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 wheel loaders, hydraulic excavators, and dozers in production fleets. The 770 features a high-capacity dump body, heavy-duty suspension, and a powertrain built for continuous load-and-carry cycles. Caterpillar has offered the 770 in multiple configurations across different model years, with updates to engine emissions, operator controls, and serviceability. It is part of Caterpillar's off-highway truck lineup for material transport in demanding site conditions.
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
134,912.00 lbs (61,195.13 kg) — Starting 2016 Model Year
Planetary Powershift Transmission
Auto — Starting 2016 Model Year
Rated Payload
36.00 t (36,000.00 kg) — Starting 2016 Model Year
Body Hoists
Caterpillar 770 Off-Highway Truck Body Hoists specifications
Body Lower Time - Float
12.5 s
Body Power Down - High Idle
12.5 s
Body Raise Time - High Idle
9.5 s
Pump Flow - High Idle
136.00 gpm (514.76 lpm)
Relief Valve Setting - Lower
500 psi
Relief Valve Setting - Raise
2500 psi
Brakes
Caterpillar 770 Off-Highway Truck Brakes specifications
Brake Standards
ISO 3450: 1996
Brake Surface - Front
216 in2
Brake Surface - Rear
6235 in2
Capacity - Dual Slope - 100% Fill Factor
Caterpillar 770 Off-Highway Truck Capacity - Dual Slope - 100% Fill Factor specifications
Heaped 2:1 (Sae)
32.8 cu yd
Struck
21.5 cu yd
Capacity - Flat Floor - 100% Fill Factor
Caterpillar 770 Off-Highway Truck Capacity - Flat Floor - 100% Fill Factor specifications
Heaped 2:1 (Sae)
32.8 cu yd
Struck
21.5 cu yd
Dimensions
Caterpillar 770 Off-Highway Truck Dimensions specifications
Centerline Front Tire Width
10.20 ft (3.11 m)
Centerline Of Rear Dual Tire Width
8.32 ft (2.54 m)
Dump Clearance
1.52 ft (0.46 m)
Dump Ground Clearance
1.58 ft (0.48 m)
Dump Height
27.17 ft (8.28 m)
Engine Guard Clearance
2.21 ft (0.67 m)
Front Canopy Height
13.58 ft (4.14 m)
Ground Clearance
2.23 ft (0.68 m)
Height - Top Of Rops
12.83 ft (3.91 m)
Inside Body Depth - Maximum
4.35 ft (1.33 m)
Inside Body Length
18.21 ft (5.55 m)
Inside Body Width
12.13 ft (3.70 m)
Loading Height - Empty
10.24 ft (3.12 m)
Operating Width
15.59 ft (4.75 m)
Overall Body Length
26.81 ft (8.17 m)
Overall Canopy Width
13.00 ft (3.96 m)
Overall Height
10.24 ft (3.12 m)
Overall Height - Body Raised
27.17 ft (8.28 m)
Overall Length
28.67 ft (8.74 m)
Overall Tire Width
12.12 ft (3.69 m)
Overall Width
15.59 ft (4.75 m)
Rear Axle - Clearance
1.67 ft (0.51 m)
Rear Axle - Tail
8.50 ft (2.59 m)
Wheel Base
13.00 ft (3.96 m)
Wheelbase
12.99 ft (3.96 m)
Dump
Caterpillar 770 Off-Highway Truck Dump specifications
Dump Angle
47.5 degrees
Load Capacity - Heaped
32.9 cu yd
Load Capacity - Struck
22.4 cu yd
Lower Time
12.5 sec
Raise Time
9.5 sec
Rated Payload
80,000.00 lbs (36,287.43 kg)
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 Make
2236
Engine Model
C15 ACERT
Gross Power
511.00 hp (381.06 kw)
Gross Power - Sae J1995
511.00 hp (381.06 kw)
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 - Iso 9249:1997
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
Rated Engine Speed
1800 rpm
Stroke
6.70 in (17.02 cm)
Final Drives
Caterpillar 770 Off-Highway Truck Final Drives specifications
Differential Ratio
2.74:1
Planetary Ratio
4.80:1
Total Reduction Ratio
13.15:1
Operating Specifications
Caterpillar 770 Off-Highway Truck Operating Specifications specifications
Body Capacity - Sae 2:1
32.8 cu yd
Maximum Capacity
80,000.00 lbs (36,287.43 kg)
Nominal Payload Class (100%)
80,000.00 lbs (36,287.43 kg)
Target Payload Capacity
80,000.00 lbs (36,287.43 kg)
Top Speed - Loaded
46.50 mph (74.83 kph)
Operational
Caterpillar 770 Off-Highway Truck Operational specifications
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)
Hydraulic System Fluid Capacity
25.00 gal (94.63 l)
Steering System Fluid Capacity
15.00 gal (56.78 l)
Tire Size
18.00R33(E4)
Rops
Caterpillar 770 Off-Highway Truck Rops specifications
Rops/Fops Standards
.
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/Fan System (Tank)
73.00 gal (276.31 l)
Cooling System
30.00 gal (113.55 l)
Crankcase
9.00 gal (34.07 l)
Differential - Final Drives
22.00 gal (83.27 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)
Transmission - Torque Converter Sump
14.00 gal (52.99 l)
Transmission - Torque Converter System - Including Sump
19.00 gal (71.92 l)
Sound
Caterpillar 770 Off-Highway Truck Sound specifications
Sound Standards
.
Steering
Caterpillar 770 Off-Highway Truck Steering specifications
Steer Angle
40 degrees
Steering Standards
ISO 5010:1992
Suspension
Caterpillar 770 Off-Highway Truck Suspension specifications
Effective Cylinder Stroke - Front
9.20 in (23.37 cm)
Effective Cylinder Stroke - Rear
5.90 in (14.99 cm)
Rear Axle - Oscillation
5.4 degrees
Tires
Caterpillar 770 Off-Highway Truck Tires specifications
Standard Tire
18.00R33 (E4)
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
9.9 mile/h
Transmission Type
Power Shift
Weight Distributions - Approximate
Caterpillar 770 Off-Highway Truck Weight Distributions - Approximate specifications
Front Axle - Empty
48 %
Front Axle - Loaded
34 %
Rear Axle - Empty
52 %
Rear Axle - Loaded
66 %
Weights
Caterpillar 770 Off-Highway Truck Weights specifications
Empty Weight
75,490.00 lbs (34,241.73 kg)
Loaded Weight
157,000.00 lbs (71,214.09 kg)
Weight Distribution Front - Empty
48 %
Weight Distribution Front - Loaded
34 %
Weight Distribution Rear - Empty
52 %
Weight Distribution Rear - Loaded
66 %
Weights - Approximate
Caterpillar 770 Off-Highway Truck Weights - Approximate specifications
Body Weight
22,110.00 lbs (10,028.94 kg)
Chassis Weight
53,380.00 lbs (24,212.79 kg)
Target Gross Machine Operating Weight
157,000.00 lbs (71,214.09 kg)
