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775 Off-Highway Truck
772 (07) Off-Highway Truck
789 Next Generation

Operating Specifications

Nominal Payload Class (100%) 70.5 ton (US) 51.6 ton (US) -
Top Speed - Loaded 41.6 mile/h 49.2 mile/h -
Maximum Working Payload (110%) 77.5 ton (US) - -
Target Payload (100%) 70.5 ton (US) - -
Maximum Allowable Payload (120%)* 84.6 ton (US) - -
Note (2) * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. - -
Note (1) Capacity with Dual Slope body – no liner. - -
Body Capacity - SAE 2:1 55.23 yd³ 40.8 yd³ -
Maximum Payload Class (110%) - 56.7 ton (US) -
Target Payload Capacity - 51.6 ton (US) -
Not to Exceed Payload (120%) - 61.9 ton (US) -
Body Capacity (SAE 2:1)** - 40.8 yd³ -

Engine

Engine Model Cat® C27 Cat® C18 Cat® 3516E
Rated Engine Speed 1800 r/min 1700 r/min -
Gross Power - SAE J1995:2014 825 hp 605 hp 2100 hp
Net Power - SAE J1349:2011 768 hp 550 hp 1975 hp
Net Power - 80/1269/EEC 775 hp - -
Net Power - ISO 9249 775 hp 550 hp -
Bore 5.4 in 5.7 in 6.7 in
Stroke 6 in 7.2 in 8.5 in
Displacement 1648 in³ 1105 in³ 4766 in³
Engine Power - ISO 14396 812 hp 598 hp -
Note (2) Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F). - Optional 1417 kW / 1,900 HP engine rating.
Net Torque 3148 ft-lb - -
Peak Torque - Speed 1200 r/min - -
Note (1) Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. - Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.
Note (3) No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. - U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets.
Emissions Meets EU Stage V emission standards. - -
Number of Cylinders - 6 -
Net Torque - SAE J1349 - 2221 ft-lb -
Rated Speed - - 1650 r/min
Emissions Rating - - Fuel Optimized

Capacity - Dual Slope - 100% Fill Factor

Struck 42.7 yd³ 31.3 yd³ -
Heaped (SAE 2:1)* 55.5 yd³ - -
Note (1) Contact your local Cat dealer for body recommendation. - -
Note (2) *ISO 6483:1980 - -
Heaped 2:1 (SAE) - 40.8 yd³ -

Capacity - Flat Floor - 100% Fill Factor

Struck 42.2 yd³ 31.3 yd³ -
Heaped (SAE 2:1)* 55.2 yd³ - -
Note (1) Contact your local Cat dealer for body recommendation. - -
Note (2) *ISO 6483:1980 - -
Heaped 2:1 (SAE) - 40.9 yd³ -

Weight Distributions - Approximate

Front Axle - Empty 50 % 51.4 % 50%
Front Axle - Loaded 34 % 34.2 % 33%
Rear Axle - Empty 50 % 48.6 % 50%
Rear Axle - Loaded 66 % 65.8 % 67%

Transmission

Forward - 1 6.6 mile/h 8 mile/h 7.8 mile/h
Forward - 2 9.3 mile/h 10.9 mile/h 10.6 mile/h
Forward - 3 12.6 mile/h 14.8 mile/h 14.4 mile/h
Forward - 4 16.8 mile/h 19.8 mile/h 19.4 mile/h
Forward - 5 22.8 mile/h 26.9 mile/h 26.3 mile/h
Forward - 6 30.7 mile/h 36.2 mile/h 35.5 mile/h
Forward - 7 41.6 mile/h 49.2 mile/h -
Reverse 8.7 mile/h 10.4 mile/h 7.3 mile/h
Note Maximum travel speeds with standard 24.00R35 (E4) tires. - -
Top Speed - Loaded - - 35.5 mile/h

Final Drives

Differential Ratio 3.64:1 2.74:1 2.35:1
Planetary Ratio 4.80:1 4.80:1 10.83:1
Total Reduction Ratio 17.49:1 13.14:1 25.46:1
Type - - Double reduction, planetary with full floating axles

Brakes

Brake Surface - Front 257 in² 216 in² -
Brake Surface - Rear 9497 in² 7794 in² -
Brake Standards ISO 3450:2011 ISO 3450:2011 -

Service Refill Capacities

Fuel Tank 210 gal (US) 140 gal (US) 1000 gal (US)
Cooling System 45 gal (US) 33 gal (US) 180 gal (US)
Differential - Final Drives 38 gal (US) 47 gal (US) -
Steering Tank 9.5 gal (US) 14.5 gal (US) -
Steering System - Including Tank 14 gal (US) 23 gal (US) -
Brake Hoist System 85 gal (US) 60 gal (US) 169 gal (US)
Torque Converter - Transmission System - LRC 16 gal (US) - -
Crankcase 24 gal (US) 17 gal (US) 77 gal (US)
Brake/Hoist Hydraulic Tank 46.5 gal (US) 38 gal (US) -
Torque Converter - Transmission System - HRC 18 gal (US) - -
Torque Converter - Transmission System - 17 gal (US) -
DEF Tank - 6 gal (US) -
Fuel Tank - Standard - - 550 gal (US)
Fuel Tank (Tier 4) - - 55 gal (US)
Diesel Exhaust Fluid Tank - - 62 gal (US)
Front Wheels - Each - - 5.8 gal (US)
Differentials - - 161 gal (US)
Steering System - - 42 gal (US)
Steering System - Includes Tank - - 46 gal (US)
Brake Hoist System - Includes Tank - - 347 gal (US)
Torque Converter - Transmission System - Including Sump - - 55 gal (US)

