Engine ModelCat® C175-20
Gross Power - SAE J19954000 HP (2983 kW)
Bore6.9 in (175 mm)
Stroke8.7 in (220 mm)
Whether you're hauling copper, coal, gold, iron ore or overburden the 797F provides you with the best in class cost per unit of production. Including the improvements in safety, productivity, serviceability and comfort you will see why the 797F is the industry leader of its class. Combine these features with unmatched dealer support and you will see why more mine sites choose Cat Mining Trucks for their production needs.


Engine ModelCat® C175-20
Gross Power - SAE J19954000 HP (2983 kW)
Bore6.9 in (175 mm)
Stroke8.7 in (220 mm)
Displacement6469 in³ (106 l)
Note (1)Power ratings apply at 1,750 rpm when tested under the specific conditions for the specified standard.
Note (2)Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 99 kPa (29.32 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (69° F) and an LHV of 42 780 kJ/kg (18,390 Btu/lb) when engine is used at 30° C (38° F).
Body Weight Range41 368-61 235 kg (91,200-135,000 lb)
Chassis Weight Range210 630-219 146 kg (464,359-483,134 lb)
Target Gross Machine Operating Weight (GMW)1375000 lb (623690 kg)
Nominal Payload Capacity400 ton (US) (363 t)
Steer Angle40 ° (40 °)
Heaped SAE (2:1) Capacity240-267 m3 (314-350 yd3)
Machine Clearance Turning Diameter138 ft (42 m)
Top Speed - Loaded42 mile/h (67.6 km/h)
Differential Ratio1.276:1
Planetary Ratio16.67:1
Total Reduction Ratio21.26:1
Forward - 17 mile/h (11.3 km/h)
Forward - 29.5 mile/h (15.2 km/h)
Forward - 312.7 mile/h (20.5 km/h)
Forward - 417.2 mile/h (27.7 km/h)
Forward - 523.1 mile/h (37.2 km/h)
Forward - 631.2 mile/h (50.3 km/h)
Forward - 742 mile/h (67.6 km/h)
Reverse7.4 mile/h (11.9 km/h)
Rear axle - Oscillation±4.0 degrees
Effective Cylinder Stroke - Front12.3 in (313.6 mm)
Effective Cylinder Stroke - Rear6.5 in (165.1 mm)
Body Raise Time - High Idle25 s (25 s)
High Idle Body Lower Time - Float19 s (19 s)
Pump Flow - High Idle317 gal/min (1200 l/min)
Relief Valve Setting - Raise3510 psi (24200 kPa)
Outside Diameter42 in (1067 mm)
StandardsISO 3450:2011
Brake Surface51243 in² (330517 cm²)
Number of Discs per Side - Front10
Number of Discs per Side - Rear15
Front Axle - Empty47.2%
Front Axle - Loaded33.3%
Rear Axle - Empty52.8%
Rear Axle - Loaded66.7%
Front Axle - Empty47.2%
Front Axle - Loaded33.3%
Rear Axle - Empty52.8%
Rear Axle - Loaded66.7%
Heaped (SAE 2:1)240-267 m3 (314-350 yd3)
Struck188-213 m3 (246-290 yd3)
Cooling System306 gal (US) (1160 l)
Crankcase84 gal (US) (319 l)
Steering Tank67 gal (US) (254 l)
Steering System - Including Tank94 gal (US) (355 l)
Brake Hoist System - Includes Tank441 gal (US) (1600 l)
Brake/Hoist Hydraulic Lines219 gal (US) (830 l)
Brake/Hoist Tank203 gal (US) (770 l)
Differentials311 gal (US) (1176 l)
Final Drive - Each49 gal (US) (185 l)
Front Wheels - Each16 gal (US) (61 l)
Fuel Tank1000 gal (US) (3785 l)
Torque Converter Sump80 gal (US) (303 l)
Torque Converter/Transmission System - Including Sump166 gal (US) (629 l)
Tires59/80R63 – Michelin or Bridgestone
Engine Guard Clearance - Loaded3.33 ft (1025 mm)
Front Canopy Height - Empty25.33 ft (7709 mm)
Height - Top of ROPS - Empty21.4 ft (6526 mm)
Inside Body Depth - Maximum11 ft (3363 mm)
Loaded Ground Clearance2.58 ft (786 mm)
Loading Height - Empty23 ft (6998 mm)
Overall Height - Body Raised51.5 ft (15701 mm)
Rear Axle - Clearance - Loaded3.08 ft (947 mm)
Overall Body Length48.6 ft (14802 mm)
Inside Body Length32.75 ft (9976 mm)
Overall Length49.5 ft (15080 mm)
Wheel Base23.58 ft (7195 mm)
Rear Axle - Tail12.9 ft (3944 mm)
Dump Clearance6.58 ft (2017 mm)
Centerline Front Tire Width21.41 ft (6534 mm)
Overall Canopy Width29.91 ft (9116 mm)
Outside Body Width32 ft (9755 mm)
Inside Body Width27.91 ft (8513 mm)
Centerline of Rear Dual Tire Width20.41 ft (6233 mm)
Overall Tire Width31.25 ft (9529 mm)
ROPS StandardsROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
Sound Standards (1)The operator sound pressure level measured according to work cycle procedures specified in ISO 6394:2008 and 6396:2008 is 76 dB(A) for cab offered by Caterpillar when properly installed and maintained and tested with doors and windows closed.
Steering StandardsISO 5010:2007
NoteConsult your local Cat dealer for truck body recommendations.
EmissionsU.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.
Note (3)No low altitude arrangement (LAA) engine derating required up to 2134 m (7,000 ft) altitude.
Note (4)No high altitude arrangement (HAA) engine derating required up to 4877 m (16,000 ft) altitude.
NoteDouble reduction, planetary with full floating axles.
FOPS StandardsFOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
Sound Standards (2)Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
NoteProductive capabilities of the 797F are such that, under certain job conditions, TKPH (TMPH) capabilities of standard tires could be exceeded and, therefore, limit production.
Note (1)Refer to the Cat Mining Truck 10/10/20 Payload Policy for maximum gross machine weight limitations.
Note (2)Body weight varies depending on body and liner configuration. Weight range for known applications.
Note (3)Chassis weight with 100 percent fuel, hoist, body mounting group, rims and tires.