773 (05) Off-Highway Truck

Increase uptime, efficiency, and safety on the jobsite with the productive and reliable Cat® 773 Off-Highway Truck. Built with the powerful Cat 3412E air-to-air aftercooled engine, featuring Hydraulic Electronic Unit Injector (HEUI™) for fuel efficient operation. Delivering unmatched reliability and durability along with high uptime, the 773 is the right choice for your operation.

ACHIEVE GREATER PRODUCTIVITY

BOOST FUEL EFFICIENCY

DESIGNED FOR SAFETY

EASY TO OPERATE

INTEGRATED CAT TECHNOLOGIES

INCREASED PERFORMANCE AND RELIABILITY

LOWER MAINTENANCE COSTS

Standard Equipment

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), hydraulic electronic unit injection, air filter with precleaner (2), automatic cold mode idle control, turbocharger (2)
  • 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 ampere
  • Batteries, maintenance-free, 12V (2), 190 amp-hour
  • Electrical system, 24V
Brakes
  • Caliper disc (front)
  • Oil disc (rear)
  • Parking
  • Secondary
Cab, ROPS
  • Air filter service indicator
  • Air system pressure gauge
  • Insulated and sound-suppressed
  • Ashtray and cigarette lighter
  • Audiovisual seat belt reminder
  • Camera System
  • Sun visor
  • Coat hook, cup holder
  • Coolant temperature gauge
  • Diagnostic connection port
  • Engine overspeed indicator
  • Entertainment radio ready: speakers, antenna, wiring harness
  • Hoist lever
  • 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
  • Throttle lock
  • Tinted, laminated glass
  • Transmission oil temperature gauge
Gauges
  • Transmission gear indicator
  • Air pressure
  • Brake oil temperature
  • Coolant temperature
  • Fuel
  • Hour meter, electric
  • Odometer
  • Speedometer
  • Tachometer
Lighting system
  • Backup light (halogen)
  • Dome/courtesy light
  • Directional signals/hazard warning (front and rear LED)
  • Headlights (LED) with dimmer
  • Hazard lights (LED)
  • Stop/tail lights, LED
Reservoirs (separate)
  • Brake/hoist
  • Steering
  • Transmission/torque converter
Technology Products
  • Product Link™
Other
  • Airline dryer
  • Body down indicator
  • Body mounting group
  • Body safety pin (secures body in up position)
  • Center-mounted rims
  • Driveline guards, operator safety vandalism protection lock
  • Engine crankcase guards
  • Ground level battery disconnect
  • Ground level grease fittings
  • Hydro pneumatic suspension at front and rear
  • Parts manual — digital (QR)
  • Rock ejectors
  • Supplemental steering, automatic

Additional information

Offering Type

Engine Model

Cat® 3412E

Rated Engine Speed

2000 r/min ( 2000 r/min )

Engine - Gross Power - SAE J1995

567 kW ( 760 HP )

Engine - Net Power - SAE J1349

537 kW ( 720 HP )

Engine - Number of Cylinders

12

Engine - Torque Rise

33 % ( 33 % )

Engine - Bore

137 mm ( 5.4 in )

Engine - Stroke

152 mm ( 6 in )

Engine - Displacement

27 l ( 1649 in³ )

Engine - Note (1)
Engine - Note (2)
Engine - Note (3)
Engine - Note (5)

Meets China Nonroad Stage III emission standards equivalent to Tier 2.

Weights - Approximate - Target Gross Machine Operating Weight

99300 kg ( 218920 lb )

Weights - Approximate - Note (1)

Does not include Liner.

Weights - Approximate - Note (2)
Operating Specifications - Nominal Payload Class (100%)

59.1 t ( 65.2 ton (US) )

Operating Specifications - Top Speed - Loaded

67.8 km/h ( 42.1 mile/h )

Transmission - Forward - 1

10.8 km/h ( 6.7 mile/h )

Transmission - Forward - 2

15.1 km/h ( 9.3 mile/h )

Transmission - Forward - 3

20.4 km/h ( 12.7 mile/h )

Transmission - Forward - 4

27.4 km/h ( 17 mile/h )

Transmission - Forward - 5

37 km/h ( 23 mile/h )

Transmission - Forward - 6

50 km/h ( 31 mile/h )

Transmission - Forward - 7

67.8 km/h ( 42.1 mile/h )

Transmission - Reverse

13.1 km/h ( 8.1 mile/h )

Final Drives - Differential Ratio

3.64:1

Final Drives - Planetary Ratio

4.8:1

Final Drives - Total Reduction Ratio

17.48:1

Brakes - Brake Surface - Front

1395 cm² ( 216 in² )

Brakes - Brake Surface - Rear

61269 cm² ( 9496 in² )

Brakes - Brake Standards

ISO 3450: 2011

Body Hoists - Pump Flow - High Idle

562 l/min ( 148 gal/min )

Body Hoists - Relief Valve Setting - Raise

17225 kPa ( 2500 psi )

Body Hoists - Relief Valve Setting - Lower

3445 kPa ( 500 psi )

Body Hoists - Body Raise Time - High Idle

9.5 s ( 9.5 s )

Body Hoists - Body Lower Time - Float

12.5 s ( 12.5 s )

Body Hoists - Note (1)

Twin, two-stage hydraulic cylinders mounted outside the main frame; double acting cylinders in second stage.

