789 Mining Truck

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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 new Cat® 789 continues the tradition of Caterpillar’s proven 789 Truck with high productivity and lowest in class cost per ton.

Weights - Approximate

Nominal Rated Payload
211 ton (US)
Rated Gross Machine Weight
715000 lb
Chassis Weight
234003 lb
Body Weight
59827 lb
Note (1)
Consult your tire manufacturer for maximum tire load.
Note (2)
Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.

Engine

Gross Power - SAE J1995
2100 HP
Engine Model
Cat® 3516E
Net Power - SAE J1349
1975 HP
Rated Speed
1650 r/min
Emissions Rating
U.S. Tier 4 / EU Stage V
Bore
6.7 in
Stroke
8.5 in
Displacement
4766 in³
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.

Service Refill Capacities

Fuel Tank - Standard
544 gal (US)
Diesel Exhaust Fluid Tank
62 gal (US)
Cooling System
180 gal (US)
Final Drive - Each
5.8 gal (US)
Crankcase
77 gal (US)
Differential - Final Drives
161 gal (US)
Steering Tank
42 gal (US)
Steering System - Includes Tank
46 gal (US)
Brake/Hoist Tank
169 gal (US)
Brake Hoist System
347 gal (US)
Brake Hoist System - Includes Tank
55 gal (US)
Torque Converter - Transmission System - Including Sump
55 gal (US)

Suspension

Type
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front
4.12 in
Effective Cylinder Stroke - Rear
3.67 in
Rear axle - Oscillation
±5°

Body Hoists

Type
Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle
106.5 gal/min
Relief Valve Setting - Raise
2749 psi
Body Raise Time - High Idle
14 s
Body Lower Time - Float
16 s

Capacity - Dual Slope - 100% Fill Factor

Struck
101 yd³
Heaped (SAE 2:1)
141 yd³

Braking System

Service Brakes
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area
12662 in²
Rear - Wet Disc Brake Surface Area
20861 in²
Standards
Service and Secondary: ISO 3450:2011
Parking Brake
Four-corner, Multi-disc, Spring Applied, Hydraulically Released

Tires

Standard Tires
37.00-R51
Optional Tires
40.00-R51
Rims
29" x 57"
Note (1)
Quick Change Rims optional.
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

Final Drives

Type
Double reduction, planetary with full floating axles.
Differential Ratio
2.35:1
Planetary Ratio
10.83:1
Total Reduction Ratio
25.46:1

Weight Distributions - Approximate

Front Axle - Empty
50 %
Rear Axle - Empty
50 %
Front Axle - Loaded
33 %
Rear Axle - Loaded
67 %

Steering

Steering Angle
36.07 °
Turning Diameter - Front
90.3 ft
Steering Standards
ISO 5010:2007

Cab

Air Conditioning
HFC - 134A refrigerant: 31733 Btu/h
Heater / Defroster
36510 Btu/h
Note
The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008.
ROPS Standards (1)
ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 for Operator and ISO 13459:2012 Level II for Trainer.

Dimensions (Approximate)

Height - Top of ROPS
18.25 ft
Overall Body Length
42 ft
Inside Body Length
27.33 ft
Overall Length
41.5 ft
Wheel Base
18.67 ft
Rear Axle - Tail
11.75 ft
Ground Clearance
4.25 ft
Dump Clearance
4.75 ft
Loading Height - Empty
18.58 ft
Rear Sidewall Height
3.17 ft
Inside Body Depth - Maximum
9.33 ft
Overall Height - Body Raised
44.08 ft
Operating Width
25.67 ft
Centerline Front Tire Width
17.75 ft
Engine Guard Clearance
4.25 ft
Overall Canopy Width
25.08 ft
Outside Body Width
22.5 ft
Inside Body Width
21.33 ft
Front Canopy Height
21.42 ft
Rear Axle - Clearance
4.17 ft
Centerline of Rear Dual Tire Width
15.42 ft
Overall Tire Width
23.33 ft

Dimensions (All dimensions are approximate. Dimensions are with body 507-1580.)

Centerline Rear Dual Tire Width
15.42 ft

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