MPN P31E18921 — auto parts
We have 2 genuine used OEM parts matching manufacturer part number (MPN) P31E18921 for Mazda (Knock Sensor) in stock. Each part is removed from a real vehicle, photographed as the exact item you receive, and fitment-checked. Free 30-day returns · fast quote by phone or message.
In stock
2017-2021 MAZDA CX-5 CX-9 Ignition Knock Detonation Sensor P31E18921 OEM ⚡
Mazda CX-5 2018
$28.07
Price excludes shipping — request a quote
Related: Mazda parts
Numbers like P31E18921 identify interchangeable parts across vehicles. Can't find the exact fit? Send us the number and we'll match it fast.