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  • 797F - Mining Trucks
  • 797F - Mining Trucks
  • 797F - Mining Trucks
  • 797F - Mining Trucks
  • 797F - Mining Trucks
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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.

Gross Power
2983 kW
Engine Model
Cat® C175-20
Top Speed
63.6 km/h


Related Materials
File Format Size
797F Brochure pdf 2.88 MiB


The Cat C175-20 engine provides power, reliability and efficiency for your most demanding mining applications.


The Cat® C175-20 quad turbocharged and air-to-air aftercooled diesel engine has enhanced power management capability for maximum hauling performance in your most demanding mining applications.


The C175-20 is a 20 cylinder, single block, four stroke design that uses long, effective power strokes for optimum efficiency.

Emission Standards

Where applicable, the Cat C175-20 engine is compliant with current U.S. EPA emission standards.

Long Life

High displacement, low rpm rating and conservative power ratings mean more time on the haul roads and less time in the shop.

Cat Common Rail Fuel System

The electronically-controlled system senses operating conditions and regulates fuel delivery for optimum fuel efficiency. This precise and flexible fuel system gives the engine the ability to meet emission regulations without sacrificing performance, reliability or durability.

Cooling System

The flexible core design of the MESABI radiator means easier serviceability along with long life and high durability. The MESABI radiator comes standard on the 797F.


The tank on the air start system is ground level for easy serviceability.

More power to the ground means greater productivity for you.

Mechanical Power Train

The Cat mechanical drive power train and powershift transmission provides you unmatched operating efficiency and control on steep grades, in poor underfoot conditions and on haul roads with high rolling resistance.

1 – Transmission

The Cat seven speed, planetary power shift transmission is matched with the C175-20 engine to deliver you constant power over a wide range of operating speeds.Robust Design – Designed for the higher power of the C175-20 engine, the proven planetary power shift transmission is built tough.Long Life – A dedicated oil tank and circuit provides cooler, cleaner oil for maximum performance and longer component life.

Electronic Clutch Pressure Control

ECPC provides maximum performance, smooth shifting, long clutch life and a more comfortable ride.

2 – Lock-Up Torque Converter

Combines maximum rimpull and cushioned shifting of torque converter drive with the efficiency and performance of direct drive. The lock-up torque converter engages at approximately 8 km/h (5 mph), delivering more power to the wheels.

3 – Final Drives

Cat final drives work as a system with the planetary power shift transmission to deliver maximum power to the ground. Built to withstand the forces of high torque and impact loads, double reduction final drives provide high torque multiplication to further reduce drive train stress.

Electronically combined power train components optimize performance.

Cat Data Link

Reduces your operating costs by electronically integrating the 797’s machine computer systems. This optimizes overall power train performance while increasing reliability and component life.

Body-Up Shift Inhibitor

Prevents the transmission from shifting above the pre-programmed gear without the body fully lowered. The machine can move forward but the speed is limited to avoid excessive racking when pulling away from a dump site.

Overspeed Protection

The transmission control electronically senses engine conditions and automatically up-shifts one gear to prevent engine overspeeding.

Programmable Top Gear

Transmission top gear maximum can be set using the Cat Electronic Technician service tool to help the operator maintain speed limits.

Downshift Inhibitor

Prevents engine overspeeding by keeping the transmission from downshifting until engine speed reaches the downshift point.

Controlled Throttle Shifting

Regulates engine rpm during shifting to reduce power train stress and clutch wear by controlling engine speed, torque converter lock-up and transmission clutch engagement for smoother shifts and longer component life.

Reverse Speed Inhibitor

Prevents shifts into reverse when forward ground speeds are in excess of 4.8 km/h (3 mph).

Superior braking control lets your operators focus on productivity.

Integrated Braking System

The Cat, oil-cooled braking system delivers you reliable performance and control in extreme haul road conditions. The integrated system combines the service, secondary, parking brakes and retarding functions in the same system for optimum braking efficiency that does not burn fuel while retarding.

Oil-Cooled Multiple Disc Brakes

Cat four wheel, forced oil-cooled, multiple disc brakes are continuously cooled by water-to-oil heat exchanger for exceptional, non-fading braking and retarding performance.

