i0660 Governor Gp-Part 1 Of 6
| 6I***60 | Governor Group | 1 |
8x0193 Heater Gp-Fuel
| 8X***93 | Heater Group-Fuel | 1 |
4p2549 Injector Gp-Fuel*R
| 4P***49 | Injector Group-Fuel | 1 |
1006930 Injector Gp-Fuel*R
| 10***30 | Injector Group-Fuel | 1 |
1006306 Kit-Conversion
| 10***06 | Kit-Governor Conversion | 1 |
8x0206 Lines Gp-Fuel
| 8X***06 | Lines Group-Fuel | 1 |
8x4546 Lines Gp-Fuel Filter
| 8X***46 | Lines Group-Fuel Filter | 1 |
9y8920 Lines Gp-Fuel Injection-Part 2 Of 3
| 9Y***20 | Lines Group-Fuel Injection | 1 |
9y8920 Lines Gp-Fuel Injection-Part 3 Of 3
| 9Y***20 | Lines Group-Fuel Injection | 1 |
9y8920 Lines Gp-Fuel Injection-Part 1 Of 3
| 9Y***20 | Lines Group-Fuel Injection | 1 |
1w2136 Lines Gp-Fuel Ratio Control-Rh
| 1W***36 | Lines Group-Fuel Ratio Control | 1 |
9y9558 Pump Gp-Fuel Injection
| 9Y***58 | Pump Group-Fuel Injection | 1 |
8n7763 Pump Gp-Fuel Priming
| 8N***63 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
1n4478 Pump Gp-Fuel Transfer*R
| 1N***78 | Pump Group-Fuel Transfer; (1-Section Gear) | 1 |
8n6151 Pump Gp-Fuel Transfer
| 8N***51 | Pump Group-Fuel Transfer; (1-Section Gear) | 1 |
6i3842 Pump Gp-Gerotor
| 6I***42 | Pump Group-Gerotor; (Governor) | 1 |
8w5331 Sender Gp-Float
| 8W***31 | Sensor Group-Fuel Level; -Float | 1 |
7w3555 Shutoff Gp-Electrical
| 7W***55 | Shutoff Group-Electrical | 1 |
1w4861 Shutoff Gp-Manual
| 1W***61 | Shutoff Group-Manual | 1 |
8x0265 Shutoff Gp-Mechanical
| 8X***65 | Shutoff Group-Mechanical | 1 |
8x4545 Tank & Filter Ar
| 8X***67 | Tank Group-Fuel | 1 |
| 8X***45 | Tank & Filter Ar | 1 |
| 8X***46 | Lines Group-Fuel Filter | 1 |
8x0267 Tank Gp-Fuel
| 8X***67 | Tank Group-Fuel | 1 |
2g9000 Adapter Gp-Fast Fill Fuel
| 2G***00 | Valve As-Tank | 1 |
8x6866 Valve Gp-Air Control
| 8X***66 | Valve Group-Air Control | 1 |
5d0470 Valve Gp-Quick Release
| 5D***70 | Valve Group-Quick Release; -Parking Brake-Air | 1 |
Hydraulic System
9g9288 Cover Gp-Hydraulic Tank Cap
| 9G***88 | Protection Cover Group; -Hydraulic Tank-Steering Tank Fill Cap-Hydraulic Tank Fill Cap | 1 |
8x0227 Control Gp-Hoist
| 8X***27 | Control Group-Hoist; -Chassis | 1 |
5t6716 Control Gp-Hoist
| 5T***16 | Control Group-Hoist; -Cab | 1 |
6g8390 Cover Gp-Hydraulic Tank Cap
| 6G***90 | Covers Group-Protection; -Brake, Hoist, Torque Converter | 1 |
9t8911 Cylinder Gp-Hoist*R (Chgs 00-04)
| 9T***11 | Cylinder Group-Hoist | 1 |
8x2796 Drive Gp-Pump
| 8X***96 | Drive Group-Pump | 1 |
8x2797 Fastener Gp-Pump Drive
