789D Bare Chassis

789D WTR Bare Chassis

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 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 higher Tractor ROPS certification ratings needed for specialty machines including water trucks, tow tractors, and fuel / 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 on the 789D 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.

Tractor ROPS Rating

  • Cat® Off-Highway Truck Bare Chassis ROPS is certified to ISO 3471 Tractor criteria, to provide a higher level of protection for towing applications.

Water Truck Applications

  • Cat Off-Highway Truck Bare Chassis are rugged and reliable platforms for water truck applications in both mining and construction projects.
  • Using an off-highway truck bare chassis provides a solution that is ideal for dust suppression, road construction, fire protection, and other applications.
  • Caterpillar works with OEMs worldwide to match the appropriate bare chassis machine to the water truck application, all through your local Cat dealer, to provide the best solution for your business.

Service Truck Applications

  • Cat Off-Highway Truck Bare Chassis are rugged and reliable platforms for service truck applications in both mining and construction projects.
  • Using an off-highway truck bare chassis provides a solution that is ideal for delivering fuel and preventive maintenance lubrication to your site's machine fleet.
  • Caterpillar works with OEMs worldwide to match the appropriate bare chassis machine to the service truck application, all through your local Cat dealer, to provide the best solution for your business.

Tow Applications

  • Cat Off-Highway Truck Bare Chassis are rugged and reliable platforms for tow applications.
  • Using an off-highway truck bare chassis provides a solution that is ideal for equipment trailers and bottom dump trailers.
  • Caterpillar works with OEMs worldwide to match the appropriate bare chassis machine to the tow application, all through your local Cat dealer, to provide the best solution for your business.

Documents & Brochures

Standard Equipment

For bare chassis standard and optional equipment, please reference the 789D Off-Highway Truck. For more information on 789D Bare Chassis options, please contact Caterpillar OEM Solutions at [email protected].
    POWERTRAIN
    • Cat 3516C HD-EUI diesel engine: Ground level engine shutdown, Ether starting aid (automatic), Aftercooler (separate circuit or air to air), Elevated low idle control, Automatic starter protection, Multi-point oil pressure sensing
    • Braking System: Brake release motor (towing), Oil-cooled, Multiple-disc (front and rear) - service, retarding, parking, secondary, Automatic retarder control, Engine overspeed protection, Extended life brake disc
    • Transmission: 6-speed automatic powershift with electric control (TCC), Body-up shift inhibitor, Controlled throttle shifting, Directional shift management, Downshift/reverse shift inhibitor, Individual clutch modulation, Neutral coast inhibitor/start switch, Body-up reverse neutralizer, Programmable top gear, Lock-up torque convertor, Caterpillar flexible core radiator
    • Extended life coolant to -35° C (-30° F)
    ELECTRICAL
    • Alarm, Back-up
    • Alternator, 105 ampere
    • Batteries, 12V (2), 93 amp/hour
    • Converter, 12V electrical
    • Electrical system, 24V, 15 amp
    • Lighting System, LED: Backup and hazard lights, Directional signals, front and rear, Headlights amd foglights, Lo-hi beam selector, Left-hand ladder/service deck, Stop/tail lights, Engine compartment, VIMS, blue light
    • Payload, indicator lights
    OPERATOR ENVIRONMENT
    • Air Conditioner
    • Auxiliary power connection/cigarette lighter
    • Diagnostic connection port
    • Dome courtesy light
    • Entertainment radio ready: 5 amp converter, speakers, antenna, wiring harness
    • Gauges/Indicators: Air cleaner service indicator, Quad gauge panel: Air pressure, Brake oil temperature, Engine coolant temperature, Fuel level, Electric engine control fault indicator, Electric hour meter/tachometer, Speedometer, Tachometer, Transmission gear indicator, VIMS message center with universal gauge, VIMS keypad, Heater/defroster
    • Hoist, body control (electric)
    • Horn
    • Mirrors, right and left (heated)
    • ROPS cab insulated/sound suppressed
    • Seatbelt, operator, park brake safety / seatbelt trainer
    • Stairway and walkway access, 600 mm
    • Steering wheel, tilt, padded, telescopic
    • Window, electric powered, operator
    • Windshield wiper, intermittent control, and washer
    OTHER EQUIPMENT
    • Grease injector
    • Air line dryer
    • Auto lubrication system
    • Aux "buddy" dumping quick connect
    • Aux steering quick connect (towing)
    • Body mounting group
    • Center mounted rims (6) (29x57)--(Used for 37.00 R57 tires)
    • Driveline guard (fully enclosed)
    • Fast-fill Fuel System
    • Ground level VIMS data port
    • Ground level battery disconnect
    • Rock ejectors
    • Supplemental steering (automatic)
    • Tow hooks (front)/tow pin (rear)
    • Traction control system
    • Vital Info Management System (VIMS)
    • Mounting, Water without Hoist Cylinder
    CAT TECHNOLOGY PRODUCTS
    • Object Detection System (cameras and radar)
    • Product Link Elite

