| High engine subfamily | Piston |
| Piston material | Aluminium moulé |
| Piston diameter | 39.95 |
| Piston pin diameter in mm | 10 |
| Piston cap | Domed |
| Number of piston rings | 2 |
| Piston ring material | Fonte |
| Piston ring section | Rectangulaire |
| Segment lug | Recouvert |
Piston iron cylinder - 3 rings