1936-1939

The Pacemaker was the result of Massey-Harris redesigning the Wallis 12-20 the engine speed was increased to 1200 rpm’s bringing the Pacemaker’s PA ratings to 16/27.Was offered with either steel wheels or rubber tires as an option, the transmission now offered four speeds and the Pacemaker used a verticle overhead valve four cylinder engine.

Engine: Mh I-Head

Cylinders: 4

Bore & Stroke: 3.875 x 5.25

RPM: 1,200

CID: 248

Fuel: Distillate/Gasoline

Main Fuel Tank Cap: 18

Aux Fuel Tank Cap: 1.6

Carburetor: Kingston

Cooling Capacity: 5

Drawbar HP: 16.02

Belt PTO HP: 26.49

Weight: 3,695 lbs

Length: 122 inches

Width:

Number of Gears: 4/1

Options:

Total Produced: 26,557

1936: 107001

1937: And Up

Location: Metal tag on the left rear tractor frame front of transmission case and stamped top left