Caterpillar 797 Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Caterpillar ➔
Model: 797 ➔

The Caterpillar 797 Off-Highway Truck is a formidable machine designed for heavy-duty hauling in mining and construction applications. With a powerful Cat 3524B engine producing up to 3400 horsepower and an impressive dump load capacity of 287.8 cubic yards, this off-highway truck is built for efficient and high-capacity operations. Its sturdy construction, advanced braking system, and reliable transmission make it a top choice for tackling demanding tasks in challenging environments. Explore the detailed specifications of the Caterpillar 797 below to discover its exceptional performance capabilities.

Approximate Weights - Flat Floor

Caterpillar 797 Off-Highway Truck Approximate Weights - Flat Floor specifications
Chassis	458,500.00 lbs (207,936.52 kg)
Front Axle - Empty	43.5 %
Front Axle - Loaded	33.3 %
Rear Axle - Empty	56.5 %
Rear Axle - Loaded	66.7 %

Body Hoists

Caterpillar 797 Off-Highway Truck Body Hoists specifications
Body Lower Time - Float	18.5 s
Body Power Down - High Idle	17.3 s
Body Raise Time - High Idle	25 s
Pump Flow - High Idle	323.00 gpm (1,222.56 lpm)
Relief Valve Setting - Raise	3450.01 psi

Brakes

Caterpillar 797 Off-Highway Truck Brakes specifications
Standards	Meet J-ISO 3450 JAN88 and ISO 3450-1996 standards

Dimensions

Caterpillar 797 Off-Highway Truck Dimensions specifications
Centerline Front Tire Width	21.65 ft (6.60 m)
Centerline Of Rear Dual Tire Width	19.91 ft (6.07 m)
Dump Clearance	6.13 ft (1.87 m)
Dump Height	49.22 ft (15.00 m)
Engine Guard Clearance	3.75 ft (1.14 m)
Height - Top Of Rops	21.39 ft (6.52 m)
Inside Body Depth - Maximum	10.98 ft (3.35 m)
Inside Body Length	32.29 ft (9.84 m)
Inside Body Width	26.25 ft (8.00 m)
Loading Height - Empty	23.12 ft (7.05 m)
Operating Width	30.03 ft (9.15 m)
Outside Body Width	27.97 ft (8.53 m)
Overall Body Length	47.67 ft (14.53 m)
Overall Height	23.76 ft (7.24 m)
Overall Height - Body Raised	49.18 ft (14.99 m)
Overall Length	47.67 ft (14.53 m)
Overall Tire Width	30.03 ft (9.15 m)
Overall Width	30.02 ft (9.15 m)
Rear Axle - Clearance	2.58 ft (0.79 m)
Rear Axle - Tail	13.18 ft (4.02 m)
Wheel Base	23.62 ft (7.20 m)
Wheelbase	23.63 ft (7.20 m)

Dump

Caterpillar 797 Off-Highway Truck Dump specifications
Load Capacity - Heaped	287.75 cu yd
Load Capacity - Struck	226.28 cu yd
Rated Payload	760,000.00 lbs (344,671.21 kg)

Engine

Caterpillar 797 Off-Highway Truck Engine specifications
Displacement	7,139.80 cu in (117,000.62 cu cm)
Engine Make	2236
Engine Model	Cat 3524B
Gross Power	3,400.00 hp (2,535.42 kw)
Gross Power - Sae J1995	3,400.00 hp (2,535.42 kw)
Net Power	3,211.00 hp (2,394.48 kw)
Net Power - 80/1269/Eec	3,211.00 hp (2,394.48 kw)
Net Power - Cat	3,211.00 hp (2,394.48 kw)
Net Power - Iso 9249	3,211.00 hp (2,394.48 kw)
Net Power - Sae J1349	3,178.00 hp (2,369.87 kw)

Final Drives

Caterpillar 797 Off-Highway Truck Final Drives specifications
Differential Ratio	1.265:1
Planetary Ratio	16.67:1
Total Reduction Ratio	21.09:1

