Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (15.74 Inches)
  • Upstream or Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 4 terminal configuration
  • Replaces dealer part numbers: 19178116, 19178945, 19178958, 251313961, 25161128, 25163080, 25164488, 25312194, 25312201, 25312203, 25312211, 25315373
  • Built and tested to strict quality control standards

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 run poorly or 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

Note:  You may be required to reset the vehicle’s computer after installation of this part.

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
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
5
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O2!densors
Great price. Good quality. Fast shipping. Couldn't ask for anything better
January 24, 2017
Purchased
1 year ago
O2 oxygen sensor
Easy install and works great. Saved me 20.00 from buying it at local parts stores. Received part the next day due to the area where I live in. Nice people to work with and they seam to be very knowledgeable and helpfuL.

Kevin B.
February 23, 2018
Purchased
2 months ago
Quality service
I'm always pleased with the prompt professional courteous service I have with 1 AUto thank you for making my online shopping experience hassle free.

Eric Burmester
March 30, 2018
Purchased
1 month ago
An OS is an OS unless you don't have one
My 97 suburban had been stripped of the cat converter and everything else had been worked around. I had to replace almost every sensor on it. This sensor surprised me when I put it in my intermittent misfire code went away. Of course I had to have plugs put in so the sensors could be installed, but it works great now. Love the shipping from these guys.
February 12, 2017
Purchased
1 year ago
oxygen sensor
Worked great, easy install, hooked up just like it should
February 22, 2018
Purchased
2 months ago
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Vehicle Fit

