773G Off-Highway Truck

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.

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Nominal Payload Class (100%)
61.0 tons
Engine Model
Cat® C27 ACERT™
Top Speed - Loaded
41.6 mph
Rated Engine Speed
1800.0 RPM

Product Specs

Operating Specifications

Nominal Payload Class (100%)
61.0tons
Top Speed - Loaded
41.6mph
Nominal Water Tank Capacity
13000gal

Engine

Engine Model
Cat® C27 ACERT™
Rated Engine Speed
1800.0RPM
Gross Power - SAE J1995
775.0hp
Net Power - SAE J1349
717.0hp
Net Power - 80/1269/EEC
724.0hp
Net Power - ISO 9249
724.0hp
Bore
5.4in
Stroke
6.0in
Displacement
1648.0in3
Engine Power - ISO 14396
762.0hp
Net Torque
2944.0ft-lb
Peak Torque Speed
1200.0RPM

Transmission

Forward 1
6.6mph
Forward 2
9.3mph
Forward 3
12.6mph
Forward 4
16.8mph
Forward 5
22.8mph
Forward 6
30.7mph
Forward 7
41.6mph
Reverse
8.7mph

Final Drives

Differential Ratio
3.64:1
Planetary Ratio
4.80:1
Total Reduction Ratio
17.49:1

Brakes

Brake Surface - Front
257.0in2
Brake Surface - Rear
9497.0in2
Brake Standards
ISO 3450:1996

Service Refill Capacities

Fuel Tank
210.0gal
Cooling System
45.0gal
Differentials and Final Drives
38.0gal
Steering Tank
9.5gal
Steering System (Includes Tank)
14.0gal
Brake Hoist System
85.0gal
Brake/Hoist Hydraulic Tank
46.5gal
Crankcase
24.0gal
Torque Converter/Transmission System HRC
18.0gal
Torque Converter/Transmission System LRC
16.0gal

Hoists

Pump Flow - High Idle
118.0gal/min
Relief Valve Setting - Raise
2502.0psi
Relief Valve Setting - Lower
500.0psi
Raise Time - High Idle
10.0Seconds
Lower Time - Float
14.0Seconds
Power Down - High Idle
14.0Seconds

Suspension

Rear Axle Oscillation
8.1Degrees
Empty Loaded Cylinder Stroke Front
9.2in
Empty Loaded Cylinder Stroke Rear
5.8in

Weights - Approximate

Maximum Gross Vehicle Weight
226503.0lb

Steering

Turning Diameter - Front
77.1ft
Steering Standards
SAE J1511 FEB94 ISO 5010:1992
Steer Angle
31.0Degrees
Turning Circle Clearance Diameter
85.6ft

Tires

Standard Tire
24.00R35 (E4)

ROPS

Tractor ROPS
85288lbs

Sound

Sound Standards
Standards

Weights

LRC Bare Chassis Weight with Hoist
76139lbs
LRC Gross Vehicle Weight (Target) with Hoist
226503lb
LRC Bare Chassis Weight without Hoist
74931lb
LRC Gross Vehicle Weight (Target) without Hoist
226503lb
Tier 4 Bare Chassis Weight with Hoist
77583lb
Tier 4 Gross Vehicle Weight (Target) with Hoist
226503lb
Tier 4 Bare Chassis Weight without Hoist
76375lb
Tier 4 Gross Vehicle Weight (Target) without Hoist
226503lb

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 773G Off-Highway Truck. For more information on 773G WTR Bare Chassis options, please contact Caterpillar OEM Solutions at oemsolutions@cat.com.

Optional Equipment: