OE part number 637521 is a Fuel Filter compatible with BMW, CADILLAC and other makes. Available from 8 brands, priced from £15.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Fuel Filter OE 637521 prices range from £15.99 to £27.99, with 8 brands offering compatible parts.
Aftermarket manufacturers cross-reference matching gear, timing chain deflector and parts set, maintenance service to OE 637521 — verify fitment before ordering.
Best PricesFree UK DeliverySecure Payment2.5M+ Parts
Related cross-references
Cross-reference numbers associated with 637521 — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
OE 637521 fits vehicles from BMW, CADILLAC, CHEVROLET and other compatible models listed below.
What part type is 637521?
OE 637521 is an original equipment reference for a Fuel Filter. It identifies the exact part specification used by the vehicle manufacturer.
How much does Fuel Filter 637521 cost?
Replacement parts for OE 637521 cost between £15.99 and £27.99, depending on brand and specification.
Which brands make Fuel Filter 637521?
BLUE PRINT, Dr!ve+, FEBI BILSTEIN, FILTRON, MANN-FILTER all offer compatible replacements for OE 637521.
Is 637521 original equipment or aftermarket?
OE 637521 is an original equipment reference assigned by the vehicle manufacturer. The parts listed below are quality-matched aftermarket and OEM-equivalent replacements that meet the same specification.
What is OE number 637521?
OE (Original Equipment) number 637521 is a manufacturer's reference code for Fuel Filter used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 8 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 637521.
