Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (21 inches)
  • Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • Replaces dealer part numbers: 36542PR7A51, 36542 PR7 A51
  • 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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Browse 2 questions Browse 2 questions and 2 answers
Does this fit the ex sedan?
Hector V on Sep 22, 2017
BEST ANSWER: What is your year and model so we may confirm fitment?
Does this sensor also fit the DX sedan?
Hector V on Sep 16, 2017
BEST ANSWER: No this does not fit the DX sedan.

How-to Video:

(03:08 min)

Tools List:

    1A - No Tools Needed

  • No Tools Needed



This part replaces:

  • OE # 36542PR7A51
  • Standard Motor Products SG1861

Vehicle Fit

  • 2000-2005 Acura NSX Downstream O2 Oxygen Sensor Rear
  • 1998-2002 Honda Accord Downstream excluding EX Models O2 Oxygen Sensor L4 2.3L
  • 2001-2005 Honda Civic Downstream EX O2 Oxygen Sensor L4 1.7L
  • 1997-2001 Honda Prelude Type SH Upstream O2 Oxygen Sensor
Part #: 1AEOS00048

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