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

Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (23.6 Inches)
  • Upstream or Downstream Sensor
    • as listed per application
  • 4 wire configuration
  • Built and tested to strict quality control standards
  • Includes removal and installation tool

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 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
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O2 sensor and tool
I highly recommend this product. It is an exact replacement for the original one everything fits perfectly. The tool makes it extremely easy to remove the old one and install the new one.
February 9, 2017
Purchased
1 year ago
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Vehicle Fit

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  • 2003 Chevy Express 2500 Van V8 6.0L with OE # 25333812 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool
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  • 2003 Chevy Express 3500 Van V8 6.0L with OE # 25333812 Oxygen Sensor Downstream O2 Oxygen Sensor with Install Tool
  • 2004 Chevy Express 3500 Van V8 6.0L Upstream O2 Oxygen Sensor with Install Tool Driver Side
  • 2004 Chevy Express 3500 Van V8 6.0L CNG with OE # 25333812 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool
  • 2004-2007 Chevy Express 3500 Van V8 6.0L Upstream O2 Oxygen Sensor with Install Tool Driver Side
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  • 2003-2005 Chevy Silverado 1500 V8 4.8L Downstream O2 Oxygen Sensor with Install Tool
  • 2006 Chevy Silverado 1500 V6 4.3L Upstream O2 Oxygen Sensor with Install Tool
  • 2006 Chevy Silverado 1500 V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2007 Chevy Silverado 1500 New Body Style V8 4.8L Downstream O2 Oxygen Sensor with Install Tool
  • 2007 Chevy Silverado 1500 Classic V8 6.0L Downstream O2 Oxygen Sensor with Install Tool
  • 2002-2003 Chevy Silverado 1500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2005-2006 Chevy Silverado 1500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2007 Chevy Silverado 1500 HD Classic V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
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  • 2002-2004 Chevy Silverado 2500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2002-2006 Chevy Silverado 2500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2007 Chevy Silverado 2500 HD New Body Style V8 6.0L Downstream O2 Oxygen Sensor with Install Tool
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  • 2002-2006 Chevy Silverado 3500 V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
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  • 2003 GMC Savana 1500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool Driver Side
  • 2003 GMC Savana 1500 Van V6 4.3L with OE # 25333812 Oxygen Sensor Downstream O2 Oxygen Sensor with Install Tool
  • 2003 GMC Savana 1500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Downstream O2 Oxygen Sensor with Install Tool
  • 2003 GMC Savana 1500 Van V8 5.3L Downstream O2 Oxygen Sensor with Install Tool
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  • 2003 GMC Savana 2500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool Driver Side
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  • 2003 GMC Savana 2500 Van V6 4.3L with OE # 19209805 Oxygen Sensor Downstream O2 Oxygen Sensor with Install Tool
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  • 2004 GMC Savana 2500 Van V8 6.0L CNG with OE # 25333812 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool
  • 2004 GMC Savana 2500 Van V8 6.0L Upstream O2 Oxygen Sensor with Install Tool Driver Side
  • 2004-2007 GMC Savana 2500 Van V8 4.8L Upstream O2 Oxygen Sensor with Install Tool Driver Side
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  • 2004 GMC Savana 2500 Van V8 6.0L CNG with OE # 25333812 Oxygen Sensor Downstream O2 Oxygen Sensor with Install Tool
  • 2004-2006 GMC Savana 2500 Van V6 4.3L Downstream O2 Oxygen Sensor with Install Tool
  • 2004 GMC Savana 2500 Van V8 6.0L Downstream O2 Oxygen Sensor with Install Tool
  • 2004-2007 GMC Savana 2500 Van V8 4.8L Downstream O2 Oxygen Sensor with Install Tool
  • 2003 GMC Savana 3500 Van V8 6.0L with OE # 25333812 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool
  • 2003 GMC Savana 3500 Van V8 6.0L Downstream O2 Oxygen Sensor with Install Tool
  • 2004-2007 GMC Savana 3500 Van V8 6.0L Upstream O2 Oxygen Sensor with Install Tool Driver Side
  • 2004 GMC Savana 3500 Van V8 6.0L CNG with OE # 25333812 Oxygen Sensor Upstream O2 Oxygen Sensor with Install Tool
  • 2004 GMC Savana 3500 Van V8 6.0L Upstream O2 Oxygen Sensor with Install Tool Driver Side
  • 2004-2007 GMC Savana 3500 Van V8 4.8L Upstream O2 Oxygen Sensor with Install Tool Driver Side
  • 2004-2007 GMC Savana 3500 Van V8 6.0L Downstream O2 Oxygen Sensor with Install Tool
  • 2004-2007 GMC Savana 3500 Van V8 4.8L Downstream O2 Oxygen Sensor with Install Tool
  • 2004 GMC Savana 3500 Van V8 6.0L CNG with OE # 25333812 Oxygen Sensor Downstream O2 Oxygen Sensor with Install Tool
  • 2004 GMC Savana 3500 Van V8 6.0L Downstream O2 Oxygen Sensor with Install Tool
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  • 2007 GMC Sierra 1500 Classic V8 4.8L Downstream O2 Oxygen Sensor with Install Tool
  • 2002-2003 GMC Sierra 1500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2005-2006 GMC Sierra 1500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2007 GMC Sierra 1500 HD Classic V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2002-2004 GMC Sierra 2500 V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
  • 2002-2006 GMC Sierra 2500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side
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Part #: 1AEEK00685

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

How-to Video:

(03:02 min)