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Operating Specifications
	775 Off-Highway Truck View Product	770 Off-Highway Truck View Product Remove	775G Off-Highway Truck Bare Chassis View Product Remove	789 Next Generation View Product Remove	794 AC Mining Truck View Product Remove
Nominal Payload Class (100%)	70.5 ton (US)	42.1 ton (US)	-	-	-
Top Speed - Loaded	41.6 mile/h	45.8 mile/h	-	-	-
Maximum Working Payload (110%)	77.5 ton (US)	46.3 ton (US)	-	-	-
Target Payload (100%)	70.5 ton (US)	42.1 ton (US)	-	-	-
Maximum Allowable Payload (120%)*	84.6 ton (US)	50.5 ton (US)	-	-	-
Note (2)	* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.	Target payload and capacity based on Dual Slope body with no liner. Attachment selection will affect payload and maximum gross machine operating weight.	-	-	-
Note (1)	Capacity with Dual Slope body – no liner.	*Refer to Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.	-	-	-
Body Capacity - SAE 2:1	55.23 yd³	32.9 yd³	-	-	-
Nominal Water Tank Capacity	-	-	15000 gal (US)	-	-
Engine
Engine Model	Cat® C27	Cat® C15	Cat® C27	Cat® 3516E	Cat® C175-16
Rated Engine Speed	1800 r/min	1700 r/min	-	-	-
Gross Power - SAE J1995:2014	825 hp	515 hp	-	2100 hp	-
Net Power - SAE J1349:2011	768 hp	477 hp	-	1975 hp	-
Net Power - 80/1269/EEC	775 hp	489 hp	-	-	-
Net Power - ISO 9249	775 hp	477 hp	-	-	-
Bore	5.4 in	5.4 in	5.4 in	6.7 in	6.9 in
Stroke	6 in	6.7 in	6 in	8.5 in	8.7 in
Displacement	1648 in³	927.6 in³	1648 in³	4766 in³	5187 in³
Engine Power - ISO 14396	812 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).	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.	Tier 4 / EU Stage V option available for regions that require these emissions standards.
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.	Power rating applies at 1,700 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.	Contact factory for high altitude configuration.
Note (3)	No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.	No engine derating required up to 3000 m (9,843 ft) altitude.	-	U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets.	Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW)
Emissions	Meets EU Stage V emission standards.	Meets U.S. EPA Tier 4 and EU Stage V emission standards.	-	-	-
Net Power - ISO 14396	-	508 hp	-	-	-
Net Torque - SAE J1349	-	1834 ft·lbf	-	-	-
Number of Cylinders	-	6	-	-	-
Note (4)	-	Meets Japan Small Volume Exemption.	-	-	-
Gross Power - SAE J1995	-	-	825 hp	-	3500 hp
Rated Net Power - SAE J1349	-	-	683 hp	-	-
Note	-	-	Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. Specifications shown are for LRC model.	-	-
Rated Speed	-	-	-	1650 r/min	1800 r/min
Emissions Rating	-	-	-	Fuel Optimized	Fuel Optimized
Standard Gross Power - SAE J1995	-	-	-	-	3500 hp
Optional Gross Power - SAE J1995	-	-	-	-	3100 hp
Optional Gross Power - SAE J1995 (Option 2)	-	-	-	-	2750 hp
Net Power - SAE J1349	-	-	-	-	3405 hp
Capacity - Dual Slope - 100% Fill Factor
Struck	42.7 yd³	23.01 yd³	-	-	-
Heaped (SAE 2:1)*	55.5 yd³	32.9 yd³	-	-	-
Note (1)	Contact your local Cat dealer for body recommendation.	Contact your local Cat dealer for body recommendation.	-	-	-
Note (2)	*ISO 6483:1980	*ISO 6483:1980.	-	-	-
Capacity - Flat Floor - 100% Fill Factor
Struck	42.2 yd³	23.01 yd³	-	-	-
Heaped (SAE 2:1)*	55.2 yd³	32.9 yd³	-	-	-
Note (1)	Contact your local Cat dealer for body recommendation.	Contact your local Cat dealer for body recommendation.	-	-	-
Note (2)	*ISO 6483:1980	*ISO 6483:1980.	-	-	-
Weight Distributions - Approximate
Front Axle - Empty	50 %	49 %	-	50%	49 %
Front Axle - Loaded	34 %	34 %	-	33%	33 %
