Covers mechanical-drive 785, 789, 793 and 797F trucks and AC-drive 794 AC, 796 AC and 798 AC trucks. Identify parts through body wear protection, frames, suspension hydraulics, wheel ends and drive systems.
785, 789, 793 and 797F use mechanical transmissions, differentials and final drives. 794 AC, 796 AC and 798 AC use alternators, inverter controls and wheel traction motors. Body, frame, suspension, wheel-end and brake configurations also vary by model, serial number, region and project options. Rated payload alone does not establish interchangeability.
The 7 models, payloads, gross power and rated gross weights below come from Caterpillar's current truck catalogue and individual model pages for initial identification.
| Standard Models | Drive type | Rated payload | Gross power | Rated gross weight |
|---|---|---|---|---|
| 785 | Mechanical drive | 147 t | 1,193 kW | 255,826 kg |
| 789 | Mechanical drive | 193 t | 1,566 kW | 324,318 kg |
| 793 | Mechanical drive | 240 t | 1,976 kW | 404,000 kg |
| 794 AC | AC drive | 297 t | 2,610 kW | 521,631 kg |
| 796 AC | AC drive | 327 t | 2,610 kW | 576,072 kg |
| 797F | Mechanical drive | 363 t | 2,983 kW | 623,690 kg |
| 798 AC | AC drive | 372 t | 2,610 kW | 623,690 kg |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Truck body | Load-carrying body above the chassis | 793 (current webpage main-image configuration) |
| 2 | Operator cab | Operator station at the upper front of the truck | 793 (current webpage main-image configuration) |
| 3 | Tyres | Large tyres below the chassis | 793 (current webpage main-image configuration) |
| 4 | Access ladder and handrails | Access system at the front of the truck | 793 (current webpage main-image configuration) |
Official Cat images identify models and installation areas.Material options require confirmation against body drawings, ore conditions, wear maps and failure modes.
Dump Body Floor Liners
Fit loading-impact zones and principal sliding paths during dumping, resisting large-rock impact, compression and abrasion. The image identifies a category, not Cat OEM interchangeability. Check complete model, body type, segment drawing, thickness, holes and connections.
View body floor liners →
Body Front Wall Liners
Protect the front wall and floor transition from initial loading impact, accumulated-material pressure and repeated sliding. Check wall angle, stiffeners, liner limits, overlap direction and bolted or welded structure.
View front-wall liners →
Body Side & Corner Liners
Cover lower sidewalls, floor corners and local sliding-wear paths. The image identifies a category. Left/right positions, plate numbers, edge clearances, overlap and welding limits must match actual body drawings.
View body side liners →Rear Discharge Wear Liners
Tail edges, rear floor sections and discharge edges face concentrated sliding wear and edge impact during tipping. Check structure, wear-band width, segments, weld orientation and interference through hoisting motion.
View tail-edge discharge liners →Rock Box Liners & Body Protection
Some applications use rock-box liners, canopy rock guards or local replaceable protection. Presence and scope vary with body design. Confirm project body drawings, material density and loading equipment.
View body and underbody protection →
Mud Guards, Rock Deflectors & Ejectors
Fit around tyres, frames and platforms to block mud, flying rock and debris and protect pipes, suspension and adjacent tyres. The image identifies a category. Check left/right position, tyre specification, brackets and movement envelope.
View mudguards and rock protection →Group parts by load-bearing structure, drive type and assembly. Do not mix mechanical and AC drive systems. Safety- and fatigue-critical parts require traceable materials, heat treatment, dimensions, non-destructive testing and installed identification.
Frame, Cast Nodes & Body Pivots
Frame rails, crossmembers, cast-steel nodes, body hinge brackets and lugs withstand cyclic bending and torsion. Repair or replacement requires complete model, serial number, base material, welding limits, pin-bore coaxiality and inspection requirements.
View large structures and heavy-duty assemblies →Mechanical Transmission & Final Drives
785, 789, 793 and 797F use mechanical drives with transmissions, shafts, differentials, final drives, gear shafts and housings. Confirm model, serial number, assembly number, tooth count, module, splines and ratio.
View gears, pinions and drive parts →AC Alternator, Inverter & Wheel Motors
Diesels in 794 AC, 796 AC and 798 AC drive alternators that feed rear-wheel traction motors through inverter controls. Check model, system version, alternator and motor nameplates, cooling, interfaces and reduction ratio.
View electric and heavy-duty drive assemblies →Suspension, Steering & Hoist Hydraulics
Suspension, steering and hoist systems include barrels, rods, guides, seals, valves and piping. Provide position, bore, rod diameter, stroke, interfaces, pressure and leakage or scoring records.
View hydraulic seals and engineering materials →Brakes, Hubs, Bearings & Seals
Oil-cooled wet multiple-disc brakes, hubs, bearings, seals and rim interfaces are safety-critical assemblies. Distinguish mechanical and AC drive, front/rear position, brake type, tyre/rim specification and complete installed version.
View bearings, bushings and supports →Body Hoist Pivots, Pins & Bushings
Rear body hinges and hoist-cylinder pivots carry heavy oscillating loads and impact through pins, bushings, thrust parts, seals and lugs. Check diameter, length, lubrication holes, locks, bore dimensions and wear.
View pins, bearings and bushings →No. 785, 789, 793 and 797F use mechanical transmissions, differentials and final drives. 794 AC, 796 AC and 798 AC use alternators, inverter controls and wheel traction motors. Confirm complete model, serial number, drive type and assembly first.
No. Provide serial number, body type, liner configuration and segment drawings, position, thickness, holes or welding limits, used-part photos, current material, rock size and abrasive conditions.
Start with machine nameplate, complete model and serial number, position, assembly nameplate, photos, key dimensions and material tests. Assess whether catalogues, drawing searches or a physical survey can provide technical confirmation.
Provide complete model and serial number, mechanical or AC drive, assembly, drawings or samples, body segment drawings, photos, key dimensions, current material and ore conditions. ANRANST supports drawing and engineering review, production at certified foundries, in-factory inspection and finished-part delivery.
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We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Material grades and heat-treatment processes are specified order by order, stated in the technical agreement and tracked through production.
Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.
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Provide the existing model, drawings, drawing, materials or operating conditions so we can identify the appropriate technical review and supply route.
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