New CAT Equipment

789D Mining Truck

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.

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Product Specs

Engine

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

Optional Engine

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

Weights - Approximate

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

Body - Dual Slope

Body Weight 60684 lb

Operating Specifications

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

Transmission

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

Final Drives

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

Suspension

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

Brakes

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

Body Hoists

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

Weight Distributions - Approximate

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

Tires

Standard Tires 37.00-R57
Optional Tires 40.00-R57

Service Refill Capacities

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

ROPS

ROPS Standards Standards

Sound

Sound Standards Standards

Steering

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