CAT 789

MINING TRUCK

FEATURES
Caterpillar's comprehensive design ownership creates a total hauling Advanced Productivity Electronic Control Strategy Transmission: The
unit that delivers the best integration of high production, availability, APECS transmission provides a smoother ride for the operator, less
and payload in combination with low operating cost and long life. spillage on the haul road, and allows for faster acceleration.

The Cat® 789 continues the tradition of Caterpillar’s proven 789D Truck Built for the Future: Today’s 789 has the technology backbone to
with high productivity and lowest cost per ton. support the latest features available today for boosting productivity and
efficiency. Additional built-in capacity accommodates future innovation.
High Performance Engine: The proven Cat 3516E fuel optimized engine is
available worldwide at two power ratings, 2,100 HP and 1,900 HP. Performance and Emissions: The proven Cat 3516E engine offers
An optional engine meets U.S. EPA Tier 4 Final and EU Stage V emission flexibility both in terms of emission profiles and power ratings. An
standards and offers the perfect balance between power, robust optional engine meeting U.S. EPA Tier 4 Final and EU Stage V emission
design, and economy, also available at two power ratings. standards is available with the Cat Selective Catalytic Reduction system.
The standard power of 2,100 HP is there for faster cycle times, or an
Operator-Focused Environment: The Next Generation cab features the optional 1,900 HP is available to match other fleet performance.
Next Generation operator seat with GenTherm, improved storage, pass
through egress, automated temperature control, and an integrated Safety: Integrated Cat Detect system, 360-degree surround view, LED
transmission hoist control and jog dial for improved control while lighting, 600 mm (24 in) wide walkways, guarding of rotating components
providing the operator with a quieter, smoother, more comfortable ride. and hydraulic brake system with enhanced traction control system.
Optional Working at Heights and Powered Access Stairway.
Cutting Edge Connectivity: Increased machine connectivity via cellular
4G/LTE (Product Link™ Elite), MineStar™ Fleet, Detect, and Health Truck Bodies: Five different Caterpillar designed and built bodies (Dual
Equipment Insights, along with haul road analytics provide high-speed, Slope, High Performance, MSDII, X Body, Combi) are available to provide
quality data transfer for improved operator performance, maintenance, optimal performance and reliability in any application.
and machine life.
Tire Options: Tire life can be optimized for a specific mine site with a
Streamlined Serviceability: Modular HVAC and radiator, remote selection of optional tire sizes.
troubleshooting and flash updates, optional Cat Health Equipment
Insights, Electronic Operation and Maintenance Manual, and ground
level serviceability improve maintenance and reduce downtime.

TECHNICAL SPECIFICATIONS
Engine Weights—Approximate
Engine Model Cat® 3516E Rated Gross Machine Weight (RGMW)
Gross Power - SAE J1995:2014 1566 kW 2,100 HP 37 R57 Tires 324,318 kg 715,000 lb
Net Power - SAE J1349:2011 1473 kW 1,975 HP 40 R57 & 42/90 R57 Tires 324,318 kg 715,000 lb
Rated Speed 1,650 rpm Chassis Weight (CW) (LRC)
Emissions Rating Fuel Optimized 37 R57 Tires 103,657 kg 228,525 lb
Bore 170 mm 6.7 in 40 R57 & 42/90 R57 Tires 106,847 kg 235,557 lb
Stroke 215 mm 8.5 in Body Weight (BW) (HP Body) 27,400 kg 60,406 lb
Displacement 78.1 L 4,766 in3 Nominal Rated Payload (NRP)
• Net Power advertised is the power available at the flywheel when 37 R57 Tires 193 tonnes 213 ton
the engine is equipped with air intake system, exhaust system, and 40 R57 & 42/90 R57 Tires 190 tonnes 210 ton
alternator.
• Consult your tire manufacturer for maximum tire load
• Optional 1417 kW / 1,900 HP engine rating.
• Chassis weight with full fuel and fluids, standard and mandatory
• U.S. EPA Tier 4 Final / EU Stage V optional engine available for
attachments, hoist, body mounting group, rims, and tires.
applicable markets.
789 Mining Truck Specifications

Weight Distributions—Approximate Body Hoists

Front Axle - Empty 50% Twin, two-stage hydraulic cylinders with snubbing valve.
Rear Axle - Empty 50% Pump Flow - High Idle 403 L/min 106.5 gal/min
Front Axle - Loaded 33% Relief Valve Setting - Raise 18 950 kPa 2,749 psi
Rear Axle - Loaded 67% Body Raise Time - High Idle 14 sec
• Weight distributions optimized with Cat body Body Lower Time - Float 16 sec

