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777G Off-Highway Truck
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; with G Series trucks, we’re on the right road.
- Technical Specs
- Optional Equipment
- Engine Model
- Cat® C32 ACERT™
- Gross Power - SAE J1995
- 1025.0 hp
- Net Power - SAE J1349
- 916.0 hp
- Net Power - 80/1269/EEC
- 916.0 hp
- Net Power - ISO 9249
- 916.0 hp
- Bore
- 5.7 in
- Stroke
- 6.4 in
- Displacement
- 1959.0 in3
- Cylinders
- 12
- Engine Power - ISO 14396
- 1008.0 hp
- Engine Speed
- 1800.0 RPM
- Net Torque
- 3899.0 ft-lb
- Peak Torque Speed
- 1200.0 RPM
- Target Gross Machine Weight
- 363000.0 lb
- Nominal Payload Class (100%)
- 98.4 tons
- Top Speed - Loaded
- 41.7 mph
- Body Capacity - SAE 2:1
- 83.8 yd3
- Maximum Payload (110%)
- 108.2 tons
- Nominal Payload (100%)
- 98.4 tons
- Not to Exceed Payload (120%)*
- 118.1 tons
- Forward 1
- 6.8 mph
- Forward 2
- 9.2 mph
- Forward 3
- 12.5 mph
- Forward 4
- 16.9 mph
- Forward 5
- 22.9 mph
- Forward 6
- 30.7 mph
- Forward 7
- 41.7 mph
- Reverse
- 7.7 mph
- Differential Ratio
- 2.736:1
- Planetary Ratio
- 7.0:1
- Total Reduction Ratio
- 19.1576:1
- Brake Standards
- ISO 3450:1996
- Brake Surface Area - Front
- 6331.0 in2
- Brake Surface Area - Rear
- 15828.0 in2
- Pump Flow - High Idle
- 120.9 gal/min
- Relief Valve Setting - Raise
- 2750.0 psi
- Relief Valve Setting - Lower
- 500.0 psi
- Body Raise Time - High Idle
- 15.0 Seconds
- Body Lower Time - Float
- 13.0 Seconds
- Body Lower Time - High Idle
- 13.0 Seconds
- Struck
- 54.8 yd3
- Heaped 2:1 (SAE)
- 78.8 yd3
- Front Axle - Empty
- 46.0 %
- Front Axle - Loaded
- 33.0 %
- Rear Axle - Empty
- 54.0 %
- Rear Axle - Loaded
- 67.0 %
- Rear Axle Oscillation
- 5.4 Degrees
- Empty Loaded Cylinder Stroke Front
- 2.9 in
- Empty Loaded Cylinder Stroke Rear
- 2.5 in
- Fuel Tank
- 300.0 gal
- Cooling System
- 63.4 gal
- Steering System (Includes Tank)
- 14.1 gal
- Brake Hoist System
- 85.0 gal
- Brake Hoist System (Includes Tank)
- 117.0 gal
- Crankcase
- 28.7 gal
- Differentials
- 59.9 gal
- Final Drives (each)
- 20.0 gal
- Fuel Tank
- 350.0 gal
- Torque Converter/Transmission System
- 36.5 gal
- Standard Tire
- 27.00R49 (E4)
- ROPS/FOPS Standards
- Standards
- Sound Standards
- Standards
- Turning Diameter - Front
- 83.0 ft
- Steering Standards
- SAE J1511 FEB94 ISO 5010:1992
- Steer Angle
- 30.5 Degrees
- Turning Circle Clearance Diameter
- 93.0 ft
- Heaped 2:1 (SAE)
- 83.8 yd3
- Struck
- 56.3 yd3
- SAE 2:1 for use with material densities less than 950 kg/m3 (1,600 lb/yd3)
- 165.0 yd3
- SAE 2:1 for use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)
- 139.0 yd3
- SAE 2:1 for use with material densities of 1160 kg/m3 (1,950 lb/yd3)
- 116.0 yd3
- SAE 2:1 for use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)
- 144.0 yd3
- Body heat
- Body liners
- Body side boards
- Cab precleaner
- Cat Engine Brake
- Clustered grease fittings
- Cold weather packages
- Extended Life Brakes
- Fluid fill service center
- HID lights
- Mirrors, convex
- Mirrors, heated
- Spare rim
- Visibility package (meets ISO 5006 requirements)
- Wheel chocks
- Work Area Vision System (WAVS)