Caterpillar 773B Off-Highway Truck Specs

Category: Off-Highway Trucks ➔
Manufacturer: Caterpillar ➔
Model: 773B ➔

The Caterpillar 773B is an off-highway haul truck designed for heavy-duty mining, quarry, and large earthmoving applications. Built by Caterpillar, the 773B is part of the 773 series and is used to transport large volumes of material over rough terrain and unpaved haul roads. It features a rigid frame, high-capacity dump body, and diesel powertrain suited for continuous material hauling. The model is commonly associated with open-pit mining and bulk construction operations. As an off-highway truck, the Caterpillar 773B is engineered for durability, load carrying, and operation in demanding site conditions where standard on-road trucks are not suitable.

Dimensions

Caterpillar 773B Off-Highway Truck Dimensions specifications
Dump Ground Clearance	1.90 ft (0.58 m)
Dump Height	28.50 ft (8.69 m)
Ground Clearance	2.00 ft (0.61 m)
Overall Height	13.90 ft (4.24 m)
Overall Length	30.50 ft (9.30 m)
Overall Width	15.50 ft (4.72 m)
Wheelbase	13.80 ft (4.21 m)

Dump

Caterpillar 773B Off-Highway Truck Dump specifications
Dump Angle	54.5 degrees
Load Capacity - heaped	44.70 cu yd (34.17 cu m)
Load Capacity - Struck	34.10 cu yd (26.07 cu m)
Lower Time	14.2 seconds
Raise Time	11.4 seconds

Engine

Caterpillar 773B Off-Highway Truck Engine specifications
Aspiration	turbocharged and aftercooled
Displacement	1,647.70 cu in (27,001.03 cu cm)
Engine Model	3412
Gross Power	682.60 hp (509.02 kw)
Net Power	650.40 hp (485.01 kw)
Power Measured @	2000 rpm
Torque Measured @	turbocharged and aftercooled rpm

Operating Specifications

Caterpillar 773B Off-Highway Truck Operating Specifications specifications
Cooling System Fluid Capacity	39.90 gal (151.02 l)
Diff and Final Drive Fluid Capacity	41.00 gal (155.19 l)
Engine Oil Capacity	18.00 gal (68.13 l)
Fuel Capacity	185.00 gal (700.23 l)
Operating Voltage	24 volts
Steering System Fluid Capacity	21.40 gal (81.00 l)
Tire Size	21.00-35 32PR (E-3)

Service Refill Capacities

Caterpillar 773B Off-Highway Truck Service Refill Capacities specifications
Brake/Hoist Hydraulic Tank	119,000.00 gal (450,415.01 l)

Transmission

Caterpillar 773B Off-Highway Truck Transmission specifications
Max Speed	35.70 mph (57.45 kph)
Number of Gears - Forward	7
Number of Gears - Reverse	1

Weights

Caterpillar 773B Off-Highway Truck Weights specifications
Empty Weight	86,853.40 lbs (39,396.09 kg)
Front Axle - Empty	68900
Loaded Weight	204,002.60 lbs (92,534.14 kg)
Weight Distribution Front - empty	47.3%
Weight Distribution Front - loaded	33.3%
Weight Distribution Rear - empty	52.7%
Weight Distribution Rear - loaded	66.7%

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