2021 GMC Yukon Ignition Relays, Sensors & Switches
- Walker Products®Ignition Knock SensorGMC Yukon / Yukon XL 5.3L 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...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$16.88