Compare 16 brands — check fitment and order online
OE part number R521 is a Engine Oil Filter compatible with AIXAM, ALFA ROMEO and other makes. Available from 16 brands, priced from £3.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Engine Oil Filter OE R521 prices range from £3.99 to £14.99, with 16 brands offering compatible parts.
OE R521 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| CITROËN | BX (XB-), ZX (N2), BX Break (XB-), AX (ZA-) |
| PEUGEOT | 205 II (20A/C), 306 Hatchback (7A, 7C, N3, N5), 406 (8B), 405 I (15B) +2 |
Choose a brand to see their compatible parts for OE R521.
Products matched to OE number R521.
| Attribute | Value |
|---|---|
| Height [mm] | 169 |
| Height [mm] | 58 |
| Inner Diameter [mm] | 45 |
| Internal Thread Size | M20 x 1,5 |
| Outer Diameter [mm] | 87 |
| Inner Diameter 1 [mm] | 31 |
| Height [mm] | 79 |
| Height [mm] | 56 |
| Inner Diameter 2 [mm] | 62,5 |
| Inner Diameter [mm] | 62,5 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number R521 is a manufacturer's reference code for Engine Oil Filter used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 16 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 R521.
