Replaces

2004-2006 Subaru Baja Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L (excluding Turbo Models)

Part Details

  • Part Type: Air / Fuel Ratio

This part replaces:

  • STANDARD MOTOR PRODUCTS SG1858
  • OE # 22641AA140, 22641AA280

  • New

This Oxygen O2 Sensor (Air / Fuel Ratio) is a new, aftermarket replacement part that has the following specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (21.4 inches)
  • Upstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 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 fail an emission test or run poorly 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

  • 2004-2005 Honda Civic EX Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for L4 1.7L
  • 2003 Subaru Baja Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L
  • 2004-2006 Subaru Baja Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L (excluding Turbo Models)
  • 2003-2004 Subaru Forester Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L
  • 2003-2004 Subaru Impreza Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L
  • 2003-2004 Subaru Impreza Outback Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L
  • 2003 Subaru Legacy Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L
  • 2004 Subaru Legacy Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L (excluding Turbo Models)
  • 2003 Subaru Outback Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L
  • 2004 Subaru Outback Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.5L (excluding Turbo Models)
$219.95
Part #: 1AEOS00036

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