2001-2001 Mazda Protege Upstream O2 Oxygen Sensor for L4 1.6L (Walker Products)

This part replaces:

  • Walker Products 250-24366

  • New

Walker Products Oxygen Sensor: 250-24366

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 (18.25 Inches)
  • Upstream Sensor
    • as listed per application
  • 4 wire configuration
  • Replaces dealer part numbers: BP8J18861B, BP8J 18861 B, BP8J18861B9U, BP8J 18861 B9U, FSE118861, FSE1 18861, FSE118861A, FSE1 18861 A, FSE118861B, FSE1 18861 B, GY0118861A, GY01 18861 A, GY0118861A9U, GY01 18861 A9U, ZM0318861, ZM03 18861, ZM0318861A, ZM03 18861 A, ZM0318861A9U, ZM03 18861 A9U
  • 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

  • 2000-2001 Mazda MPV Upstream Front Bank O2 Oxygen Sensor for V6 2.5L (Walker Products)
  • 2004-2005 Mazda Miata MAZDASPEED Upstream O2 Oxygen Sensor for L4 1.8L Turbo (Walker Products)
  • 1999-2000 Mazda Protege Upstream O2 Oxygen Sensor for L4 1.6L California Emissions (Walker Products)
  • 2001 Mazda Protege Upstream O2 Oxygen Sensor for L4 1.6L (Walker Products)
Only 2 left in stock
Part #: WKEOS00133

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Walker Products
Brand #: 250-24366

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