Parts for Massey Harris 101 JR. Tractor
Ignition & Electrical Parts
Alternators & Related Parts
Ignition & Related Parts
Lights & Related Parts
More about the Massey Harris 101 JR.
In 1939, the very first Massey Harris 101 JR. Tractors went out. They were produced until 1946. Sometimes, the parts compatibility is determined by the serial number of your Massey Harris 101 JR. Tractor, and that info should be listed on the part fit notes. If you don't have the serial number of your tractor, you can find it on frame, rear-left side near transmission case. The serial number starts from 375001 for a 1939 model, from 376158 for a 1940 model, from 395570 for a 1941 model, from 397637 for a 1942 model, from 398596 for a 1943 model, from 500003 for a 1944 model, from 502434 for a 1945 model, from 503779 for a 1946 model. The 3-point hitch is very reliable. It is also worth noting that the PTO.