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Power Train - Engine

The twelve-cylinder, turbocharged engine is built for power, reliability, economy and with the HEUI™ fuel system, meets worldwide emissions.

Power Train - Transmission

The Cat seven-speed, power shift transmission gets the job done smoothly and quickly.

Engine/Power Train Integration

Combining the electronic Engine Control Module (ECM) with the Caterpillar Transmission Chassis Controller (TCC) allows critical power train components to work more intelligently.

Oil-Cooled, Rear Disc Brakes

Rear braking lets the operator concentrate on the haul road.

Integrated Braking Control (IBC)

Electronically combines Automatic Retarding Control (ARC) and the Traction Control System (TCS) into one integrated control system.


The backbone of the Cat off-highway truck.

Truck Body Options

Caterpillar builds a variety of rugged, durable bodies to perform in the toughest applications.

Operator Station

Control ease and comfort maximize productivity.

Serviceability/Total Customer Support

Purchase of a Caterpillar machine includes a total commitment to customer support.


The 773E is designed for versatility.

773E Standard Equipment

Air horn, electric

Air line dryer

Alternator, 50-amp

Auxiliary jump start receptacle

Backup alarm

Battery disconnect switch, ground level

Body mounting group

  • Caliper disc (front)
  • Oil disc (rear)
  • Parking
  • Secondary

Brake (front) disconnect switch

Brake heat exchanger

Brake release motor, for towing

  • Caterpillar Contour Series air suspension seat
  • Coathook
  • Cupholder
  • Insulated and sound-suppressed
  • Radio ready
  • Storage compartment
  • Sun visor
  • Tinted glass

Crankcase guard

Diagnostic connection port, 24-volt

Drive line guard

Electrical system, 24-volt

Electronic Monitoring System

Filters, spin-on

  • Actual Gear Indicator
  • Air pressure
  • Brake oil temperature
  • Coolant temperature
  • Fuel
  • Hour meter, electric
  • Odometer
  • Speedometer
  • Tachometer

Heater/defroster 11 707 kCal (43,930 Btu)

Hoist lever, fingertip-actuated

Lighting system
  • Backup light
  • Dome/courtesy light
  • Hazard and directional signals, LED
  • Headlights, halogen, with dimmer
  • Stop/tail lights, LED

Mirrors, right and left

Power port, 24-volt


QuickEvac™ System with Prelube

Reservoirs (separate)
  • Brake/hoist
  • Steering
  • Transmission/torque converter


Rock ejectors

Seatbelts, retractable

Seat, passenger

Service platform, bolt-on

Starting, electric

Steering, automatic supplemental, electric

Steering wheel, padded, tilt, telescopic

Tires, 24.00-35, radial

Tow hooks, front

Tow pin, rear

Transmission, electronically-controlled automatic power shift
  • with downshift/reverse shift inhibitor, neutralizer during dumping, neutral start switch, engine overspeed protection, directional shift management, programmable top gear, body-up shift limiter, economy shift mode and control throttle shifting

Vandalism protection locks

Window, electric power (operator)

Windshield wipers and washer, electric intermittent