| 8X***97 | Fastener Group-Pump Drive | 1 |
8x0232 Lines Gp-Hoist-Part 2 Of 2
| 8X***32 | Lines Group-Hoist | 1 |
8x0232 Lines Gp-Hoist-Part 1 Of 2
| 8X***32 | Lines Group-Hoist | 1 |
6e2308 Manifold Gp
| 6E***08 | Manifold Group; -Pulled Unit | 1 |
8x3380 Mounting Gp-Cylinder
| 8X***80 | Mounting Group-Cylinder; -Hoist | 1 |
8x4902 Pump Gp-Gear
| 8X***02 | Pump Group-Gear; -Hoist, Rear Brake Cooling | 1 |
9g9904 Pump Gp-Gear
| 9G***04 | Pump Group-Gear; -Xmsn Charging, Scavenge, Lube | 1 |
8e0604 Pump Gp-Gear
| 8E***04 | Pump Group-Gear; -Tc, Parking Brake Release | 1 |
6e1983 Pump Gp-Gear
| 6E***83 | Pump Group-Gear | 1 |
9g9905 Pump Gp-Gear
| 9G***05 | Pump Group-Gear; -Supplemental Brake Cooling-Xmsn Charging, Scavenge, Lube | 1 |
6y5791 Pump Gp-Gear
| 6Y***91 | Pump Group-Gear; -Tc, Parking Brk Rel, Brk Clg | 1 |
8e0605 Pump Gp-Gear
| 8E***05 | Pump Group-Gear; -Supplemental Brake Cooling | 1 |
6y5792 Pump Gp-Gear
| 6Y***92 | Pump Group-Gear; -Brake Cooling | 1 |
9t8920 Pump Gp-Gear
| 9T***20 | Pump Group-Gear | 1 |
8x0275 Pump Gp-Gear
| 8X***75 | Pump Group-Gear; -Hoist, Rear Brake Cooling | 1 |
9x7781 Switch Gp-Filter Bypass
| 9X***81 | Switch Group-Bypass; -Xmsn Lubrication Supply Filter-Xmsn Lubrication Charge Filter-Hoist Screen-Tc, Front Brake Cooling-Transmission Oil Filter-Rear Axle Oil Filter | 1 |
6e1851 Tank Gp-Brake
| 6E***51 | Tank Group-Brake; -Oil Reserve | 1 |
9t8921 Tank Gp-Hydraulic & Tmsn-Part 2 Of 2
| 9T***21 | Tank Group-Hydraulic & Tmsn | 1 |
9t8921 Tank Gp-Hydraulic & Tmsn-Part 1 Of 2
| 9T***21 | Tank Group-Hydraulic & Tmsn | 1 |
9j8225 Valve Gp-Relief
| 9J***25 | Valve Group; -Brake Cooling | 1 |
6e0732 Valve Gp
| 6E***32 | Valve Group; -Pilot Cartridge | 1 |
6e4518 Valve Gp
| 6E***18 | Valve Group; -Hoist Pilot | 1 |
6e6318 Valve Gp-Control
| 6E***18 | Valve Group-Control; -Hoist | 1 |
9t8922 Valve Gp-Control
| 9T***22 | Valve Group-Control | 1 |
6e1068 Valve Gp-Pilot
| 6E***68 | Valve Group-Pilot; -Hoist | 1 |
9t8924 Valve Gp-Relief
| 9T***24 | Valve Group-Relief; -Pilot Operated Hoist | 1 |
6e5855 Valve Gp-Relief
| 6E***55 | Valve Group-Relief; -Tc, Hoist, Rear Brake Cooler | 1 |
Lubrication System
1n3262 Extension Gp-Drain
| 1N***62 | Extension Group-Drain; -Engine Oil | 1 |
4w1449 Breather Gp
| 4W***49 | Breather Group; Breather Gp-Crankcase | 1 |
2w3701 Filler Gp-Oil
| 2W***01 | Filler Group-Oil | 1 |
9y8901 Filter Gp-Oil
| 9Y***01 | Filter Group-Engine Oil | 1 |
4w0472 Fumes Disposal Gp
