The Cat 777 bare chassis comes equipped with a higher Tractor ROPS certification ratings needed for specialty machines including water trucks, tow trucks, and fuel and lube trucks.

Off-Highway Trucks Bare Chassis 777 Bare Chassis

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Key Specs

LRC Bare Chassis Weight without Hoist: 111505 lb; 50578 kg

Tractor ROPS: 133082 lb; 60365 kg

Nominal Water Tank Capacity: 20000 gal (US); 75700 l

777 Bare Chassis

777 Bare Chassis
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Overview

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 (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.

Features At A Glance

Tractor ROPS Rating

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

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

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

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.

Full Specifications Standard Equipment Optional Equipment

Product Specifications for 777 Bare Chassis

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Engine

Engine Model	Cat® C32B Cat® C32B
Gross Power - SAE J1995	1025 HP 765 kW
Rated Net Power - SAE J1349	916 HP 683 kW
Bore	5.7 in 145 mm
Stroke	6.4 in 162 mm
Displacement	1959 in³ 32.1 l
Rated Engine Speed	1800 r/min 1800 r/min
Number of Cylinders	12 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. 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.

Weights

LRC Bare Chassis Weight without Hoist	111505 lb 50578 kg
LRC Bare Chassis Weight with Hoist	114067 lb 51740 kg
LRC Gross Vehicle Weight (Target) without Hoist	363000 lb 164654 kg
LRC Gross Vehicle Weight (Target) with Hoist	363000 lb 164654 kg
HRC Bare Chassis Weight without Hoist	112656 lb 51100 kg
HRC Bare Chassis Weight with Hoist	115218 lb 52262 kg
HRC Gross Vehicle Weight (Target) without Hoist	363000 lb 164654 kg
HRC Gross Vehicle Weight (Target) with Hoist	363000 lb 164654 kg
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. 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.

Operating Specifications

Nominal Water Tank Capacity

20000 gal (US) 75700 l

ROPS

Tractor ROPS

133082 lb 60365 kg

Transmission

Forward - 1	6.6 mile/h 10.7 km/h
Forward - 2	9.1 mile/h 14.6 km/h
Forward - 3	11.9 mile/h 19.2 km/h
Forward - 4	16.6 mile/h 26.7 km/h
Forward - 5	22.5 mile/h 36.2 km/h
Forward - 6	30.2 mile/h 48.6 km/h
Forward - 7	40.9 mile/h 65.9 km/h
Reverse	7.5 mile/h 12.1 km/h

Brakes

Brake Surface - Front	6331 in² 40846 cm²
Brake Surface - Rear	15828 in² 102116 cm²

Service Refill Capacities

Fuel Tank Capacity	300 gal (US) 1136 l
Cooling System	63.4 gal (US) 240 l
Crankcase	28.7 gal (US) 109 l
Steering System - Including Tank	14.1 gal (US) 53.6 l
Brake/Hoist Hydraulic Tank	117 gal (US) 444 l
Brake Hoist System	85 gal (US) 322 l
Torque Converter - Transmission System	36.5 gal (US) 138.5 l

Steering

Steering Standards	ISO 5010:2007 ISO 5010:2007
Steer Angle	30.5 ° 30.5 °
Turning Diameter	83 ft 25.3 m
Turning Circle - Clearance Diameter	93 ft 28.4 m

777 Bare Chassis Standard Equipment

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For more information on 777 WTR Bare Chassis options, please contact Caterpillar OEM Solutions at oemsolutions@cat.com.

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

Quick Evac

Air-To-Air Aftercooler (ATAAC)

Engine idle shutdown

Turbocharger (2)

Automatic cold mode idle control

Fuel filter / water separator

Air cleaner with precleaner (1)

Electric priming pump

Automatic Retarder Control (ARC)

Braking system: Manual retarder (utilizes rear oil-cooled, multiple disc brakes), Brake release motor (towing), Front brake disconnect switch (front), Oil-cooled, multiple disc (front / rear), Brake wear indicator, Parking, Secondary, Service

Transmission: 7 speed automatic powershift with electronic clutch pressure control Advanced productivity electronic control strategy (APECS), Automatic neutral idle, Autostall, Second gear start

