789 Next Generation
The Cat® 789 is designed to be the most efficient and productive truck on the market. If there was one word to describe the hundreds of improvements we’ve made in our next generation products, it would be “optimized.” We’ve optimized the operator experience, making the machine safer and more comfortable, and incorporating features that make their jobs easier, more consistent and more predictable. We’ve optimized electronics and connectivity, providing faster and easier access to data and streamlining technology integration. We’ve optimized machine health, with improved data analytics and new diagnostic capabilities. We’ve optimized maintenance, with modular features and consolidated components that make service faster and easier.
| Nominal Rated Payload | 193 t |
|---|---|
| Rated Gross Machine Weight | 324318 kg |
| Body Weight | 27400 kg |
| 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. |
| Top Speed - Loaded | 57.2 km/h |
|---|---|
| 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 - 6 | 57.2 km/h |
| Reverse | 11.8 km/h |
| Forward - 5 | 42.3 km/h |
| Engine Model | Cat® 3516E |
|---|---|
| Net Power - SAE J1349:2011 | 1473 kW |
| Emissions Rating | Fuel Optimized |
| Bore | 170 mm |
| Stroke | 215 mm |
| Displacement | 7.8 l |
| Rated Speed | 1650 r/min |
| Gross Power - SAE J1995:2014 | 1566 kW |
| 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. |
| Service Brakes | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
|---|---|
| Front Wet Disc Brake Surface Area | 81693 cm² |
| Rear - Wet Disc Brake Surface Area | 134590 cm² |
| Standards | (Service and Secondary) ISO 3450:2011 |
| Parking Brake | Four-corner, Multi-disc, Spring applied, Hydraulically Released |
| Fuel Tank (Tier 4) | 2500 l |
|---|---|
| Front Wheels - Each | 22 l |
| Brake Hoist System | 640 l |
| Brake Hoist System - Includes Tank | 1315 l |
| Steering System - Includes Tank | 175 l |
| Torque Converter - Transmission System - Including Sump | 209 l |
| Fuel Tank - Standard | 2500 l |
| Steering System | 160 l |
| Fuel Tank | 4546 l |
| Cooling System | 679 l |
| Crankcase | 291 l |
| Differentials | 610 l |
| Diesel Exhaust Fluid Tank | 233 l |
| Type | Twin, two-stage hydraulic cylinders with snubbing valve. |
|---|---|
| Pump Flow - High Idle | 403 l/min |
| Relief Valve Setting - Raise | 18950 kPa |
| Body Raise Time - High Idle | 14 s |
| Body Lower Time - Float | 16 s |
| Air Conditioning | (HFC - 134A refrigerant) 24,500 Btu/hr |
|---|---|
| Heater / Defroster | 33300 Btu/h |
| ROPS Standards (1) | The operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008. |
| 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. |
| Struck | 77 m3(101 yd3) |
|---|---|
| Heaped (SAE 2:1)* | 143 m3(187 yd2) |
| Note (1) | Consult your local Cat dealer for body recommendations |
| Type | Double reduction, planetary with full floating axles |
|---|---|
| Planetary Ratio | 10.83:1 |
| Differential Ratio | 2.35:1 |
| Total Reduction Ratio | 25.46:1 |
| Steering Standards | ISO 5010:2007 |
|---|---|
| Steer Angle | 36.07 ° |
| Type | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments |
|---|---|
| Effective Cylinder Stroke - Front | 104.65 mm |
| Effective Cylinder Stroke - Rear | 93.22 mm |
| Rear axle - Oscillation | +/- 5 degrees |
| Standard Tires | 37 R57 |
|---|---|
| Optional Tire | 42/90 R57 |
| Rims | 29” x 57” Rims |
| Optional Tires | 40 R57 |
| 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. |
| Front Axle - Empty | 50% |
|---|---|
| Rear Axle - Empty | 50% |
| Front Axle - Loaded | 33% |
| Rear Axle - Loaded | 67% |
| Height - Top of ROPS | 18.25 ft |
|---|---|
| Overall Length | 42.58 ft |
| Rear Axle - Tail | 12.67 ft |
| Dump Clearance | 5.17 ft |
| Loading Height - Empty | 20.17 ft |
| Overall Height - Body Raised | 37.83 ft |
| Centerline Front Tire Width | 17.75 ft |
| Outside Body Width | 23.33 ft |
| Inside Body Width | 22.67 ft |
| Front Canopy Height | 22.08 ft |
| Rear Axle - Clearance | 4.17 ft |
| Centerline of Rear Dual Tire Width | 15.42 ft |
| Overall Tire Width | 23.33 ft |
| Overall Body Length | 42.5 ft |
| Inside Body Length | 28.67 ft |
| Rear Sidewall Height | 3.33 ft |
| Inside Body Depth - Maximum | 10.08 ft |
| Operating Width | 25.67 ft |
| Engine Guard Clearance | 4.25 ft |
| Wheel Base | 18.67 ft |
| Overall Canopy Width | 25.5 ft |
| Ground Clearance | 4.25 ft |
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