OE part number AS821M is a Crankcase ventilation valve used by BMW. We have 6 compatible replacement parts from FEBI BILSTEIN, TOPRAN, METZGER AUTOTEILE, VAICO.
Crankcase ventilation valve OE AS821M prices range from £40.99 to £124.99, with 4 brands offering compatible parts.
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Related cross-references
Cross-reference numbers associated with AS821M — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
OE AS821M fits vehicles from BMW and other compatible models listed below.
What part type is AS821M?
OE AS821M is an original equipment reference for a Crankcase ventilation valve. It identifies the exact part specification used by the vehicle manufacturer.
How much does Crankcase ventilation valve AS821M cost?
Replacement parts for OE AS821M cost between £40.99 and £124.99, depending on brand and specification.
Which brands make Crankcase ventilation valve AS821M?
FEBI BILSTEIN, TOPRAN, METZGER AUTOTEILE, VAICO all offer compatible replacements for OE AS821M.
Is AS821M original equipment or aftermarket?
OE AS821M 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 AS821M?
OE (Original Equipment) number AS821M is a manufacturer's reference code for Crankcase ventilation valve used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 4 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 AS821M.