Caterpillar 785D Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Caterpillar ➔
Model: 785D ➔

The Caterpillar 785D is a powerful Off-Highway Truck designed for heavy-duty tasks in construction and mining operations. With a robust body hoist system, impressive dump capacity, and a high-powered Cat 3512C HD engine, this rigid truck boasts exceptional performance capabilities. Its spacious dimensions and high payload capacity make it a reliable choice for various challenging terrains and demanding work environments. Additional features such as a sturdy drive system, efficient transmission, and exceptional weight distribution ensure optimal operation and productivity on the job site.

General Specifications

Caterpillar 785D Off-Highway Truck General Specifications specifications
Articulated/Rigid	R — Starting 2019 Model Year
Drive Configuration	2WD — Starting 2019 Model Year
Engine Type	Cat 3512C HD — Starting 2019 Model Year
Mfg. Model	785D — Starting 2019 Model Year
Operating Weight	550,000.00 lbs (249,433.12 kg) — Starting 2019 Model Year
Planetary Powershift Transmission	Auto — Starting 2019 Model Year
Rated Payload	136.00 t (136,000.00 kg) — Starting 2019 Model Year

Articulating/Rigid

Caterpillar 785D Off-Highway Truck Articulating/Rigid specifications
Articulating/Rigid	Rigid

Body Hoists

Caterpillar 785D Off-Highway Truck Body Hoists specifications
Body Lower Time - Float	16.2 seconds
Body Raise Time - High Idle	15.2 seconds
Pump Flow - High Idle	198.00 gpm (749.43 lpm)
Relief Valve Setting - Raise	2500 psi

Dimensions

Caterpillar 785D Off-Highway Truck Dimensions specifications
Dump Ground Clearance	4.00 ft (1.22 m)
Dump Height	38.80 ft (11.83 m)
Ground Clearance	3.30 ft (1.01 m)
Overall Height	16.90 ft (5.15 m)
Overall Length	37.90 ft (11.55 m)
Overall Width	21.80 ft (6.64 m)
Wheelbase	17.00 ft (5.18 m)

DRIVE SYSTEM

Caterpillar 785D Off-Highway Truck DRIVE SYSTEM specifications
Drive Config	2WD

Dump

Caterpillar 785D Off-Highway Truck Dump specifications
Load Capacity - heaped	102.00 cu yd (77.98 cu m)
Lower Time	15.9 seconds
Raise Time	15.2 seconds
Rated Payload	300,000.00 lbs (136,054.43 kg)

Engine

Caterpillar 785D Off-Highway Truck Engine specifications
Bore	6.70 in (17.02 cm)
Displacement	3,573.60 cu in (58,560.94 cu cm)
Engine Model	Cat 3512C HD
Gross Power	1,450.00 hp (1,081.28 kw)
Gross Power - SAE J1995	1,450.00 hp (1,081.28 kw)
Make	Cat
Net Power	1,348.00 hp (1,005.22 kw)
Net Power - 80/1269/EEC	1,348.00 hp (1,005.22 kw)
Net Power - Cat	1,348.00 hp (1,005.22 kw)
Net Power - ISO 9249	1,348.00 hp (1,005.22 kw)
Net Power - SAE J1349	1,348.00 hp (1,005.22 kw)
Power Measured @	1750 rpm
Rated Engine Speed	89.1 rpm
Stroke	8.40 in (21.34 cm)

Final Drives

Caterpillar 785D Off-Highway Truck Final Drives specifications
Planetary Ratio	10.83:1
Total Reduction Ratio	22.75:1

Operating Specifications

Caterpillar 785D Off-Highway Truck Operating Specifications specifications
Brake/Hoist System Fluid Capacity	169.40 gal (641.18 l)
Cooling System Fluid Capacity	100.20 gal (379.26 l)
Diff and Final Drive Fluid Capacity	115.20 gal (436.03 l)
Engine Oil Capacity	53.90 gal (204.01 l)
Fuel Capacity	500.10 gal (1,892.88 l)
Hydraulic System Fluid Capacity	89.10 gal (337.24 l)
Nominal Payload Capacity	115.00 lbs (52.15 kg)
Steering System Fluid Capacity	31.00 gal (117.34 l)
Tire Size	33.00-51 50PR (E3 & E4)
Top Speed - Loaded	34.00 mph (54.72 kph)
Turning Circle - Clearance Diameter	65.60 ft (19.99 m)

Service Refill Capacities

Caterpillar 785D Off-Highway Truck Service Refill Capacities specifications
Brake Hoist System - Includes Tank	169.00 gal (639.67 l)
Cooling System	100.00 gal (378.50 l)
Fuel Tank - Optional	20,831.00-30,623.00 kg (45,932.35-67,523.71 lbs)
Fuel Tank - Standard	500.00 gal (1,892.50 l)
Steering System - Including Tank	31.00 gal (117.34 l)
Steering Tank	24.00 gal (90.84 l)
Torque Converter/Transmission System - Including Sump	65.60 gal (248.30 l)

Sound

Caterpillar 785D Off-Highway Truck Sound specifications
Sound Standards	ANSI/SAE J1166 MAY90 SAE J88 APR95

Suspension

Caterpillar 785D Off-Highway Truck Suspension specifications
Rear axle - Oscillation	12.1 degrees

Transmission

Caterpillar 785D Off-Highway Truck Transmission specifications
Forward - 1	7.50 mph (12.07 kph)
Forward - 2	10.20 mph (16.42 kph)
Forward - 3	13.80 mph (22.21 kph)
Forward - 4	18.60 mph (29.93 kph)
Forward - 5	25.20 mph (40.56 kph)
Forward - 6	34.00 mph (54.72 kph)
Max Speed	34.00 mph (54.72 kph)
Number of Gears - Forward	6
Number of Gears - Reverse	1
Reverse	6.80 mph (10.94 kph)

Weights

Caterpillar 785D Off-Highway Truck Weights specifications
Chassis Weight	89.00 lbs (40.36 kg)
Empty Weight	259,257.00 lbs (117,576.87 kg)
Loaded Weight	550,000.40 lbs (249,433.30 kg)
Operating Weight - Loaded	SAE J1511 OCT90 ISO 5010:1992 lbs (0.00 kg)
Rear Axle - Empty	54-55%
Weight Distribution Front - empty	46%
Weight Distribution Front - loaded	33%
Weight Distribution Rear - empty	55%
Weight Distribution Rear - loaded	67%

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