GM Genuine Parts 213-3539 | Oxygen Sensor

Part Number
Oxygen Sensor

Fits: 06-07 Buick Rainier, 06-09 Chevrolet Trailblazer, 06 Chevrolet Trailblazer EXT, 06-09 GMC Envoy, 06 GMC Envoy XL, 06-08 Isuzu Ascender, 06-09 Saab 9-7x

Special Price $52.69 Regular Price $61.99
In stock
Only 8 left
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Estimated Ship Date: 1 Business Day or Less
ACDelco GM Original Equipment Oxygen (O2) Sensors are special feedback sensors on your vehicle's exhaust system, and are GM-recommended replacements for your vehicle's original components. These sensors measure the proportion of oxygen in exhaust gases. Using this measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. These original equipment oxygen sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
Heated Oxygen Sensor



  • Detects oxygen content in the exhaust gases to help optimize emissions
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Manufactured to GM OE specification for fit, form, and function
  • Offering the quality, reliability, and durability of GM OE
  • Oxygen Sensor
  • This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle


Marketing Statement - Product LineStay with the parts brand your General Motors vehicle came with and get the quality you know and trust with ACDelco GM Original Equipment Emission parts. ACDelco GM OE replacement parts give you the peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Emission parts are manufactured for many makes and models of GM car, light duty truck, and sport utility vehicle.
Mkt_State_Warranty_CA36 Months/60,000 KM (Parts Only). Please see for more details.
Mkt_State_Warranty_US24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see for more details.
PAdb Update Date2014-09-15




  • 2006-2008 Isuzu Ascender - Position: Upstream
  • 2006-2006 GMC Envoy XL - Position: Upstream
  • 2006-2009 GMC Envoy - Position: Upstream
  • 2006-2006 Chevrolet Trailblazer EXT - Position: Upstream
  • 2006-2007 Buick Rainier - Position: Upstream
  • 2006-2009 Chevrolet Trailblazer - Position: Upstream
  • 2006-2009 Saab 9-7x - Position: Upstream
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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