Machine models
Cat 793 specifications
| Listing-entry count |
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| 1 |
Short answer
Cat 793: rigid rock truck.
| Configuration | Documented field and quantity |
|---|---|
| 793 |
|
| Specification | 793 |
|---|---|
| Nominal Rated Payload | 265 ton (US) |
| Rated Gross Machine Weight | 890,668 lb |
| Chassis Weight | 291,026 lb |
| Body Weight | 70,707 lb |
| Specification | 793 |
|---|---|
| Gross Power - SAE J1995:2014 | 2,650 hp |
| Engine Model | Cat® C175-16 |
| Net Power - SAE J1349:2011 | 2,529 hp |
| Rated Speed | 1750 r/min |
| Emissions Rating | Fuel Optimized |
| Bore | 7 in |
| Stroke | 9 in |
| Displacement | 5,187 in³ |
| Specification | 793 |
|---|---|
| Front Axle - Empty | 51% |
| Rear Axle - Empty | 49% |
| Front Axle - Loaded | 33% |
| Rear Axle - Loaded | 67% |
| Specification | 793 |
|---|---|
| Differential Ratio | 1.8:1 |
| Planetary Ratio | 1 |
| Total Reduction Ratio | 29 |
| Specification | 793 |
|---|---|
| Forward - 1 | 8 mph |
| Forward - 2 | 10 mph |
| Forward - 3 | 14 mph |
| Forward - 4 | 19 mph |
| Forward - 5 | 26 mph |
| Forward - 6 | 37 mph |
| Reverse | 7 mph |
| Top Speed - Loaded | 37 mph |
| Specification | 793 |
|---|---|
| Standard Tires | 737 mm (29 in) |
| Optional Tires | 813 mm (32 in) |
| Tires | 40.00 R57 46/90 R57 50/80 R57 |
| Specification | 793 |
|---|---|
| Service Brakes | Four-Corner Wet Disc Oil Cooled Hydraulically Actuated |
| Front Wet Disc Brake Surface Area | 13,907 in² / 89727 cm² |
| Rear - Wet Disc Brake Surface Area | 20,861 in² / 134590 cm² |
| Standards | (Service and Secondary) ISO 3450:2011 |
| Parking Brake | Four-corner Multi-disc Spring applied Hydraulically Released |
| Specification | 793 |
|---|---|
| Struck | 112.6-151 m3 (147-197.5 yd3) |
| Heaped (SAE 2:1)* | 162-190 m3 (212-249 yd3) |
| Specification | 793 |
|---|---|
| Type | Twin two-stage hydraulic cylinders with snubbing valve |
| Pump Flow - High Idle | 216 gpm |
| Relief Valve Setting - Raise | 2,955 psi |
| Body Raise Time - High Idle | 22 s |
| Body Lower Time - Float | 23 s |
| Body Power Down - High Idle | 21 s |
| Specification | 793 |
|---|---|
| Type | Self-contained nitrogen/oil cylinders pin-to-pin mounting top and bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front | 12 in |
| Effective Cylinder Stroke - Rear | 7 in |
| Rear axle - Oscillation | 4.9 degrees |
| Specification | 793 |
|---|---|
| Fuel Tank - Optional | 1,300 gal (US) |
| Fuel Tank | 750 gal (US) |
| Diesel Exhaust Fluid Tank | 62 gal (US) |
| Cooling System | 284 gal (US) |
| Crankcase | 82 gal (US) |
| Front Wheels - Each | 8 gal (US) |
| Differential - Final Drives | 260 gal (US) |
| Steering System - Includes Tank | 77 gal (US) |
| Brake Hoist System - Includes Tank | 347 gal (US) |
| Torque Converter/Transmission System - Including Sump | 55 gal (US) |
| Torque Converter Sump | 27 gal (US) |
| Specification | 793 |
|---|---|
| Air Conditioning | (HFC - 134A refrigerant) 9.3 kW 31733 BTU/hr |
| Heater / Defroster | 36510 Btu/h |
| ROPS Standards (2) | ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer |
| FOPS Standards | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer |
| Specification | 793 |
|---|---|
| Sound Standards (1) | The operator sound pressure level 74 dB(A) complies with ISO 6394 and ISO 6396 |