| 4W***72 | Fumes Disposal Group; Fumes Disposal Group | 1 |
7c6102 Gauge Gp-Oil Level (Dipstick)
| 7C***02 | Gauge Group-Oil Level (Dipstick); Gauge Gp-Engine Oil Level (Dipstick) | 1 |
9y8902 Lines Gp-Engine Oil-Part 1 Of 2
| 9Y***02 | Lines Group-Engine Oil | 1 |
9y8902 Lines Gp-Engine Oil-Part 2 Of 2
| 9Y***02 | Lines Group-Engine Oil | 1 |
9y8903 Lines Gp-Turbocharger Oil
| 9Y***03 | Lines Group-Turbocharger Oil | 1 |
8x0191 Oil Change Gp-High Speed
| 8X***91 | Oil Change Group-High Speed | 1 |
4p5638 Pump Gp-Engine Oil*R
| 4P***38 | Pump Group-Engine Oil; -2-Section Gear | 1 |
8n6152 Pump Gp-Engine Oil
| 8N***52 | Pump Group-Engine Oil; -2-Section Gear | 1 |
1w8508 Pump Gp-Scavenge*R
| 1W***08 | Pump Group-Scavenge; -Rear Sump-Front Sump | 1 |
8n2012 Pump Gp-Scavenge
| 8N***12 | Pump Group-Scavenge; -Front Sump | 1 |
Operator Station
8x0213 Air Conditioner & Mounting Gp
| 8X***13 | Air Conditioner & Mounting Group | 1 |
3t4386 Air Conditioner Gp-Part 4 Of 4
| 3T***86 | Air Conditioner Group | 1 |
3t4386 Air Conditioner Gp-Part 3 Of 4
| 3T***86 | Air Conditioner Group | 1 |
3t4386 Air Conditioner Gp-Part 2 Of 4
| 3T***86 | Air Conditioner Group | 1 |
3t4386 Air Conditioner Gp-Part 1 Of 4
| 3T***86 | Air Conditioner Group | 1 |
8w1925 Cab Gp-Part 2 Of 2
| 8W***25 | Cab Group | 1 |
8w1925 Cab Gp-Part 1 Of 2
| 8W***25 | Cab Group | 1 |
8x0211 Cab Gp-Truck-Part 2 Of 2
| 8X***11 | Cab Group-Truck | 1 |
8x0211 Cab Gp-Truck-Part 1 Of 2
| 8X***11 | Cab Group-Truck | 1 |
7n4297 Compressor Gp-Clutch & Refrig*R
| 7N***97 | Clutch & Refrig Compressor Group | 1 |
2w0216 Compressor Gp-Refrigerant
| 2W***16 | Compressor Group-Refrigerant | 1 |
9y8891 Condenser Gp
| 9Y***91 | Condenser Group | 1 |
8x5298 Control & Mounting Gp
| 8X***98 | Control & Mounting Group | 1 |
5t7241 Control & Mtg Gp-Electronic
| 5T***41 | Control & Mtg Group-Electronic | 1 |
3e3777 Control Gp-Electronic
| 3E***77 | Control Group-Electronic | 1 |
| 3E***78 | Control Group-Electronic | 1 |
| 3E***79 | Film-Identification | 1 |
8w4170 Door Gp-Rh
| 8W***70 | Door Group-Cab; -Rh | 1 |
5t6163 Door Gp-Lh-Part 1 Of 2
| 5T***63 | Door Group-Lh; -Lh | 1 |
5t6163 Door Gp-Lh-Part 2 Of 2
| 5T***63 | Door Group-Lh; -Lh | 1 |
8x2879 Drive Gp-Tachograph
| 8X***79 | Drive Group-Tachograph | 1 |
7w5397 Drive Gp-Tachometer
| 7W***97 | Drive Group-Tachometer | 1 |
6t4301 Harness As
| 6T***01 | Harness As | 1 |
6t4300 Harness As
| 6T***00 | Harness As | 1 |
