2025 Caterpillar Off-Highway Trucks Bare Chassis 770
- Year 2025
- Make Caterpillar
- Model Off-Highway Trucks Bare Chassis
2025 Caterpillar Off-Highway Trucks Bare Chassis 770
2025 Caterpillar Off-Highway Trucks Bare Chassis 770
Off-Highway Trucks Bare Chassis770 Bare Chassis
Customization to Work for Your Application.
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.
These models come equipped with a higher Tractor ROPS certification for specialty machines including water trucks, tow trucks, and fuel / lube trucks. You'll find these partial machine configurations are used in construction, demolition, waste, material handling, and mining industries. These bare chassis options allow you to purchase complete solutions from your Cat dealer, with additional service and support.
Features may include:
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 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 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 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.
Engine
Engine Manufacturer
Cat®
Cylinder Liners
6
Engine Type
Model: C15
Engine Power
Gross - SAE J1995: 515 hp | Net - SAE J1349: 477 hp| Net - ISO 9249: 916 HP | ISO 14396: 1008 HP
Bore
5.4 in
Stroke
6.7 in
Displacement
927.6 in³
Drivetrain
Gear Ratios (overall) 1st
Forward - 1: 7.4 mile/h
Gear Ratios (overall) 2nd
Forward - 2: 10.1 mile/h
Gear Ratios (overall) 3rd
Forward - 3: 13.8 mile/h
Gear Ratios (overall) 4th
Forward - 4: 18.5 mile/h
Gear Ratios (overall) 5th
Forward - 5: 25.1 mile/h
Gear Ratios (overall) 6th
Forward - 6: 33.8 mile/h
Gear Ratio (Primary)
Forward - 7: 45.8 mile/h
Gear Ratio (Reverse, Low)
8.8 mile/h
Compression Ratio
Differential Ratio: 2.736:1 | Planetary Ratio: 7.0:1 | Total Reduction Ratio: 19.1576:1
Steering Angle, Left
40.5 °
Steering Angle, Right
40.5 °
Wheels & Tires
Tires, Front Specification
Standard: 27.00R49 (E4)
Tires, Rear Specification
Standard: 27.00R49 (E4)
Operational
Operating Speed
Peak Torque: 1200 r/min | Engine: 1700 r/min | Top Speed - Loaded: 40.9 mile/h
Operating Conditions
Brake Surface Area - Front: 216 in² | Brake Surface Area - Rear: 6235 in² | Body Raise Time - High Idle: 15 s | Body Lower Time - Float: 13 s | Body Lower Time - High Idle: 13 s | Weight Distributions (Dual Slope): Front Axle-Empty - 46% / Rear Axle-Empty - 54% / Front Axle-Loaded - 33 % / Rear Axle-Loaded - 67 %
Hydraulics
Hydraulic Flow
Pump - High Idle: 120.9 gal/min | Brake/Hoist Tank: 38 gal (US)
Relief Valve Setting
Raise: 2750 psi | Lower: 500 psi
Dimensions
Dimensions
Rear axle - Oscillation: 5.4 °
Turning Radius
Diameter: 57.7 ft | Circle - Clearance Diameter: 66.6 ft
Stroke
Empty Loaded Cylinder Front: 2.9 in | Empty Loaded Cylinder Rear: 2.5 in
Capacities
Features
Steering System - Including Tank: 23 gal (US) | Differentials: 47 gal (US) | Brake Hoist System: 60 gal (US) | Final Drive - Each: 20 gal (US) | Crankcase: 17 gal (US)
Volume
Body Capacity - SAE 2:1: 83.1 yd³ | Struck: 54.8 yd³ | Heaped 2:1 (SAE): 78.8 yd³ | Heaped (SAE 2:1): 78.6 yd³ | Heaped 2:1 (SAE) (X Body): 83.8 yd³ | Struck (X Body): 56.3 yd³ | SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3): 144 yd³ | SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3): 164.6 yd³ | SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3): 139 yd³ | SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3): 116.8 yd³
Fresh Water Capacity
Nominal Water Tank: 9000 gal (US)
Axle Capacity, Front
Empty: 42 % | Loaded: 33 %
Axle Capacity, Rear
Empty: 58 % | Loaded: 67 %
Fuel Capacity
Tank: 140 gal (US)
Payload Capacity
Nominal Class (100%): 101.1 ton (US) | Maximum Working (110%): 111.2 ton (US) | Maximum Allowable (120%): 121.3 ton (US) | Target (100%): 98.4 ton (US)
Cooling System
33 gal (US)
Torque Converter
Transmission System: 17 gal (US) | Net Torque Rise: Tier 4: 39%. Tier 2: 37%
Weights
Weight
Tractor ROPS: 77430 lb | LRC Bare Chassis without Hoist: 54357 lb | LRC Bare Chassis with Hoist: 55166 lb | HRC Bare Chassis without Hoist: 55510 lb | HRC Bare Chassis with Hoist: 56319 lb
GVWR
LRC Gross Vehicle (Target) with Hoist: 157000 lb | LRC Gross Vehicle (Target) without Hoist: 157000 lb | HRC Gross Vehicle (Target) with Hoist: 157000 lb | HRC Gross Vehicle (Target) without Hoist: 157000 lb
Weight, In Running Order
Target Gross Machine: 363000 lb