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. Please keep your invoice for proof of this warranty.

  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
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
1
0
0
0
0
O2 Sensor
Fit my 2002 GMC Sonoma 4.3L perfectly and went in without an issue! Great product!
July 30, 2017
Purchased
6 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!

How-to Video:

(03:02 min)

Tools List:

    Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Wrenches - SAE

  • 7/8 Inch Wrench




Vehicle Fit

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

Ships Same Day for orders placed by 4 P.M. ET

We're here to help

1A Auto Parts

Customer Feedback

"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
Read More