797F Mining Truck | 400 Ton Haul Truck

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Nominal Rated Payload401 ton (US) (364 t)
Rated Gross Machine Weight1375000 lb (623690 kg)
Gross Power - SAE J19954000 HP (2983 kW)
Net Power - SAE J13493795 HP (2828 kW)
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.


Nominal Rated Payload401 ton (US) (364 t)
Rated Gross Machine Weight1375000 lb (623690 kg)
Gross Power - SAE J19954000 HP (2983 kW)
Net Power - SAE J13493795 HP (2828 kW)
Engine ModelCat® C175-20
Rated Speed1750 r/min (1750 r/min)
EmissionsU.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.
TypeTwin, two-stage hydraulic cylinders with snubbing valve.
Fuel Tank1000 gal (US) (3785 l)
TypeSelf-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments
Service BrakesService Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Struck225 yd³ / 172 m³
Effective Cylinder Stroke - Front3.9 in (99.1 mm)
TypeDouble reduction, planetary with full floating axles.
Fuel Tank (Tier 4)1200 gal (US) (4542 l)
Air ConditioningHFC - 134A refrigerant: 24,300 Btu/h
Steering Angle40 ° (40 °)
Tires59/80 R63
Pump Flow - High Idle317 gal/min (1140 l/min)
Front Axle - Empty47.2%
Rear Axle - Empty52.8%
Diesel Exhaust Fluid Tank100 gal (US) (375 l)
Front Wet Disc Brake Surface Area20500 in² (132259 cm²)
Turning Diameter - Front122.7 ft (37.4 m)
Heater / Defroster38900 Btu/h (38900 Btu/h)
Rims44" x 63"
Relief Valve Setting - Raise3510 psi (24200 kPa)
Effective Cylinder Stroke - Rear3.7 in (93.2 mm)
Heaped (SAE 2:1)*330 yd³ / 252 m³
Chassis Weight474472 lb (215217 kg)
Front Axle - Loaded33.3%
Rear - Wet Disc Brake Surface Area30750 in² (198388 cm²)
Cooling System306 gal (US) (1160 l)
StandardsService and Secondary: ISO 3450:2011
Body Raise Time - High Idle25 s (25 s)
Crankcase103 gal (US) (390 l)
Body Weight94799 lb (43000 kg)
Bore6.9 in (175 mm)
Rear Axle - Loaded66.7%
Front Wheels - Each16 gal (US) (61 l)
Stroke8.7 in (220 mm)
Parking BrakeFour-corner, Multi-disc, Spring Applied, Hydraulically Released
Body Lower Time - Float18 s (18 s)
Load BrakeRear service brakes
Displacement6469 in³ (106 l)
Body Power Down- High Idle18 s (18 s)
Differentials330 gal (US) (1250 l)
Steering Tank67 gal (US) (254 l)
Steering System - Including Tank95 gal (US) (360 l)
Brake/Hoist Tank203 gal (US) (770 l)
Brake Hoist System - Includes Tank489 gal (US) (1850 l)
Torque Converter Sump80 gal (US) (303 l)
Torque Converter/Transmission System - Including Sump166 gal (US) (629 l)
Forward - 16.6 mile/h (10.7 km/h)
Forward - 28.9 mile/h (14.4 km/h)
Forward - 312 mile/h (19.3 km/h)
Forward - 416.2 mile/h (26.1 km/h)
Forward - 521.8 mile/h (35 km/h)
Forward - 629.4 mile/h (47.3 km/h)
Forward - 739.5 mile/h (63.6 km/h)
Reverse7.4 mile/h (11.9 km/h)
Differential Ratio1.276:1
Planetary Ratio16.67:1
Total Reduction Ratio21.26:1
Rear axle - Oscillation±3.96 degrees
Loaded Ground Clearance2.58 ft (786 mm)
NoteDouble reduction, planetary with full floating axles.
Engine Guard Clearance - Loaded3.33 ft (1025 mm)
Height - Top of ROPS - Empty21.4 ft (6526 mm)
Front Canopy Height - Empty25.33 ft (7709 mm)
Rear Axle - Clearance - Loaded3.08 ft (947 mm)
Loading Height - Empty23 ft (6998 mm)
Inside Body Depth - Maximum11 ft (3363 mm)
Overall Height - Body Raised51.5 ft (15701 mm)
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.
Steering StandardsISO 5010:2007
NoteWeight distributions optimized with Cat body.
NoteAnti-Lock Brake System (ABS) optional with CMD package
Note (1)DEF Tank only available for EPA Tier 4 engine option.
NoteAmbient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning.
Note (1)Consult your tire manufacturer for maximum tire load
NoteQuick Change Rims optional.
Note (1)Consult your local Cat dealer for body recommendations.
Top Speed - Loaded39.5 mile/h (63.6 km/h)
NoteTurning Diameter (ISO 7457:2009)
Note (2)Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.
ROPS Standards (1)The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008.
Note (1)Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.
Note (2)U.S. EPA Tier 4 Final available for applicable markets.
ROPS Standards (2)ROPS (Rollover Protective Structure) meets ISO 3471:2008 criteria.
Note (3)High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available.
FOPS StandardsFOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II criteria.
Note (4)Tier 4 Chassis Weight: 486263 lb (220565 kg)
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)