Rear Axle - Empty	50 %	51 %	-	50%	51 %
Rear Axle - Loaded	66 %	66 %	-	67%	67 %
Transmission
Forward - 1	6.6 mile/h	7.4 mile/h	6.6 mile/h	7.8 mile/h	-
Forward - 2	9.3 mile/h	10.1 mile/h	9.3 mile/h	10.6 mile/h	-
Forward - 3	12.6 mile/h	13.8 mile/h	12.6 mile/h	14.4 mile/h	-
Forward - 4	16.8 mile/h	18.5 mile/h	16.8 mile/h	19.4 mile/h	-
Forward - 5	22.8 mile/h	25.1 mile/h	22.8 mile/h	26.3 mile/h	-
Forward - 6	30.7 mile/h	33.8 mile/h	30.7 mile/h	35.5 mile/h	-
Forward - 7	41.6 mile/h	45.8 mile/h	41.6 mile/h	-	-
Reverse	8.7 mile/h	8.8 mile/h	8.7 mile/h	7.3 mile/h	-
Note	Maximum travel speeds with standard 24.00R35 (E4) tires.	Maximum travel speeds with standard 18.00R33 (E4) tires.	Maximum travel speeds with standard 24.00R35 (E4) tires	-	-
Top Speed - Loaded	-	-	-	35.5 mile/h	-
Final Drives
Differential Ratio	3.64:1	1.92:1	-	2.35:1	-
Planetary Ratio	4.80:1	4.80:1	-	10.83:1	-
Total Reduction Ratio	17.49:1	9.26:1	-	25.46:1	35:01:00
Type	-	-	-	Double reduction, planetary with full floating axles	-
Brakes
Brake Surface - Front	257 in²	216 in²	257 in²	-	-
Brake Surface - Rear	9497 in²	6235 in²	9497 in²	-	-
Brake Standards	ISO 3450:2011	ISO 3450:2011	-	-	-
Note	-	Target gross machine operating weight is 71 214 kg (157,000 lb).	-	-	-
Service Refill Capacities
Fuel Tank	210 gal (US)	140 gal (US)	-	1000 gal (US)	1300 gal (US)
Cooling System	45 gal (US)	33 gal (US)	45 gal (US)	180 gal (US)	211 gal (US)
Differential - Final Drives	38 gal (US)	47 gal (US)	38 gal (US)	-	-
Steering Tank	9.5 gal (US)	14.5 gal (US)	-	-	-
Steering System - Including Tank	14 gal (US)	23 gal (US)	14 gal (US)	-	-
Brake Hoist System	85 gal (US)	60 gal (US)	85 gal (US)	169 gal (US)	-
Torque Converter - Transmission System - LRC	16 gal (US)	-	-	-	-
Crankcase	24 gal (US)	17 gal (US)	24 gal (US)	77 gal (US)	82 gal (US)
Brake/Hoist Hydraulic Tank	46.5 gal (US)	38 gal (US)	46.5 gal (US)	-	-
Torque Converter - Transmission System - HRC	18 gal (US)	-	-	-	-
Torque Converter - Transmission System	-	17 gal (US)	-	-	-
DEF Tank	-	6 gal (US)	-	-	-
Fuel Tank Capacity	-	-	210 gal (US)	-	-
Fuel Tank - Standard	-	-	-	550 gal (US)	-
Fuel Tank (Tier 4)	-	-	-	55 gal (US)	-
Diesel Exhaust Fluid Tank	-	-	-	62 gal (US)	100 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)	-
Final Drive - Each	-	-	-	-	67 gal (US)
Hydraulic Tank	-	-	-	-	296 gal (US)
Hydraulic System - Including Tank	-	-	-	-	385 gal (US)
Note (1)	-	-	-	-	DEF Tank only available for EPA Tier 4 / EU Stage V engine option.
Body Hoists
Pump Flow - High Idle	118 gal/min	118 gal/min	-	106.5 gal/min	-
Relief Valve Setting - Raise	2502 psi	2750 psi	-	2749 psi	3029 psi
Relief Valve Setting - Lower	500 psi	500 psi	-	-	-
Body Raise Time - High Idle	10 s	7.5 s	-	14 s	24 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.	-
Pump Flow - High Idle (HAA at 1,800 rpm)	-	-	-	-	221 gal/min
Pump Flow - High Idle (LAA at 1,960 rpm)	-	-	-	-	240 gal/min
High Idle Body Lower Time - Float	-	-	-	-	20 s
Total Cycle Time	-	-	-	-	44 s
Note (1)	-	-	-	-	Twin, two-stage hydraulic cylinders mounted inside main frame; double-acting cylinders in both stages.
Note (2)	-	-	-	-	Power raise in both stages; power down in both stages possible.
Note (3)	-	-	-	-	Automatic body-lower modulation reduces impact on frame.
Weights - Approximate
Maximum Gross Vehicle Weight	246503 lb	-	-	-	-
Target Gross Machine Operating Weight	-	157000 lb	-	-	-
Target Gross Machine Weight	-	157000 lb	-	-	-
Chassis Weight	-	55948 lb	-	-	426237 lb
Body Weight	-	17306 lb	-	60406 lb	64346 lb
Note (1)	-	Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires.	-	Consult your tire manufacturer for maximum tire load	Consult your tire manufacturer for maximum tire load.
