PRODUCTIVITY
SAFETY
OPERATOR COMFORT
OPERATOR EFFICIENCY & PRODUCTIVITY
SERVICEABILITY
DURABILITY AND LONG LIFE
CAT BODIES
SUSTAINABILITY
VERSATILITY
TECHNOLOGY SOLUTIONS
- The 789 delivers a faster speed on grade than competitive trucks thanks to the efficient 3516E 16-cylinder engine and mechanical drivetrain.
- Expanded tire options allow mines to take advantage of higher speeds, particularly in flat, long-haul, high-speed applications.
- The Advanced Power Electronic Control Strategy (APECS) enables faster cycle times and faster acceleration thanks to more continuous torque and rimpull.
- The 789 has an empty machine weight advantage, allowing it to haul more with every load, delivering a cost per ton advantage over competitive trucks.
- Productivity-enhancing features such as Hill Start Assist with Anti-Rollback, Enhanced Traction Control, Dynamic Stability Control (DSC), Anti-lock Brake System (ABS), Machine Speed Limiting and Cruise Control improve machine responsiveness and controllability while improving cycle times and reducing operator fatigue.
- Wide, slip-resistant surfaces and hand rails, plus an optional powered access ladder, improve access and egress.
- Superior control is delivered by a patented braking system that provides immediate, fade-resistant braking and retarding.
- Visibility is enhanced by wide-angle mirrors plus an optional 360-degree Surround View camera, which offers a bird’s-eye view.
- The Cat MineStar™ Object Detection system combines radar and camera systems to warn operators about light vehicles or stationary hazards within the immediate vicinity of their machines.
- The optional Driver Safety System alerts the operator if fatigue or distraction are detected.
- The cab provides 34% more operator space than D-Series models. It’s 17% wider and offers 11% more legroom and 19% more shoulder room.
- Controls, levers and switches are positioned for ease of use.
- With 40% less Sound Pressure Level (SPL), automated temperature control and cab filtration, operators enjoy a safer and more comfortable environment.
- A walkthrough cab with fully adjustable center console, easy-to-adjust seat and increased leg room make the cab ideal for operators of all sizes.
- The next generation seat is four-point-restraint ready and incorporates features like thigh tilt and extensions, air adjustable side and lumbar bolsters, and heated and cooled cushions.
- Higher resolution displays improve access to information. Machine data, controls and guidance information are consolidated onto two 10-inch screens.
- The optional Auto Hoist feature automatically raises the body and controls engine speed, simplifying operation and minimizing cycle times.
- Speed coaching gives operators real-time feedback on how to operate the truck to maximize its productivity.
- The payload monitoring system comes with more accurate measurements, providing immediate feedback to the operator.
- The new modular HVAC (heating, ventilation and air conditioning) system improves reliability and consolidates components so the entire system can be removed and replaced quickly.
- A modular radiator reduces engine removal and installation time and enables rebuilds to be completed off the truck.
- New remote flash and remote troubleshooting capabilities provide immediate access to the latest software updates and make it possible to troubleshoot the machine remotely.
- Time spent on regular maintenance procedures is reduced thanks to features such as extended service intervals; ground-level access to tanks, filters, drains and engine shutdown; easier access to daily service points as well as major components; a maintenance platform with access to the engine; and optional fast-fill service center.
- A 100% airless electric start option eliminates air system maintenance from the machine and improves uptime.
- The 789 frame uses a box-section design, incorporating two forgings and 21 castings in high-stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight. The mild steel frame provides flexibility, durability and resistance to impact loads.
- Resiliently mounted to the main frame to reduce vibration and sound, the integral ROPS is designed as an extension of the truck frame.
- Component life is enhanced thanks to the standard rear-axle continuous filtration feature. Cleaner oil helps promote lubrication that leads to longer life
- The frame, powertrain, engine and components are built to be rebuilt — delivering multiple lives of like-new performance at a fraction-of-new price.
- 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 chassis life.
- The High Performance (HP) body features a lightweight, simplified and durable design that provides complete front machine coverage and extended overhead protection.
- Available in several sizes, the MSD II body is ideal for mature mines with good operational and maintenance practices. It can be lined or unlined, with a site-specific body designed to maximize performance.
