Massey-Harris Farm tractors by power
Massey-Harris was formed with the merger of the Massey and Harris companies, both major manufacturers of harvesting machinery in Canada. Massey-Harris merged with Ferguson, after Harry Ferguson had split from Ford, to form Massey Ferguson. AGCO purchased Massey-Ferguson in 1994 and continues to use the name.
AGCO Massey Ferguson - official site
| Model | Power | Years |
| Pony 11 | 12 hp[B] | 1947 - 1954 |
| Pony 811 | 15 hp | 1951 |
| Pony 812 | 15 hp | 1951 - 1957 |
| 16 Pacer | 21 hp[B] | 1953 - 1955 |
| GP | 24 hp[B] | 1930 - 1936 |
| No. 2 12-22 | 24 hp[B] | 1920 - 1922 |
| No. 1 12-25 | 27 hp[B] | 1918 - 1919 |
| 81 | 28 hp[P] | 1941 - 1946 |
| 82 | 28 hp[P] | 1941 - 1948 |
| 101 Junior | 29 hp[P] | 1939 - 1946 |
| 102 Junior | 29 hp[P] | 1939 - 1946 |
| 22 | 30 hp[P] | 1948 - 1953 |
| 23 Mustang | 30 hp[P] | 1952 - 1956 |
| Pacemaker | 30 hp[B] | 1936 - 1939 |
| No. 3 15-28 | 31 hp[B] | 1922 - 1923 |
| 21 Colt | 31 hp[B] | 1952 - 1953 |
| 20 | 34 hp[B] | 1946 - 1948 |
| Challenger | 35 hp[B] | 1936 - 1939 |
| 50 | 36 hp[B] | 1955 - 1957 |
| 30 | 36 hp[P] | 1946 - 1952 |
| 33 | 40 hp[P] | 1952 - 1955 |
| 44 Special | 40 hp | 1953 - 1955 |
| 101 Senior | 40 hp[B] | 1942 - 1946 |
| 101 Super | 40 hp[P] | 1938 - 1942 |
| 202 | 41 hp[P] | 1940 - 1942 |
| 203 | 41 hp[P] | 1940 - 1947 |
| 333 | 41 hp[P] | 1956 - 1958 |
| 44 Row-Crop | 45 hp | 1947 - 1953 |
| 25 | 45 hp[B] | 1932 - 1946 |
| 744 | 46 hp | 1948 - 1958 |
| 745 | 50 hp[B] | 1954 - 1958 |
| 444 | 53 hp[P] | 1956 - 1958 |
| 55 | 62 hp[P] | 1946 - 1955 |
| 555 | 78 hp[P] | 1955 - 1958 |
| 102 Senior | unknown | 1942 - 1946 |
| 201 | unknown | 1940 - 1942 |
[B]: Engine power estimated from belt horsepower. [P]: Engine power estimated from PTO horsepower. See individual tractor data listing for power details.