This replacement oxygen sensor is just what you need to get your vehicle in good working form again!

Specifications:

  • Brand New Oxygen Sensor
  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (15.75 Inches)
  • Upstream or Downstream Sensor
    • as listed per application
  • 4 wire configuration
  • Replaces dealer part numbers: 12558850, 12559850, 12561776, 12562943, 12567127, 12567254, 12590789, 8125671270, 81256 71270, 8972873520, 89728 73520, 97287352, 972873520
  • Built and tested to strict quality control standards
  • Includes removal and installation tool

Note: For clarification purposes:

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

If you have a bad O2 sensor causing your vehicle to fail an emission test then this is the part for you.

 

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

 

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Removing the O2 Sensor (0:37)
    • Pry out the clip and pin from the sensor
    • Disconnect the O2 sensor harness
    • Cut off the harness connector and sensor with wire cutters
    • Remove the O2 sensor wire with a 7/8 wrench
  2. step : Installing the New O2 Sensor (2:20)
    • Twist on the O2 sensor to the exhaust pipe
    • Tighten the O2 sensor with a 7/8 wrench
    • Reconnect the O2 sensor harness
    • Replace the pin and re-clip the harness to the vehicle

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Wrenches - SAE

  • 7/8 Inch Wrench

5.0 / 5.0
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O2 Sensor
Fit my 2002 GMC Sonoma 4.3L perfectly and went in without an issue! Great product!
July 30, 2017
Purchased
12 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 4 answers
Can this be used for upstream and downstream?
Cosmo C on May 21, 2018
BEST ANSWER: Looked at the product number on a 03 impala this is for upstream behind the headers and distributor cap. the downsteam (behind the catillatic convertor) connector is a different connector head so this is only for upsteam on an 03 impala but varies depending on the vehicle its being used on. best to do is look at the vehicle fit chart for your particular vehicle.

Vehicle Fit

  • 2001-2005 Buick Century V6 3.1L Upstream O2 Oxygen Sensor with Install Tool
  • 2004 Buick Rainier V8 5.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2005 Buick Rendezvous V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2004 Cadillac Deville V8 4.6L Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Cadillac Eldorado V8 4.6L Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2003 Cadillac Seville V8 4.6L Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Astro V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Astro V6 4.3L Upstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2002 Chevy Avalanche 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2002 Chevy Avalanche 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2002-2005 Chevy Blazer S10 V6 4.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2005 Chevy Blazer S10 V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2001-2005 Chevy Impala V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2003 Chevy Malibu V6 3.1L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2004 Chevy Monte Carlo LS V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2004 Chevy S10 Pickup V6 4.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2004 Chevy S10 Pickup V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2003-2004 Chevy SSR V8 5.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Silverado 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Silverado 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Silverado 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Silverado 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2002 Chevy Silverado 1500 V6 4.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002 Chevy Silverado 1500 V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2000 Chevy Silverado 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000 Chevy Silverado 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Suburban 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Suburban 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Tahoe V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Tahoe V8 5.3L (8th Vin Digit T) (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Tahoe V8 5.3L (8th Vin Digit T) (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Chevy Tahoe V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2002 Chevy Tahoe V8 5.3L (8th Vin Digit Z) Upstream O2 Oxygen Sensor with Install Tool
  • 2002 Chevy Tahoe V8 5.3L (8th Vin Digit Z) Downstream O2 Oxygen Sensor with Install Tool
  • 2003-2004 Chevy Trailblazer EXT V8 5.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2005 Chevy Venture V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2003-2004 GMC Envoy XL V8 5.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2004 GMC S-15 Sonoma V6 4.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2004 GMC S-15 Sonoma V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Safari V6 4.3L Upstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2000-2002 GMC Safari V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Sierra 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Sierra 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Sierra 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Sierra 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2002 GMC Sierra 1500 V6 4.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2002 GMC Sierra 1500 V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2000 GMC Sierra 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000 GMC Sierra 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Yukon V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Yukon V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Yukon V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Yukon V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Yukon XL 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 GMC Yukon XL 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor with Install Tool
  • 2002 Honda Passport V6 3.2L Upstream O2 Oxygen Sensor with Install Tool
  • 2002 Honda Passport V6 3.2L Downstream O2 Oxygen Sensor with Install Tool
  • 2003-2004 Isuzu Ascender V8 5.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2004 Isuzu Axiom V6 3.5L Upstream O2 Oxygen Sensor with Install Tool
  • 2004 Isuzu Axiom V6 3.5L Downstream O2 Oxygen Sensor with Install Tool
  • 2002-2004 Isuzu Rodeo V6 3.2L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2004 Isuzu Rodeo V6 3.2L Downstream O2 Oxygen Sensor with Install Tool
  • 2004 Isuzu Rodeo V6 3.5L Upstream O2 Oxygen Sensor with Install Tool
  • 2004 Isuzu Rodeo V6 3.5L Downstream O2 Oxygen Sensor with Install Tool
  • 2002-2003 Isuzu Rodeo Sport V6 3.2L Upstream O2 Oxygen Sensor with Install Tool
  • 2002-2003 Isuzu Rodeo Sport V6 3.2L Downstream O2 Oxygen Sensor with Install Tool
  • 2001-2004 Olds Alero V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2003 Olds Aurora V8 4.0L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2002 Olds Aurora V6 3.5L Upstream O2 Oxygen Sensor with Install Tool
  • 2000-2002 Olds Intrigue V6 3.5L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2004 Olds Silhouette V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2005 Pontiac Aztek V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2005 Pontiac Grand Am V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2003 Pontiac Grand Prix V6 3.1L Upstream O2 Oxygen Sensor with Install Tool
  • 2001-2005 Pontiac Montana V6 3.4L Upstream O2 Oxygen Sensor with Install Tool
Part #: 1AEEK00517

How-to Video:

(03:02 min)