  • 1997-2000 Buick Century V6 3.1L Upstream O2 Oxygen Sensor
  • 1997-2005 Buick LeSabre V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-2003 Buick Park Avenue V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-2003 Buick Regal V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-1999 Buick Riviera V6 3.8L Upstream O2 Oxygen Sensor
  • 1997 Buick Skylark V6 3.1L Upstream O2 Oxygen Sensor
  • 1996-1999 Cadillac Deville V8 4.6L Upstream O2 Oxygen Sensor
  • 1996-1999 Cadillac Eldorado V8 4.6L Upstream O2 Oxygen Sensor
  • 1999-2000 Cadillac Escalade V8 5.7L Downstream O2 Oxygen Sensor
  • 2002 Cadillac Escalade V8 5.3L Downstream O2 Oxygen Sensor
  • 2002 Cadillac Escalade V8 6.0L Downstream O2 Oxygen Sensor
  • 2002 Cadillac Escalade EXT V8 6.0L Downstream O2 Oxygen Sensor
  • 1996-1999 Cadillac Seville V8 4.6L Upstream O2 Oxygen Sensor
  • 1996-1997 Chevy Astro V6 4.3L Downstream O2 Oxygen Sensor
  • 2002 Chevy Avalanche 1500 V8 5.3L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy C1500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy C1500 Truck V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy C1500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-1998 Chevy C2500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2000 Chevy C2500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2000 Chevy C2500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2000 Chevy C3500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy C3500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 2000 Chevy C3500 Truck V8 7.4L (excluding California Emissions) Downstream O2 Oxygen Sensor
  • 1997-2002 Chevy Camaro V6 3.8L Upstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 1500 Van V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 1500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 1500 Van V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 2500 Van V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 2500 Van V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 2500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 3500 Van V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-2002 Chevy Express 3500 Van V8 5.7L Downstream O2 Oxygen Sensor
  • 2000-2003 Chevy Impala V6 3.8L Upstream O2 Oxygen Sensor
  • 2000 Chevy Impala V6 3.4L Upstream O2 Oxygen Sensor
  • 1996-1998 Chevy K1500 Truck V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy K1500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy K1500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2000 Chevy K2500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2000 Chevy K2500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1998 Chevy K2500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy K3500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-2000 Chevy K3500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 2000 Chevy K3500 Truck V8 7.4L (excluding California Emissions) Downstream O2 Oxygen Sensor
  • 1997-2001 Chevy Lumina V6 3.1L Upstream O2 Oxygen Sensor
  • 1997 Chevy Lumina V6 3.4L Upstream O2 Oxygen Sensor
  • 1998-1999 Chevy Lumina V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-2000 Chevy Malibu V6 3.1L Upstream O2 Oxygen Sensor
  • 1997-1999 Chevy Monte Carlo V6 3.1L Upstream O2 Oxygen Sensor
  • 1998-2003 Chevy Monte Carlo V6 3.8L Upstream O2 Oxygen Sensor
  • 2000 Chevy Monte Carlo V6 3.4L Upstream O2 Oxygen Sensor
  • 1999 Chevy Silverado 1500 V8 5.3L Downstream O2 Oxygen Sensor
  • 1999 Chevy Silverado 1500 V8 4.8L Downstream O2 Oxygen Sensor
  • 1999-2001 Chevy Silverado 1500 V6 4.3L Downstream O2 Oxygen Sensor
  • 2000-2002 Chevy Silverado 1500 V8 4.8L (US Built Models) Downstream O2 Oxygen Sensor
  • 2000-2002 Chevy Silverado 1500 V8 5.3L (excluding Canada Built Models) Downstream O2 Oxygen Sensor
  • 2002 Chevy Silverado 1500 V6 4.3L (8th Vin Digit X) Downstream O2 Oxygen Sensor
  • 2001 Chevy Silverado 1500 HD V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 1999-2001 Chevy Silverado 2500 V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 1999-2000 Chevy Silverado 2500 V8 5.3L Downstream O2 Oxygen Sensor
  • 2001 Chevy Silverado 2500 HD V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 2001 Chevy Silverado 3500 V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 2000-2002 Chevy Suburban 1500 V8 5.3L (excluding Flex Fuel) (US Built Models) Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Suburban C1500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Suburban C2500 V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Suburban C2500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Suburban K1500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Suburban K2500 V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Suburban K2500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1995-2000 Chevy Tahoe V8 5.7L with 17 Bolt Oil Pan Option Downstream O2 Oxygen Sensor
  • 2000-2002 Chevy Tahoe V8 5.3L (8th Vin Digit Z) (US Built Models) Downstream O2 Oxygen Sensor
  • 2000-2002 Chevy Tahoe V8 4.8L (US Built Models) Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Van - P Series Forward Control V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Van - P Series Forward Control V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 Chevy Van - P Series Forward Control V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC C1500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC C1500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC C1500 Truck V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC C2500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC C2500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1998 GMC C2500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC C3500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC C3500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 2000 GMC C3500 Truck V8 7.4L (excluding California Emissions) Downstream O2 Oxygen Sensor
  • 1996-1998 GMC K1500 Truck V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC K1500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC K1500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1998 GMC K2500 Truck V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC K2500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC K2500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC K3500 Truck V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC K3500 Truck V8 5.7L Downstream O2 Oxygen Sensor
  • 2000 GMC K3500 Truck V8 7.4L (excluding California Emissions) Downstream O2 Oxygen Sensor
  • 1996-1997 GMC Safari V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 1500 Van V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 1500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 1500 Van V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 2500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 2500 Van V8 5.0L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 2500 Van V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 3500 Van V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-2002 GMC Savana 3500 Van Downstream O2 Oxygen Sensor
  • 1999 GMC Sierra 1500 V8 4.8L Downstream O2 Oxygen Sensor
  • 1999-2001 GMC Sierra 1500 V6 4.3L Downstream O2 Oxygen Sensor
  • 1999 GMC Sierra 1500 V8 5.3L Downstream O2 Oxygen Sensor
  • 2000-2002 GMC Sierra 1500 V8 4.8L (US Built Models) Downstream O2 Oxygen Sensor
  • 2000-2002 GMC Sierra 1500 V8 5.3L (excluding Canada Built Models) Downstream O2 Oxygen Sensor
  • 2001 GMC Sierra 1500 HD V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 1999 GMC Sierra 2500 V8 5.3L Downstream O2 Oxygen Sensor
  • 2000 GMC Sierra 2500 V8 5.3L (US Built Models) Downstream O2 Oxygen Sensor
  • 2001 GMC Sierra 2500 V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 2001 GMC Sierra 2500 HD V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 2001 GMC Sierra 3500 V8 6.0L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Suburban C1500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Suburban C2500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Suburban C2500 V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Suburban K1500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Suburban K2500 V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Suburban K2500 V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Van - P Series Forward Control V8 5.7L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Van - P Series Forward Control V8 7.4L Downstream O2 Oxygen Sensor
  • 1996-1999 GMC Van - P Series Forward Control V6 4.3L Downstream O2 Oxygen Sensor
  • 1996-2000 GMC Yukon V8 5.7L Downstream O2 Oxygen Sensor
  • 2000-2002 GMC Yukon V8 5.3L (US Built Models) Downstream O2 Oxygen Sensor
  • 2000-2002 GMC Yukon V8 4.8L (US Built Models) Downstream O2 Oxygen Sensor
  • 2001 GMC Yukon V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 2002 GMC Yukon V8 6.0L Downstream O2 Oxygen Sensor
  • 2000-2002 GMC Yukon XL 1500 V8 5.3L (US Built Models) Downstream O2 Oxygen Sensor
  • 2000-2001 GMC Yukon XL 2500 V8 6.0L Downstream O2 Oxygen Sensor Passenger Side
  • 1996-1999 Olds 88 V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-1998 Olds Achieva V6 3.1L Upstream O2 Oxygen Sensor
  • 1999-2000 Olds Alero V6 3.4L Upstream O2 Oxygen Sensor
  • 1996-1999 Olds Aurora V8 4.0L Upstream O2 Oxygen Sensor
  • 1997-1999 Olds Cutlass V6 3.1L Upstream O2 Oxygen Sensor
  • 1996-1997 Olds Cutlass Supreme V6 3.1L Upstream O2 Oxygen Sensor
  • 1998-1999 Olds Intrigue V6 3.5L Upstream O2 Oxygen Sensor
  • 1997-1999 Olds LSS V6 3.8L V8 4.6L V8 5.7L Upstream O2 Oxygen Sensor
  • 1997-1998 Olds Regency V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-2000 Olds Silhouette V6 3.4L Upstream O2 Oxygen Sensor
  • 1996-2003 Pontiac Bonneville V6 3.8L Upstream O2 Oxygen Sensor
  • 1997-2002 Pontiac Firebird V6 3.8L Upstream O2 Oxygen Sensor
  • 1996-1998 Pontiac Grand Am V6 3.1L Upstream O2 Oxygen Sensor
  • 1999-2000 Pontiac Grand Am V6 3.4L Upstream O2 Oxygen Sensor
  • 1997-2003 Pontiac Grand Prix V6 3.8L Upstream O2 Oxygen Sensor
  • 1999-2000 Pontiac Montana V6 3.4L Upstream O2 Oxygen Sensor
  • 1997-1998 Pontiac Trans Sport V6 3.4L Upstream O2 Oxygen Sensor

This part replaces:

  • Standard Motor Products SG272T
Part #: 1AEOS01008

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

How-to Video:

(03:02 min)