Benefits and Features


From slip-resistant surfaces and guard rails to state-of-the-art collision avoidance technologies, the Cat 797F is infused with features to help operators feel safe and confident on the job.

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.

Isolation Box

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

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.

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


Superior mechanical power density delivers high efficiency at the lowest system weight and cost.

The Cat seven-speed planetary power shift transmission varies gear ratios to optimize powertrain efficiency to the application, delivering constant power over a wide range of operating speeds.

The lock-up torque converter delivers low-speed movement control and unsurpassed stall torque while still allowing for efficient direct drive haulage. Cat final drives work as a system with the planetary power shift transmission to deliver maximum power to the ground.


The 797F delivers optimal speed on steep grades, poor underfoot conditions and haul roads with high rolling resistance for faster cycle times when compared to competitive trucks. Its C175-20 diesel engine's 20-cylinder, four-stroke design uses long, effective power strokes for optimum efficiency.
—The 23% net torque rise provides unequaled lugging force during acceleration. The 797F travels loaded at a top speed of 60 km/h (42 mph).


Like all Cat mechanical-drive trucks, the 797F features four-corner oil-cooled brakes and Automatic Retarding Control to improve handling and machine control so operators can work quickly and confidently.


The individual components, software, systems and engine that go inside a Cat truck have different purposes, but they have one very important thing in common: They are all manufactured by Caterpillar and supported by the Cat dealer network. This integration ensures that the entire truck — from body to bumper, engine to electronics — can be fully optimized to deliver the lowest cost per ton.


No one knows more about how to get the most from a piece of Cat equipment than your local Cat dealer. This one-of-a-kind, on-the-ground support network delivers expert service, integrated solutions, after-sales support, fast and efficient parts fulfilment, world-class rebuild and remanufacturing capabilities, and more.

Cat dealers operate as nearly 200 local businesses — each one fully embedded in and committed to the geographic area it serves. That means you work with people you know, who know your business, and who respond on your timeframe.


Governments and regulatory agencies mandate that you establish and follow environmentally sound policies and practices as you meet the demand for mined materials. We're focused on doing our part to make sure our trucks help you meet those regulations.


We've designed the 797F to use less fuel, which reduces engine emissions and carbon footprint, and there is zero fuel burn during retarding.
— The optional Tier 4 Final engine reduces NOx and particulate matter.
— Rear axle filtration, extended life filters and extended maintenance intervals decrease the amount of waste contributed to the environment.

We also continue to research alternative energy sources such as biofuels (B20) and a liquefied natural gas-supplied Dynamic Gas Blending solutions to find new ways to reduce emissions. In addition, we preserve raw materials, conserve energy and reduce emissions through the Cat Reman program, which returns end-of-life components to like-new condition.


The Cat 797F is available in a fuel-efficient configuration that meets U.S. EPA Tier 4 Final emissions standards. Through over 150,000 hours of successful operation on Cat large mining trucks, the system has proven its ability to deliver with no impact on machine performance.

Designed for easy serviceability with readily accessible components, the modular aftertreatment system reduces overall fluid and fuel consumption and is aligned with truck preventive maintenance intervals to maintain high availability. Lower fuel burn results in longer engine life and lower repair costs.


Cat trucks are designed to last over 100,000 hours, and many are going well beyond that. The frame, powertrain, engine and components are built to be rebuilt — using new, remanufactured or rebuilt parts and components — so you can take advantage of multiple lives of like-new performance at a fraction-of-new price.