Note (2)	-	Body weight is the standard Dual Slope body with no liner and will vary depending on configuration.	-	Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires.	Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires
Nominal Rated Payload	-	-	-	213 ton (US)	327 ton (US)
Rated Gross Machine Weight	-	-	-	715000 lb	1150000 lb
Note (3)	-	-	-	-	Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
Note (4)	-	-	-	-	Tier 4 Final / Stage V chassis weight: 426312 lb (193372 kg)
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	5.9 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 evaluates all job conditions and consults 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.	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.	Productive capabilities of the 770G 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	Quick Change Rims optional.
Standard Tire	24.00R35 (E4)	18.00R33 (E4)	-	-	-
Standard Tires	-	-	-	37 R57	53/80 R63
Optional Tires	-	-	-	40 R57	-
Optional Tire	-	-	-	42/90 R57	-
Rims	-	-	-	29” x 57” Rims	36" x 63"
ROPS
FOPS Standards	Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.	Falling Objects Protective Structure (FOPS) 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.	Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.	-	-	-
Tractor ROPS	-	-	85288 lb	-	-
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.	The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 75 dB(A) for cab offered by Caterpillar when properly installed, maintained, and tested with doors and windows closed.
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 116 dB(A).	-	-	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.
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 is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used.	-	-	-
Steering
Turning Diameter - Front	77.1 ft	57.7 ft	-	-	-
Steering Standards	ISO 5010:2007	ISO 5010:2007	ISO 5010:2007	ISO 5010:2019	ISO 5010:2019
Steer Angle	31 °	40.5 °	31 °	36.07 °	39 °
Turning Circle - Clearance Diameter	85.6 ft	66.6 ft	85.6 ft	-	-
Note	-	Target gross machine operating weight is 71 214 kg (157,000 lb).	-	-	Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
Turning Diameter	-	-	77.1 ft	-	-
Sustainability
Recyclability	98%	-	-	-	-
Dimensions
Height - Top of ROPS	-	12.7 ft	-	-	-
Overall Body Length	-	26.8 ft	-	-	-
Inside Body Length	-	18.5 ft	-	-	-
Overall Length	-	28.9 ft	-	-	-
Wheel Base	-	13 ft	-	-	-
Rear Axle - Tail	-	8.5 ft	-	-	-
Ground Clearance	-	1.6 ft	-	-	-
Dump Clearance	-	1.7 ft	-	-	-
Loading Height - Empty	-	10.3 ft	-	-	-
Inside Body Depth - Maximum	-	4.6 ft	-	-	-
Overall Height - Body Raised	-	27.1 ft	-	-	-
Operating Width	-	15.7 ft	-	-	-
Centerline Front Tire Width	-	10.2 ft	-	-	-
Engine Guard Clearance	-	1.8 ft	-	-	-
Outside Body Width	-	12.9 ft	-	-	-
Inside Body Width	-	11.9 ft	-	-	-
Front Canopy Height	-	13.5 ft	-	-	-
Rear Axle - Clearance	-	1.8 ft	-	-	-
Centerline of Rear Dual Tire Width	-	8.3 ft	-	-	-
Overall Tire Width	-	12.1 ft	-	-	-
Weights
LRC Bare Chassis Weight without Hoist	-	-	75118 lb	-	-
LRC Bare Chassis Weight with Hoist	-	-	76326 lb	-	-
LRC Gross Vehicle Weight (Target) without Hoist	-	-	246503 lb	-	-
LRC Gross Vehicle Weight (Target) with Hoist	-	-	246503 lb	-	-
HRC Bare Chassis Weight without Hoist	-	-	76573 lb	-	-
HRC Bare Chassis Weight with Hoist	-	-	77781 lb	-	-
HRC Gross Vehicle Weight (Target) without Hoist	-	-	246503 lb	-	-
HRC Gross Vehicle Weight (Target) with Hoist	-	-	246503 lb	-	-
