2012 Chevy Silverado 3500 Ignition Relays, Sensors & Switches
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Dorman® - OE Solutions™ Ignition Knock Sensor Kit$43.78 + Save an extra $1.90 with iD FastTrack -
iD Select® - Ignition Knock Sensor$20.31 + Save an extra $1.20 with iD FastTrack