OE part number P31E18921 is a Knock Sensor compatible with FIAT, MAZDA and other makes. Available from 5 brands, priced from £17.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Knock Sensor OE P31E18921 prices range from £17.99 to £50.99, with 5 brands offering compatible parts.
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Related cross-references
Cross-reference numbers associated with P31E18921 — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
OE P31E18921 fits vehicles from FIAT, MAZDA and other compatible models listed below.
What part type is P31E18921?
OE P31E18921 is an original equipment reference for a Knock Sensor. It identifies the exact part specification used by the vehicle manufacturer.
How much does Knock Sensor P31E18921 cost?
Replacement parts for OE P31E18921 cost between £17.99 and £50.99, depending on brand and specification.
Which brands make Knock Sensor P31E18921?
NTY, EPS, FEBI BILSTEIN, FAE, BLUE PRINT all offer compatible replacements for OE P31E18921.
Is P31E18921 original equipment or aftermarket?
OE P31E18921 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 P31E18921?
OE (Original Equipment) number P31E18921 is a manufacturer's reference code for Knock Sensor used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 5 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 P31E18921.
