Holstein Parts 2KNC0291 Ignition Knock (Detonation) Sensor for Mazda

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US$13.82
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US$13.82
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Free shipping Free 30-day returns

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Management number 254765138 Release Date 2026/11/07 List Price US$13.82 Model Number 254765138
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The knock sensor is able to detect mechanical stress and produces a voltage when the car knocks or pings. Under heavy acceleration, it sends signals to the ECU and the ECU retards the ignition timing to compensate for the knocking, which in effect protects the pistons and rings from damage. Knocking also occurs when using low-grade fuel and having the knock sensor allows you to use different grade fuels without causing engine damage.

  • Holstein utilizes only premium materials to ensure durability and reliable service
  • Tested to ensure voltage specifications align with OE standards
  • The electronic component continuously monitors sensor output to ensure it responds with the appropriate frequency rate
  • Each knock sensor is engineered and designed to meet OE specifications for that vehicle, ensuring ideal performance


Fits Select:
2003-2008 MAZDA 6
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Manufacturer part number 2KNC0291
Compatibility 2003-2008 MAZDA 6
Vehicle fitment type Universal
Brand Holstein Parts
Vehicle make Mazda
Vehicle model 2KNC0291
Assembled product weight 1 lb
Rec. use Automotive
Items included KNC
Color Silver
Count per pack 1
Vehicle type Car
Vehicle year 2003, 2004, 2005, 2006, 2007, 2008
Has nrtl listing certification N
Model 2KNC0291

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