| Model | Horsepower | Year(s) |
|---|---|---|
| 25EL77 | 25 | 1977 |
| 25EL78 | 25 | 1978 |
| 25EL79 | 25 | 1979 |
| 25R69 | 25 | 1969 |
| 25R70 | 25 | 1970 |
| 25R71 | 25 | 1971 |
| 25R72 | 25 | 1972 |
| 25R73 | 25 | 1973 |
| 25R74 | 25 | 1974 |
| 25R75 | 25 | 1975 |
| 25R76 | 25 | 1976 |
| 25R77 | 25 | 1977 |
| 25R78 | 25 | 1978 |
| 25R79 | 25 | 1979 |
| 25RL69 | 25 | 1969 |
| 25RL70 | 25 | 1970 |
| 25RL71 | 25 | 1971 |
| 25RL72 | 25 | 1972 |
| 25RL73 | 25 | 1973 |
| 25RL74 | 25 | 1974 |