1300 881 064 
FIND A BRANCH
DIGITAL TOOLS
Photos
770 (07)
Videos
770 (07)
360º View
770 (07)
770 (07)
Off-Highway Trucks
Cat’s 770 40-ton payload sets the standard for haul performance in construction and quarry industries. We’ve taken the best of our rugged, dependable Off-Highway Truck lineup and integrated it with technologies that help our environment, make operators more productive, and dramatically improve the economics of haul fleets. An optimal pass match for the 770 is the Cat 986K or 988K Wheel Loader or the 374F or 390F Hydraulic Excavators. No matter your business type, the 770 is designed to help you move materials safely and efficiently through every haul.
Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1800 r/min/1800 r/min
Gross Power - SAE J1995:2014
511 hp/381 kW
Net Power - SAE J1349:2011
483 hp/360 kW
Key Features
ACHIEVE GREATER PRODUCTIVITY
BOOST FUEL EFFICIENCY
DESIGNED FOR SAFETY
WORK IN COMFORT
TECHNOLOGY THAT GETS WORK DONE
REDUCED MAINTENANCE COST AND OTHER COSTS
APPLICATION VERSATILITY
Specifications
Metric
|
Imperial
Engine 
Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1800 r/min
1800 r/min
Gross Power - SAE J1995:2014
511 hp
381 kW
Net Power - SAE J1349:2011
483 hp
360 kW
Net Power - ISO 9249
476 hp
365 kW
Net Power - 80/1269/EEC
489 hp
365 kW
Engine Power - ISO 14396
506 hp
377 kW
Net Torque - SAE J1349
1682 ft-lb
2280 N·m
Number of Cylinders
6
Bore
5.4 in
137 mm
Stroke
6.7 in
171 mm
Displacement
927.6 in³
15.2 l
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
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).
Note (3)
No engine derating required up to 3000 m (9,843 ft) altitude.
Note (4)
Meets China Nonroad Stage III emission standards equivalent to Tier 3 or Tier 2.
Weights - Approximate
Target Gross Machine Operating Weight
157000 lb
71214 kg
Chassis Weight
54895 lb
24900 kg
Body Weight
16898 lb
7665 kg
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
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).
Operating Specifications
Nominal Payload Class (100%)
42.6 Sh Ton
38.6 t
Top Speed - Loaded
45.7 mile/h
73.5 km/h
Target Payload (100%)
42.6 Sh Ton
38.6 ton (US)
Body Capacity - SAE 2:1
33 yd³
25.2 m³
Top Speed - Loaded*
45.7 mile/h
73.5 km/h
Note
Refer to the Caterpillar 10/10/20 Overload Policy for maximum gross machine weight limitations.
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
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).
Transmission
Forward - 1
7.4 mile/h
11.9 km/h
Forward - 2
10.1 mile/h
16.3 km/h
Forward - 3
13.7 mile/h
22.1 km/h
Forward - 4
18.4 mile/h
29.6 km/h
Forward - 5
25 mile/h
40.2 km/h
Forward - 6
33.7 mile/h
54.2 km/h
Forward - 7
45.7 mile/h
73.5 km/h
Reverse
9.7 mile/h
15.6 km/h
Note
Refer to the Caterpillar 10/10/20 Overload Policy for maximum gross machine weight limitations.
Final Drives
Differential Ratio
2.12:1
Planetary Ratio
4.80:1
Total Reduction Ratio
10.18:1
Brakes
Brake Surface - Front
216 in²
1395 cm²
Brake Surface - Rear
6235 in²
40225 cm²
Brake Standards
ISO 3450:2011
Body Hoists
Pump Flow - High Idle
118 gpm
448 L/min
Relief Valve Setting - Raise
2750 psi
18950 kPa
Relief Valve Setting - Lower
500 psi
3450 kPa
Body Power Down - High Idle
10.0 seconds (approx.)
Body Lower Time - Float
10.0 seconds (approx.)
Body Raise Time - High Idle
7.5 seconds (approx.)
Capacity - Dual Slope - 100% Fill Factor
Struck
23.01 yd³
17.6 m³
Heaped (SAE 2:1)*
32.9 yd³
25.2 m³
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Capacity - Flat Floor - 100% Fill Factor
Struck
23.01 yd³
17.6 m³
Heaped (SAE 2:1)*
32.9 yd³
25.2 m³
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Weight Distributions - Approximate
Front Axle - Empty
51.9 %
51.9 %
Front Axle - Loaded
34.5 %
34.5 %
Rear Axle - Empty
48.1 %
48.1 %
Rear Axle - Loaded
65.5 %
65.5 %
Suspension
Empty Loaded Cylinder Stroke Front
9.2 in
234 mm
Empty Loaded Cylinder Stroke Rear
5.9 in
149 mm
Rear axle - Oscillation
8.9 °
8.9 °
Service Refill Capacities
Fuel Tank
140 gal (US)
530 l
Cooling System
33 gal (US)
125 l
Crankcase
10 gal (US)
38 l
Differential - Final Drives
47 gal (US)
180 l
Steering Tank
14.5 gal (US)
55 l
Steering System - Including Tank
23 gal (US)
87 l
Brake/Hoist Hydraulic Tank
38 gal (US)
145 l
Brake Hoist System
60 gal (US)
227 l
Torque Converter - Transmission System
17 gal (US)
64 l
Tires
Standard Tire
18.00R33 (E4)
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
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).
ROPS
ROPS/FOPS Standards
Standards
ROPS Standards
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
Sound
Sound Standards
Standards
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
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).
Steering
Steering Standards
ISO 5010:2007
Steer Angle
40.5 °
40.5 °
Turning Diameter - Front
57.7 ft
17.6 m
Turning Circle - Clearance Diameter
66.6 ft
20.3 m
Equipment
Standard Equipment
Optional Equipment