Note	-	-	LRC model is offered for lesser regulated countries. HRC model is offered for highly regulated countries. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.	-	-
Braking System
Service Brakes	-	-	-	Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated	Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area	-	-	-	12662 in²	20378 in²
Rear - Wet Disc Brake Surface Area	-	-	-	20861 in²	30750 in²
Standards	-	-	-	(Service and Secondary) ISO 3450:2011	ISO 3450:2011
Parking Brake	-	-	-	Four-corner, Multi-disc, Spring applied, Hydraulically Released	Four-corner, Multi-disc, Spring applied, Hydraulically Released
Load Brake	-	-	-	-	Rear service brakes
Dynamic Retarding Power - Continuous	-	-	-	-	5480 hp
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.	Falling Object Protective Structure (FOPS) 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.	-
ROPS Standards (1)	-	-	-	-	Rollover Protective Structure (ROPS) meets ISO 3471:2008 criteria for operator and ISO 13459:2012 for trainer.
Dimensions (Approximate)
Height - Top of ROPS	-	-	-	5550 mm	22.25 ft
Overall Body Length	-	-	-	12945 mm	-
Inside Body Length	-	-	-	8730 mm	-
Overall Length	-	-	-	12970 mm	50.75 ft
Wheel Base	-	-	-	57000 mm	21.83 ft
Rear Axle - Tail	-	-	-	3856 mm	15.5 ft
Ground Clearance	-	-	-	1304 mm	2.67 ft
Dump Clearance	-	-	-	1585 mm	3 ft
Loading Height - Empty	-	-	-	6147 mm	22.92 ft
Rear Sidewall Height	-	-	-	1010 mm	-
Inside Body Depth - Maximum	-	-	-	3075 mm	-
Overall Height - Body Raised	-	-	-	11534 mm	48.42 ft
Operating Width	-	-	-	7822 mm	-
Centerline Front Tire Width	-	-	-	5410 mm	23 ft
Engine Guard Clearance	-	-	-	1290 mm	-
Overall Canopy Width	-	-	-	7769 mm	31.5 ft
Outside Body Width	-	-	-	7123 mm	29.75 ft
Inside Body Width	-	-	-	6920 mm	28.08 ft
Front Canopy Height	-	-	-	6739 mm	26.33 ft
Rear Axle - Clearance	-	-	-	1263 mm	3.08 ft
Centerline of Rear Dual Tire Width	-	-	-	4695 mm	18.75 ft
Overall Tire Width	-	-	-	7120 mm	28.67 ft
Front Axle Clearance	-	-	-	-	3.17 ft
Canopy Width (without optional rock deflectors)	-	-	-	-	29.75 ft
AC Drive System
Total Reduction Ratio	-	-	-	-	35:01:00
Top Speed - Loaded	-	-	-	-	37 mile/h
Generator/Alternator	-	-	-	-	Brushless, engine mounted, dual bearing
Controls	-	-	-	-	IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Wheel Motor	-	-	-	-	High-torque AC induction, rear axle mounted
Cooling System	-	-	-	-	Variable speed, hydraulically driven cooling system
Capacity - HE Body - 100% fill factor
Struck	-	-	-	-	108-133 m³ (142-175 yd³)
Heaped (SAE 2:1)	-	-	-	-	180-222 m³ (236-290 yd³)
Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate	-	-	-	-	0.63 in
Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate	-	-	-	-	0.35 in
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate	-	-	-	-	0.31 in
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate	-	-	-	-	0.2 in
Note	-	-	-	-	Contact your local Cat dealer for body recommendations.

Compare Equipment Go Back

775 Off-Highway Truck

770 Off-Highway Truck

775G Off-Highway Truck Bare Chassis

789 Next Generation

794 AC Mining Truck

Operating Specifications

Engine

Capacity - Dual Slope - 100% Fill Factor

Capacity - Flat Floor - 100% Fill Factor

Weight Distributions - Approximate

Transmission

Final Drives

Brakes

Service Refill Capacities

Body Hoists

Weights - Approximate

Suspension

Tires

ROPS

Sound

Steering

Sustainability

Dimensions

Weights

Braking System

Capacity - HP Body - 100% Fill Factor

Cab

Dimensions (Approximate)

AC Drive System

Capacity - HE Body - 100% fill factor

Earthmoving

Parts & Service

Power Systems

Technology

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