- Intended for tough applications including greenfield sites and contracting mines, the Dual Slope body provides excellent load retention, maintains a low center of gravity with optimum load distribution and reduces shock loading.
- The X Body incorporates the latest structural designs and offers more volume at a lower weight. It uses the Cat Mine Specific Design to create a body that is properly sized to meet the specific requirements of heavy-duty applications.
- The 789 is designed to use less fuel, which reduces engine emissions, and there is zero fuel burn during retarding. The Tier 4 Final engine reduces NOx and particulate matter.
- The Cat 3516E provides emission choices: fuel-optimized engine for less regulated countries or optional engine compliant to U.S. EPA Tier 4 Final / EU Stage V emissions standards.
- The 789 engine is compatible with diesel fuel blended with lower-carbon intensity fuels such as biofuels and renewable fuels.
- Features like oil renewal systems, continuous rear axle filtration, extended life filters and longer maintenance intervals decrease the amount of waste contributed to the environment.
- By rebuilding machines and components, the Cat Rebuild and Cat Reman programs preserve raw materials, conserve energy and reduce emissions.
- The Cat 3516E engine has proven its ability to deliver high power and reliability in the most demanding mining applications.
- The mechanical drive powertrain and power shift transmission provide unmatched efficiency and control on steep grades, in poor underfoot conditions and on haul roads with high rolling resistance.
- Application-specific capabilities are available for extreme ambient conditions and high-altitude applications.
- The 789 lets you select the tire offering that best matches your application, with a larger tire for flat, long, high-speed applications. The frame is designed to maintain the same turning diameter while accommodating larger tires.
- The 789 is available in two options to meet the emissions standards. The optional Tier 4 Final engine meets the strictest standards while the LRC engine is available in those countries that are less regulated.
- MineStar Fleet is a fleet monitoring system that can be used to measure, manage and maximize the overall hauling operation.
- Additional Detect offerings include Awareness, which can provide warnings and the in-cab Driver Safety System, which intervenes when it detects fatigue or distraction.
- Machine health and condition monitoring solutions enable a proactive approach to maintenance.
Weights - Approximate
| Nominal Rated Payload |
193 t |
213 ton (US) |
| Rated Gross Machine Weight |
324318 kg |
715000 lb |
| Body Weight |
27400 kg |
60406 lb |
| Note (1) |
Consult your tire manufacturer for maximum tire load |
| Note (2) |
Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires. |
Engine
| Gross Power - SAE J1995:2014 |
1566 kW |
2100 hp |
| Engine Model |
Cat® 3516E |
| Net Power - SAE J1349:2011 |
1473 kW |
1975 hp |
| Rated Speed |
1650 r/min |
1650 r/min |
| Emissions Rating |
Fuel Optimized |
| Bore |
170 mm |
6.7 in |
| Stroke |
215 mm |
8.5 in |
| Displacement |
7.8 l |
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. |
| Note (2) |
Optional 1417 kW / 1,900 HP engine rating. |
| Note (3) |
U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets. |
Weight Distributions - Approximate
| Front Axle - Empty |
50% |
| Rear Axle - Loaded |
67% |
| Rear Axle - Empty |
50% |
| Front Axle - Loaded |
33% |
Final Drives
| Planetary Ratio |
10.83:1 |
| Total Reduction Ratio |
25.46:1 |
| Type |
Double reduction, planetary with full floating axles |
| Differential Ratio |