Body Hoists - Note (2)

Power raise in both stages and power down in second stage.

Capacity - Dual Slope - 100% Fill Factor - Struck

26.6 m³ ( 34.8 yd³ )

Capacity - Dual Slope - 100% Fill Factor - Heaped 2:1 (SAE)

35.2 m³ ( 46 yd³ )

Capacity - Dual Slope - 100% Fill Factor - Note (1)

ISO 6483:1980

Capacity - Dual Slope - 100% Fill Factor - Note (2)

Contact your local Cat dealer for body recommendation.

Cab - ROPS Standards (1)

Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer.

Cab - FOPS Standards
Cab - Note (1)
Weight Distributions - Approximate - Front Axle - Empty

46.6 % ( 46.6 % )

Weight Distributions - Approximate - Front Axle - Loaded

33.8 % ( 33.8 % )

Weight Distributions - Approximate - Rear Axle - Empty

53.4 % ( 53.4 % )

Weight Distributions - Approximate - Rear Axle - Loaded

66.2 % ( 66.2 % )

Suspension - Effective Cylinder Stroke - Front

234 mm ( 5.2 in )

Suspension - Effective Cylinder Stroke - Rear

149 mm ( 5.9 in )

Suspension - Rear axle - Oscillation

8.1 ° ( 8.1 ° )

Approximate Weights - Dual Slope - Chassis

30219 kg ( 66622 lb )

Approximate Weights - Dual Slope - Gross Vehicle

99300 kg ( 218920 lb )

Service Refill Capacities - Fuel Tank

700 l ( 185 gal (US) )

Service Refill Capacities - Cooling System

122 l ( 32 gal (US) )

Service Refill Capacities - Differential - Final Drives

155 l ( 41 gal (US) )

Service Refill Capacities - Steering Tank

34 l ( 9 gal (US) )

Service Refill Capacities - Steering System - Including Tank

60 l ( 16 gal (US) )

Service Refill Capacities - Brake Hoist System - Includes Tank

307 l ( 81 gal (US) )

Service Refill Capacities - Torque Converter - Transmission System - Including Sump

72 l ( 19 gal (US) )

Service Refill Capacities - Torque Converter - Transmission System

53 l ( 14 gal (US) )

Service Refill Capacities - Crankcase

68 l ( 18 gal (US) )

Tires - Standard Tire

24.00-R35 (E4)

Tires - Note (1)

Productive capabilities of the 773 truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.

Tires - Note (2)

Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.

Sound Standards

ISO 6393:2008, SAE J1166:2008

Sound - Note (1)
Sound - Note (2)

Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.

Steering - Turning Diameter - Front

22 m ( 72.18 ft )

Steering Standards

Steering Standards Meets ISO 5010:2007

Steering - Steer Angle

31 ° ( 31 ° )

Steering - Turning Circle - Clearance Diameter

25 m ( 82 ft )

Dimensions - Height - Top of ROPS

4000 mm ( 13.12 ft )

Dimensions - Overall Body Length

8535 mm ( 28 ft )

Dimensions - Inside Body Length

6400 mm ( 21 ft )

Dimensions - Overall Length

9120 mm ( 31.5 ft )

Dimensions - Wheel Base

4191 mm ( 13.75 ft )

Dimensions - Rear Axle - Tail

2782 mm ( 9.13 ft )

Dimensions - Ground Clearance

566 mm ( 1.86 ft )

Dimensions - Dump Clearance

676 mm ( 2.22 ft )

Dimensions - Loading Height - Empty

3773 mm ( 12.38 ft )

Dimensions - Inside Body Depth - Maximum

1805 mm ( 5.92 ft )

Dimensions - Overall Height - Body Raised

8787 mm ( 28.83 ft )

Dimensions - Operating Width

5076 mm ( 16.8 ft )

Dimensions - Centerline Front Tire Width

3275 mm ( 10.74 ft )

Dimensions - Engine Guard Clearance

667 mm ( 2.2 ft )

Dimensions - Overall Canopy Width

4393 mm ( 14.41 ft )

Dimensions - Outside Body Width

3910 mm ( 12.8 ft )

Dimensions - Inside Body Width

3658 mm ( 12 ft )

Dimensions - Front Canopy Height

4393 mm ( 14.41 ft )

Dimensions - Rear Axle - Clearance

591 mm ( 1.94 ft )

Dimensions - Centerline of Rear Dual Tire Width

2927 mm ( 9.6 ft )

Dimensions - Overall Tire Width

4457 mm ( 14.62 ft )

Engine - Note (4)

No engine derating required up to 3048 m (10,000 ft).

Transmission - Note

Maximum travel speeds with standard 24.00R35 (E4) tires.

Service Refill Capacities - Torque Converter - Brake - Hoist Hydraulic Tank

133 l ( 35 gal (US) )

Weights - Approximate - Operating Weight - Empty

40192 kg ( 88608 lb )

Weights - Approximate - Operating Weight - Loaded

59108 kg ( 130311 lb )

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