Compare 18 brands — check fitment and order online
24 matching parts
About OE part number FC521
OE part number FC521 is a Interior air filter compatible with AUDI, BUICK and other makes. Available from 18 brands, priced from £4.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Interior air filter OE FC521 prices range from £4.99 to £37.99, with 18 brands offering compatible parts.
Matching cap, coolant tank, fuel filter and air cleaner are cross-referenced to OE FC521 by aftermarket manufacturers, including filter sets that bundle multiple filters at a discount — verify fitment before ordering.
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Related cross-references
Cross-reference numbers associated with FC521 — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
OE FC521 fits vehicles from AUDI, BUICK, CHEVROLET and other compatible models listed below.
What part type is FC521?
OE FC521 is an original equipment reference for a Interior air filter. It identifies the exact part specification used by the vehicle manufacturer.
How much does Interior air filter FC521 cost?
Replacement parts for OE FC521 cost between £4.99 and £37.99, depending on brand and specification.
Which brands make Interior air filter FC521?
FEBI BILSTEIN, Dr!ve+, FILTRON, TOPRAN, JAPKO all offer compatible replacements for OE FC521.
Is FC521 original equipment or aftermarket?
OE FC521 is an original equipment reference used by CLAAS, TOYOTA, MITSUBISHI. The parts listed below are quality-matched aftermarket and OEM-equivalent replacements tested against the same specification.
What is OE number FC521?
OE (Original Equipment) number FC521 is a manufacturer's reference code for Interior air filter used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 18 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 FC521.
