The Type 73 is an artillery tractor of the Japan Ground Self-Defense Force.

The first production of the Type 73 was in 1974, built by Hitachi as a domestic replacement for the American M4 and M8 high-speed tractors.

It was never produced in large numbers, as self-propelled artillery became the new focus.

A 400 hp Mitsubishi diesel engine powers full tracks, and armament is a single 12.7mm anti-aircraft machine gun.

It can also be fitted with a dozer blade, or alternatively, the Type 92 mine roller.