G Series represents a new era for this size class from Caterpillar. With your input, we have designed and manufactured a truck that is reliable, economical and offers comfort, confidence, and control for your operators. Your long-term success is our goal and with G Series trucks, we’re on the right road.
Engine
Engine Model
Cat C32
Gross Power - SAE J1995
1025 HP
Net Power - SAE J1349
945 HP
Net Power - 80/1269/EEC
945 HP
Net Power - ISO 9249
945 HP
Bore
145 mm
Stroke
162 mm
Displacement
32.1 l
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Peak Torque - Speed
1200 r/min
Note (4)
Meets China Nonroad Stage III emission standards equivalent to U.S. EPA Tier 3 or U.S. EPA Tier 2.
Engine Speed
1800 r/min
Note (3)
Available as Tier 3/Stage IIIA equivalent, OR Tier 2/Stage II equivalent emission standards.
Net Torque
5286 N·m
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).
Cylinders
12
Engine Power - ISO 14396
755 kW
Weights - Approximate
Target Gross Machine Weight
164654 kg
Operating Specifications
Nominal Payload Class (100%)
89.4 t
Top Speed - Loaded
67.1 km/h
Maximum Allowable Payload (120%)*
107.2 t
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross vehicle weight limitations.
Maximum Working Payload (110%)
98.3 t
Target Payload (100%)
89.4 t
Note (1)
Capacity with flat floor X Body with liner.
Body Capacity - SAE 2:1
64.1 m³
Transmission
Forward - 1
10.9 km/h
Forward - 2
14.8 km/h
Forward - 3
20.1 km/h
Forward - 4
27.2 km/h
Forward - 5
36.9 km/h
Forward - 6
49.4 km/h
Forward - 7
67.1 km/h
Reverse
12.4 km/h
Note
Maximum travel speeds with standard 27.00R49 (E4) tires.
Final Drives
Differential Ratio
2.736:1
Planetary Ratio
7.0:1
Total Reduction Ratio
19.1576:1
Brakes
Brake Standards
ISO 3450-2011
Brake Surface Area - Front
40846 cm²
Brake Surface Area - Rear
102116 cm²
Body Hoists
Pump Flow - High Idle
458 l/min
Relief Valve Setting - Raise
18950 kPa
Relief Valve Setting - Lower
3450 kPa
Body Raise Time - High Idle
15 s
Body Lower Time - Float
13 s
Body Lower Time - High Idle
13 s
Capacity - Dual Slope - 100% Fill Factor
Struck
41.9 m³
Heaped 2:1 (SAE)
60.2 m³
Note (1)
Contact your local Cat dealer for body recommendation.
Note (2)
*ISO 6483:1980
Heaped (SAE 2:1)*
60.2 m³
Weight Distributions - Approximate
Front Axle - Empty
46 %
Front Axle - Loaded
33 %
Rear Axle - Empty
54 %
Rear Axle - Loaded
67 %
Suspension
Rear axle - Oscillation
5.4 °
Empty Loaded Cylinder Stroke Rear
66 mm
Empty Loaded Cylinder Stroke Front
74.7 mm
Service Refill Capacities
Fuel Tank (1)
1136 l
Cooling System
240 l
Steering System - Including Tank
53.6 l
Torque Converter - Transmission System
138.5 l
Brake Hoist System
322 l
Crankcase
109 l
Fuel Tank (2)
1325 l
Final Drive - Each
76 l
Differentials
227 l
Brake Hoist System - Includes Tank
444 l
Tires
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Note (1)
Productive capabilities of the 777G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Standard Tire
27.00R49 (E4)
ROPS
FOPS Standards
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.
Sound
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 83 dB(A) for Tier 4 trucks and 84 dB(A) for Tier 2 Equivalent.
Sound Standards (1)
The operator Equivalent Sound Pressure Level (Leq) is 73 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 the cab doors and the cab windows closed.
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.
Steering
Turning Diameter - Front
25.3 m
Steering Standards
ISO 5010:2007
Steer Angle
30.5 °
Turning Circle - Clearance Diameter
28.4 m
Capacity - X Body - 100% Fill Factor
Struck
43.1 m³
Note (2)
*ISO 6483:1980
Heaped (SAE 2:1)*
64.1 m³
Heaped 2:1 (SAE)
64.1 m³
Note (1)
Contact your local Cat dealer for body recommendation.
Capacity - Coal Bodies - 100% Fill Factor
SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3)
89 m³
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)
106 m³
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)
110 m³
SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3)