5t8599 Harness As-Instrument
| 5T***99 | Harness As-Instrument | 1 |
5d6998 Horn Gp-Air
| 5D***98 | Horn Group-Air | 1 |
8x0203 Horn Gp-Air
| 8X***03 | Horn Group-Air; -Chassis | 1 |
5t0857 Horn Gp-Air
| 5T***57 | Horn Group-Air; -Cab | 1 |
8x0205 Lines Gp-Air Conditioner
| 8X***05 | Lines Group-Air Conditioner | 1 |
8x0268 Lines Gp-Heater
| 8X***68 | Lines Group-Heater | 1 |
8x2803 Lines Gp-Washer
| 8X***03 | Lines Group-Window Washer; -Window-Front Window | 1 |
8x0262 Mirror Gp-Rear View
| 8X***62 | Mirror Group-Rear View; -Dual Slope Body | 1 |
5t7225 Monitor & Mounting Gp
| 5T***25 | Monitor & Mounting Group | 1 |
8x2824 Motor Gp-Wiper
| 8X***24 | Motor Group-Windshield Wiper; -Front | 1 |
5t8453 Panel Gp-Instrument
| 5T***53 | Panel Group-Instrument | 1 |
5t8452 Panel Gp-Instrument
| 5T***52 | Panel Group-Instrument | 1 |
8w4735 Seat Gp
| 8W***35 | Seat Group | 1 |
8x4570 Seat Gp-Adjustable
| 8X***70 | Seat Group-Adjustable | 1 |
5t6543 Seat Gp-Companion
| 5T***43 | Seat Group-Companion | 1 |
8w2967 Seat Gp-Companion
| 8W***67 | Seat Group-Companion | 1 |
8x2822 Shaft Gp-Wiper
| 8X***22 | Shaft Group-Wiper; -Window | 1 |
8x2878 Tachograph Ar
| 5T***75 | Tachograph Group | 1 |
| 7N***29 | Connector To Cab Wall | 1 |
| 7W***97 | Drive Group-Tachometer | 1 |
5t9075 Tachograph Gp
| 5T***75 | Tachograph Group | 1 |
8x2792 Tank Gp-Windshield Washer
| 8X***92 | Tank Group-Window Washer | 1 |
3d9943 Valve As-Horn
| 3D***43 | Valve As-Horn | 1 |
5t8174 Valve Gp-Air
| 5T***74 | Valve Group-Air Control; -Window Wiper | 1 |
5t6548 Visor Gp-Cab
| 5T***48 | Visor Group-Cab | 1 |
5t1342 Washer Gp-Windshield
| 5T***42 | Washer Group-Window; -Front Window | 1 |
8w6212 Window Gp
| 8W***12 | Window Group; -Door, Rh | 1 |
8w6211 Window Gp
| 8W***11 | Window Group-Cab; -Door, Rh | 1 |
5t6550 Wiper Gp-Windshield
| 5T***50 | Wiper Group-Window; -Front | 1 |
Service Equipment And Supplies
7x7768 Plate & Film Gp-Part 2 Of 3
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 4 |
| 3E***45 | Film-Caterpillar | 1 |
| 3E***46 | Film-Stripe | 1 |
7x7768 Plate & Film Gp-Part 3 Of 3
| 7X***68 | Plate & Film Group | 1 |
| 9X***56 | Film-Stripe | 2 |
| 9X***57 | Film-Stripe | 1 |
7x7768 Plate & Film Gp-Part 1 Of 3
| 3N***90 | Plate Serial Number; On R.H. Rear Bank Of Cylinder Block As Viewed From Rear Of Engine | 1 |
| 4B***58 | Screw (Identification Plate) Mounting | 8 |
| 6V***48 | Plate-Service Information; (0n Upper Rh Console) | 1 |
Starting System-Hyd./Pneu.
