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Home > Mazda > Protege > Oxygen Sensors > 2003 Mazda Protege Upstream O2 Oxygen Sensor for L4 2.0L Turbo (Walker Products)

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2003 Mazda Protege Upstream O2 Oxygen Sensor for L4 2.0L Turbo (Walker Products)


In Stock (Ships same day for orders placed by 3 PM ET)

List Price:$240.62
Our Price: $70.45
 (You Save $170.17)

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Part Number: WKEOS00085

Welcome Message from 1A Auto

Walker Products Oxygen Sensor: 250-24629

Walker Products, an ISO 9001-2008 / TS16949 certified company, specializes in the manufacturing and distribution of Fuel System Components and Automotive Engine Management products. Walker is committed to meeting or exceeding OEM or equivalent standards and specifications. This effort is backed by Walker's own manufacturing, product management and engineering expertise.


  • Brand New Walker Oxygen Sensor
  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (13.0 Inches)
  • Upstream or Downstream Sensor
    • as listed per application
  • 4 wire configuration
  • Replaces dealer part numbers: F62F9F472DD, F62F 9F472 DD, F62Z9F472DD, F62Z 9F472 DD, FP3518861A, FP35 18861 A, FS1G18861, FS1G 18861, FS1G18861A, FS1G 18861 A, FS2V18861A, FS2V 18861 A, FS2V18861B, FS2V 18861 B, FS2V18861B9U, FS2V 18861 B9U, FS7N18861, FS7N 18861, FS7N188619U, FS7N 18861 9U, FSC618861, FSC6 18861, FSC618861A, FSC6 18861 A, FSC618861A9U, FSC6 18861 A9U, FSD718861, FSD7 18861, FSD718861A, FSD7 18861 A, KL6118861, KL61 18861, KL6118861A, KL61 18861 A, KL6118861A9U, KL61 18861 A9U, TA3418861, TA34 18861, TA3418861A, TA34 18861 A, TA3418861B, TA34 18861 B, TA3418861B9U, TA34 18861 B9U, 1821385Z10, 18213 85Z10
  • 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.

1 Year Warranty

This item is backed by a 1 Year Manufacturers Warranty. In the event this item should fail 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.

Part Brand: Walker Products # 250-24629

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