Allis Chalmers HD20

The Allis Chalmers HD20 is a heavy-duty tractor equipped with a torque converter transmission, featuring 2 forward gears and 1 reverse gear. Under the hood, the tractor boasts a 6-cylinder, 660 cubic inch General Motors diesel engine that is liquid-cooled, operates on a 2-cycle with a vertical I-head valve configuration, and pushes machinery with a compression ratio of 18.0:1. It operates at a rated 1700 RPM and is started with a 24-volt electrical system. Keeping the engine's temperature in check, it holds 60 quarts of coolant. Operators of the HD20 will appreciate the tractor's robust build at a weight of 41,000 pounds, with a total length of 191 inches and a height of 95 inches.