Details
- Cylinder Bore [mm]
- 82,4 mm
- Repair Grade
- 0,40
- Bolt Head Diameter [mm]
- 26 mm
- Component Number
- 61640
Compare 2 brands — check fitment and order online
OE part number 93178525 is a Piston compatible with ALFA ROMEO, CADILLAC and other makes. Available from 2 brands, priced from £124.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Piston OE 93178525 prices range from £124.99 to £141.99, with 2 brands offering compatible parts.
Original installation position for OE 93178525. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 93178525 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| ALFA ROMEO | 156 Sportwagon (932), 156 (932), 166 (936), 147 (937) |
| FIAT | STILO (192), STILO Multi Wagon (192), STILO VAN (192) |
| LANCIA | THESIS (841) |
| OPEL | ASTRA H (A04), ASTRA H Estate (A04) |
Choose a brand to see their compatible parts for OE 93178525.
Products matched to OE number 93178525.
| 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 |
OE (Original Equipment) number 93178525 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 93178525.