2.35:1 |
Transmission
| Forward - 1 |
12.6 km/h |
7.8 mile/h |
| Forward - 2 |
17.1 km/h |
10.6 mile/h |
| Forward - 3 |
23.1 km/h |
14.4 mile/h |
| Forward - 4 |
31.2 km/h |
19.4 mile/h |
| Forward - 5 |
42.3 km/h |
26.3 mile/h |
| Forward - 6 |
57.2 km/h |
35.5 mile/h |
| Reverse |
11.8 km/h |
7.3 mile/h |
| Top Speed - Loaded |
57.2 km/h |
35.5 mile/h |
Tires
| Standard Tires |
37 R57 |
| Optional Tires |
40 R57 |
| Optional Tire |
42/90 R57 |
| Rims |
29” x 57” Rims |
| 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. |
Braking System
| Service Brakes |
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
| Front Wet Disc Brake Surface Area |
81693 cm² |
12662 in² |
| Rear - Wet Disc Brake Surface Area |
134590 cm² |
20861 in² |
| Standards |
(Service and Secondary) ISO 3450:2011 |
| Parking Brake |
Four-corner, Multi-disc, Spring applied, Hydraulically Released |
Capacity - HP Body - 100% Fill Factor
| Struck |
77 m3(101 yd3) |
| Heaped (SAE 2:1)* |
143 m3(187 yd2) |
| Note (1) |
Consult your local Cat dealer for body recommendations |
Body Hoists
| Type |
Twin, two-stage hydraulic cylinders with snubbing valve. |
| Pump Flow - High Idle |
403 l/min |
106.5 gal/min |
| Relief Valve Setting - Raise |
18950 kPa |
2749 psi |
| Body Raise Time - High Idle |
14 s |
14 s |
| Body Lower Time - Float |
16 s |
16 s |
Suspension
| Type |
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front |
104.65 mm |
4.12 in |
| Effective Cylinder Stroke - Rear |
93.22 mm |
3.67 in |
| Rear axle - Oscillation |
+/- 5 degrees |
Service Refill Capacities
| Fuel Tank - Standard |
2500 l |
550 gal (US) |
| Fuel Tank |
4546 l |
1000 gal (US) |
| Fuel Tank (Tier 4) |
2500 l |
55 gal (US) |
| Diesel Exhaust Fluid Tank |
233 l |
62 gal (US) |
| Cooling System |
679 l |
180 gal (US) |
| Crankcase |
291 l |
77 gal (US) |
| Front Wheels - Each |
22 l |
5.8 gal (US) |
| Differentials |
610 l |
161 gal (US) |
| Steering System |
160 l |
42 gal (US) |
| Steering System - Includes Tank |
175 l |
46 gal (US) |
| Brake Hoist System |
640 l |
169 gal (US) |
| Brake Hoist System - Includes Tank |
1315 l |
347 gal (US) |
| Torque Converter - Transmission System - Including Sump |
209 l |
55 gal (US) |
Cab
| Air Conditioning |
(HFC - 134A refrigerant) 24,500 Btu/hr |
| Heater / Defroster |
33300 Btu/h |
33300 Btu/h |
| ROPS Standards (2) |
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 Level II for Operator and ISO 13459:2012 Level II for Trainer. |
Steering
| Steer Angle |
36.07 ° |
36.07 ° |
| Steering Standards |
ISO 5010:2019 |
Dimensions (Approximate)
| Height - Top of ROPS |
18.25 ft |
5550 mm |
| Overall Body Length |
42.5 ft |
12945 mm |
| Inside Body Length |
28.67 ft |
8730 mm |
| Overall Length |
42.58 ft |
12970 mm |
| Wheel Base |
18.67 ft |
57000 mm |
| Rear Axle - Tail |
12.67 ft |
3856 mm |
| Ground Clearance |
4.25 ft |
1304 mm |
| Dump Clearance |
5.17 ft |
1585 mm |
| Loading Height - Empty |
20.17 ft |
6147 mm |
| Rear Sidewall Height |
3.33 ft |
1010 mm |
| Inside Body Depth - Maximum |
10.08 ft |
3075 mm |
| Overall Height - Body Raised |
37.83 ft |
11534 mm |
| Operating Width |
25.67 ft |
7822 mm |
| Centerline Front Tire Width |
17.75 ft |
5410 mm |
| Engine Guard Clearance |
4.25 ft |
1290 mm |
| Overall Canopy Width |
25.5 ft |
7769 mm |
| Outside Body Width |
23.33 ft |
7123 mm |
| Inside Body Width |
22.67 ft |
6920 mm |
| Front Canopy Height |
22.08 ft |
6739 mm |
| Rear Axle - Clearance |
4.17 ft |
1263 mm |
| Centerline of Rear Dual Tire Width |
15.42 ft |
4695 mm |
| Overall Tire Width |
23.33 ft |
7120 mm |
Sound
| Sound Standards (1) |
Operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008. |