APECS software: ECPC, part throttle shifting

Electronic clutch pressure control

Body upshift inhibitor

Directional shift management

Reverse neutralizer during dumping

Neutral start switch

Downshift inhibitor

Neutral cost inhibitor

Reverse shift inhibitor

Programmable top gear selection

ELECTRICAL

Alarm backup

Alternator, 115 amp

Batteries, maintenance-free, 12V, 190 amp-hour

Electrical system, 25 amp, 24V to 12V converter

Lighting system: backup light (halogen), directional signals/hazard warning (front and rear LED), engine compartment light, headlights (halogen) with dimmer, operator access courtesy lights, side profile lights, stop/tail lights (LED)

OPERATOR ENVIRONMENT

Air conditioning/heat

Ashtray and cigarette lighter

Automatic tempature control

Coat hook

Cup holders (4)

Diagnostic connection port, 24V

Entertainment radio ready: 5 amp converter, Speakers, Antenna, Wiring harness

Gauges and indicators panel: Air cleaner service indicator - electronic, Brake oil temperature gauge, Coolant temperature gauge, Hour meter, Tachometer, Engine overspeed indicator, Fuel level, Speedometer with odometer, Transmission gear indicator

Hoist lever

Horn, electric

Light - dome

Light - courtesy

7-inch touchscreen display

Mirrors (heated)

Power port, 24V and 12V

ROPS certification ISO tractor

Cat Next Generation Deluxe Seat: full air suspension, heated, retractable 4 point seat belt with shoulder harness

Seat (training) with lap belt

Steering wheel, padded, tilt and telescopic

Storage compartment

Sun visor, tinted / laminated glass

Throttle lock

Window, sliding, right side (Emergency exit)

Window, powered, left side

Windshield wiper (intermittent) and washer

OTHER EQUIPMENT

Guards: Driveline, Engine crankcase, Fan and air conditioner

Body down indicator

Center mounted rims

Ground level battery disconnect

Ground level engine shutdown

Ground level grease fittings

Operator Maintenance Manual (OMM)

Rims 19.5 x 49

Supplemental steering (automatic)

Tie down eyes

Tow hooks, front/tow pin, rear

Vandalism protection locks

CAT TECHNOLOGY PRODUCTS

Product Link Ready

Adaptive Economy Mode

Payload System (TPMS)

Vital Info Management System (VIMS)

Object Detection

FLUIDS & FILTERS

Extended life coolant, -35° C (-30° F)

Grouped ground-level filters

777 Bare Chassis Optional Equipment

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NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

OTHER EQUIPMENT

Auto Lube

Rear vision camera (WAVS)

Wheel chocks

Payload indicator (lights only)

Payload indicator (display)

Fire suppression arrangement

CAT TECHNOLOGY PRODUCTS

Product Link

Traction Control System

CAT WATER DELIVERY SYSTEM (WDS)

Variable Hydraulic Pump Drive: 1,200 gpm at speeds of 3 to 25 mph with auto shut-off and soft startup

Water System Monitor: integrated into cab, programmable spray configurations, automatic diagnostic messages

Controls: Factory installed and integrated into cab

Stainless Steel Spray Heads: maintenance free, patented design resists corrosion

Water Cannon: hydraulically controlled, integrated joystick with cab controls, optional nozzles

Independent Hydraulic Cooling System: minimizes overheating

Parts & service available through global Cat dealer network

See how 777 Bare Chassis compares against frequently compared products.

Off-Highway Trucks 777 Bare Chassis

777 Bare Chassis

LRC Bare Chassis Weight without Hoist: 111505 lb; 50578 kg
Tractor ROPS: 133082 lb; 60365 kg
Nominal Water Tank Capacity: 20000 gal (US); 75700 l

Selected Model

Off-Highway Trucks 775G Bare Chassis

775G Bare Chassis

LRC Bare Chassis Weight without Hoist: 75118 lb; 34073 kg
Tractor ROPS: 85288 lb; 38686 kg
Nominal Water Tank Capacity: 15000 gal (US); 56775 l

Model Details

Off-Highway Trucks 785 Bare Chassis

785 Bare Chassis

LRC Bare Chassis Weight without Hoist: 184582 lb; 83725 kg
Tractor ROPS: 231485 lb; 105000 kg
Nominal Water Tank Capacity: 30000 gal (US); 113500 l

Model Details

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