Final Drives
Suspension
Double reduction, planetary with full floating axles
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and
Differential Ratio 2.35:1 bottom double shear clevis attachments
Planetary Ratio 10.83:1 Effective Cylinder Stroke - Front 104.65 mm 4.12 in
Total Reduction Ratio 25.46:1
Effective Cylinder Stroke - Rear 93.22 mm 3.67 in
Rear Axle Oscillation +/- 5 degrees
Transmission
Forward 1 12.6 km/h 7.8 mph
Service Refill Capacities
Forward 2 17.1 km/h 10.6 mph
Forward 3 23.1 km/h 14.4 mph Fuel Tank Standard 2500 L 550 gal
Forward 4 31.2 km/h 19.4 mph Fuel Tank Large 4546 L 1000 gal
Forward 5 42.3 km/h 26.3 mph Fuel Tank for Tier4/StageV Truck 2500 L 55 gal
Forward 6 57.2 km/h 35.5 mph Diesel Exhaust Fluid (DEF) Tank 233 L 62 gal
Reverse 11.8 km/h 7.3 mph Cooling System 679 L 180 gal
Top Speed - Loaded 57.2 km/h 35.5 mph Crankcase 291 L 77 gal
Front Wheels, Each 22 L 5.8 gal
Differentials & Final Drives 610 L 161 gal
Tires and Rims
Steering Tank 160 L 42 gal
37 R57 (standard) Steering System (Includes Tank) 175 L 46 gal
40 R57 (optional) Brake/Hoist Tank 640 L 169 gal
42/90 R57 (optional) Brake/Hoist System (Includes Tank) 1315 L 347 gal
29” x 57” Rims Torque Converter/Transmission System 209 L 55 gal
• Quick Change Rims optional (Includes Sump)
• Caterpillar recommends the customer evaluate all job conditions and
consult tire manufacturer for proper tire selection and TKPH (TMPH)
capabilities. Cab
Air Conditioning (HFC - 134A refrigerant) 24,500 Btu/hr
Braking System Heater / Defroster 33,300 Btu/hr

Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated • The operator sound pressure level, 77 dB(A) with direct drive and 75
dB(A) with optional clutch, tested to ISO 6396:2008.
Front Wet Disc Brake Surface Area 81 693 cm 2
12,662 in 2
• ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator
Rear Wet Disc Brake Surface Area 134 590 cm2 20,861 in2 and ISO 13459:2012 for Trainer.
Standards (Service and Secondary) ISO 3450:2011 • FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II
Parking Brake: Four-corner, Multi-disc, Spring applied, Hydraulically Released for Operator and ISO 13459:2012 Level II for Trainer.

Steering
Capacity—High Performance Body­—100% Fill Factor
Steer Angle 36.07 degrees
Struck 77 m3 101 yd3
Turning Diameter (ISO 7457:2009) 27.53 m 90.3 ft
Heaped (SAE 2:1) 143 m3 187 yd2
Steering Standards ISO 5010:2007
• Consult your local Cat dealer for body recommendations.

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 789 Mining Truck Specifications

Dimensions
• All dimensions are approximate.
• High Performance Body shown.
13

19

15

2 14
16
3 17
18
12
11
10

1 9

45°
7 8 20

5 6 21

4 22

1 Height to Top of ROPS 5550 mm 18 ft 3 in

2 Overall Body Length 12945 mm 42 ft 6 in
3 Inside Body Length 8730 mm 28 ft 8 in
4 Overall Length 12970 mm 42 ft 7 in
5 Wheelbase 5700 mm 18 ft 8 in
6 Rear Axle to Tail 3856 mm 12 ft 8 in
7 Ground Clearance 1304 mm 4 ft 3 in
8 Dump Clearance 1585 mm 5 ft 2 in
9 Loading Height – Empty 6147 mm 20 ft 2 in
10 Rear Sidewall Height 1010 mm 3 ft 4 in
11 Inside Body Depth – Maximum 3075 mm 10 ft 1 in
12 Overall Height – Body Raised 11534 mm 37 ft 10 in
13 Operating Width 7822 mm 25 ft 8 in
14 Centerline Front Tire Width 5410 mm 17 ft 9 in
15 Engine Guard Clearance 1290 mm 4 ft 3 in
16 Overall Canopy Width 7769 mm 25 ft 6 in
17 Outside Body Width 7123 mm 23 ft 4 in
18 Inside Body Width 6920 mm 22 ft 8 in
19 Front Canopy Height 6739 mm 22 ft 1 in
20 Rear Axle Clearance 1263 mm 4 ft 2 in
21 Centerline Rear Dual Tire Width 4695 mm 15 ft 5 in
22 Overall Tire Width 7120 mm 23 ft 4 in

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789 Mining Truck Specifications
Standard and Optional Equipment
Standard and optional equipment may vary. Consult your Cat dealer for details.
Standard Optional Standard Optional
ELECTRICAL Emergency stop 
24V electrical system, low maintenance batteries Cruise control 

(2) 93 amp-hour Operator speed coaching 
Alarm, backup  Entertainment radio ready:
Auxiliary rear work lights, (one) LH side  • Speakers 
Brushless alternator, 225 amp  • Radio Antenna (AM/FM/XM/DAB) 
Digital payload display  • Radio mounting provisions & 12V power supply 
LED payload indicator lamps  Fire suppression ready 
Workshop horn  Floor mat, multi-piece & replaceable 
Jump start/battery charge receptacle  Digital gauges and indicators panel:
Ground accessible power control box: • Critical oil and coolant temperatures 
• VIMSTM lamp  • Fuel and DEF level (if applicable) 
• Engine starter, transmission and battery • Engine system, brake and transmission fault
 
lockouts indicators
LED Lighting system: • Speedometer, Tachometer 
• Back-up and hazard lights  Operator selectable max. machine speed by rotary
• Curb lights, (one) RH side, (one) LH side 
 dial
• Turn signals (front and rear)  Heated mirrors, right and left 
• Engine compartment lights  PRNDL shift lever and body hoist control 
• Headlights with low-high beam selector  Interactive touchscreen vehicle information
• Ladder light and service deck lights  display:
• Stop/tail lights  • Day/night mode 
• Additional lighting package  • Action alarm 
• Body rear stop/tail lights & directional signal  • Configurable gauge display 
• Seat & park brake  Premium operator air suspension seat 
Operator door power window 
TRUCK BODIES Provision for customer accessory mounting 
Dual Slope body  Push button secure start 
High Peformance (HP) body  Retractable front visor 
MSDII body  ROPS cab, insulated/sound suppressed 
X body  Stairway and walkway access, 600 mm (24 in) 
Body specific side wall and tail extensions  Steering wheel, tiltable, telescopic 
Customizable body liner packages  Self-filling to windshield washer fluid from AC

Body heat exhaust  condensate
Rock ejectors Storage locations for operator gear 

Three point seat belt for operator seat 
FLUIDS Windshield wiper, intermittent control / washer 
Extended life coolant to –35° C (–30° F)  Unitized hydraulic powered HVAC with automatic

Antifreeze/coolant protects to –50° C (–58° F) temperature control
 Deluxe Cab: 
• Premium Plus, heated, cooled and ventilated
OPERATOR ENVIRONMENT operator seat
5V USB charging port  • Premium air suspension companion seat
12V auxiliary power connection  • Advanced cabin air filtration system
Cup holders  • Catwalk and handrails for rear cab access
Ethernet service port  • Companion door power window
Delayed engine shutdown  • Storage tray
Dome courtesy light and map lights 

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 789 Mining Truck Specifications
Standard and Optional Equipment (continued)
Standard and optional equipment may vary. Consult your Cat dealer for details.
Standard Optional Standard Optional
POWER TRAIN OTHER EQUIPMENT
37R57 Standard rims  Automatic lubrication system 
37R57 Quick change rims  Auxiliary “buddy” dumping quick connect 
40R57 Standard rims  Auxiliary connection ‘user defined shutdown’ 
40R57 Quick change rims  Auxiliary steering quick connect (towing) 
Cat 3516E Engine: Body heat exhaust 
• Automatic engine and DEF thermal  Bumper towing – center pin kit 
management (if applicable) Cold weather start (block heater) 
• Automatic low voltage idle management  Communication arrangement – Minestar™ radio 
• Air cleaner with precleaner (two)  Electronic Operation and Maintenance Manual in touchscreen 
• Turbocharging (four) with air-to-air aftercooler  Fast fill fuel and DEF remote fill system 
• Mechanical Electronic Unit Injector  Fire extinguisher, portable 
(MEUI™-A) fuel system
Fuel heater, fuel water separator 
• Electric starter (no air) with 93-amp hour 
batteries (four), electric horn and automatic Fuel tank mud guard 
lubrication system Gauge, brake wear indicator 
• Turbine air starter with 93-amp hour Ground accessible fluid service center, hydraulic and coolant 
batteries (two), air tank, air horn and  Guards for rotating components 
automatic lubrication system
Hub odometer, kilometers 
• Variable speed fan drive 
Hydraulic Filters, 1,000 hours 
• Engine pre-lubrication system 
Powered access stairway 
Hydraulic braking system:
Rim diffuser 
Four channel independent wheel braking control 
Secondary steering (automatic) 
Anti Lock Braking (ABS) / Dynamic Stability
 Tie off points 
Control (DSC)
• Automatic retarder control (ARC), adjustable  Tow hooks (front) and tow pin (rear) 
and automatic Sight glasses for hydraulic oils 
• Brake release motor (towing)  S∙O∙S SM
ports 
• Engine over speed protection  Wheel chocks 
• Extended life brake disc material  Wireless Electronic Technician (ET) 
• Hill start assist/anti roll back strategy  Working at heights protection 
• Oil-cooled, multi-disc (front and rear) –  Vital Information Management System (VIMS) 
service, retarding, parking, secondary Mudflaps 
• Park brake integrated with gear selector 
CAT TECHNOLOGY PRODUCTS
®
Transmission:
360 degree surround view 
• Six-speed, automatic power shift with 
Product LinkTM Elite with cellular radio 
Electronic Clutch Pressure Control (ECPC)
• Advanced Productivity Electronic Control Product LinkTM Elite with cellular and satellite radio 

