Details
- Length [mm]
- 72,85 mm
- Cylinder Bore [mm]
- 79 mm
- Bolt Head Diameter [mm]
- 29,5 mm
- Component Number
- 65920
Compare 2 brands — check fitment and order online
OE part number 55574732 is a Piston compatible with OPEL, VAUXHALL and other makes. Available from 2 brands, priced from £123.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Piston OE 55574732 prices range from £123.99 to £135.99, with 2 brands offering compatible parts.
Original installation position for OE 55574732. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 55574732 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| OPEL | ASTRA J GTC, ASTRA J (P10), ASTRA J Saloon, ASTRA J Sports Tourer (P10) +3 |
| VAUXHALL | MERIVA Mk II (B) (S10), ASTRA Mk VI (J) Estate (P10), ASTRA Mk VI (J) GTC (P10) |
Choose a brand to see their compatible parts for OE 55574732.
Products matched to OE number 55574732.
| Attribute | Value |
|---|---|
| Component Number | 1. R 2.0 Cr |
| Compression Height [mm] | 24,7 |
| Compression Height [mm] | 41,55 |
| Compression Height [mm] | 45,3 |
| Cylinder Bore [mm] | 91,5 |
| Pin length [mm] | 59 |
| Bolt Head Diameter [mm] | 19 |
| Bolt Length [mm] | 45 |
| Compression Height [mm] | 29,2 |
| Cylinder Bore [mm] | 125 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 55574732 is a manufacturer's reference code for Piston used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 2 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE 55574732.