The Cat 773 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 773 (05) Bare Chassis

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Key Specs

LRC Bare Chassis Weight without Hoist
70118 lb
31805 kg
Tractor ROPS
83114 lb
37700 kg
Nominal Water Tank Capacity
13000 gal (US)
49210 l

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 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 needed for specialty machines including water trucks, tow trucks, and fuel / lube trucks.

Features At A Glance

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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.
Specifications Standard Equipment Optional Equipment

Product Specifications for 773 (05) Bare Chassis

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LRC Bare Chassis Weight without Hoist 70118 lb 31805 kg
LRC Bare Chassis Weight with Hoist 71463 lb 32415 kg
LRC Gross Vehicle Weight (Target) without Hoist 148801 lb 67495 kg
LRC Gross Vehicle Weight (Target) with Hoist 147456 lb 66885 kg
Note LRC model is offered for lesser regulated countries. LRC model is offered for lesser regulated countries.
Tractor ROPS 83114 lb 37700 kg
Nominal Water Tank Capacity 13000 gal (US) 49210 l
Engine Model Cat® 3412E Cat® 3412E
Rated Engine Speed 2000 r/min 2000 r/min
Gross Power - SAE J1995 760 hp 567 kW
Rated Net Power - SAE J1349 720 hp 537 kW
Bore 5.4 in 137 mm
Stroke 6 in 152 mm
Displacement 1648 in³ 27 l
Note Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. Meets China Nonroad Stage III emission standards equivalent to Tier 2. Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. Meets China Nonroad Stage III emission standards equivalent to Tier 2.
Steering Standards ISO 5010:2007 ISO 5010:2007
Steer Angle 31 ° 31 °
Turning Diameter 77.1 ft 23.5 m
Turning Circle - Clearance Diameter 82 ft 25 m
Forward - 1 6.7 mile/h 10.8 km/h
Forward - 2 9.4 mile/h 15.1 km/h
Forward - 3 12.7 mile/h 20.4 km/h
Forward - 4 17 mile/h 27.4 km/h
Forward - 5 23 mile/h 37 km/h
Forward - 6 31.1 mile/h 50 km/h
Forward - 7 42.1 mile/h 67.8 km/h
Reverse 8.1 mile/h 13.1 km/h
Note Maximum travel speeds with standard 24.00R35 (E4) tires Maximum travel speeds with standard 24.00R35 (E4) tires
Fuel Tank Capacity 700 l 185 gal (US)
Cooling System 32 gal (US) 122 l
Differential - Final Drives 41 gal (US) 155 l
Crankcase 68 l 18 gal (US)
Steering System - Including Tank 14 gal (US) 54 l
Brake/Hoist Hydraulic Tank 46.5 gal (US) 176 l
Brake Hoist System 307 l 81 gal (US)
Torque Converter - Transmission System 14 gal (US) 53 l
ROPS Standards Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer. Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer.
FOPS Standards Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria for operator and ISO 13459:2012 Level II criteria for trainer. Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria for operator and ISO 13459:2012 Level II criteria for trainer.
Note Welding on ROPS or making modifications to the ROPS may void the ROPS certification. Please contact Caterpillar OEM Solutions if the application requires welding on the machine frame. Welding on ROPS or making modifications to the ROPS may void the ROPS certification. Please contact Caterpillar OEM Solutions if the application requires welding on the machine frame.
Brake Surface - Front 216 in² 1395 cm²
Brake Surface - Rear 9496 in² 61269 cm²

773 (05) Bare Chassis Standard Equipment

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For more information on 773 Bare Chassis options, please contact Caterpillar OEM Solutions at oem_solutions@cat.com.