— Over 130,000 hours in Canadian Oil Sands
​​​​​​​— Major drive train component life improvement
​​​​​​​— Over 80% of frame is cast, not fabricated
​​​​​​​— 5% tire life improvement
​​​​​​​​​​​​​​— Significant engine life increase



Aside from paying operators, fuel is often the biggest operating expense for a mining truck. That's why we've worked to make the 797F one of the most fuel-efficient trucks in the industry. We've completed multiple projects in search of new ways to reduce fuel consumption in a variety of applications such as flat hauls, high-altitude deep pits and oil sands. And we've seen improvements from 3% to 10%.

Multiple power settings allow you to operate at full power or in economy mode, so you can decide how much power you need. By flipping a switch, these modes fine-tune hydraulic and engine output to match the job at hand. Eco-mode has been shown to deliver fuel savings of up to 3.5% per cycle.


The 797F features a robust frame that allows for maximum payloads so you can haul more with every load. In higher altitudes, you'll enjoy a cost per ton advantage over competitive models, ranging from 6% to as high as 14%. And when you choose the HP Body option, you'll reduce weight an additional 2.0-5.0 tonnes (2.2-5.5 tons).

Cat® MineStar™ Solutions

Whether you want to address a single challenge or make step changes in the overall safety, efficiency and productivity of your surface operation, Cat® MineStar™ has a solution for you. MineStar is the mining industry's most comprehensive and thoroughly integrated suite of technology offerings.


Cat Fleet helps you identify opportunities to improve truck efficiency in ways that reduce costs, boost productivity and add real value to your bottom line.
— Eliminate Queuing
— Optimize Shift Changes
— Reduce Fuel Stops


This autonomous hauling solution helps improve productivity, efficiency and profitability while reducing overall costs.

What if your trucks could respond to calls to the shovel, move into position, haul to dump points and even report for maintenance — all without an operator on board? That's what Cat Command for hauling enables.

But this autonomous Cat MineStar solution is more than just an operator-free system. It takes advantage of the most sophisticated technologies available to deliver a next-generation haulage solution — one that boosts safety, productivity and availability on busy mine sites, especially those in difficult or remote locations. With autonomous hauling, the future is here — and we're there to help you bring it to your operation.


With the MineStar Detect proximity detection system, you can equip your 797F with cameras to give your operators a better view of what's happening around their equipment — or combine cameras and radar into a true object detection system that automatically alerts operators to hazards.

You can even add satellite capabilities to provide proximity warnings and avoidance zones, seat-belt monitoring that encourages operators to buckle up, and in-cab systems that intervene when they detect fatigue or distraction.

Road Analysis Control (RAC)

Optional system monitors haul road conditions by measuring frame rack and pitch to improve haul road maintenance, cycle times, tire life and fuel efficiency.


When it comes to truck bodies, one size does not fit all. And when it comes to your Cat truck, Cat bodies are the best choice. We follow a dynamic approach to engineering — treating the body as part of a system rather than a static structure. Cat bodies are designed to be an integral part of the entire vehicle system, ensuring you achieve maximum chassis life.
— They're sized to meet payload requirements without compromise to vehicle balance, braking or control.
— From the design to the materials, manufacturing to shipping, the entire process meets Cat standards of quality and control.
— The Caterpillar exclusive 10/10/20 payload guidelines help achieve a balance of excellent payload with safe operation.

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.


— Grouped ground level maintenance and checkpoints
— Oil level sight gauges and front wheel sight glass
— Electronic Clutch Pressure Controls (ECPC) diagnostics
— Service platforms on the engine and transmission
— Optional electric start, which removes air system
​​​​​​​​​​​​​​— Optional fast fill service center and brake wear indicators


Enhanced Engine Oil Filtration System (SCF/COF)

— Reduced risk of contamination
— Extend oil change intervals & reduce oil waste
— Eliminate cartridge filter changes

Standard Equipment

  • Alarm, back-up
  • Brushless, alternator, 150 ampere
  • Batteries, 12V (2) 93 amp-hour
  • Converter, 12V electrical
  • Electrical system, 24V, 10, 20 and 25 amp
  • Battery charge receptacle
  • Lighting system:
    – Back-up and hazard lights
    – Directional signals (front, rear LED)
    – Front stair access/Service deck
    – Stop/tail lights (LED)
    – Engine compartment
    – VIMS, blue light (LED)
    – Headlights with lo-hi beam selector
  • Standard cab:
    – Standard optimized operator seats
    – Suspension trainer seat
    – Flip down front visor
    – Standard side of cab access
  • Deluxe cab:
    – Heated and ventilated seats
    – Suspension trainer seat
    – Retractable front visor
    – Rear of cab access and standard side of cab access
    – Power windows
  • Deluxe cold weather cab:
    – Heated and ventilated seats
    – Suspension trainer seat
    – Retractable front visor
    – Rear of cab access and standard side of cab access
    – Power windows
    – Heated mirrors
  • All cab options include the following features:
    • Air conditioner with automatic climate control
    • 12V DC power supply (3)
    • Coat hook
    • Diagnostic connection port
    • Dome courtesy light
    • Entertainment radio ready 5 amp converter, speakers and wiring harness
    • Gauges/Indicators:
      – Gauge panel: Transmission fluid temperature; Brake oil temperature; Engine coolant temperature; Fuel level; Torque converter oil temperature
      – Electric engine control fault indicator
      – Electric hour meter
      – Speedometer
      – Tachometer
      – Transmission gear indicator
      – VIMS message center with advisor
    • Heater/defroster (11 070 kCal/43,930 Btu)
    • Horn
    • Cat Detect System
    • Storage compartments
    • Hoist, body control (electric)
    • ROPS cab, insulated/sound suppressed
    • Seat, operator, air suspension
    • Seatbelt, operator, three-points, retractable
    • Seat, trainer, air suspension
    • Seatbelt, trainer, two-points, retractable
    • Stairway and walkway access, 600 mm (23.6 in)
    • Steering wheel, multi tilt, padded, telescopic
    • Tinted glass
    • Window, operator, electric powered
    • Windshield wiper, intermittent control and washer
    • Cup holder
    • Mirrors, right and left
  • C175-20 emits equivalent to Tier 2 emission standards:
    – Turbocharging (4)/Air-to-Air Aftercooler (ATAAC)
    – Air cleaner with precleaner (4)
    – Ground level engine shutdown
    – Ether starting aid (automatic)
    – Elevated low idle control
    – Crankcase protection
    – Multi-point oil pressure sensing
    – Automatic starter protection
  • Braking system:
    – Park brake integrated with gear selector
    – Brake release motor (towing)
    – Oil-cooled, multi-disc (front and rear) – service, retarding, parking, secondary
    – Automatic Retarder Control, adjustable
    – Engine overspeed protection
    – Extended life brake disc material
  • Transmission:
    – 7-speed, automatic powershift with electronic controls (ECPC)
    – Body-up shift inhibitor
    – Controlled throttle shifting
    – Directional shift management
    – Neutral coast inhibitor
    – Neutral start switch
    – Downshift/Reverse shift inhibitor
    – Individual clutch modulation
    – Body-up reverse neutralizer
    – Programmable top speed
    – Lock-up torque converter
  • Pre-lubrication/engine
  • Rear axle continuous lubrication/filtration
  • Traction Control System
  • Auto lubrication system
  • Aux “buddy” dumping quick connect
  • Aux steering quick connect (towing)
  • Driveline guard
  • Fast fill fuel system
  • Fuel filter with water separator
  • Ground level VIMS data port
  • Ground level battery lockout
  • Ground level transmission lockout
  • Ground level engine start lockout
  • Ground level engine shut-down
  • High-speed crankcase oil change
  • Reservoirs (3 separate):
    – Brake/Hoist, Steering/Fan, Transmission/Converter
  • Rock ejectors
  • Supplemental steering (automatic)
  • Tie-down eyes
  • Center hitch and tow points (front), tow pin (rear)
  • Vandalism protection locks
  • Vital Information Management System (VIMS):
    – Includes VIMS Payload Monitor with max payload and speed manager
  • Hydraulic filters, 1,000 hour
  • S•O•S℠ sample ports
  • Service points, ground level
  • Sight level gauges for hydraulic/engine oil
  • Extended Life Coolant to –35° C (–30° F)

Optional Equipment

  • Cat Detect System
  • Cabin air precleaner
  • Throttle lock
  • Engine delay shutdown timer
  • Antifreeze/coolant protects to –50° C (–58° F)
  • Fuel tank (7570 L/2,000 gal)
  • SL-V grease injectors
  • Body heat
  • Rear axle lubrication cooler
  • External digital payload display
  • Oil renewal system
  • Oil renewal system with 3 day tank
  • Engine coolant and oil heater for cold weather starts
  • Road Analysis Control (RAC)
  • Portable fire extinguisher
  • Torque converter guard
  • Brake wear indicator gauge
  • Rims (wedge)
  • Rim guard