Off-Highway Trucks Bare Chassis

777 Off-Highway Truck bare chassis

LRC Bare Chassis Weight without Hoist

111,505 lb

Tractor ROPS

133,082 lb

Nominal Water Tank Capacity

20,000 gal (US)


backhoe loader

777 Off-Highway Truck bare chassis

LRC Bare Chassis Weight without Hoist

111,505 lb

Tractor ROPS

133,082 lb

Nominal Water Tank Capacity

20,000 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 trucks and fuel and lube trucks. These partial machine configurations are used in construction, demolition, waste, material handling, quarry, and mining applications.

The Cat Water Delivery System (WDS) is available as an optional attachment with the 777 WTR, 785D WTR, 789D WTR and 793F WTR Off-Highway Truck Bare Chassis and includes factory installed controls in the cab, a hydraulic pump and motor, a water pump and stainless steel spray heads. Whether your goal is dust control or haul road maintenance, the Cat WDS is designed to put water to the ground in a controlled, intelligent way. The simple to operate automated system allows you to concentrate on more important safety issues like traffic, personnel and road conditions. You'll also find that the Cat WDS not only improves safety, but also reduces truck maintenance costs, conserves water and provides significant fuel savings to help your bottom line.

      • Engine Model

        93.0 in

        93.0 mm

        Cat® C32B

        Gross Power - SAE J1995

        1,025 HP

        765 kW

        Rated Net Power - SAE J1349

        916 HP

        683 kW


        5.7 in

        145 mm


        6.4 in

        162 mm


        1,959 in³

        32.1 l

        Rated Engine Speed

        1,800 r/min

        1,800 r/min

        Number of Cylinders

        93.0 in

        93.0 mm



        93.0 in

        93.0 mm

        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.

      • LRC Bare Chassis Weight without Hoist

        111,505 lb

        50,578 kg

        LRC Bare Chassis Weight with Hoist

        114,067 lb

        51,740 kg

        LRC Gross Vehicle Weight (Target) without Hoist

        363,000 lb

        164,654 kg

        LRC Gross Vehicle Weight (Target) with Hoist

        363,000 lb

        164,654 kg

        HRC Bare Chassis Weight without Hoist

        112,656 lb

        51,100 kg

        HRC Bare Chassis Weight with Hoist

        115,218 lb

        52,262 kg

        HRC Gross Vehicle Weight (Target) without Hoist

        363,000 lb

        164,654 kg

        HRC Gross Vehicle Weight (Target) with Hoist

        363,000 lb

        164,654 kg


        93.0 in

        93.0 mm

        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.

      • Nominal Water Tank Capacity

        20,000 gal (US)

        75,700 l

      • Tractor ROPS

        133,082 lb

        60,365 kg

      • Forward - 1

        6.6 mile/h

        10.7 km/h

        Forward - 2

        9.1 mile/h

        14.6 km/h

        Forward - 3

        11.9 mile/h

        19.2 km/h

        Forward - 4

        16.6 mile/h

        26.7 km/h

        Forward - 5

        22.5 mile/h

        36.2 km/h

        Forward - 6

        30.2 mile/h

        48.6 km/h

        Forward - 7

        40.9 mile/h

        65.9 km/h


        7.5 mile/h

        12.1 km/h

      • Brake Surface - Front

        6,331 in²

        40,846 cm²

        Brake Surface - Rear

        15,828 in²

        102,116 cm²

      • Fuel Tank Capacity

        300 gal (US)

        1,136 l

        Cooling System

        63.4 gal (US)

        240 l


        28.7 gal (US)

        109 l

        Steering System - Including Tank

        14.1 gal (US)

        53.6 l

        Brake/Hoist Hydraulic Tank

        117 gal (US)

        444 l

        Brake Hoist System

        85 gal (US)

        322 l

        Torque Converter - Transmission System

        36.5 gal (US)

        138.5 l

      • Steering Standards

        93.0 in

        93.0 mm

        ISO 5010:2007

        Steer Angle

        30.5 °

        30.5 °

        Turning Diameter

        83 ft

        25.3 m

        Turning Circle - Clearance Diameter

        93 ft

        28.4 m

      • For more information on 777 WTR Bare Chassis options, please contact Caterpillar OEM Solutions at

        • For more information on 777 WTR Bare Chassis options, please contact Caterpillar OEM Solutions at

      • NOTE


        • Quick Evac

        • Air-To-Air Aftercooler (ATAAC)

        • Engine idle shutdown

        • Turbocharger (2)

        • Automatic cold mode idle control

        • Fuel filter / water separator

        • Air cleaner with precleaner (1)

        • Electric priming pump

        • Automatic Retarder Control (ARC)

        • Braking system: Manual retarder (utilizes rear oil-cooled, multiple disc brakes), Brake release motor (towing), Front brake disconnect switch (front), Oil-cooled, multiple disc (front / rear), Brake wear indicator, Parking, Secondary, Service

        • Transmission: 7 speed automatic powershift with electronic clutch pressure control Advanced productivity electronic control strategy (APECS), Automatic neutral idle, Autostall, Second gear start

        • APECS software: ECPC, part throttle shifting

        • Electronic clutch pressure control

        • Body upshift inhibitor

        • Directional shift management

        • Reverse neutralizer during dumping

        • Neutral start switch

        • Downshift inhibitor

        • Neutral cost inhibitor

        • Reverse shift inhibitor

        • Programmable top gear selection


        • Alarm backup

        • Alternator, 115 amp

        • Batteries, maintenance-free, 12V, 190 amp-hour

        • 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 (halogen) with dimmer, operator access courtesy lights, side profile lights, stop/tail lights (LED)


        • 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, electric

        • Light - dome

        • Light - courtesy

        • 7-inch touchscreen display

        • Mirrors (heated)

        • Power port, 24V and 12V

        • ROPS certification ISO tractor

        • Cat Next Generation Deluxe Seat: full air suspension, heated, retractable 4 point seat belt with shoulder harness

        • Seat (training) with lap belt

        • Steering wheel, padded, tilt and telescopic

        • Storage compartment

        • Sun visor, tinted / laminated glass

        • 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

        • Operator Maintenance Manual (OMM)

        • Rims 19.5 x 49

        • Supplemental steering (automatic)

        • Tie down eyes

        • Tow hooks, front/tow pin, rear

        • Vandalism protection locks


        • Product Link Ready

        • Adaptive Economy Mode

        • Payload System (TPMS)

        • Vital Info Management System (VIMS)

        • Object Detection


        • Extended life coolant, -35° C (-30° F)

        • Grouped ground-level filters

      • NOTE


        • Auto Lube

        • Rear vision camera (WAVS)

        • Wheel chocks

        • Payload indicator (lights only)

        • Payload indicator (display)

        • Fire suppression arrangement


        • Product Link

        • Traction Control System


        • Variable Hydraulic Pump Drive: 1,200 gpm at speeds of 3 to 25 mph with auto shut-off and soft startup

        • Water System Monitor: integrated into cab, programmable spray configurations, automatic diagnostic messages

        • Controls: Factory installed and integrated into cab

        • Stainless Steel Spray Heads: maintenance free, patented design resists corrosion

        • Water Cannon: hydraulically controlled, integrated joystick with cab controls, optional nozzles

        • Independent Hydraulic Cooling System: minimizes overheating

        • Parts & service available through global Cat dealer network


      • Every purchase backed by a full menu of service and support offerings

      • Flexible financing options designed to fit your budget

      • Commitment to providing expert training to maximize operations

      • Value Agreements to ensure proper maintenance and performance