Off-Highway Trucks:

777G Off-Highway Truck

Nominal Payload Class (100%)
98.4 tons
Engine Model
Cat® C32 ACERT™
Top Speed - Loaded
41.7 mph
Gross Power - SAE J1995
1025.0 hp

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.



Benefits & Features

Product Specs

  • Operating Specifications

  • Nominal Payload Class (100%)
    98.4tons
    Top Speed - Loaded
    41.7mph
    Not to Exceed Payload (120%)*
    118.1tons
    Body Capacity - SAE 2:1
    83.8yd3
    Maximum Payload (110%)
    108.2tons
    Nominal Payload (100%)
    98.4tons
  • Engine

  • Engine Model
    Cat® C32 ACERT™
    Gross Power - SAE J1995
    1025.0hp
    Net Power - SAE J1349
    916.0hp
    Net Power - 80/1269/EEC
    916.0hp
    Net Power - ISO 9249
    916.0hp
    Bore
    5.7in
    Stroke
    6.4in
    Displacement
    1959.0in3
    Cylinders
    12
    Engine Power - ISO 14396
    1008.0hp
    Engine Speed
    1800.0RPM
    Net Torque
    3899.0ft-lb
    Peak Torque Speed
    1200.0RPM
  • Capacity - Dual Slope - 100% Fill Factor

  • Struck
    54.8yd3
    Heaped 2:1 (SAE)
    78.8yd3
  • Weight Distributions - Approximate

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

  • Forward 1
    6.8mph
    Forward 2
    9.2mph
    Forward 3
    12.5mph
    Forward 4
    16.9mph
    Forward 5
    22.9mph
    Forward 6
    30.7mph
    Forward 7
    41.7mph
    Reverse
    7.7mph
  • Final Drives

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

  • Brake Standards
    ISO 3450:1996
    Brake Surface Area - Front
    6331.0in2
    Brake Surface Area - Rear
    15828.0in2
  • Service Refill Capacities

  • Fuel Tank
    300.0gal
    Cooling System
    63.4gal
    Steering System (Includes Tank)
    14.1gal
    Brake Hoist System
    85.0gal
    Brake Hoist System (Includes Tank)
    117.0gal
    Crankcase
    28.7gal
    Differentials
    59.9gal
    Final Drives (each)
    20.0gal
    Fuel Tank
    350.0gal
    Torque Converter/Transmission System
    36.5gal
  • Body Hoists

  • Pump Flow - High Idle
    120.9gal/min
    Relief Valve Setting - Raise
    2750.0psi
    Relief Valve Setting - Lower
    500.0psi
    Body Raise Time - High Idle
    15.0Seconds
    Body Lower Time - Float
    13.0Seconds
    Body Lower Time - High Idle
    13.0Seconds
  • Suspension

  • Rear Axle Oscillation
    5.4Degrees
    Empty Loaded Cylinder Stroke Front
    2.9in
    Empty Loaded Cylinder Stroke Rear
    2.5in
  • Weights - Approximate

  • Target Gross Machine Weight
    363000.0lb
  • Capacity - Coal Bodies - 100% Fill Factor

  • SAE 2:1 for use with material densities less than 950 kg/m3 (1,600 lb/yd3)
    165.0yd3
    SAE 2:1 for use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)
    139.0yd3
    SAE 2:1 for use with material densities of 1160 kg/m3 (1,950 lb/yd3)
    116.0yd3
    SAE 2:1 for use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)
    144.0yd3
  • Capacity - X Body - 100% Fill Factor

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

  • Turning Diameter - Front
    83.0ft
    Steering Standards
    SAE J1511 FEB94 ISO 5010:1992
    Steer Angle
    30.5Degrees
    Turning Circle Clearance Diameter
    93.0ft
  • Tires

  • Standard Tire
    27.00R49 (E4)
  • ROPS

  • ROPS/FOPS Standards
    Standards
  • Sound

  • Sound Standards
    Standards

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
  • 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)

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