9y0646 Starting Motor Gp-Air-Lh
| 9Y***46 | Starting Motor Group-Air; -Turbine | 1 |
4w6634 Starting Motor Gp-Air-Lh
| 4W***34 | Starting Motor Group-Air; -Vane | 1 |
7c3372 Starting Motor Gp-Air
| 7C***72 | Starting Motor Group-Air; -Vane | 1 |
9y0647 Starting Motor Gp-Air
| 9Y***47 | Starting Motor Group-Air | 1 |
4w6633 Starting Motor Gp-Air
| 4W***33 | Starting Motor Group-Air; -Vane | 1 |
8x0224 Control Gp-Air Starting
| 8X***24 | Control Group-Air Starting; -Chassis | 1 |
8x6531 Control Gp-Air Starting
| 8X***31 | Control Group-Air Starting; -Chassis | 1 |
8x0118 Heater Gp-Lube Oil
| 8X***18 | Heater Group-Engine Oil | 1 |
7e6713 Heater Gp-Jacket Water
| 7E***13 | Heater Group-Jacket Water | 1 |
8x2858 Lines Gp-Air Starting
| 8X***58 | Lines Group-Air Starting; -Rh Platform | 1 |
8x2798 Starting Aid Gp-Ether
| 8X***98 | Starting Aid Group-Ether | 1 |
8x2876 Starting Ar
| 7E***13 | Heater Group-Jacket Water | 1 |
| 8X***18 | Heater Group-Engine Oil | 1 |
| 8X***76 | Starting Ar | 1 |
8x2857 Starting Ar-Air
| 4W***34 | Starting Motor Group-Air; -Vane | 1 |
| 8X***24 | Control Group-Air Starting; -Chassis | 1 |
| 8X***57 | Starting Ar-Air | 1 |
8x2856 Starting Ar-Air
| 8X***56 | Starting Ar-Air | 1 |
| 8X***58 | Lines Group-Air Starting; -Rh Platform | 1 |
| 8X***59 | Wiring Group-Air Starting | 1 |
Steering System
8x3378 Accumulator & Mounting Gp
| 8X***78 | Accumulator & Mounting Group | 1 |
6e5160 Accumulator Gp
| 6E***60 | Accumulator Group | 1 |
5t6942 Cover Gp-Protection
| 5T***42 | Cap Group-Protection; -Transmission Tank Fill Cap | 1 |
8x0259 Cylinder & Mtg Gp-Steering
| 8X***59 | Cylinder & Mtg Group-Steering | 1 |
9t8912 Cylinder Gp-Steering (Chg 00)
| 9T***12 | Cylinder Group-Steering | 1 |
8x2829 Fastener Gp-Steering Arm
| 8X***29 | Fastener Group-Steering Arm; -Outer | 1 |
8x2838 Filter & Lines Gp-Rh
| 8X***38 | Filter & Lines Group; -Steering Oil | 1 |
1u8331 Conversion Gp-Steering Tank
| 1U***31 | Fitting Group-Quick Disconnect | 1 |
8x2835 Lines Gp-Steering
| 8X***35 | Lines Group-Steering; -Cab | 1 |
8x0237 Lines Gp-Steering-Part 1 Of 3
| 8X***37 | Lines Group-Steering; -Chassis | 1 |
8x0237 Lines Gp-Steering-Part 3 Of 3
| 8X***37 | Lines Group-Steering; -Chassis | 1 |
8x0237 Lines Gp-Steering-Part 2 Of 3
| 8X***37 | Lines Group-Steering; -Chassis | 1 |
8x0208 Link Gp-Steering
| 8X***08 | Link Group-Steering | 1 |
2a6946 Link Gp-Steering
| 2A***46 | Link Group-Steering | 1 |
8x2839 Mounting Gp-Hydraulic Tank
| 8X***39 | Mounting Group-Steering Tank | 1 |
8x0260 Pump & Mtg Gp-Steering
| 8X***60 | Pump & Mtg Group-Steering | 1 |
9t1318 Pump Gp-Metering
| 9T***18 | Pump Group-Metering; -Steering | 1 |
6e6627 Pump Gp-Piston
| 6E***27 | Pump Group-Piston; -Steering | 1 |
6e4216 Rotating Gp-Pump
| 6E***16 | Rotating Group-Pump; -Implement, Steering | 1 |
5t6537 Steering Gear Gp
| 5T***37 | Steering Gear Group | 1 |
6e0918 Tank & Filter Gp-Part 1 Of 2
| 6E***18 | Tank & Filter Group | 1 |
6e0918 Tank & Filter Gp-Part 2 Of 2
| 6E***18 | Tank & Filter Group | 1 |
6e4238 Valve Gp-Press & Flow Cmpnstr
| 6E***38 | Valve Group-Press & Flow Cmpnstr; -Steering | 1 |
4t2764 Valve Gp-Relief
| 4T***64 | Valve Group-Relief; (Line, Tilt Cylinder Head End) | 1 |
6t8046 Valve Gp-Solenoid
| 6T***46 | Valve Group-Solenoid; (Axle Oil Cooler) | 1 |
9t8930 Valve Gp-Solenoid & Relief
| 9T***30 | Valve Group-Solenoid & Relief; -Steering | 1 |
9t8931 Valve Gp-Steering
