777 Off-Highway Truck 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 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.

Nominal Payload Class (100%)
98.4 tons
Engine Model
Cat® C32 ACERT™
Top Speed - Loaded
41.7 mph
Net Power - SAE J1349
916.0 hp

Specs

Operating Specifications

Nominal Payload Class (100%)
98.4tons
Top Speed - Loaded
41.7mph
Nominal Payload (100%)
98.4tons
Nominal Water Tank Capacity
20000gal
Nominal Water Tank Capacity
20000gal (US)

Engine

Engine Model
Cat® C32 ACERT™
Net Power - SAE J1349
916.0hp
Net Power - 80/1269/EEC
916.0hp
Net Power - ISO 9249
916.0hp
Cylinders
12
Engine Power - ISO 14396
1008.0hp
Engine Speed
1800.0RPM
Net Torque
3899.0ft-lb
Peak Torque Speed
1200.0RPM
Gross Power - SAE J1995
1025HP
Bore
5.7in
Stroke
6.4in
Displacement
1959in³
Engine Model
Cat® C32B
Rated Net Power - SAE J1349
916HP
Rated Engine Speed
1800r/min
Number of Cylinders
12
Note
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.

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
Brake Surface - Front
6331in²
Brake Surface - Rear
15828in²

Service Refill Capacities

Fuel Tank
300.0gal
Brake Hoist System (Includes Tank)
117.0gal
Differentials
59.9gal
Final Drives (each)
20.0gal
Fuel Tank
350.0gal
Cooling System
63.4gal (US)
Steering System - Including Tank
14.1gal (US)
Brake Hoist System
85gal (US)
Crankcase
28.7gal (US)
Torque Converter - Transmission System
36.5gal (US)
Fuel Tank Capacity
300gal (US)
Brake/Hoist Hydraulic Tank
117gal (US)

Hoists

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

Steering

Turning Diameter - Front
83.0ft
Steering Standards
ISO 5010:2007
Steer Angle
30.5°
Turning Circle - Clearance Diameter
93ft
Turning Diameter
83ft

Tires

Standard Tire
27.00R49 (E4)

Sound

Sound Standards
Standards

Transmission

Forward - 1
6.6mile/h
Forward - 2
9.1mile/h
Forward - 3
11.9mile/h
Forward - 4
16.6mile/h
Forward - 5
22.5mile/h
Forward - 6
30.2mile/h
Forward - 7
40.9mile/h
Reverse
7.5mile/h

ROPS

Tractor ROPS
133082lb
Tractor ROPS
133082lbs

Weights

LRC Bare Chassis Weight with Hoist
114067lb
LRC Gross Vehicle Weight (Target) with Hoist
363000lb
LRC Bare Chassis Weight without Hoist
111505lb
LRC Gross Vehicle Weight (Target) without Hoist
363000lb
Tier 4 Bare Chassis Weight with Hoist
115218lb
Tier 4 Gross Vehicle Weight (Target) with Hoist
363000lb
Tier 4 Bare Chassis Weight without Hoist
112656lb
Tier 4 Gross Vehicle Weight (Target) without Hoist
363000lb
Tier 4 Bare Chassis Weight without Hoist
112656lb
LRC Bare Chassis Weight with Hoist
114067lb
LRC Bare Chassis Weight without Hoist
111505lb
LRC Gross Vehicle Weight (Target) with Hoist
363000lb
LRC Gross Vehicle Weight (Target) without Hoist
363000lb
Tier 4 Bare Chassis Weight with Hoist
115218lb
Tier 4 Gross Vehicle Weight (Target) with Hoist
363000lb
Tier 4 Gross Vehicle Weight (Target) without Hoist
363000lb
HRC Bare Chassis Weight without Hoist
112656lb
HRC Bare Chassis Weight with Hoist
115218lb
HRC Gross Vehicle Weight (Target) without Hoist
363000lb
HRC Gross Vehicle Weight (Target) with Hoist
363000lb
Note
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.

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.

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.

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.

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.

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 Equipment

  • For bare chassis standard and optional equipment, please reference the 777 Off-Highway Truck. For more information on 777 WTR Bare Chassis options, please contact Caterpillar OEM Solutions at oemsolutions@cat.com.

Optional Equipment