Categories ↠ Off-Highway Trucks ↠ Caterpillar 773B

Caterpillar 773B Off-Highway Truck

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

The Caterpillar 773B is an off-highway haul truck designed for mining, quarry, and large earthmoving applications. Built for high-capacity material transport, the 773B features a rigid frame, diesel powertrain, and heavy-duty suspension for operation on rough haul roads. It is commonly used to move overburden, aggregate, and other bulk materials in demanding site conditions. The model is part of Caterpillar's off-highway truck lineup and is recognized for serviceability, durability, and compatibility with large-scale loading equipment. The 773B remains a reference model in used equipment markets and fleet histories for heavy-duty haulage operations.

See all Caterpillar 773Bs for sale

Dimensions

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

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

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

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

Brake/Hoist Hydraulic Tank

119,000.00 gal (450,415.01 l)

Transmission

Max Speed	35.70 mph (57.45 kph)
Number of Gears - Forward	7
Number of Gears - Reverse	1

Weights

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%

Caterpillar 773Bs currently for sale

A Caterpillar 773B From Yancey Bros. Co. for $220,000.00 USD

A 1987 Caterpillar 773B From Columbia Western Machinery, Inc. for $80,009.00 USD

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