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789D Mining Truck

789D Mining Truck

At a Glance

Nominal Rated Payload
210 ton (US)
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995
2100 HP
Rated Gross Machine Weight
715000 lb
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Caterpillar’s exclusive design ownership provides advantages by creating a total hauling unit that delivers the best integration of high production, availability, and payload in combination with low operating cost and long life. The Cat® 789D continues the tradition of Caterpillar’s proven 789 Truck with high productivity and lowest in class cost per ton.

Weights - Approximate

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Nominal Rated Payload 210ton (US)
Rated Gross Machine Weight 715000lb
Chassis Weight 218542lb


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Engine Model Cat® 3516C HD
Gross Power - SAE J1995 2100HP
Rated Net Power - ISO 9249 1969HP
Bore 6.7in
Stroke 8.3in
Displacement 4766in³
Net Power 1969HP
Gross Power 2100HP

Body - Dual Slope

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Body Weight 60684lb

Operating Specifications

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Standard MSD Body (SAE 2:1) 170yd³
Standard X Body (SAE 2:1) 161yd³
Standard Dual Slope Body (SAE 2:1) 141yd³
Standard Combi Body (SAE 2:1) 200yd³
Standard Gateless Coal Body (SAE 2:1) 250yd³

Optional Engine

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Engine Model Cat® 3516B EUI
Gross Power 1900HP
Rated Net Power - ISO 9249 1791HP
Bore 6.7in
Stroke 7.5in
Displacement 4211in³

Weight Distributions - Approximate

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Front Axle - Empty 46%
Rear Axle - Empty 54%
Front Axle - Loaded 33%
Rear Axle - Loaded 67%
Note Weight distributions optimized with Cat body.


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Steering Standards SAE J1511 OCT90 ISO 5010:1992
Steering Angle 36.07°
Turning Diameter - Front Wheel 90.32ft
Vehicle Clearance - Turn Circle 99.18ft

Service Refill Capacities

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Fuel Tank - Standard 550gal (US)
Fuel Tank - Optional 1000gal (US)
Cooling System 192gal (US)
Crankcase 77gal (US)
Differential - Final Drives 154gal (US)
Steering System 50gal (US)
Brake Hoist System 241gal (US)
Transmission Tank 20gal (US)


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Forward - 1 7.8mile/h
Forward - 2 10.6mile/h
Forward - 3 14.4mile/h
Forward - 4 19.4mile/h
Forward - 5 26.3mile/h
Forward - 6 35.5mile/h
Reverse 7.3mile/h
Top Speed - Loaded 35.5mile/h

Final Drives

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Differential Ratio 2.35:1
Planetary Ratio 10.83:1
Total Reduction Ratio 25.46:1


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Effective Cylinder Stroke - Front 4in
Effective Cylinder Stroke - Rear 3.5in
Rear axle - Oscillation ±5.6°


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Brake Surface - Front 12662in²
Brake Surface - Rear 18024in²
Standards SAE J1473 OCT90 ISO 3450:1996

Body Hoists

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Pump Flow - High Idle 193gal/min
Relief Valve Setting - Raise 2500psi
Body Raise Time - High Idle 18.9s
High Idle Body Lower Time - Float 17.3s
High Idle Body Lower Time - Power 15.6s


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Standard Tires 37.00-R57
Optional Tires 40.00-R57


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ROPS Standards Standards


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Sound Standards Standards