Tractorpedia.com

Allis Chalmers HD-21

The Allis Chalmers HD-21 is an industrial crawler tractor produced from 1967 to 1969. It features a powerful 13.8L 6-cylinder turbocharged diesel engine delivering 268 hp net power. The tractor uses a 2-speed power shift transmission and has a crawler drive with an open operator station. It weighs approximately 50,000 lbs (22,680 kg).
Allis Chalmers HD-21industrial crawler tractor268 hp13.8L diesel enginepower shift transmissiontractor specifications
Power-
Founded-
ModelHD-21

Technical Specifications

Detailed specifications and technical data for Allis Chalmers HD-21

Power

Engine (net):268 hp (199.8 kW)

Engine

Type:turbocharged diesel
Model:Allis Chalmers 21000 II
Cooling:liquid-cooled
Starter:electric
Cylinders:6-cylinder
Bore/Stroke:5.25x6.50 inches (133 x 165 mm)
Displacement:844 ci (13.8 L)
Starter volts:24

Dimensions

Shipping weight:50000 lbs (22680 kg)

Mechanical

Drive:crawler
Operator station:Open operator station.

Production

Type:Industrial Crawler tractor
Manufacturer:Allis Chalmers
Years produced:1967 - 1969

Transmission

Type:power shift
Gears:2 forward and reverse

Related Models

Allis Chalmers HD-21 Series B

Model:HD-21 Series B