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CCIYU Ignition Knock (Detonation) Sensor Fit for KS253 1998-1999 for BMW 323is 2.5L 1996-1999 for BMW 328i 2.8L 1996-1999 for BMW 328is 2.8L 1997-1998 for BMW 528i 2.8L 1996-1999 for BMW M3 3.2L
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...
$15.95 $11.45 Free Delivery
