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 (17.75 Inches)
  • Upstream or Downstram Sensor
    • as listed per application
  • 4 wire configuration
  • Replaces dealer part numbers: 12589550, 12570795, 12578624, 12581346, 12586646, 12590750, 12598176, 12603814, 24577303, 8125786240, 81257 86240, 8125907500, 81259 07500, 8245773030, 82457 73030
  • Built and tested to strict quality control standards

Note: For Express / Savana Van models used 1st & 2nd design sensors:

  • 1st Design is marked OE# 25333812
  • 2st Design is marked OE# 19209805

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 Oxygen (O2) Sensor (0:38)
    • Raise and secure the vehicle
    • Disconnect the oxygen sensor wiring harness
    • Remove the O2 sensor with a 7/8 inch wrench
  2. step : Installing the New O2 Sensor (1:42)
    • Twist the new O2 sensor into place
    • Tighten the O2 sensor with a 7/8 inch wrench
    • Connect the O2 sensor wiring harness
    • Lower the vehicle to the ground

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands

  • Wrenches - SAE

  • 7/8 Inch Wrench

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Browse 1 question Browse 1 question and 3 answers
can this be used on either the upstream or downstream?
Samuel on Jun 21, 2017
BEST ANSWER: It depends on your application. This will work for both on some models, but they are specific for others. If you are unsure which part will fit your vehicle I recommend you give us a call at 888-844-3393.