    Additional information

    Offering Type

    Engine Model

    Cat® 3516C HD

    Rated Engine Speed

    1750 r/min ( 1750 r/min )

    Engine - Gross Power - SAE J1995

    1566 kW ( 2100 HP )

    Engine - Rated Net Power - SAE J1349

    1468 kW ( 1969 HP )

    Engine - Bore

    170 mm ( 6.7 in )

    Engine - Stroke

    215 mm ( 8.5 in )

    Engine - Displacement

    78.1 l ( 4766 in³ )

    Engine - Note

    Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.

    Weights - LRC Bare Chassis Weight without Hoist

    101140 kg ( 222975 lb )

    Weights - LRC Bare Chassis Weight with Hoist

    103700 kg ( 228619 lb )

    Weights - LRC Gross Vehicle Weight (Target) with Hoist

    320000 kg ( 705478 lb )

    Weights - LRC Gross Vehicle Weight (Target) without Hoist

    320000 kg ( 705478 lb )

    Operating Specifications - Nominal Water Tank Capacity

    160000 l ( 42288 gal (US) )

    Tractor ROPS

    117000 kg ( 257940 lb )

    Transmission - Forward - 1

    12.6 km/h ( 7.8 mile/h )

    Transmission - Forward - 2

    17.1 km/h ( 10.6 mile/h )

    Transmission - Forward - 3

    23.1 km/h ( 14.4 mile/h )

    Transmission - Forward - 4

    31.2 km/h ( 19.4 mile/h )

    Transmission - Forward - 5

    42.3 km/h ( 26.3 mile/h )

    Transmission - Forward - 6

    57.2 km/h ( 35.5 mile/h )

    Transmission - Reverse

    11.8 km/h ( 7.3 mile/h )

    Transmission - Note

    Maximum travel speeds with standard 37.00-R57 tires

    Brakes - Brake Surface - Front

    81693 cm² ( 12662 in² )

    Brakes - Brake Surface - Rear

    134590 cm² ( 20862 in² )

    Service Refill Capacities - Fuel Tank Capacity

    2082 l ( 550 gal (US) )

    Service Refill Capacities - Cooling System

    725 l ( 192 gal (US) )

    Service Refill Capacities - Crankcase

    291 l ( 77 gal (US) )

    Service Refill Capacities - Differential - Final Drives

    583 l ( 154 gal (US) )

    Service Refill Capacities - Steering System - Including Tank

    189 l ( 50 gal (US) )

    Service Refill Capacities - Brake Hoist System

    909 l ( 241 gal (US) )

    Steering Standards

    ISO 5010:2019

    Steering - Steer Angle

    36 ° ( 36 ° )

    Steering - Turning Diameter

    27.53 m ( 90.32 ft )

    Steering - Turning Circle - Clearance Diameter

    30.23 m ( 99.18 ft )

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