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CCIYU Knock (Detonation) Sensor Fit for 0261231200 2002-2005 for BMW 745i 4.4L 2002-2005 for BMW 745Li 4.4L 2006-2008 for BMW 750i 4.8L 2006-2008 for BMW 750Li 4.8L
A vehicle knock sensor is a sensor screwed into the engine s block or cylinder head. It is used to detect engine knock or detonation (there is a piezoelectric element inside the sensor). The signal from the knock sensor is sent to the PCM/ECM and...
$20.12 $15.95 Free Delivery
