Compare 21 brands — check fitment and order online
OE part number 40991 is a Crankcase ventilation oil separator compatible with ALFA ROMEO, BMW and other makes. Available from 21 brands, priced from £45.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Crankcase ventilation oil separator OE 40991 prices range from £45.99 to £70.99, with 21 brands offering compatible parts.
OE 40991 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| BMW | 5 (E60), 5 Touring (E61), 3 Touring (E91), 3 (E90) +1 |
| VW | VENTO (1H2), GOLF III (1H1) |
| HYUNDAI | LANTRA II (J-2), LANTRA II Estate (J-2), COUPE I (RD) |
Choose a brand to see their compatible parts for OE 40991.
Products matched to OE number 40991.
| Attribute | Value |
|---|---|
| Fitting Position | Right |
| Length 1 [mm] | 1270 |
| Length 1 [mm] | 1385 |
| Length 2 [mm] | 1220 |
| Length 2 [mm] | 1240 |
| Length 2 [mm] | 1335 |
| Length 2 [mm] | 1435 |
| Length 1 [mm] | 1405 |
| Length 2 [mm] | 1245 |
| Length 2 [mm] | 965 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 40991 is a manufacturer's reference code for Crankcase ventilation oil separator used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 21 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 40991.