| 9T***31 | Valve Group-Steering; -Control | 1 |
Suspension System
9w3352 Control Gp-Electronic*R
| 9W***52 | Control Group-Electronic | 1 |
8x2808 Mounting Gp-Suspension-Front
| 8X***08 | Mounting Group-Suspension; -Front | 1 |
9t8910 Suspension Gp-Front
| 9T***10 | Suspension Group-Front | 1 |
8x2793 Suspension Gp-Rear
| 8X***93 | Suspension Group-Rear | 1 |
6e1101 Suspension Gp-Rear
| 6E***01 | Suspension Group-Rear | 1 |
Torque Converter
8x0238 Filter & Lines Gp-Torque Conv-Part 2 Of 2
| 8X***38 | Filter & Lines Group-Torque Conv | 1 |
8x0238 Filter & Lines Gp-Torque Conv-Part 1 Of 2
| 8X***38 | Filter & Lines Group-Torque Conv | 1 |
6e5927 Filter Gp-Hydraulic Oil
| 6E***27 | Filter Group-Hydraulic; -Torque Converter-Rear Brake Cooling | 1 |
6y5486 Torque Converter Gp-Part 1 Of 2
| 6Y***86 | Torque Converter Group; -Free Wheel & Lock-Up | 1 |
6y5485 Torque Converter Gp-With Clutch
| 6Y***85 | Torque Converter Group; -W/Housing | 1 |
6y5486 Torque Converter Gp-Part 2 Of 2
| 6Y***86 | Torque Converter Group; -Free Wheel & Lock-Up | 1 |
8e6146 Valve Gp-Lockup Clutch & Sync-Part 2 Of 2
| 8E***46 | Valve Group-Lockup Clutch & Sync; -Torque Converter | 1 |
8e6146 Valve Gp-Lockup Clutch & Sync-Part 1 Of 2
| 8E***46 | Valve Group-Lockup Clutch & Sync; -Torque Converter | 1 |
8e0773 Valve Gp-Relief
| 8E***73 | Valve Group-Relief; -Tc Inlet | 1 |
9w7403 Valve Gp-Converter Relief
| 9W***03 | Valve Group-Relief; -Torque Converter Outlet | 1 |
Transmission
9w4119 Actuator Gp-Rotary
| 9W***19 | Actuator Group-Rotary; -Transmission Control Valve | 1 |
6y5644 Case & Parts Gp-Planetary
| 6Y***44 | Case & Parts Group-Planetary | 1 |
5t6545 Control Gp-Transmission
| 5T***45 | Control Group-Transmission | 1 |
8e3842 Control Gp-Transmission Hyd-Part 1 Of 2
| 8E***42 | Control Group-Transmission Hydraulic | 1 |
8e3842 Control Gp-Transmission Hyd-Part 2 Of 2
| 8E***42 | Control Group-Transmission Hydraulic | 1 |
7t4997 Cover Gp-Shipping
| 7T***97 | Cover Group-Shipping; -Transmission-Transmission Control | 1 |
8e0769 Filter Gp-Transmission
| 8E***69 | Filter Group-Oil; -Parking Brake Release-Xmsn Charging, Lubrication | 1 |
6y5643 Gear Gp-Transfer-Input-Part 2 Of 2
| 6Y***43 | Gear Group-Transfer | 1 |
6y5643 Gear Gp-Transfer-Input-Part 1 Of 2
| 6Y***43 | Gear Group-Transfer | 1 |
8x0239 Lines Gp-Transmission Oil
| 8X***39 | Lines Group-Transmission Oil | 1 |
8x0466 Mounting Gp-Bevel Gear & Tmsn
| 8X***66 | Mounting Group-Bevel Gear & Xmsn | 1 |
5t6639 Neutralizer Gp-Transmission
| 5T***39 | Neutralizer Group-Transmission | 1 |
6y5642 Planetary Gp-Part 2 Of 2
| 6Y***42 | Planetary Group | 1 |
6y5642 Planetary Gp-Part 1 Of 2
| 6Y***42 | Planetary Group | 1 |
7t4554 Screen Gp-Magnetic
| 7T***54 | Screen Group-Magnetic; -Transmission | 1 |
6y5645 Transmission Ar*R
| 3E***72 | Kit-Gasket; (Tsmn Hydraulic Control) | 0 |
| 3E***91 | Kit-Gasket; (Torque Converter) | 0 |
| 3T***29 | Sensor Group-Speed; -Transmission Output | 1 |
8e3841 Valve Gp
| 8E***41 | Valve Group; -Transmission Pressure Control | 1 |
8e0771 Valve Gp-Cooler Bypass
| 8E***71 | Valve Group-Cooler Bypass; -Transmission Oil | 1 |
6t3340 Valve Gp-Lube Relief
| 6T***40 | Valve Group-Lube Relief; -Transmission Hydraulic Control | 1 |
8e3840 Valve Gp-Pressure Control-Part 1 Of 2
| 8E***40 | Valve Group-Pressure Control; -Transmission Oil | 1 |
8e3840 Valve Gp-Pressure Control-Part 2 Of 2
