£1,274.15
M2 / M3 & M4 3.0 24v Single & Twin Turbo Forged Piston Kit.
Manufacturer kit reference: K9506-6
| Engine Code | N55 , S55 |
|---|---|
| YOM From | 2010 |
| YOM To | current |
| Bore Size | 84.5mm – K9506D050-6 , 84mm – K9506DA-6 |
| Stroke | 86.9mm |
| Compression Height | 32.5mm |
| OEM Comp Ratio | 10.0:1 – S55 , 11.0:1 – N55 |
| Number of Rings | 3 |
| OEM Rod Length | 144.35mm |
| Clip Part Number | CW22 |
| Pin Size | 22mm |
| Pin Part Number | WP136-SP |
| Cylinders | 6 |
| Valves Per Cylinder | 4 |
| Piston reference | Piston diameter | Compression ratio | Capacity |
|---|---|---|---|
| K9506D050-6 | 84.43mm | 3014cc | |
| K9506DA-6 | 83.93mm | 2979cc |
Piston diameter and cylinder bore are different measurements. Select the correct size and confirm the engine specification before ordering.