Off-Highway Trucks Bare Chassis

770G Off-Highway Truck

LRC Bare Chassis Weight without Hoist

54,357 lb

Tractor ROPS

77,430 lb

Nominal Water Tank Capacity

9,000 gal (US)


Caterpillar offers partial machines and systems, working with Cat dealers and Original Equipment Manufacturers (OEMs) to provide specialty machines for specific applications. Bare chassis trucks (WTR models) can be ordered with or without hoist cylinders and most product options are identical to the dump truck models. Typically, these models come equipped with the higher Tractor ROPS certification ratings needed for specialty machines including water trucks, tow tractors and fuel and lube trucks. You'll find these partial machine configurations are used in construction, demolition, waste, material handling, and mining industries and allow you to purchase complete solutions from your Cat dealer, using Cat equipment every step of the way.


    Brake Surface - Front

    216 in²

    Brake Surface - Rear

    6,235 in²


    Engine Model

    Cat® C15

    Rated Engine Speed

    1,700 r/min

    Gross Power - SAE J1995

    515 HP

    Rated Net Power - SAE J1349

    477 HP

    Number of Cylinders



    5.4 in


    6.7 in


    927.6 in³


    Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.

    Operating Specifications

    Nominal Water Tank Capacity

    9,000 gal (US)


    Tractor ROPS

    77,430 lb

    Service Refill Capacities

    Fuel Tank Capacity

    140 gal (US)

    Cooling System

    33 gal (US)


    17 gal (US)

    Differential - Final Drives

    47 gal (US)

    Steering System - Including Tank

    23 gal (US)

    Brake/Hoist Hydraulic Tank

    38 gal (US)

    Brake Hoist System

    60 gal (US)

    Torque Converter - Transmission System

    17 gal (US)


    Steering Standards

    ISO 5010:2007

    Steer Angle

    40.5 °

    Turning Diameter

    57.7 ft

    Turning Circle - Clearance Diameter

    66.6 ft


    Forward - 1

    7.4 mile/h

    Forward - 2

    10.1 mile/h

    Forward - 3

    13.8 mile/h

    Forward - 4

    18.5 mile/h

    Forward - 5

    25.1 mile/h

    Forward - 6

    33.8 mile/h

    Forward - 7

    45.8 mile/h


    8.8 mile/h


    Maximum travel speeds with standard 18.00R33 (E4) tires.


    LRC Bare Chassis Weight without Hoist

    54,357 lb

    LRC Bare Chassis Weight with Hoist

    55,166 lb

    LRC Gross Vehicle Weight (Target) with Hoist

    157,000 lb

    LRC Gross Vehicle Weight (Target) without Hoist

    157,000 lb

    HRC Bare Chassis Weight without Hoist

    55,510 lb

    HRC Bare Chassis Weight with Hoist

    56,319 lb

    HRC Gross Vehicle Weight (Target) with Hoist

    157,000 lb

    HRC Gross Vehicle Weight (Target) without Hoist

    157,000 lb


    LRC model is offered for lesser regulated countries. HRC model is offered for highly regulated countries. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.

    • For more information on 770G WTR Bare Chassis options, please contact Caterpillar OEM Solutions at
    • NOTE
      • Standard and optional equipment may vary. Consult your Cat dealer for details.
      • Air-To-Air Aftercooler (ATAAC)
      • Air cleaner with precleaner (1)
      • Automatic cold mode idle control
      • Electric start
      • Engine idle shutdown
      • Ether started aided
      • Exhaust muffler
      • Global off-highway aluminium radiator
      • Braking System: Automatic Retarder Control (ARC), Manual retarder (utilizes rear oil-cooled,
        multiple disc brakes), Brake release motor (towing), Dry disc brakes (front), Front brake disconnect switch (front), Oil-cooled, multiple disc (rear), Brake wear indicator, Parking, secondary, service brake
      • Transmission: 7 speed automatic powershift with electronic clutch pressure control, Advanced productivity electronic control strategy (APECS), Automatic neutral idle, Autostall, Second gear start
      • Alarm backup
      • Alternator, 120 amp
      • Auxiliary jump start receptable
      • Batteries, maintenance-free, 12V, 1400 CCA combined
      • Electrical system, 25 amp, 24V to 12V converter
      • Lighting System: Backup light (halogen), Directional signals/hazard warning (front and
        rear LED), Engine compartment light, Headlights with dimmer, Side profile lights, Operator access courtesy lights, Stop/tail lights (LED)
      • Battery jump start
      • Breakers, electrical
      • Lockout switch
      • Ports, ET and VIMS
      • Service lockout switch (power without engine start)
      • Air conditioning/heat
      • Ashtray and cigarette lighter
      • Automatic tempature control
      • Coat hook
      • Cup holders (4)
      • Diagnostic connection port, 24V
      • Entertainment radio ready: 5 amp converter, Speakers, Antenna, Wiring harness
      • Gauges and indicators panel: Air cleaner service indicator - electronic, Brake oil temperature gauge, Coolant temperature gauge, Hour meter, Tachometer, Engine overspeed indicator, Fuel level, Speedometer with odometer, Transmission gear indicator
      • Hoist lever
      • Horn
      • Light - dome
      • Light - courtesy
      • Load counter, automatic
      • Mirrors (heated)
      • Power port, 24V and 12V
      • ROPS cab, insulated/sound suppressed
      • Cat Deluxe Seat: full air suspension, heated/ventilated, retractable 4 point seat belt with shoulder
      • Seat (training) with lap belt
      • Steering wheel, padded, tilt and telescopic
      • Storage compartment
      • Sun visor
      • Throttle lock
      • Window, sliding, right side (Emergency exit)
      • Window, powered, left side
      • Windshield wiper (intermittent) and washer
      • Guards: Driveline, Engine crankcase, Fan and air conditioner
      • Body down indicator
      • Center mounted rims
      • Ground level battery disconnect
      • Ground level engine shutdown
      • Ground level grease fittings
      • Rims 13 x 33
      • Secondary steering (electric)
      • Tie down eyes
      • Tow hooks, front/tow pin, rear
      • Vandalism protection locks
      • Product Link Ready
      • Economy Modes (standard and adaptive)
      • Payload System (TPMS)
      • Vital Info Management System (VIMS)
      • Tire monitoring system (TKPH/TMPH)
      • Extended life coolant, -35° C (-30° F)
      • Grouped ground-level filters

      • Auto Lube
      • Rear vision camera (WAVS)
      • Wheel chocks
      • Payload readout
      • Payload indicator (display)
      • Product Link
      • Traction Control System


    • Machines built tough and ready to run in rugged applications

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