A GM Genuine Parts Original Equipment Oxygen (O2) Sensor is a GM-recommended replacement for your vehicle’s original component and is a feedback sensor on your vehicle’s exhaust system. This sensor measures the proportion of oxygen in the exhaust gases. Using this measurement, the engine management computer can adjust the air/fuel ratio near the optimum value of 14.7:1. At this ratio, engine performance, emissions and fuel economy are all optimized. This Original Equipment Oxygen Sensor has been manufactured to fit your specific GM vehicle, providing the same performance, durability and service life you expect from General Motors. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
24 Month/Unlimited Mile Limited Warranty*: Our most common Parts Warranty offers coverage on the majority of our GM Genuine Parts and ACDelco service replacement parts. Effective on parts purchased April 1, 2018 and later to the original retail purchaser. Contact seller for limited warranty part details, qualifications, and possible labor coverage.
Learn more about our warranties: https://www.acdelco.com/parts/warranties
Can I replace an Oxygen (O2) Sensor on my own?
Yes, but with today's computerized engine systems, maintaining your vehicle's exhaust and emissions system is best left to a professional technician.
Is there a problem when my “Check Engine” light turns on?
Yes, it could be due to a contaminated sensor probe, broken sensor body, internal sensor failure or external electrical failure.
Can GM OE Oxygen (O2) Sensors help maximize the gas mileage for my vehicle?
Yes, GM Genuine Parts OE Oxygen (O2) Sensors are the primary devices on your vehicle that measure the proportion of oxygen in emission and gases with the amount in outside air. Using this measurement, the vehicle computer can adjust the air/fuel ratio to the optimum value of 14.7:1. At this ratio, engine performance, emissions and fuel economy are optimized.
†Retail customers with a U.S. mailing address only. Rebate valid on minimum purchase of four spark plugs and maximum of 16 spark plugs per household. Allow 6 to 8 weeks for delivery of rebate check. See acdelco.com or gmpartsrebates.com for details and rebate form, which must be postmarked by 10/31/21. Offer ends 9/30/21.
†Mail-in rebate available only to Independent Service Centers, Body Shops, or Commercial Fleets with a U.S. mailing address. Limit 15 rebates per business. Not available with some other offers. Government and municipal fleets are excluded. Allow 6 to 8 weeks from promotion end date for delivery of Visa® Prepaid Card. Visa Prepaid Card will be issued in the business name. Visit your my GM Partner Perks dashboard or see gmpartsrebates.com for complete details, eligible parts, and rebate form, which must be postmarked by 7/15/21. Offers end 6/30/21.