Subaru Forester Impreza O2 Oxygen Sensor AM-3838385532

List Price:$49.95
AM Price:$33.99
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Part Number: AM-3838385532


  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (17.8 inches) 
  • Downstream Sensor
  • 4 wire configuration
  • Replaces dealer part numbers: 22690AA420, 22690 AA420, 22690AA540, 22690 AA540, 22690AA640, 22690 AA640
  • 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 then this is the part for you.

Install Note:

You may be required to reset the vehicle computer after installation of this part.


Electrical and electronic parts are not eligible for a refund once installed or plugged in. In the event a manufacturing defect is found, the item may be eligible for an exchange.

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

10 Year Warranty

This item is backed by our 10-year warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

Please note: Any modifications to an item of any kind before contacting us will void any and all warranty coverage for this item. Please contact us before modifying the part so that we have the opportunity to correct the situation.

This part replaces:

  • Walker Products Inc. 250-24295

Vehicle Fit

  • Subaru Forester H4 2.5L Downstream O2 Oxygen Sensor
  • Subaru Impreza H4 2.2L California Emissions (Engine ID EJ223) Downstream O2 Oxygen Sensor
  • Subaru Impreza H4 2.2L (Engine ID EJ222) (excluding California Emissions) Downstream O2 Oxygen Sensor
  • Subaru Impreza H4 2.5L Downstream O2 Oxygen Sensor

Product Reviews

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Good Part
Perfect fit, good operation, great price.....What else is there?
September 2, 2017
over 2 years ago