Operating Specifications

Caterpillar 797 Off-Highway Truck Operating Specifications specifications
Lower Time	17.3 s
Maximum Capacity Struck (Sae)	228 cu yd
Maximum Payload Capacity	720,000.00 lbs (326,530.62 kg)
Minimum Payload Capacity	642,680.00 lbs (291,464.86 kg)
Raise Time	24 s
Top Speed - Loaded	40.00 mph (64.37 kph)

Operational

Caterpillar 797 Off-Highway Truck Operational specifications
Fuel Capacity	1,799.90 gal (6,812.62 l)
Tire Size	55/80R63

Rops

Caterpillar 797 Off-Highway Truck Rops specifications
Rops Standards	Meets SAE J1040 APR88, SAE J231 JAN81, ISO 3471-1994 and ISO 3449-1992 LEVEL II

Service Refill Capacities

Caterpillar 797 Off-Highway Truck Service Refill Capacities specifications
Brake/Hoist Hydraulic Tank	263.00 gal (995.46 l)
Cooling System	315.00 gal (1,192.28 l)
Crankcase	110.00 gal (416.35 l)
Fuel Tank - Standard	1,000.00 gal (3,785.00 l)
Steering System - Including Tank	114.00 gal (431.49 l)
Steering Tank	62.00 gal (234.67 l)
Torque Converter/Transmission System - Including Sump	166.00 gal (628.31 l)

Sound

Caterpillar 797 Off-Highway Truck Sound specifications
Sound Standards	Meets OSHA and MSHA occupational noise exposure criteria

Steering

Caterpillar 797 Off-Highway Truck Steering specifications
Steering Standards	Meets SAE J1511 OCT90 and ISO 5010-1984 standards

Tires

Caterpillar 797 Off-Highway Truck Tires specifications
Standard Tires	55/80R63 tires

Transmission

Caterpillar 797 Off-Highway Truck Transmission specifications
Forward - 1	6.70 mph (10.78 kph)
Forward - 2	9.00 mph (14.48 kph)
Forward - 3	12.10 mph (19.47 kph)
Forward - 4	16.30 mph (26.23 kph)
Forward - 5	22.00 mph (35.41 kph)
Forward - 6	29.70 mph (47.80 kph)
Forward - 7	39.90 mph (64.21 kph)
Max Speed	39.80 mph (64.05 kph)
Reverse	7.6 mile/h

Weight Distributions - Approximate

Caterpillar 797 Off-Highway Truck Weight Distributions - Approximate specifications
Front Axle - Empty	43.5 %
Rear Axle - Empty	56.5 %

Weights

Caterpillar 797 Off-Highway Truck Weights specifications
Empty Weight	1,225,748.30 lbs (555,894.94 kg)
Loaded Weight	719,875.50 lbs (326,474.16 kg)
Weight Distribution Front - Empty	43.5 %
Weight Distribution Front - Loaded	33 %
Weight Distribution Rear - Empty	46.5 %
Weight Distribution Rear - Loaded	67 %

Weights - Approximate

Caterpillar 797 Off-Highway Truck Weights - Approximate specifications
Chassis Weight	459,462.70 lbs (208,373.11 kg)
Gross Machine Operating Weight (Gmw)	1,314,000.00 lbs (595,918.39 kg)
Operating Weight - Empty	510,000.00 lbs (231,292.53 kg)
Operating Weight - Loaded	1,230,000.00 lbs (557,823.15 kg)

Our Main Office

Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200

About Us

Construction Equipment Guide covers the nation with its four regional newspapers, offering construction and industry news and information along with new and used construction equipment for sale from dealers in your area. Now we extend those services and information to the internet. Making it as easy as possible to find the news and equipment that you need and want.

Contents Copyrighted 2026, by Construction Equipment Guide, which is a Registered Trademark, registered in the U.S. Patent Office. Registration number 0957323. All rights reserved, nothing may be reprinted or reproduced (including framing) in whole or part without written permission from the publisher. All editorial material, photographs, drawings, letters, and other material will be treated as unconditionally assigned for publication and copyright purposes and are subject to Construction Equipment Guide’s unrestricted right to edit and comment editorially. Contributor articles do not necessarily reflect the policy or opinions of this publication.

Read our privacy policy here.
Mastodon