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OE Quality
60-Day Returns
HolsteinPart #: 2KNC0291
Holstein 2KNC0291 Ignition Knock (Detonation) Sensor
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$53.22Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Holstein Parts
Fitment: Mazda, 6
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Ignition Knock (Detonation) Sensor options
Holstein 2KNC0291 Ignition Knock (Detonation) Sensor
| Brand | Holstein |
|---|---|
| Part Number | 2KNC0291 |
| Position | Holstein Parts |
| Terminal Type | Blade pin |
| Connector Quantity | 1 |
| Connector Shape | Square |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Terminal Gender | Male |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Mazda | 6 | 3.0L | V6 | N/A | Holstein Parts |
| 2007 | Mazda | 6 | 3.0L | V6 | N/A | Holstein Parts |
| 2006 | Mazda | 6 | 3.0L | V6 | N/A | Holstein Parts |
| 2005 | Mazda | 6 | 3.0L | V6 | N/A | Holstein Parts |
| 2004 | Mazda | 6 | 3.0L | V6 | N/A | Holstein Parts |
| 2003 | Mazda | 6 | 3.0L | V6 | N/A | Holstein Parts |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
158-12825S2376AJ57 18 921AAJ57-18-921AJ57-18-921AAJ5718921AID0250KS219S8819SU6827
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.