Body Hoists

Pump Flow - High Idle 118 gal/min 112 gal/min 106.5 gal/min
Relief Valve Setting - Raise 2502 psi 2750 psi 2749 psi
Relief Valve Setting - Lower 500 psi 500 psi -
Body Raise Time - High Idle 10 s 8 s 14 s
Body Lower Time - Float 14 s 10 s 16 s
Body Power Down - High Idle 14 s 10 s -
Type - - Twin, two-stage hydraulic cylinders with snubbing valve.

Weights - Approximate

Maximum Gross Vehicle Weight 246503 lb - -
Target Gross Machine Operating Weight - 181000 lb -
Chassis Weight - 59223 lb -
Body Weight - 17306 lb 60406 lb
Target Gross Machine Weight - 181000 lb -
Nominal Rated Payload - - 213 ton (US)
Rated Gross Machine Weight - - 715000 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.

Suspension

Empty Loaded Cylinder Stroke Front 9.2 in 9.2 in -
Rear Axle - Oscillation 8.1° - -
Empty Loaded Cylinder Stroke Rear 5.8 in 5.8 in -
Rear axle - Oscillation - 8.9 ° +/- 5 degrees
Type - - Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments
Effective Cylinder Stroke - Front - - 4.12 in
Effective Cylinder Stroke - Rear - - 3.67 in

Tires

Note (2) Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. - Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.
Note (1) Productive capabilities of the 775G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. - Quick Change Rims optional
Standard Tire 24.00R35 (E4) 21.00R33 (E4) -
Standard Tires - - 37 R57
Optional Tires - - 40 R57
Optional Tire - - 42/90 R57
Rims - - 29” x 57” Rims

ROPS

FOPS Standards Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria. -
ROPS Standards Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. -

Sound

Sound Standards (1) The operator Equivalent Sound Pressure Level (Leq) is 76 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with t Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. Operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008.
Sound Standards (2) The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 86 dB(A). Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 118 dB(A). -
Sound Standards (3) 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. Operator Equivalent Sound Pressure Level (Leq) is 78 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab. -

Steering

Turning Diameter - Front 77.1 ft 57.7 ft -
Steering Standards ISO 5010:2007 ISO 5010:2007 ISO 5010:2019
Steer Angle 31 ° 40.5 ° 36.07 °
Turning Circle - Clearance Diameter 85.6 ft 66.6 ft -

Sustainability

Recyclability 98% - -

Dimensions

Height - Top of ROPS - 12.8 ft -
Inside Body Depth - Maximum - 5.7 ft -
Overall Body Length - 26.8 ft -
Inside Body Length - 19 ft -
Overall Length - 28.9 ft -
Wheel Base - 13 ft -
Rear Axle - Tail - 9.5 ft -
Ground Clearance - 1.6 ft -
Dump Clearance - 1.5 ft -
Loading Height - Empty - 11.6 ft -
Overall Height - Body Raised - 27.1 ft -
Operating Width - 15.7 ft -
Centerline Front Tire Width - 10.4 ft -
Engine Guard Clearance - 2 ft -
Outside Body Width - 12.9 ft -
Inside Body Width - 11.9 ft -
Front Canopy Height - 13.7 ft -
Rear Axle - Clearance - 1.9 ft -
Centerline of Rear Dual Tire Width - 8.7 ft -
Overall Tire Width - 12.9 ft -

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

Capacity - HP Body - 100% Fill Factor

Struck - - 77 m3(101 yd3)
Heaped (SAE 2:1)* - - 187
Note (1) - - Consult your local Cat dealer for body recommendations

Cab

Air Conditioning - - (HFC - 134A refrigerant) 24,500 Btu/hr
Heater / Defroster - - 33300 Btu/h
FOPS Standards - - FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
ROPS Standards (2) - - ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.

Dimensions (Approximate)

Height - Top of ROPS - - 5550 mm
Overall Body Length - - 12945 mm
Inside Body Length - - 8730 mm
Overall Length - - 12970 mm
Wheel Base - - 57000 mm
Rear Axle - Tail - - 3856 mm
Ground Clearance - - 1304 mm
Dump Clearance - - 1585 mm
Loading Height - Empty - - 6147 mm
Rear Sidewall Height - - 1010 mm
Inside Body Depth - Maximum - - 3075 mm
Overall Height - Body Raised - - 11534 mm
Operating Width - - 7822 mm
Centerline Front Tire Width - - 5410 mm
Engine Guard Clearance - - 1290 mm
Overall Canopy Width - - 7769 mm
Outside Body Width - - 7123 mm
Inside Body Width - - 6920 mm
Front Canopy Height - - 6739 mm
Rear Axle - Clearance - - 1263 mm
Centerline of Rear Dual Tire Width - - 4695 mm
Overall Tire Width - - 7120 mm
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