Knock Sensor | Mazdaspeed3 (2007-2013)

Knock sensors help sense vibrations due to engine knock or detonation. With this information, it will alter ignition timing to optimize the performance of your Mazdaspeed3's engine and prevent detonation. 


  • Help protect your Mazdaspeed3's engine with a functional knock sensor
  • High quality OEM Mazda Knock Sensor
  • Includes: Knock Sensor
  • Part #: L807-18-921

Special Notes

  • Applicable model years:
    • Mazdaspeed3 2.3L M/T: 2007, 2008, 2009, 2010, 2011, 2012, 2013


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