| Specification | 793 |
|---|---|
| Steer Angle | 36 ° |
| Turning Diameter - Front | 93 ft |
| Steering Standards | ISO 5010:2019 |
| Figure | 793 |
|---|---|
| Fuel tank per engine horsepower | 0.28 gal |
| Equipment group | rigid rock truck |
|---|
| Base version | 793D | 793 | 797 |
|---|---|---|---|
| Engine power | 2,337 hp | 2,650 hp | 3,211 hp |
| Weight | 793D: 351,258 lb; 797: 510,000 lb | ||
| Fuel capacity | 1,150 gal | 750 gal (US) | 1,800 gal |
| Wheelbase | 793D: 19.43 ft; 797: 23.63 ft | ||
| Rated payload | 793D: 480,000 lb; 797: 760,000 lb | ||
History and service record of 793
- Three decades in production. Caterpillar launched the 793 mining truck line more than three decades ago (Caterpillar dates the lineage to 1991), and every generation since has kept the same reputation for speed on grade and class-leading payload that made it one of the most popular trucks in mining. Caterpillar, 793D Mining Trucks product page.
- First generation, still working. The original 793, launched in the early 1990s, established the layout every later 793 generation (793B, 793C, 793D, 793F) has kept: a mechanical-drive haul truck sized for the 240-ton payload class. Caterpillar, 793D Mining Trucks product page.
| Forum index | Equipment class queried | Names in the search | Matching titles |
|---|---|---|---|
| Heavy Equipment Forums | rigid rock truck | Cat and the 793. That is too few titles to say what owners mostly ask about, so the most recent are listed instead | 5 |
- CAT 793f Haul Truck Engine Main Big End Bearing Issues (Heavy Equipment Forums, 2014-01-16)
- Few Quiz Questions On 793 CAT Dumpies (Heavy Equipment Forums, 2010-11-08)
- CAT Upgrades 793 Trucks Video On The 795 797 And A Remote Controlled D10 (Heavy Equipment Forums, 2009-11-14)
- CAT 793c Mining Trucks Up Close And Personal Video (Heavy Equipment Forums, 2009-03-24)
| Observation date | Listing source | Equipment search | Listings |
|---|---|---|---|
| 2026-09-25 | MachineryTrader | Cat rigid rock truck | 5 |
| Model | Listed | Model years | Lowest asking | Highest asking | Median asking | Median hours |
|---|---|---|---|---|---|---|
| 793 | 5 | 2005 to 2027 | None shown | None shown | None shown | 965 |
| Search date | Database | Names queried | Search result |
|---|---|---|---|
| 2026-09-24 | U.S. Consumer Product Safety Commission | Cat together with the rigid rock truck 793 | No matching recall in this search |
| Evidence class | Document, classification and recorded date |
|---|---|
| Manufacturer |
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| Forum threads |
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| Published history |
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| Used-market listings |
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| Federal agency data |
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Cat 793 questions
| Date | Listing index | Equipment class | Names queried | Listings | Price observation |
|---|---|---|---|---|---|
| 2026-09-25 | MachineryTrader | rigid rock truck | 793 | 5 | No prices shown in this snapshot |
| Observation field | Recorded value |
|---|---|
| Title count | 5 |
| Forum indexes | Heavy Equipment Forums |
| Search wording | the 793 rigid rock truck |
