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789 (04)

Mining Trucks

The Cat® 789 Mining Truck has a history of proven performance in a wide variety of applications. It delivers the lowest cost per ton in its size class, for an overall reduction in your operating costs, along with the reliability and reduced costs that come with long life — from the engine and powertrain to the components, brakes and frame. It also delivers fast speed on grade and a high production capability thanks to a payload advantage over competitive machines. The versatile 789 offers engine options to meet regulatory standards or application-specific needs such as extreme temperatures, high altitude or areas that require sound reductions. And it features safety enhancements like diagonal stairways, wide walkways and optional powered access to protect your most important asset: your people.

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Gross Power - SAE J1995 1566 kW
Net Power 1468 kW
Nominal Rated Payload 194 t
Engine Model Cat® 3516C HD
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789 (04)
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OVERVIEW

Setting the Bar in its Size Class

FEATURES & BENEFITS

PRODUCTIVITY

    The 789 delivers a faster speed on grade than competitive trucks thanks to the efficient 3500 series 16-cylinder engine and mechanical drive... Read more

SAFETY

    Access and egress are safer thanks to the 600-mm-wide (24-in-wide) stairway and walkways, slip-resistant surfaces and hand rails, plus an optiona... Read more

OPERATOR COMFORT

Three cab options — standard, deluxe and cold weather — allow you to select the best features for your application.All options offer an ergonomic layout, excellent all-ar... Read more

SERVICEABILITY

Time spent on regular maintenance procedures is reduce with easy access to daily service points and major components; ground-level access to tanks, filters, drains and en... Read more

DURABILITY AND LONG LIFE

    The 789 frame uses a box-section design, incorporating two forgings and 21 castings in high-stress areas with deep penetrating and continuou... Read more

CAT BODIES

    Cat bodies are the best choice for the 789. They’re designed to be an integral part of the entire vehicle system, ensuring you achieve maximum ch... Read more

SUSTAINABILITY

    We’ve designed the 789 with a number of enhancements that lessen its impact on the environment. Features like oil renewal systems and contin... Read more

VERSATILITY

    The 789 comes with two engine options to help you meet regulatory requirements or application-specific needs. Both the Cat 3516B and 3516C E... Read more

TECHNOLOGY SOLUTIONS

    MineStar Fleet is a fleet monitoring system that can be used to measure, manage and maximize the overall hauling operation.    &nb... Read more

SPECIFICATIONS FOR 789 (04)

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Engine
Gross Power - SAE J1995 1566 kW
Net Power 1468 kW
Engine Model Cat® 3516C HD
Rated Net Power - ISO 9249 1468 kW
Bore 170 mm
Stroke 215 mm
Displacement 78.1 l
Gross Power 1566 kW
Emissions Rating Fuel Optimized
Rated Speed 1750 r/min
Weights - Approximate
Nominal Rated Payload 194 t
Rated Gross Machine Weight 324319 kg
Chassis Weight (37R57 Tires) 102821 kg
Chassis Weight (40R57 Tires) 106010 kg
Optional Engine
Engine Model Cat® 3516B EUI
Gross Power 1417 kW
Rated Net Power - ISO 9249 1320 kW
Bore 170 mm
Stroke 190 mm
Displacement 69 l
Body - Dual Slope
Body Weight 27365 kg
Operating Specifications
Standard MSD Body (SAE 2:1) 130 m³
Standard X Body (SAE 2:1) 123 m³
Standard Dual Slope Body (SAE 2:1) 108 m³
Standard Combi Body (SAE 2:1) 153 m³
Standard Gateless Coal Body (SAE 2:1) 191 m³
Standard HP Body (SAE 2:1) 144 m³
Note Refer to the Cat Mining Truck Optimized payload policy for maximum gross machine weight limitations.
Transmission
Forward - 1 12.6 km/h
Forward - 2 17.1 km/h
Forward - 3 23.1 km/h
Forward - 4 31.2 km/h
Forward - 5 42.3 km/h
Forward - 6 57.2 km/h
Reverse 11.8 km/h
Top Speed - Loaded 57.2 km/h
Final Drives
Differential Ratio 2.35:1
Planetary Ratio 10.83:1
Total Reduction Ratio 25.46:1
Suspension
Effective Cylinder Stroke - Front 105 mm
Effective Cylinder Stroke - Rear 93 mm
Rear axle - Oscillation ±5.4°
Brakes
Brake Surface - Front 81693 cm²
Brake Surface - Rear 134522 cm²
Standards ISO 3450:2011
Body Hoists
Pump Flow - High Idle 699 L/min
Relief Valve Setting - Raise 18950 kPa
Body Raise Time - High Idle 18.9 s
High Idle Body Lower Time - Float 15.6 s
High Idle Body Lower Time - Power 15.6 s
Body Raise Time - High Idle Body 17.3 s
Note (1) Refer to the Cat Mining Truck Optimized payload policy for maximum gross machine weight limitations.
Weight Distributions - Approximate
Front Axle - Empty 50 %
Rear Axle - Empty 50 %
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 2082 l
Fuel Tank - Optional 3785 l
Cooling System 725 l
Crankcase 291 l
Differential - Final Drives 830 l
Steering System 189 l
Brake Hoist System 909 l
Transmission Tank 76 l
Brake/Hoist Hydraulic Tank 540 l
Steering Tank 134 l
ROPS
ROPS Standards Standards
Standar ROPS kg
Sound
Sound Standards Operator sound pressure level 78.5 dB(a) tested to ISO 6394:2008 and ISO 6396:2008
Steering
Steering Standards ISO 5010:2019
Steering Angle 36.07 °
Turning Diameter - Front Wheel 27.53 m
Vehicle Clearance - Turn Circle 30.23 m
Turning Diameter - ISO 7457:1997 (33.00R51 tires) 30.34 m
Body - X
Body Weight 30107 kg
Dimensions (Approximate)
Centerline Front Tire Width 5410 mm
Centerline of Rear Dual Tire Width 4625 mm
Dump Clearance 1740 mm
Engine Guard Clearance 1210 mm
Front Canopy Height 6700 mm
Ground Clearance 1224 mm
Height - Top of ROPS 5400 mm
Inside Body Width 6500 mm
Loading Height - Empty 5470 mm
Outside Body Width 7645 mm
Overall Canopy Width 7645 mm
Overall Height - Body Raised 13335 mm
Overall Length 12650 mm
Overall Tire Width 6945 mm
Rear Axle - Clearance 1178 mm
Rear Axle - Tail 3590 mm
Wheel Base 5700 mm
Cab
Heater / Defroster 10.1 kW
Air Conditioning 69 kW (23,543 Btu/hr)
ROPS Standards (1) ROPS for Operator meets ISO 3471:2008; for Trainer meets ISO 13459:2012
FOPS Standards FOPS for Operator meets ISO 3449:2005 Level II; for Trainer meets ISO 13459:2012 Level II
Note Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Dimensions
Height - Top of ROPS 5400 mm
Overall Length 12915 mm
Wheel Base 5700 mm
Rear Axle - Tail 3860 mm
Ground Clearance 1224 mm
Dump Clearance 1620 mm
Loading Height - Empty 6150 mm
Overall Height - Body Raised 13045 mm
Centerline Front Tire Width 5410 mm
Engine Guard Clearance 1210 mm
Overall Canopy Width 7770 mm
Outside Body Width 7770 mm
Inside Body Width 6705 mm
Front Canopy Height 6525 mm
Rear Axle - Clearance 1178 mm
Centerline of Rear Dual Tire Width 4625 mm
Overall Tire Width 6945 mm
Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)
Height - Top of ROPS 5400 mm
Overall Length 13350 mm
Wheel Base 5700 mm
Rear Axle - Tail 3985 mm
Ground Clearance 1224 mm
Dump Clearance 1315 mm
Loading Height - Empty 5840 mm
Overall Height - Body Raised 13100 mm
Centerline Front Tire Width 5410 mm
Engine Guard Clearance 1210 mm
Overall Canopy Width 7780 mm
Outside Body Width 7800 mm
Front Canopy Height 6335 mm
Rear Axle - Clearance 1180 mm
Centerline of Rear Dual Tire Width 4625 mm
Overall Tire Width 6945 mm

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