Strategy (APECS) Connectivity bundle (includes: wireless operator ID, bluetooth

• Body-up reverse neutralizer  key FOB to start)

• Body-up shift inhibitor Cyber security 


• Downshift/reverse shift inhibitor Driver Safety System (DSS) 4.0 ready 

• Directional shift management Integrated object detection system with touchscreen display 

• Engine pre-lubrication system Minestar GPS 

• Enhanced traction control system Minestar communication group (enables: Minestar Fleet, Aux) 

• Programmable top speed Oil Renewal System (ORS) (non-Tier 4) 

• Oil level sensor Productivity bundle (includes: AutoHoist, crusher mode, dump
 
control, speed coaching)
• Neutral coast inhibitor 
Road Analysis Control (RAC) 
Lock-up torque converter 
Tire Payload Monitoring System 2 (TPMS 2) 
Rear axle continuous lubrication/filtration 
Remote flash software and troubleshooting 
Rear axle cooler 
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789 Mining Truck Specifications

789 RIMPULL
To determine gradeability performance: Read from gross weight down to the percent of total resistance. Total resistance equals
actual percent grade plus 1% for each 10 kg/t (20 lb/ton) of rolling resistance. From this weight-resistance point, read horizontally
to the curve with the highest obtainable gear, then down to maximum speed. Usable rimpull will depend upon traction available and
weight on drive wheels. The following charts are based on these conditions: 32° C (90° F) ambient temperature, at sea level, with
37R57 tires.

TORQUE CONVERTER DRIVE

DIRECT DRIVE

E – Nominal Empty Machine Weight

L – Rated GMW 324, 318 kg (715,000 lbs)

1 – 1st Gear
2 – 2nd Gear
3 – 3rd Gear
4 – 4th Gear
5 – 5th Gear
6 – 6th Gear

789 RETARDING CONTINUOUS AT SEA LEVEL

NOTE: Select the proper gear to maintain engine rpm at the highest possible level, without overspeeding the engine. If cooling oil
overheats, reduce ground speed to allow transmission to shift to the next lower speed range.

TORQUE CONVERTER DRIVE

DIRECT DRIVE

E – Nominal Empty Machine Weight

L – Rated GMW 324, 318 kg (715,000 lbs)

1 – 1st Gear
2 – 2nd Gear
3 – 3rd Gear
4 – 4th Gear
5 – 5th Gear
6 – 6th Gear

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 789 Mining Truck Specifications

789 RETARDING – 450m

TORQUE CONVERTER DRIVE

DIRECT DRIVE

E – Nominal Empty Machine Weight

L – Rated GMW 324, 318 kg (715,000 lbs)

1 – 1st Gear
2 – 2nd Gear
3 – 3rd Gear
4 – 4th Gear
5 – 5th Gear
6 – 6th Gear

789 RETARDING – 1500m

TORQUE CONVERTER DRIVE

DIRECT DRIVE

E – Nominal Empty Machine Weight

L – Rated GMW 324, 318 kg (715,000 lbs)

1 – 1st Gear
2 – 2nd Gear
3 – 3rd Gear
4 – 4th Gear
5 – 5th Gear
6 – 6th Gear

For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.cat.com AEXJ0119-00 (02-2022)
© 2022 Caterpillar. All rights reserved. Build Number: 08A
(Global)
Materials and specifications are subject to change without notice. Featured machines in photos may include additional equipment.
See your Cat dealer for available options.

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