777G Off-Highway Truck

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.

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Engine

Engine Model
Cat® C32 ACERT™
Cylinders
12
Engine Power - ISO 14396
1008.0hp
Engine Speed
1800.0RPM
Net Torque
3899.0ft-lb
Peak Torque Speed
1200.0RPM
Gross Power - SAE J1995
1025HP
Net Power - SAE J1349
916HP
Net Power - 80/1269/EEC
916HP
Net Power - ISO 9249
916HP
Bore
5.7in
Stroke
6.4in
Displacement
1959in³
Engine Model
Cat® C32 ACERT™
Cylinders
12
Engine Power - ISO 14396
1008HP
Engine Speed
1800r/min
Net Torque
3899ft-lb
Peak Torque - Speed
1200r/min

Operating Specifications

Body Capacity - SAE 2:1
83.8yd3
Nominal Payload Class (100%)
98.4ton (US)
Top Speed - Loaded
41.7mile/h
Maximum Payload (110%)
108.2ton (US)
Nominal Payload (100%)
98.4ton (US)
Not to Exceed Payload (120%)*
118.1ton (US)
Body Capacity - SAE 2:1
83.8yd³

Brakes

Brake Surface Area - Front
6331.0in2
Brake Surface Area - Rear
15828.0in2
Brake Standards
ISO 3450:1996
Brake Surface Area - Front
6331in²
Brake Surface Area - Rear
15828in²

Service Refill Capacities

Brake Hoist System (Includes Tank)
117.0gal
Final Drives (each)
20.0gal
Fuel Tank
350.0gal
Fuel Tank (1)
300gal (US)
Cooling System
63.4gal (US)
Steering System - Including Tank
14.1gal (US)
Brake Hoist System
85gal (US)
Crankcase
28.7gal (US)
Differentials
59.9gal (US)
Torque Converter - Transmission System
36.5gal (US)
Brake Hoist System - Includes Tank
117gal (US)
Final Drive - Each
20gal (US)
Fuel Tank (2)
350gal (US)

ROPS

ROPS/FOPS Standards
Standards
ROPS/FOPS Standards
Standards

Sound

Sound Standards
Standards
Sound Standards
Standards

Weights - Approximate

Target Gross Machine Weight
363000lb

Capacity - Dual Slope - 100% Fill Factor

Struck
54.8yd³
Heaped 2:1 (SAE)
78.8yd³

Weight Distributions - Approximate

Front Axle - Empty
46%
Front Axle - Loaded
33%
Rear Axle - Empty
54%
Rear Axle - Loaded
67%

Transmission

Forward - 1
6.8mile/h
Forward - 2
9.2mile/h
Forward - 3
12.5mile/h
Forward - 4
16.9mile/h
Forward - 5
22.9mile/h
Forward - 6
30.7mile/h
Forward - 7
41.7mile/h
Reverse
7.7mile/h

Final Drives

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

Body Hoists

Pump Flow - High Idle
120.9gal/min
Relief Valve Setting - Raise
2750psi
Relief Valve Setting - Lower
500psi
Body Raise Time - High Idle
15s
Body Lower Time - Float
13s
Body Lower Time - High Idle
13s

Suspension

Rear axle - Oscillation
5.4°
Empty Loaded Cylinder Stroke Front
2.9in
Empty Loaded Cylinder Stroke Rear
2.5in

Capacity - Coal Bodies - 100% Fill Factor

SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3)
165yd³
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)
139yd³
SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3)
116yd³
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)
144yd³

Capacity - X Body - 100% Fill Factor

Heaped 2:1 (SAE)
83.8yd³
Struck
56.3yd³

Steering

Turning Diameter - Front
83ft
Steering Standards
SAE J1511 FEB94 ISO 5010:1992
Steer Angle
30.5°
Turning Circle - Clearance Diameter
93ft

Tires

Standard Tire
27.00R49 (E4)