| 8E***40 | Valve Group-Pressure Control; -Transmission Oil | 1 |
9u9716 Valve Gp-Relay
| 9U***16 | Valve Group-Relay; -Lockup Clutch | 1 |
9w9670 Valve Gp-Relay
| 9W***70 | Valve Group-Relay | 1 |
6i9533 Valve Gp-Relay
| 6I***33 | Valve Group-Relay; -Lockup Clutch | 1 |
3t0290 Valve Gp-Selector & Press Cont-Part 2 Of 2
| 3T***90 | Valve Group-Selector & Press Cont; -Transmission Oil | 1 |
3t0290 Valve Gp-Selector & Press Cont-Part 1 Of 2
| 3T***90 | Valve Group-Selector & Press Cont; -Transmission Oil | 1 |
6t9290 Valve Gp-Solenoid
| 6T***90 | Valve Group-Solenoid; (Lockup Clutch & Syncronizing) | 1 |
7x1120 Valve Gp-Solenoid
| 7X***20 | Valve Group-Solenoid; (Synchronization) | 1 |
793 serial number reference
The PIN plate is a riveted metal tag on the truck frame, commonly on the left front frame rail near the cab access area. The first three characters are the prefix (model/production-run code) and the digits after it are the individual unit number. The prefix alone doesn't encode the build year - cross-reference it against the model's serial-break literature or ask a dealer for the year-built lookup. For this early production run, frame and body components are covered under the same machine parts manual as the chassis PIN.
| Prefix | Identifies | Notes |
|---|---|---|
| 3SJ | 793 (original/classic, pre-793B) | Machine PIN prefix for the base 793 off-highway truck, powered by the Cat 3516 engine. Parts documentation for this run was published December 1991, consistent with the model's 1991-92 introduction before Caterpillar moved to the 793B (1HL prefix, 1992-96 production) with an updated 3516 arrangement. The frame and body are covered in the same machine parts manual as the chassis PIN for this early run - no separate body serial tag is documented for it. Aftermarket listings sometimes call this run "793A" to separate it from later letter-suffixed models, though the factory nameplate just reads "793". |
Frequently asked questions
What engine does the original Caterpillar 793 use?
The original 793 (serial prefix 3SJ, built 1991-92) runs a mechanically governed Cat 3516 V16 diesel of roughly 69 L displacement with a 170 mm x 190 mm bore and stroke, using jerk-pump injection and no engine ECM. This is a different fuel system than the electronic 3516 EUI fitted to the 793B that replaced it in 1992, and unrelated to the higher-displacement engine used from 793C onward or the engine in the current-production 793.
What is the operating weight of the original Caterpillar 793?
An operating-weight figure specific to this original 1991-92 nameplate, separate from its 793B successor, is not separately published in available documentation. The 793 line has carried a roughly 218-227 tonne (240-250 ton) nominal payload class since this truck's 1991 launch; confirm exact loaded and empty weight for a specific serial number with your dealer.
What replaced the original Caterpillar 793?
Caterpillar replaced the original 793 with the 793B in 1992, after a short production run of roughly 50 units under the 3SJ serial prefix. The 793B moved to electronic unit injection and added onboard payload-monitoring electronics the original lacked. The line continued through the 793C, 793D, and 793F before Caterpillar later reused the bare '793' name on an unrelated current-production truck.
What 793 owners discuss
What's different about the engine in an original-series 793 compared to later 793 generations?
