| Engine name | manufacturer | configuration | cylinders |
|---|---|---|---|
| 323P | BMW | Radial | 9 |
| 323R | BMW | Radial | 9 |
| 3A-2500 | Packard | V | 12 |
| 4A-2500 | Packard | V | 12 |
| 5A-2500 | Packard | V | 12 |
| 9Nd | Salmson | Radial | 9 |
| A.74 R.C.18 | Fiat | Radial | 14 |
| A.74 R.C.38 | Fiat | Radial | 14 |
| A.74 R.C.38D | Fiat | Radial | 14 |
| A.74 R.C.42 | Fiat | Radial | 14 |
| A.74 R.I.C.38 | Fiat | Radial | 14 |
| A.80 R.C.20 | Fiat | Radial | 14 |
| A.80 R.C.40 | Fiat | Radial | 14 |
| A.80 R.C.41 | Fiat | Radial | 14 |
| Alfa 125 R.C. 10 | Alfa Romeo | Radial | 9 |