Caterpillar 770 Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Caterpillar ➔
Model: 770 ➔

The Caterpillar 770 is a rigid-frame off-highway truck used in mining, quarrying, and large earthmoving applications. It is designed for hauling high volumes of material over rough terrain and is commonly paired with excavators, wheel loaders, and dozers in production fleets. The 770 features a heavy-duty chassis, high-capacity dump body, and diesel powertrain built for continuous load-and-carry cycles. Typical specifications include advanced braking, suspension, and operator control systems for off-road haulage. Caterpillar has produced multiple 770 variants over time, with differences in engine output, payload, and emissions configuration depending on model year and market.

General Specifications

Caterpillar 770 Off-Highway Truck General Specifications specifications
Articulated/Rigid	R — Starting 2016 Model Year
Drive Configuration	2WD — Starting 2016 Model Year
Engine Type	Cat C15 ACERT — Starting 2016 Model Year
Operating Weight lbs (kg)	134,912 (61,195) — Starting 2016 Model Year
Planetary Powershift Transmission	Auto — Starting 2016 Model Year
Rated Payload Tons (Metric Tons)	36 (32.7) — Starting 2016 Model Year

Approximate Weights - Flat Floor

Caterpillar 770 Off-Highway Truck Approximate Weights - Flat Floor specifications
Chassis	35.00 lbs (15.88 kg)

Articulating/Rigid

Caterpillar 770 Off-Highway Truck Articulating/Rigid specifications
Articulating/Rigid	Rigid

Body Hoists

Caterpillar 770 Off-Highway Truck Body Hoists specifications
Body Lower Time - Float	12.5 seconds
Body Power Down - High Idle	12.5 seconds
Body Raise Time - High Idle	9.5 seconds
Pump Flow - High Idle	136.00 gpm (514.76 lpm)
Relief Valve Setting - Raise	2500 psi

Brakes

Caterpillar 770 Off-Highway Truck Brakes specifications
Brake Surface - Rear	6,235.00 cu in (102,173.57 cu cm)
Standards	2.74:1

Capacity - Flat Floor - 100% Fill Factor

Caterpillar 770 Off-Highway Truck Capacity - Flat Floor - 100% Fill Factor specifications
Heaped 2:1 (SAE)	32.80 cu yd (25.08 cu m)

Dimensions

Caterpillar 770 Off-Highway Truck Dimensions specifications
Centerline Front Tire Width	10.20 ft (3.11 m)
Dump Ground Clearance	1.60 ft (0.49 m)
Dump Height	27.20 ft (8.29 m)
Front Canopy Height	13.60 ft (4.15 m)
Ground Clearance	2.30 ft (0.70 m)
Inside Body Length	18.30 ft (5.58 m)
Loading Height - Empty	10.30 ft (3.14 m)
Operating Width	15.60 ft (4.75 m)
Outside Body Width	157,000.00 ft (47,853.60 m)
Overall Height	10.30 ft (3.14 m)
Overall Height - Body Raised	27.20 ft (8.29 m)
Overall Length	28.70 ft (8.75 m)
Overall Width	15.60 ft (4.75 m)
Wheel Base	13.00 ft (3.96 m)
Wheelbase	13.00 ft (3.96 m)

DRIVE SYSTEM

Caterpillar 770 Off-Highway Truck DRIVE SYSTEM specifications
Drive Config	4x2

Dump

Caterpillar 770 Off-Highway Truck Dump specifications
Load Capacity - heaped	32.90 cu yd (25.15 cu m)
Load Capacity - Struck	22.40 cu yd (17.13 cu m)
Lower Time	12.5 seconds
Raise Time	9.5 seconds

Engine

Caterpillar 770 Off-Highway Truck Engine specifications
Aspiration	Turbocharged
Bore	5.40 in (13.72 cm)
Displacement	927.60 cu in (15,200.67 cu cm)
Engine Model	Cat C15 ACERT
Gross Power	511.00 hp (381.06 kw)
Gross Power - SAE J1995	511.00 hp (381.06 kw)
Make	Cat
Max Torque	1,711.00 lbs ft (2,319.77 nm)
Net Power	476.00 hp (354.96 kw)
Net Power - 80/1269/EEC	476.00 hp (354.96 kw)
Net Power - SAE J1349	476.00 hp (354.96 kw)
Number of Cylinders	6
Peak Torque	1,711.00 lbs ft (2,319.77 nm)
Power Measured @	1800 rpm
Stroke	6.70 in (17.02 cm)
Torque Measured @	Turbocharged rpm
Torque Rise	12.5

Final Drives

Caterpillar 770 Off-Highway Truck Final Drives specifications
Planetary Ratio	4.80:1
Total Reduction Ratio	13.15:1

Operating Specifications

Caterpillar 770 Off-Highway Truck Operating Specifications specifications
Alternator Supplied Amperage	Power Shift
Body Capacity - SAE 2:1	32.80 cu yd (25.08 cu m)
Brake/Hoist System Fluid Capacity	73.00 gal (276.31 l)
Cooling System Fluid Capacity	30.00 gal (113.55 l)
Diff and Final Drive Fluid Capacity	42.00 gal (158.97 l)
Engine Oil Capacity	56.00 gal (211.96 l)
Fuel Capacity	140.00 gal (529.90 l)
Maximum Capacity	80,000.00 lbs (36,287.43 kg)
Nominal Payload Capacity	22.00 lbs (9.98 kg)
Nominal Payload Class (100%)	80,000.00 lbs (36,287.43 kg)
Steering System Fluid Capacity	15.00 gal (56.78 l)
Tire Size	18.00R33(E4)
Top Speed - Loaded	46.50 mph (74.83 kph)

Service Refill Capacities

Caterpillar 770 Off-Highway Truck Service Refill Capacities specifications
Brake / Hoist / Fan Hydraulic Tank	35.00 gal (132.48 l)
Brake/Hoist Hydraulic Tank	80,000.00 gal (302,800.01 l)
Cooling System	30.00 gal (113.55 l)
Crankcase	9.00 gal (34.07 l)
Fuel Tank	140.00 gal (529.90 l)
Steering System - Including Tank	15.00 gal (56.78 l)
Steering Tank	9.00 gal (34.07 l)
Torque Converter - Transmission Sump	53,380.00 gal (202,043.30 l)

Steering System

Caterpillar 770 Off-Highway Truck Steering System specifications
Steer Angle	40 degrees
Steering Standards	ISO 5010:1992
Turning Circle - Clearance Diameter	ISO 3450: 1996 ft (0.00 m)

Suspension

Caterpillar 770 Off-Highway Truck Suspension specifications
Effective Cylinder Stroke - Rear	5.90 in (14.99 cm)

Tires

Caterpillar 770 Off-Highway Truck Tires specifications
Standard Tire	18.00R33 (E4)
Standard Tires	216

Transmission

Caterpillar 770 Off-Highway Truck Transmission specifications
Forward - 1	7.50 mph (12.07 kph)
Forward - 2	10.30 mph (16.58 kph)
Forward - 3	14.00 mph (22.53 kph)
Forward - 4	18.80 mph (30.26 kph)
Forward - 5	25.40 mph (40.88 kph)
Forward - 6	34.30 mph (55.20 kph)
Forward - 7	46.50 mph (74.83 kph)
Max Speed	46.50 mph (74.83 kph)
Number of Gears - Forward	7
Number of Gears - Reverse	1
Reverse	9.90 mph (15.93 kph)
Transmission Type	Power Shift

Weights

Caterpillar 770 Off-Highway Truck Weights specifications
Body Weight	22,110.00 lbs (10,028.94 kg)
Chassis Weight	53,380.00 lbs (24,212.79 kg)
Empty Weight	75,490.00 lbs (34,241.73 kg)
Front Axle - Empty	48%
Front Axle - Loaded	34%
Loaded Weight	157,000.00 lbs (71,214.09 kg)
Operating Weight	157,000.00 lbs (71,214.09 kg)
Operating Weight - Loaded	ISO 5010:1992 lbs (0.00 kg)
Rear Axle - Empty	52%
Rear Axle - Loaded	66%
Weight Distribution Front - empty	48%
Weight Distribution Front - loaded	34%
Weight Distribution Rear - empty	52%
Weight Distribution Rear - loaded	66%

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