The Minneapolis-Moline M-504 is a farm tractor produced from 1962 to 1963 by Minneapolis-Moline. It features a 5.5L 4-cylinder engine available in LP gas or diesel variants, with an estimated engine power of 67.8 hp and a claimed PTO power of 61 hp. The tractor is equipped with a 10-speed two-speed power shift Ampli-Torc transmission and four-wheel drive. It has a rear Type II hitch and an independent 540 RPM rear PTO. The M-504 weighs 6200 lbs (2812 kg).