Serial numbers starting 3SJ (1991-92 build) carry a mechanically governed Cat 3516 V16 with jerk-pump injection, not the electronic 3516B EUI fitted from the 793B onward and nothing like the ACERT or common-rail engines used in later 793C/D/F trucks or the current C175-powered 793. No engine ECM, no fault codes to chase on the fuel system itself. Owners of this mechanically governed 3500-series family value the simplicity and field-rebuild-friendly design. Turbocharger bearing and seal wear is usually the first thing to go at high hours, along with aftercooler cores fouling with dust and cutting boost. Plan a first top-end overhaul somewhere in the 7,500-11,000 hour range depending on rated engine speed, with a second top-end at roughly double that - standard for this engine family regardless of which chassis it's bolted into.
How does the torque-converter powershift drivetrain in the original 793 behave, and what causes shift problems?
Power goes through a torque-converter powershift transmission - a straightforward hydraulic clutch-pack design typical of the era, with none of the electronic transmission control added on later 793 generations. Rough, delayed or slipping shifts, or a converter running hot, almost always trace back to clutch pack wear or low/contaminated transmission oil rather than anything electronic. Watching how each clutch engages over time is the best early warning - one pack behaving noticeably different from the others points to it wearing out first. Stay on the TO-4 type transmission oil change interval and pull a sample every service; cheap insurance on a drivetrain this size.
What brake issues come up on these trucks and what should an operator watch for?
Oil-cooled multiple-disc brakes on each wheel end, the same basic design Cat used across its off-highway truck line in this era. Brake pressure that pulses as the wheel turns points to warped discs, usually from sustained hard braking on long grades cooking the pack past its design temperature. Low or leaking brake cooling oil is the other common cause of overheating - check the tank level and look for oil weeping from caliper pistons, hoses and fittings. A slack adjuster reading residual pressure too high or too low both mean the same part needs replacing. Given the runaway risk on grade with a loaded mining truck, have your dealer verify brake cooling oil condition, disc wear and residual pressures before the truck goes back to work.
What about the suspension struts - what fails and how is it checked?
Front and rear suspension runs on nitrogen-over-oil struts rather than springs, the same design logic Cat used across its large truck line. A strut that sags or rides harsh has usually lost nitrogen charge, not oil - these leak slowly and don't puddle, so a soap-and-water check around the seals is the practical way to catch it before the strut runs dry and starts passing shock straight into the frame. These cylinders hold a high stored charge, so have your dealer verify charge pressure and handle any purge-and-recharge work rather than opening a strut in the field.
What electrical or instrumentation problems show up on a machine this old?
The original 793 predates the fuller electronic monitoring package that later trucks in this size class picked up - these run a simpler analog gauge cluster and warning-lamp system. On a truck pushing 30-plus years old, the electrical complaints are what you'd expect from age: corroded or loose grounds, harness chafing at hinge points and cab entry grommets, and gauge sending units drifting or failing before the component they're reading actually fails. Chase a false gauge or warning-lamp complaint at the sender and ground connections first before condemning the underlying part.
What wears in the differential and final drives, and how is it tracked?
Differential and planetary final drives take TO-4 type gear oil, and standard practice across this era's Cat truck line is scheduled sampling rather than waiting for symptoms - metal shows up in a sample long before it shows up as noise or heat in the cab. On a machine this age, ask for the oil-sample trend history rather than one snapshot result; a single clean sample tells you little about a component that has likely seen multiple rebuild cycles.
What should a buyer check before purchasing a used original 793?
Cat built a small run of the original 793 in 1991-92 before the 793B took over, so surviving examples are scarce and most are past 30 years old with at least one major rebuild behind them. Confirm the machine actually carries a 3SJ-prefix serial number before paying 793 money for it - listings easily blur this original truck with the far more common 793B/C/D that share the same base number. Verify the engine still in the chassis is the original mechanically governed 3516 and not a later electronic 3516B swapped in during a rebuild; check the injection and governor hardware against the data plate, don't take the plate alone as proof. Pull oil-sample trend history on the engine, transmission, differential and final drives instead of trusting the hour meter by itself, inspect the frame and dump-body pivot areas for cracking or repair welds common on a high-hour mining truck, and check suspension strut charge and brake condition before moving it. Parts support for this original-series 793 is thinner than for the later, higher-volume generations - confirm availability with your dealer before committing to the purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Caterpillar 793. Related factory variants of the same model family:
793
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