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777G (Tier 2)

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Overview

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.

Engine

  • Engine Model Cat® C32 ACERT™ Cat® C32 ACERT™
  • Gross Power - SAE J1995 1025.0 HP 765.0 kW
  • Net Power - SAE J1349 945.0 HP 704.0 kW
  • Net Power - 80/1269/EEC 945.0 HP 704.0 kW
  • Net Power - ISO 9249 945.0 HP 704.0 kW
  • Bore 5.7 in 146.0 mm
  • Stroke 6.4 in 162.0 mm
  • Displacement 1959.0 in³ 32.1 l
  • Cylinders 12 12
  • Engine Power - ISO 14396 1012.0 HP 755.0 kW
  • Engine Speed 1800.0 r/min 1800.0 r/min
  • Net Torque 3899.0 ft-lb 5286.0 N·m
  • Peak Torque - Speed 1200.0 r/min 1200.0 r/min

Weights - Approximate

  • Target Gross Machine Weight 363000.0 lb 164654.0 kg

Operating Specifications

  • Nominal Payload Class (100%) 100.0 ton (US) 90.8 t
  • Top Speed - Loaded 41.7 mile/h 67.1 km/h
  • Body Capacity - SAE 2:1 83.8 yd³ 64.1 m³
  • Maximum Payload (110%) 110.0 ton (US) 99.8 ton (US)
  • Nominal Payload (100%) 100.0 ton (US) 90.8 ton (US)
  • Not to Exceed Payload (120%)* 120.0 ton (US) 109.0 ton (US)

Transmission

  • Forward - 1 6.8 mile/h 10.9 km/h
  • Forward - 2 9.2 mile/h 14.8 km/h
  • Forward - 3 12.5 mile/h 20.1 km/h
  • Forward - 4 16.9 mile/h 27.2 km/h
  • Forward - 5 22.9 mile/h 36.9 km/h
  • Forward - 6 30.7 mile/h 49.4 km/h
  • Forward - 7 41.7 mile/h 67.1 km/h
  • Reverse 7.7 mile/h 12.4 km/h

Final Drives

  • Differential Ratio 2.736:1 2.736:1
  • Planetary Ratio 7.0:1 7.0:1
  • Total Reduction Ratio 19.1576:1 19.1576:1

Brakes

  • Brake Standards ISO 3450:1996 ISO 3450:1996
  • Brake Surface Area - Front 6331.0 in² 40846.0 cm²
  • Brake Surface Area - Rear 15828.0 in² 102116.0 cm²

Body Hoists

  • Pump Flow - High Idle 120.9 gal/min 458.0 l/min
  • Relief Valve Setting - Raise 2750.0 psi 18950.0 kPa
  • Relief Valve Setting - Lower 500.0 psi 3450.0 kPa
  • Body Raise Time - High Idle 15.0 s 15.0 s
  • Body Lower Time - Float 13.0 s 13.0 s
  • Body Lower Time - High Idle 13.0 s 13.0 s

Capacity - Dual Slope - 100% Fill Factor

  • Struck 54.8 yd³ 41.9 m³
  • Heaped 2:1 (SAE) 78.8 yd³ 60.2 m³

Weight Distributions - Approximate

  • Front Axle - Empty 46.0 % 46.0 %
  • Front Axle - Loaded 33.0 % 33.0 %
  • Rear Axle - Empty 54.0 % 54.0 %
  • Rear Axle - Loaded 67.0 % 67.0 %

Suspension

  • Rear axle - Oscillation 5.4 ° 5.4 °
  • Empty Loaded Cylinder Stroke Front 2.9 in 74.7 mm
  • Empty Loaded Cylinder Stroke Rear 2.5 in 66.0 mm

Service Refill Capacities

  • Fuel Tank (1) 300.0 gal (US) 1136.0 l
  • Cooling System 60.2 gal (US) 228.0 l
  • Steering System - Including Tank 14.1 gal (US) 53.6 l
  • Brake Hoist System 85.0 gal (US) 322.0 l
  • Brake Hoist System - Includes Tank 117.0 gal (US) 444.0 l
  • Crankcase 28.7 gal (US) 109.0 l
  • Differentials 59.9 gal (US) 227.0 l
  • Final Drive - Each 20.0 gal (US) 76.0 l
  • Fuel Tank (2) 350.0 gal (US) 1325.0 l
  • Torque Converter - Transmission System 36.5 gal (US) 138.5 l

Tires

  • Standard Tire 27.00R49 (E4) 27.00R49 (E4)

ROPS

  • ROPS/FOPS Standards Standards Standards

Sound

  • Sound Standards Standards Standards

Steering

  • Turning Diameter - Front 83.0 ft 25.3 m
  • Steering Standards SAE J1511 FEB94 ISO 5010:1992 SAE J1511 FEB94 ISO 5010:1992
  • Steer Angle 30.5 ° 30.5 °
  • Turning Circle - Clearance Diameter 93.0 ft 28.4 m

Capacity - X Body - 100% Fill Factor

  • Heaped 2:1 (SAE) 83.8 yd³ 64.1 m³
  • Struck 56.3 yd³ 43.1 m³

Capacity - Coal Bodies - 100% Fill Factor

  • SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3) 165.0 yd³ 126.0 m³
  • SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3) 139.0 yd³ 106.0 m³
  • SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3) 116.0 yd³ 89.0 m³
  • SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3) 144.0 yd³ 110.0 m³

Safety

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Operator Work Environment

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Environmental Responsibility

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Cutting Your Fuel Costs

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Performance

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Long Term Value and Durability

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Body Options

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XQ Package

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Mud Protection Package

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Service Convenience

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