Standard Equipment

  • Power Train
    • Autostall
    • Engine idle shutdown
    • Air-To-Air Aftercooler (ATAAC)
    • Air cleaner with precleaner (2)
    • Automatic cold mode idle control
    • Electric priming pump
    • Electric cold weather start (two starters and four batteries)
    • Ether starting aid
    • Exhaust, muffler
    • Fuel filter/water separator
    • Turbocharger (2)
    • Braking system: - Brake wear indicator - Automatic Retarder Control (ARC) (utilizes oil-cooled, multiple disc brakes) - Brake release motor (towing) - Manual retarder (utilizes oil cooled, multiple disc brakes) - Oil-cooled, multiple disc (front/rear) - Parking - Secondary - Service
    • Transmission: - Auto neutral idle - APECS Software - ECPC
    • Part Throttle Shifting: - 7 speed automatic powershift with Torque Shift Management electronic clutch pressure control - Body up shift inhibitor - Directional shift management - Downshift inhibitor - Neutral start switch - Neutral coast inhibitor - Reverse shift inhibitor - Reverse neutralizer during dumping - Programmable top gear selection
  • Suspension Systems
    • Suspension, rear
  • Electrical
    • Alarm, backup
    • Alternator, 115 ampere
    • Auxiliary jump start receptacle
    • Batteries, maintenance-free, 12V (4), 190 amp-hour
    • Electrical system, 25 AMP, 24V to 12V converter
    • Lighting system: - Backup light (halogen) - Directional signals/hazard warning, (front and rear LED) - Headlights, (halogen) with dimmer - Payload, indicator lights - Operator access courtesy lights - Side profile lights - Stop/tail lights (LED) - Service lights
  • Operator Environment
    • Air conditioning
    • Ashtray and cigarette lighter
    • Coat hook
    • Cup holders (4)
    • Diagnostic connection port, 24V
    • Entertainment Radio Ready: - 5 amp converter - Speakers - Antenna - Wiring harness
    • Gauges/indicators: - Brake oil temperature gauge - Coolant temperature gauge - Hour meter - Tachometer - Engine overspeed indicator - Fuel level - Speedometer with odometer - Transmission gear indicator
    • Heater/defroster (11 070 kCal/43,930 BTU)
    • Auto temp control
    • Fluid level monitoring
    • Hoist lever
    • Horn, electric
    • Light - dome
    • Light - courtesy
    • Load counter, automatic
    • Advisor display
    • VIMS
    • TPMS
    • Foot rest
    • Mirrors - heated
    • Power port, 24V and 12V (2)
    • ROPS cab, insulated/sound suppressed
    • Cat Comfort Series III: - Full air suspension - Retractable 3 point seat belt with shoulder harness
    • Steering wheel, padded, tilt and telescopic
    • Storage compartment
    • Sun visor
    • Throttle lock
    • Window, right side, hinged access/egress
    • Electric left side window control
    • Windshield wiper (intermittent) and washer
    • Tinted, laminated glass
  • Technology Products
    • Product Link Ready (Level 1)
    • TKPH/TMPH (Tons Kilometer Per Hour/Tons Mile Per Hour)
    • Object Detection (4 cameras, 4 radars)
    • Adaptive economy mode
  • Guards
    • Engine crankcase
    • Driveline
    • Fan and A/C
  • Fluids
    • Extended Life Coolant to -35° C (-30° F)
  • Other Standard Equipment
    • Body mounting group
    • Body safety pin (secures body in up position)
    • Body down indicator
    • CD ROM parts book
    • Center mounted rims
    • Fuel tank (1136 L/300 gal)
    • Ground level battery disconnect
    • Ground level engine shutdown
    • Ground level grease fittings
    • Reservoirs (separate): - Brake/hoist - Steering - Transmission/torque converter
    • Rims 19.5 × 49
    • Rock ejectors
    • Supplemental steering (automatic)
    • Tie down eyes
    • Tow hooks (front)/Tow pin (rear)
    • Vandalism protection locks
    • Wiggins fast fuel
    • Traction Control System (new version)
    • Attachment Zone