Replaces

O2 Oxygen Sensor - 1AEOS00072

This part replaces:

  • STANDARD MOTOR PRODUCTS SG1066
  • OE # 12572705

  • New

Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (14.4 Inches)
  • Upstream or Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 4 terminal configuration
  • Replaces dealer part numbers: 12572705
  • 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.

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.


Vehicle Fit

  • 2003-2006 Cadillac Escalade O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 Cadillac Escalade ESV O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 Cadillac Escalade EXT O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 Chevy Avalanche 2500 O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2007 Chevy Silverado 1500 O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003 Chevy Silverado 1500 HD O2 Oxygen Sensor Upstream for V8 6.0L
  • 2005-2007 Chevy Silverado 1500 HD Upstream O2 Oxygen Sensor
  • 2003-2004 Chevy Silverado 2500 Cab & Chassis O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2009 Chevy Silverado 2500 HD Cab & Chassis O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2007 Chevy Silverado 2500 HD O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2007 Chevy Silverado 2500 HD O2 Oxygen Sensor Downstream Passenger Side for V8 8.1L
  • 2010 Chevy Silverado 2500 HD Cab & Chassis O2 Oxygen Sensor Upstream (excluding Flex Fuel) for V8 6.0L
  • 2003-2007 Chevy Silverado 3500 O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2007 Chevy Silverado 3500 O2 Oxygen Sensor Downstream Passenger Side for V8 8.1L
  • 2003-2009 Chevy Silverado 3500 Cab & Chassis O2 Oxygen Sensor Upstream for V8 6.0L
  • 2010 Chevy Silverado 3500 Cab & Chassis O2 Oxygen Sensor Upstream (excluding Flex Fuel) for V8 6.0L
  • 2003-2006 Chevy Suburban 2500 O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 Chevy Suburban 2500 O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2006 Chevy Suburban 2500 O2 Oxygen Sensor Downstream Passenger Side for V8 8.1L
  • 2003-2007 GMC Sierra 1500 O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003 GMC Sierra 1500 HD O2 Oxygen Sensor Upstream for V8 6.0L
  • 2005-2007 GMC Sierra 1500 HD Upstream O2 Oxygen Sensor
  • 2003-2004 GMC Sierra 2500 Cab & Chassis O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2009 GMC Sierra 2500 HD Cab & Chassis O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2007 GMC Sierra 2500 HD O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2007 GMC Sierra 2500 HD Downstream O2 Oxygen Sensor for V8 8.1L Passenger Side
  • 2010 GMC Sierra 2500 HD Cab & Chassis O2 Oxygen Sensor Upstream (excluding Flex Fuel) for V8 6.0L
  • 2003-2007 GMC Sierra 3500 O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2007 GMC Sierra 3500 O2 Oxygen Sensor Downstream for V8 8.1L Passenger Side
  • 2003-2009 GMC Sierra 3500 Cab & Chassis O2 Oxygen Sensor Upstream for V8 6.0L
  • 2010 GMC Sierra 3500 Cab & Chassis O2 Oxygen Sensor Upstream (excluding Flex Fuel) for V8 6.0L
  • 2003-2006 GMC Yukon O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 GMC Yukon XL 2500 O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 GMC Yukon XL 2500 O2 Oxygen Sensor Upstream for V8 8.1L
  • 2003-2006 GMC Yukon XL 2500 O2 Oxygen Sensor Downstream Passenger Side for V8 8.1L
  • 2003-2006 GMC Yukon XL Denali O2 Oxygen Sensor Upstream for V8 6.0L
  • 2003-2006 Hummer H2 O2 Oxygen Sensor Upstream for V8 6.0L
$99.95
Save 43%
List: $175.24 Save: $75.29
Only 2 left in stock
Part #: 1AEOS00072

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