2021 GMC Sierra Ignition Relays, Sensors & Switches
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Walker Products®Ignition Knock SensorGMC Sierra 2021, Ignition Knock Sensor by Walker Products®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$13.71 - $16.88 - ACDelco®GM Genuine Parts™ Ignition SwitchGMC Sierra with Keyless Engine Start Switch (BTM) 2021, GM Genuine Parts™ Ignition Switch by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$28.65
- Standard®Ignition Knock SensorGMC Sierra 2.7L 2021, Ignition Knock Sensor by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$5.69
- WVE®Ignition SwitchGMC Sierra 2021, Ignition Switch by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$55.50 - $81.94
- ACDelco®GM Original Equipment™ Ignition SwitchGMC Sierra with Keyless Engine Start Switch (BTM) 2021, GM Original Equipment™ Ignition Switch by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$38.35
