| Model | Date of manufacture | Power, kWt | Power HP | Volume cc | Type of construction |
|---|---|---|---|---|---|
| IH 844 844 | 01.1974 - 12.1980 | 55 | 75 | 4037 | |
| IH 844 844A | 01.1974 - 12.1980 | 55 | 75 | 4037 | |
| IH 844 844S | 01.1975 - 12.1989 | 59 | 80 | 4389 | |
| IH 844 844SA | 01.1975 - 12.1989 | 59 | 80 | 4389 | |
| IH 844 844XL | 01.1981 - 12.1990 | 59 | 80 | 4389 | |
| IH 844 844XLA | 01.1981 - 12.1990 | 59 | 80 | 4389 |