| Latest title quoted by the reference | CAT 793f Haul Truck Engine Main Big End Bearing Issues |
Cat 793: Configuration records
793
| Specification | Source figure |
|---|---|
| Weights Approximate | |
| Nominal Rated Payload | 265 ton (US) |
| Rated Gross Machine Weight | 890,668 lb |
| Chassis Weight | 291,026 lb |
| Body Weight | 70,707 lb |
| Engine | |
| Gross Power - SAE J1995:2014 | 2,650 hp |
| Engine Model | Cat® C175-16 |
| Net Power - SAE J1349:2011 | 2,529 hp |
| Rated Speed | 1750 r/min |
| Emissions Rating | Fuel Optimized |
| Bore | 7 in |
| Stroke | 9 in |
| Displacement | 5,187 in³ |
| Weight Distributions Approximate | |
| Front Axle - Empty | 51% |
| Rear Axle - Empty | 49% |
| Front Axle - Loaded | 33% |
| Rear Axle - Loaded | 67% |
| Final Drives | |
| Differential Ratio | 1.8:1 |
| Planetary Ratio | 1 |
| Total Reduction Ratio | 29 |
| Transmission and speeds | |
| Forward - 1 | 8 mph |
| Forward - 2 | 10 mph |
| Forward - 3 | 14 mph |
| Forward - 4 | 19 mph |
| Forward - 5 | 26 mph |
| Forward - 6 | 37 mph |
| Reverse | 7 mph |
| Top Speed - Loaded | 37 mph |
| Tires | |
| Standard Tires | 737 mm (29 in) |
| Optional Tires | 813 mm (32 in) |
| Braking System | |
| Service Brakes | Four-Corner Wet Disc Oil Cooled Hydraulically Actuated |
| Front Wet Disc Brake Surface Area | 13,907 in² / 89727 cm² |
| Rear - Wet Disc Brake Surface Area | 20,861 in² / 134590 cm² |
| Standards | (Service and Secondary) ISO 3450:2011 |
| Parking Brake | Four-corner Multi-disc Spring applied Hydraulically Released |
| Capacity HP Body 100% Fill Factor | |
| Struck | 112.6-151 m3 (147-197.5 yd3) |
| Heaped (SAE 2:1)* | 162-190 m3 (212-249 yd3) |
| Body Hoists | |
| Pump Flow - High Idle | 216 gpm |
| Relief Valve Setting - Raise | 2,955 psi |
| Body Raise Time - High Idle | 22 s |
| Body Lower Time - Float | 23 s |
| Body Power Down - High Idle | 21 s |
| Suspension | |
| Effective Cylinder Stroke - Front | 12 in |
| Effective Cylinder Stroke - Rear | 7 in |
| Rear axle - Oscillation | 4.9 degrees |
| Service Refill Capacities | |
| Fuel Tank - Optional | 1,300 gal (US) |
| Fuel Tank | 750 gal (US) |
| Diesel Exhaust Fluid Tank | 62 gal (US) |
| Cooling System | 284 gal (US) |
| Crankcase | 82 gal (US) |
| Front Wheels - Each | 8 gal (US) |
| Differential - Final Drives | 260 gal (US) |
| Steering System - Includes Tank | 77 gal (US) |
| Brake Hoist System - Includes Tank | 347 gal (US) |
| Torque Converter/Transmission System - Including Sump | 55 gal (US) |
| Torque Converter Sump | 27 gal (US) |
| Cab | |
| Air Conditioning | (HFC - 134A refrigerant) 9.3 kW 31733 BTU/hr |
| Heater / Defroster | 36510 Btu/h |
| ROPS Standards (2) | ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer |
| FOPS Standards | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer |
| Sound | |
| Sound Standards (1) | The operator sound pressure level 74 dB(A) complies with ISO 6394 and ISO 6396 |
| Steering | |
| Steer Angle | 36 ° |
| Turning Diameter - Front | 93 ft |
| Steering Standards | ISO 5010:2019 |
| Additional specifications | |
| Tires | 40.00 R57 46/90 R57 50/80 R57 |
| Type | Twin two-stage hydraulic cylinders with snubbing valve |
More in Cat: 797: engine modules/supports/original specs, 773/775/775 Bare Chassis specs, 797B: shift controls/oil renewal/altitude equipment.