NOTE

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

POWERTRAIN

  • Cat 3412E HEUI engine: 12-cylinder diesel,air-to-air aftercooler (ATAAC), hydraulicelectronic unit injection, air filter withprecleaner (2), automatic cold mode idle control,turbocharger (2)
  • Braking system: oil-cooled multiple disc (rear),parking/secondary, caliper disc (front), manualretarder (utilizes rear oil-cooled, multiple discbrakes), brake release motor (towing)
  • Extended life coolant to -35° C (-30° F)
  • Transmission: 7-speed automatic power shift with ICM control, body upshift inhibitor, controlled throttle shifting, directional shift management, downshift inhibitor, neutral coast inhibitor, neutral start switch, programmable top gear/speed selection, reverse neutralizer during dumping, reverse shift inhibitor

ELECTRICAL

  • Alarm backup
  • Alternator, 115 amp
  • Auxiliary jump start receptacle
  • Batteries, maintenance-free, 12V (2), 190 amp-hour
  • Electrical system, 24V
  • Lighting system: backup light (halogen),directional signals/hazard warning (front andrear LED), headlights (LED) with dimmer,hazard lights (LED), stop/tail lights (LED)

OPERATOR ENVIRONMENT

  • Air filter service indicator
  • Air system pressure gauge
  • Ashtray and cigarette lighter
  • Audiovisual seat belt reminder
  • Brake oil temperature gauge
  • Camera System
  • Coat hook, cup holder
  • Coolant temperature gauge
  • Diagnostic connection port
  • Engine overspeed indicator
  • Entertainment radio ready: speakers, antenna, wiring harness
  • Hoist lever
  • Hour meter
  • HVAC
  • Left side power window
  • Load counter, automatic: Advisor display
  • Mirrors, left and right
  • Right side access door
  • ROPS cab, insulated/sound suppressed
  • Seat, Cat Comfort, full air suspension and retractable four-point seat belt with shoulder harness
  • Seat, trainer with lap belt
  • Tachometer
  • Throttle lock
  • Tinted, laminated glass
  • Transmission gear indicator
  • Transmission oil temperature gauge

OTHER EQUIPMENT

  • Airline dryer
  • Body down indicator
  • Center mounted rims
  • Ground level battery disconnect
  • Driveline guards, operator safety vandalism protection lock
  • Engine crankcase guards
  • Ground level battery disconnect
  • Ground level machine shutdown
  • Ground level grease fittings
  • Hydro pneumatic suspension at front and rear
  • Parts manual — digital (QR)
  • Reservoirs: transmission, steering, brake converter, hoist
  • Supplemental steering, automatic

CAT TECHNOLOGY PRODUCTS

  • Product Link, cellular or satellite

FLUIDS & FILTERS

  • Extended life coolant, -35° C (-30° F)
  • Grouped ground-level filters

773 (05) Bare Chassis Optional Equipment

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POWERTRAIN

  • Auto retarder control (ARC)
  • Traction Control System (TCS)
  • IBC (ARC &TCS)

OPERATOR ENVIRONMENT

  • Fog lamp
  • Heated mirrors

OTHER EQUIPMENT

  • Automatic lubrication system
  • Cluster/grouped lubrication system
  • Cold weather packages
  • Exhaust Muffler
  • Fast fluid fill system
  • Fire extinguisher
  • Fuel system, Fast fill
  • Guard, Turbocharger
  • Oil change system — high speed
  • Spare rim
  • Wheel Chocks

CAT TECHNOLOGY PRODUCTS

  • Vital Information Management System (VIMS)
  • Truck Payload Management System (TPMS)

See how 773 (05) Bare Chassis compares against frequently compared products.

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773 (05) Bare Chassis
773 (05) Bare Chassis
LRC Bare Chassis Weight without Hoist
70118 lb
31805 kg
Tractor ROPS
83114 lb
37700 kg
Nominal Water Tank Capacity
13000 gal (US)
49210 l
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772 Bare Chassis
772 Bare Chassis
LRC Bare Chassis Weight without Hoist
58414 lb
26496 kg
Tractor ROPS
77430 lb
35122 kg
Nominal Water Tank Capacity
11000 gal (US)
41500 l
View Details
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777 (07) Bare Chassis
777 (07) 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
View Details

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