Brake Design

Cat, oil-cooled disc brakes are designed with large discs and plates for reliable, adjustment-free operation and performance. Brakes are completely enclosed and sealed to prevent contamination and reduce maintenance.

Long Life

An oil film prevents direct contact between the discs. This design absorbs the braking forces by shearing the oil molecules and carrying heat away to extend brake life.

Parking Brake

Oil-cooled, spring-applied, hydraulically released parking brake is applied to all four wheels for superior parking capability on all grades up to 15 percent.

Hydraulic Automatic Retarder Control (ARC)

Hydraulically activated, automatic retarder control system electronically controls retarding on grade to maintain optimum engine rpm and brake system performance. ARC is now adjustable in each gear.

Designed and built for rugged performance and reliability.

Cat Truck Bodies

You have a choice of four MSD II (Mine Specific Design) bodies in conjunction with a configurable liner system to achieve the most efficient hauling solutions at the lowest-cost-per-unit-of-production.

Body Selection

The Cat truck body program is committed to providing you the most efficient and highest value body solution for your operation. By studying your mine site and understanding the overall operational requirements and constraints, the body can be configured to meet the unique needs of your application.


The MSD II bodies are the number one choice in the mining industry. The internal body shells are designed and manufactured for superior impact and wear protection. Coupled with the Caterpillar mine specific design process the MSD II bodies optimize the balance of payload and durability.

Truck Body Liners

A variety of liner options are available to save weight and extend body life through impact and wear management. The mine specific design system is utilized to provide you with the optimum liner for long life at your mine site.

Superior Cat structures in the 797F give you durability and long life.

Box Section Design

The 797F frame uses a box-section design, incorporating two forgings and 14 castings in high stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight.Steel Structures – Mild steel used throughout frame provides flexibility, durability and resistance to impact loads, even in cold climates and allows for easy field repairs.Castings – Castings account for 80 percent of the frame’s weight and are key to providing durability in some of the world’s toughest conditions. The large radii castings are resilient to frame flexing and ensure long life.

Integral Four-Post Cab

Resiliently mounted to the frame to reduce vibration and sound, the integral ROPS is designed as an extension of the truck frame.

Suspension System

Designed to dissipate haul road and loading impacts for longer frame life and a more comfortable ride.Durable Design – Rugged cylinders utilize large diameter bore and low pressure nitrogen/oil design for long life with minimal maintenance.Front – Front cylinders with preset caster and camber are mounted on the frame and serve as steering kingpins for a tight turning radius with excellent maneuverability and low maintenance.Rear – Rear cylinders allow oscillation and absorb bending and twisting stresses caused by uneven and rough haul roads rather than transmitting them to the main frame.

Four-Bar Link Rear Suspension

The four-bar link suspension transfers and supports loads to the frame more efficiently than an A-frame design and allows more service area around the transmission.

Steering System

Hydraulic steering control system is designed for exceptional smoothness and precise control. A separate circuit prevents cross contamination for long life.

Ergonomically designed for all-day comfort, control and productivity.

Operator Environment

You now have the choice to select a cab with the features you desire. There are three choices based on popular arrangements. Available offerings include a Standard Cab, Deluxe Cab or Deluxe Cold Weather Cab.

Ergonomic Layout

To minimize operator fatigue and maximize productivity the all new F Series operator station is ergonomically designed for total machine control in a comfortable, productive and safe environment. Controls, levers, switches and gauges are positioned for ease of use.

Viewing Area

Designed for excellent all-around visibility and clear sight lines to the haul road, the large viewing area offers exceptional visibility, allowing the operator to maneuver with confidence for high productivity. The air cleaners have been relocated to the front of the truck, allowing the operator increased visibility.

Cab Features

Air Suspension Seat with Three-Point Operator RestraintHoist LeverSecondary Brake PedalMonitoring SystemSteering ColumnTransmission ControlsGaugesStorage CompartmentAir Suspension Trainer SeatOperator WindowOperator ControlsHeating/Air ConditioningFour-Post ROPSCamera System Monitor (optional)MineStar Monitor (optional)Cup HolderDome Courtesy Lights

Keeping your production at peak levels.

VIMS™ 3G Monitoring System

Provides operator critical health and payload information in real-time to keep the 797F performing at optimum levels. VIMS is able to monitor information from all vehicle systems. Ten different machine parameters can be viewed at once. Data can be downloaded easily by service technicians for troubleshooting, planning and lowering costs.

Production and Payload Management

Information is available to manage payloads to improve fleet effectiveness and loading tool match and to prevent overloading to help extend component life and lower operating and maintenance costs.

External Payload Indicators

Standard external lights or optional digital display to help loading tool operator reach payload target and minimize overloading.

Road Analysis Control

Optional system measures frame rack, bias and pitch to help identify haul road problems so they can be repaired. This leads to improved cycle time, component lives and fuel efficiency.


An Off-board software reporting program that allows your service personnel to download a complete record of machine health and productivity data. Health and payload reports can be generated for more effective machine management, which reduces downtime and lowers operating costs.

Advisor Display

The Advisor display provides real-time performance, maintenance and diagnostic data to the operator or service technician. A large number of machine parameters can be viewed including temperature, pressure, speed, and payload.

Features to help protect you, day in and day out.

Product Safety

Caterpillar is constantly improving our product to provide the safest work environment for the operator and those who work on your mine site. Safety is an integral part of all machine and system designs.

Access and Egress

Improvements for machine level access and egress include a standard 600 mm (24 in) diagonal stairway across the front of the machine. Improvements for ground level access include an optional powered access stairway.

Cat Detect System

Knowing what’s around your 797F at all times is important. The Cat Detect system is factory installed as standard equipment on 797F Mining Trucks. The full Cat Detect system, RADAR AND CAMERA, provides both audible and visual indications of detected objects. This system uses a combination of short and medium range radars which surround the machine, along with cameras on each side to allow the operator to confirm the detected object. The cameras supplement the radar alerts and are selectable by touch screen menus through an intuitive interface.

Overload Policy

Safety is integral to maintaining the highest productivity in your mining operations. The Caterpillar 10/10/20 Overload Policy assures that steering and braking systems have sufficient capacity to perform, even at 20 percent overload.

Other Safety Features

Slip resistant surfaces 76 mm (3 in) wide orange, three-point operator restraint Wide angle mirrors Body raised indicator Body retaining cables Guard rails Reverse neutralizer when dumping Low interior sound level

Isolation Box

Lockout, tagout box mounted on front bumper includes engine shutdown switch, battery lockout, starter lockout and transmission lockout.


Generations ahead in every way.

Sustainability Features

The 797F Mining Truck offers continuous rear axle filtration, extended life filters and extended maintenance intervals, which aid in decreasing the amount of waste contributed to our environment.

Advanced Surface Technology (AST)

Advanced Surface Technology (AST) is a replacement for hard chrome coatings on some steel parts, including suspension and hoist cylinder rods. This technology improves wear resistance and reduces repair time. Chrome has been eliminated to reduce environmental impact.

Fuel Efficiency

The engine provides additional retarding by running against compression on downhill hauls. During retarding applications the engine ECM does not inject fuel into the cylinders for exceptional fuel economy.

Engine Cat C175-20 menawarkan daya, keandalan, dan efisiensi untuk aplikasi pertambangan Anda yang paling berat.


Engine diesel Cat® C175-20 quad turbocharger dengan aftercooler udara ke udara telah mengalami peningkatan kemampuan manajemen daya untuk kinerja pengangkutan maksimum dalam aplikasi pertambangan Anda yang paling berat.


