Premium Engine Knock Detonation Sensor KS For 1999-2012 Kia Hyundai 3951038021A

•Manufacturer: AIP Electronics•100% New Construction•High Quality OEM Replacement Part•Fit and Quality Guaranteed•Ready for Install Straight out of the box Symptoms of a bad knock sensor include a sluggish engine poor acceleration and poor fuel economy. Knock sensors rarely fail outright and more often get 'soft' over time and cause false signals to be sent to the ECU which thinks the engine is knocking when it's really not. Restore engine performance with this brand new OEM replacement quality knock sensor for your vehicle.** Emissions Note: For sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part.Fitment2001-2006 Hyundai Santa Fe1999-2005 Hyundai Sonata2012 Kia Fortes2001-2005 Kia Magentis2001-2006 Kia OptimaPart Numbers3951038021AKS1485S2236SU5546144-7732-KS12DKS594149KNS0027571-66061904-306284158069339510-38021S8741