The John Deere Model M

While not the most famous "M", the John Deere Model M deserves a look

| March/April 1994

When looking back on the farm tractor world, the first "M" to come to mind must in fairness be the classic Farmall M. But there was another "M."

Introduced in 1947, the John Deere Model M was the first John Deere with a vertical valve-in-head engine. (The "L" series and Dain were valve-in-block.) Considered a one-row tractor, the "M" used only regular gasoline. It was the first Deere with position-responsive hydraulic control of integral implements and with a "Quick-Tatch" arrangement for rear-mounted tools.

The John Deere model M was also the first Deere with an adjustable steering wheel and featured airplane-type hood and grill fasteners (a WW II development for quick servicing of airplanes.)

For the first time with Deere tractors, the side-mounted belt pulley was omitted. A rear-mounted belt pulley was an option.

The rugged two cylinder distributor-ignition engine produced 20.45 observed belt (read PTO if you wish) horsepower on the Nebraska test. Rather surprising considering the tractor's slim, trim, relatively small size. Its styling, common to John Deere tractors of that period, was sometimes referred to as "clean-cut styling."

The engine and power train of the "M" were incorporated into three variations in 1949. One was the "MT," a tricycle two-row version; another the "MI," a highway mowing tractor; and the "MC," the first Deere-designed crawler and the beginning of Deere's industrial yellow line of today.

8/27/2014 11:10:14 PM

The article stated that the "M" used only regular gasoline. I currently own several John Deere M tractors that came from the factory as "all fuel" tractors. They will burn gasoline, distillate, diesel, kerosene, and several other fuels. This was an option from John Deere that many are not aware of. When I went to rebuild the engine after about 50 years of hard work, I opted to rebuild it using the "all fuel" rebuild kit. I plan to get another good 30 or 40 years out of the rebuild.