Standard Equipment
Gross Power - SAE J1995 2983 kW
Engine Model Cat® C175-20
Net Power - SAE J1349 2828 kW
Rated Speed 1750 r/min
Emissions U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.Tier 4 engine option available to meet Tier 4 Final emission standards.
Bore 175 mm
Stroke 220 mm
Displacement 106 l
Note (1) Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.
Note (2) U.S. EPA Tier 4 Final available for applicable markets.
Note (3) High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available.
Standard Equipment
Nominal Rated Payload 364 t
Rated Gross Machine Weight 623690 kg
Chassis Weight 215217 kg
Body Weight 43000 kg
Note (1) Consult your tire manufacturer for maximum tire load
Note (2) Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.
Note (4) Tier 4 Chassis Weight: 486263 lb (220565 kg)
Standard Equipment
Front Axle - Empty 47.2%
Rear Axle - Empty 52.8%
Front Axle - Loaded 33.3%
Rear Axle - Loaded 66.7%
Note Weight distributions optimized with Cat body.
Standard Equipment
Type Double reduction, planetary with full floating axles.
Differential Ratio 1.276:1
Planetary Ratio 16.67:1
Total Reduction Ratio 21.26:1
Note Double reduction, planetary with full floating axles.
Standard Equipment
Forward - 1 10.7 km/h
Forward - 2 14.4 km/h
Forward - 3 19.3 km/h
Forward - 4 26.1 km/h
Forward - 5 35 km/h
Forward - 6 47.3 km/h
Forward - 7 63.6 km/h
Reverse 11.9 km/h
Top Speed - Loaded 63.6 km/h
Standard Equipment
Tires 59/80 R63
Rims 44" x 63"
Note Quick Change Rims optional.
Note (1) Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.
Standard Equipment
Service Brakes Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area 132259 cm²
Rear - Wet Disc Brake Surface Area 198388 cm²
Standards Service and Secondary: ISO 3450:2011
Parking Brake Four-corner, Multi-disc, Spring Applied, Hydraulically Released
Load Brake Rear service brakes
Note Anti-Lock Brake System (ABS) optional with CMD package
Standard Equipment
Struck 225 yd³ / 172 m³
Heaped (SAE 2:1)* 330 yd³ / 252 m³
Note (1) Consult your local Cat dealer for body recommendations.
Standard Equipment
Type Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle 1140 l/min
Relief Valve Setting - Raise 24200 kPa
Body Raise Time - High Idle 25 s
Body Lower Time - Float 18 s
Body Power Down- High Idle 18 s
Standard Equipment
Type Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front 99.1 mm
Effective Cylinder Stroke - Rear 93.2 mm
Rear axle - Oscillation ±3.96 degrees
Standard Equipment
Fuel Tank 3785 l
Fuel Tank (Tier 4) 4542 l
Diesel Exhaust Fluid Tank 375 l
Cooling System 1160 l
Crankcase 390 l
Front Wheels - Each 61 l
Differentials 1250 l
Steering Tank 254 l
Steering System - Including Tank 360 l
Brake/Hoist Tank 770 l
Brake Hoist System - Includes Tank 1850 l
Torque Converter Sump 303 l
Torque Converter/Transmission System - Including Sump 629 l
Note (1) DEF Tank only available for EPA Tier 4 engine option.
Standard Equipment
Air Conditioning HFC - 134A refrigerant: 24,300 Btu/h
Heater / Defroster 38900 Btu/h
Note Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning.
ROPS Standards (1) The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008.
ROPS Standards (2) ROPS (Rollover Protective Structure) meets ISO 3471:2008 criteria.
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II criteria.
Standard Equipment
Steering Angle 40 °
Turning Diameter - Front 37.4 m
Steering Standards ISO 5010:2007
Note Turning Diameter (ISO 7457:2009)
Standard Equipment
Rear Axle - Clearance - Loaded 947 mm
Inside Body Depth - Maximum 3363 mm
Overall Height - Body Raised 15701 mm
Loaded Ground Clearance 786 mm
Loading Height - Empty 6998 mm
Engine Guard Clearance - Loaded 1025 mm
Height - Top of ROPS - Empty 6526 mm
Front Canopy Height - Empty 7709 mm
Overall Body Length 14802 mm
Inside Body Length 9976 mm
Overall Length 15080 mm
Wheel Base 7195 mm
Rear Axle - Tail 3944 mm
Dump Clearance 2017 mm
Centerline Front Tire Width 6534 mm
Overall Canopy Width 9116 mm
Outside Body Width 9755 mm
Inside Body Width 8513 mm
Centerline of Rear Dual Tire Width 6233 mm
Overall Tire Width 9529 mm