Vehicle Fit

  • 2004-2005 Buick Rainier L6 4.2L Downstream O2 Oxygen Sensor
  • 2004-2006 Buick Rainier V8 5.3L Square Plug Downstream O2 Oxygen Sensor
  • 2003-2005 Chevy Astro Upstream O2 Oxygen Sensor Driver Side
  • 2004-2005 Chevy Colorado L5 3.5L Downstream O2 Oxygen Sensor
  • 2004-2005 Chevy Colorado L4 2.8L Downstream O2 Oxygen Sensor
  • 2003 Chevy Express 1500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003 Chevy Express 1500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 Chevy Express 1500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003 Chevy Express 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 Chevy Express 1500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2003-2004 Chevy Express 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2004-2006 Chevy Express 1500 Van V8 5.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2006 Chevy Express 1500 Van V6 4.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2006 Chevy Express 1500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2004-2006 Chevy Express 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2007 Chevy Express 1500 Van V8 5.3L (excluding California Emissions) Upstream O2 Oxygen Sensor Passenger Side
  • 2007 Chevy Express 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 Chevy Express 2500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003 Chevy Express 2500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 Chevy Express 2500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003 Chevy Express 2500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 Chevy Express 2500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2003-2004 Chevy Express 2500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2004-2006 Chevy Express 2500 Van V8 5.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2005 Chevy Express 2500 Van V6 4.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2006 Chevy Express 2500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2004-2005 Chevy Express 2500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2005-2007 Chevy Express 2500 Van V8 6.0L Upstream O2 Oxygen Sensor Passenger Side
  • 2005-2007 Chevy Express 2500 Van V8 6.0L Downstream O2 Oxygen Sensor
  • 2003-2004 Chevy Express 3500 Van with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 Chevy Express 3500 Van Downstream O2 Oxygen Sensor
  • 2005-2007 Chevy Express 3500 Van V8 6.0L Upstream O2 Oxygen Sensor Passenger Side
  • 2005-2007 Chevy Express 3500 Van V8 6.0L Downstream O2 Oxygen Sensor
  • 2004-2008 Chevy Malibu L4 2.2L Downstream O2 Oxygen Sensor
  • 2006 Chevy SSR Square Plug Downstream O2 Oxygen Sensor
  • 2002-2005 Chevy Trailblazer L6 4.2L Downstream O2 Oxygen Sensor
  • 2006 Chevy Trailblazer V8 5.3L Square Plug Downstream O2 Oxygen Sensor
  • 2006 Chevy Trailblazer V8 6.0L Square Plug Downstream O2 Oxygen Sensor
  • 2006 Chevy Trailblazer EXT V8 5.3L Square Plug Downstream O2 Oxygen Sensor
  • 2004-2005 GMC Canyon L5 3.5L Downstream O2 Oxygen Sensor
  • 2004-2005 GMC Canyon L4 2.8L Downstream O2 Oxygen Sensor
  • 2002-2005 GMC Envoy L6 4.2L Downstream O2 Oxygen Sensor
  • 2006 GMC Envoy V8 5.3L Square Plug Downstream O2 Oxygen Sensor
  • 2006 GMC Envoy XL V8 5.3L Square Plug Downstream O2 Oxygen Sensor
  • 2004-2005 GMC Envoy XUV L6 4.2L Downstream O2 Oxygen Sensor
  • 2003-2005 GMC Safari Upstream O2 Oxygen Sensor Driver Side
  • 2003 GMC Savana 1500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003 GMC Savana 1500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 GMC Savana 1500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 GMC Savana 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 GMC Savana 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 GMC Savana 1500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2004-2006 GMC Savana 1500 Van V6 4.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2006 GMC Savana 1500 Van V8 5.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2006 GMC Savana 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2004-2006 GMC Savana 1500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2007 GMC Savana 1500 Van V8 5.3L (excluding California Emissions) Upstream O2 Oxygen Sensor Passenger Side
  • 2007 GMC Savana 1500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 GMC Savana 2500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 GMC Savana 2500 Van V8 5.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003 GMC Savana 2500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 GMC Savana 2500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 GMC Savana 2500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2003 GMC Savana 2500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2004-2007 GMC Savana 2500 Van V8 4.8L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2006 GMC Savana 2500 Van V8 5.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2005 GMC Savana 2500 Van V6 4.3L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2005 GMC Savana 2500 Van V6 4.3L Downstream O2 Oxygen Sensor
  • 2004-2006 GMC Savana 2500 Van V8 5.3L Downstream O2 Oxygen Sensor
  • 2004-2007 GMC Savana 2500 Van V8 4.8L Downstream O2 Oxygen Sensor
  • 2005-2007 GMC Savana 2500 Van V8 6.0L Upstream O2 Oxygen Sensor Passenger Side
  • 2005-2007 GMC Savana 2500 Van V8 6.0L Downstream O2 Oxygen Sensor
  • 2003-2004 GMC Savana 3500 Van V8 6.0L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor Passenger Side
  • 2003-2004 GMC Savana 3500 Van V8 6.0L Downstream O2 Oxygen Sensor
  • 2004-2007 GMC Savana 3500 Van V8 4.8L Upstream O2 Oxygen Sensor Passenger Side
  • 2004-2007 GMC Savana 3500 Van V8 4.8L Downstream O2 Oxygen Sensor
  • 2005-2007 GMC Savana 3500 Van V8 6.0L Upstream O2 Oxygen Sensor Passenger Side
  • 2005-2007 GMC Savana 3500 Van V8 6.0L Downstream O2 Oxygen Sensor
  • 2003-2005 Isuzu Ascender L6 4.2L Downstream O2 Oxygen Sensor
  • 2002-2004 Olds Bravada Downstream O2 Oxygen Sensor
  • 2006-2007 Pontiac G6 L4 2.4L Downstream O2 Oxygen Sensor
  • 2006-2007 Pontiac Solstice L4 2.4L Downstream O2 Oxygen Sensor
  • 2005 Saab 9-7X L6 4.2L Downstream O2 Oxygen Sensor
  • 2006 Saab 9-7X V8 5.3L Square Plug Downstream O2 Oxygen Sensor
  • 2007 Saturn Sky L4 2.4L Downstream O2 Oxygen Sensor
Part #: 1AEOS00115

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

How-to Video:

(03:12 min)