785D 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 (WTR models) can be ordered with or wihout 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 equipment every step of the way. The Cat Water Delivery System (WDS) is available as an optional attachment with the 777G WTR and 785D 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.

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Top Speed - Loaded
34.0 mph
Steer Angle
36.0 Degrees
Machine Clearance Turning Diameter
108.9 ft
Maximum Target Payload
157.0 tons

Product Specs

Operating Specifications

Top Speed - Loaded
34.0mph
Steer Angle
36.0Degrees
Machine Clearance Turning Diameter
108.9ft
Maximum Target Payload
157.0tons
Turning Diameter - Front
97.7ft
Nominal Water Tank Capacity
30000gal

Engine

Engine Model
Cat® 3512C HD
Gross Power - SAE J1995
1450.0hp
Rated Power
1450.0hp
Net Power - Cat
1348.0hp
Net Power - ISO 9249
1348.0hp
Net Power - 80/1269/EEC
1348.0hp
Torque Rise
23.0%
Bore
6.7in
Stroke
8.4in
Displacement
3573.6in3
Net Power
1348.0hp
Net Power - SAE J1349
1348.0hp

Weights - Approximate

Gross Machine Operating Weight (GMW)
550000.0lb

Transmission

Forward 1
7.5mph
Forward 2
10.2mph
Forward 3
13.8mph
Forward 4
18.6mph
Forward 5
25.2mph
Forward 6
34.0mph
Reverse
6.8mph

Final Drives

Differential Ratio
2.10:1
Planetary Ratio
10.83:1
Total Reduction Ratio
22.75:1

Suspension

Effective Cylinder Stroke - Front
12.1in
Effective Cylinder Stroke - Rear
6.5in

Brakes

Brake Surface - Rear
13908.0in2
Standards
SAE J1473 OCT90 ISO 3450-1985
Brake Surface - Front
9497.0in2

Hoists

Pump Flow - High Idle
198.0gal/min
Relief Valve Setting - Raise
2500.0psi
Raise Time - High Idle
15.2Seconds
Lower Time - Float
16.2Seconds
Power Down - High Idle
15.9Seconds
Lower Time - High Idle
15.9Seconds

Service Refill Capacities

Fuel Tank (standard)
500.0gal
Cooling System
100.0gal
Crankcase
54.0gal
Steering Tank
24.0gal
Steering System (Includes Tank)
31.0gal
Brake/Hoist Hydraulic Tank
89.0gal
Brake/Hoist System (Includes Tank)
169.0gal
Differential and Final Drives
115.0gal
Torque Converter/Transmission System (Includes Sump)
65.51gal

Tires

Standard Tires
33.00-R51 (E3 & E4)

Sound

Sound Standards
ANSI/SAE J1166 MAY90 SAE J88 APR95

Steering

Steering Standards
SAE J1511 OCT90 ISO 5010:1992

ROPS

ROPS Standards
SAE J1040 APR88 ISO 3471:1994
Tractor ROPS
207234lbs

Weights

Tier 4 Bare Chassis Weight with Hoist
180827lb
Tier 4 Gross Vehicle Weight (Target) with Hoist
550000lb
Tier 4 Bare Chassis Weight without Hoist
177309lb
Tier 4 Gross Vehicle Weight (Target) without Hoist
550000lb

Benefits & Features

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.

Standard/Optional Features

Standard Equipment:

  • For bare chassis standard and optional equipment, please reference the 785D Off-Highway Truck. For more information on 785D WTR Bare Chassis options, please contact Caterpillar OEM Solutions at oemsolutions@cat.com.

Optional Equipment: