Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (25.5 Inches)
  • Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 4 terminal configuration
  • Replaces dealer part numbers: FP5018861A, FP50 18 861 A
  • 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.

Our electrical and electronic parts are subject to strict quality control testing .  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

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.

  1. step : Identifying your Oxygen Sensors (0:57)
    • Upstream oxygen sensors are located in between the engine and the catalytic converter
    • Downstream oxygen sensors are located in the catalytic converter or farther away from the engine than the catalytic converter
    • Locate your vehicle's firing order diagram
    • The bank that contains cylinder one is bank one
    • The bank that does not contain cylinder one is bank two, even if it does not contain cylinder two

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

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How-to Video:

(03:08 min)

Tools List:

    1A - No Tools Needed

  • No Tools Needed



This part replaces:

  • OE # FP5018861A
  • Standard Motor Products SG1082

Vehicle Fit

  • 1999-2000 Mazda Protege Downstream O2 Oxygen Sensor L4 1.8L
  • 2001-2003 Mazda Protege Downstream O2 Oxygen Sensor L4 2.0L
  • 2002-2003 Mazda Protege5 Downstream O2 Oxygen Sensor L4 2.0L
Part #: 1AEOS00069

Ships Same Day for orders placed by 4 P.M. ET

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Customer Feedback

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