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

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

Weights - Approximate

Target Gross Machine Weight 363000.0 lb 164654.0 kg Less

Operating Specifications

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

Transmission

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

Final Drives

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

Brakes

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

Body Hoists

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

Capacity - Dual Slope - 100% Fill Factor

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

Weight Distributions - Approximate

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

Suspension

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

Service Refill Capacities

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

Tires

Standard Tire 27.00R49 (E4) 27.00R49 (E4) Less

ROPS

ROPS/FOPS Standards Standards Standards Less

Sound

Sound Standards Standards Standards Less

Steering

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

Capacity - X Body - 100% Fill Factor

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

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 Less
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 Less
SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3) 116.0 yd³ 89.0 m³ Less
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 Less

Environmental Responsibility

Cutting Your Fuel Costs

Performance

Long Term Value and Durability

Body Options

XQ Package

Mud Protection Package