| High engine subfamily | Cylindre/Piston |
| Cooling | Air |
| Cylinder material | Fonte |
| Piston material | Aluminium moulé |
| Piston diameter | 38.97 |
| Piston pin diameter in mm | 13 |
| Piston cap | Double slope |
| Number of piston rings | 5 |
| Gaskets supplied | Oui |
| Spare part: piston | 526077 |
- Segments supérieur et inférieur différents.