Caterpillar 789D Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Caterpillar ➔
Model: 789D ➔

The Caterpillar 789D Off-Highway Truck is a powerhouse of performance, boasting a rigid body hoist with impressive raise time and pump flow capabilities. Equipped with a 2100 hp Cat 3516C HD engine and a dump rated payload of 181 tons, this 2WD drive configuration vehicle is designed for heavy-duty tasks. With a large operating weight and top-notch transmission speeds, the 789D ensures efficiency and reliability in demanding work environments. Built to meet ROPS standards and equipped with advanced suspension and sound features, this off-highway truck is a top choice for high-performance operations.

General Specifications

Caterpillar 789D Off-Highway Truck General Specifications specifications
Articulated/Rigid	R — Starting 2019 Model Year
Drive Configuration	2WD — Starting 2019 Model Year
Engine Type	Cat 3516C HD — Starting 2019 Model Year
Mfg. Model	789D — Starting 2019 Model Year
Operating Weight lbs (kg)	700,000 (317,515) — Starting 2019 Model Year
Planetary Powershift Transmission	Auto — Starting 2019 Model Year
Rated Payload Tons (Metric Tons)	181 (164.2) — Starting 2019 Model Year

Articulating/Rigid

Caterpillar 789D Off-Highway Truck Articulating/Rigid specifications
Articulating/Rigid	Rigid

Body Hoists

Caterpillar 789D Off-Highway Truck Body Hoists specifications
Body Raise Time - High Idle	18.9 seconds
Pump Flow - High Idle	193.00 gpm (730.51 lpm)
Relief Valve Setting - Raise	2500 psi

DRIVE SYSTEM

Caterpillar 789D Off-Highway Truck DRIVE SYSTEM specifications
Drive Config	2WD

Dump

Caterpillar 789D Off-Highway Truck Dump specifications
Rated Payload	181.00 t (181,000.00 kg)

Engine

Caterpillar 789D Off-Highway Truck Engine specifications
Bore	6.70 in (17.02 cm)
Displacement	4,766.00 cu in (78,100.92 cu cm)
Engine Model	3516C - HD
Gross Power	2,100.00 hp (1,566.00 kw)
Gross Power - SAE J1995	2,100.00 hp (1,566.00 kw)
Make	Cat
Net Power	1,969.00 hp (1,468.31 kw)
Stroke	8.30 in (21.08 cm)

Final Drives

Caterpillar 789D Off-Highway Truck Final Drives specifications
Planetary Ratio	10.83:1

Operating Specifications

Caterpillar 789D Off-Highway Truck Operating Specifications specifications
Standard MSD Body (SAE 2:1)	170.00 cu yd (129.97 cu m)

ROPS

Caterpillar 789D Off-Highway Truck ROPS specifications
ROPS Standards	Standards

Service Refill Capacities

Caterpillar 789D Off-Highway Truck Service Refill Capacities specifications
Cooling System	192.00 gal (726.72 l)

Sound

Caterpillar 789D Off-Highway Truck Sound specifications
Sound Standards	Standards

Suspension

Caterpillar 789D Off-Highway Truck Suspension specifications
Effective Cylinder Stroke - Rear	3.50 in (8.89 cm)
Rear axle - Oscillation	4 degrees

Transmission

Caterpillar 789D Off-Highway Truck Transmission specifications
Forward - 1	7.80 mph (12.55 kph)
Forward - 2	10.60 mph (17.06 kph)
Forward - 3	14.40 mph (23.17 kph)
Forward - 4	19.40 mph (31.22 kph)
Forward - 5	26.30 mph (42.33 kph)
Forward - 6	35.50 mph (57.13 kph)
Reverse	7.30 mph (11.75 kph)

Weights

Caterpillar 789D Off-Highway Truck Weights specifications
Front Axle - Empty	46%
Front Axle - Loaded	33%
Operating Weight	700,000.00 lbs (317,515.05 kg)
Operating Weight - Loaded	SAE J1511 OCT90 ISO 5010:1992 lbs (0.00 kg)
Rear Axle - Empty	54%
Rear Axle - 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