| Year | HP | Model | Cylinders | Serial Number | |
| 70-71 | 7.5 | 75 | 2 | 2810637-3274632 | Select Engine |
| 72-73 | 7.5 | 75 | 2 | 3274633-3801457 | Select Engine |
| 74-86 | 7.5 | 75 | 2 | 3801458-A197111 | Select Engine |
| Year | HP | Model | Cylinders | Serial Number | |
| 70-71 | 7.5 | 75 | 2 | 2810637-3274632 | Select Engine |
| 72-73 | 7.5 | 75 | 2 | 3274633-3801457 | Select Engine |
| 74-86 | 7.5 | 75 | 2 | 3801458-A197111 | Select Engine |