Specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (21.6 Inches)
  • Upstream or Downstream Sensor
    • as listed per application
  • 4 wire configuration
  • Replaces dealer part numbers: 1588A126, MD184939, MD186392, MD189007, MD319787, MD335916, MD344002, MD345770, MD345771, MD357266, MD366935, MN122267, MN158773, MR507854, MR578532
  • 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.

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 # MD184939
  • Standard Motor Products SG310

Vehicle Fit

  • 1993 Eagle Summit 4 Wheel Drive Downstream O2 Oxygen Sensor L4 1.8L California Emissions
  • 1993 Eagle Summit 4 Wheel Drive Downstream O2 Oxygen Sensor L4 2.4L California Emissions
  • 1994-1996 Eagle Summit Downstream O2 Oxygen Sensor L4 1.8L
  • 1994-1996 Eagle Summit Downstream O2 Oxygen Sensor L4 2.4L
  • 1995-1998 Eagle Talon TSI 2 Wheel Drive Downstream O2 Oxygen Sensor L4 2.0L Turbo
  • 1997-1998 Mitsubishi Diamante Upstream or Downstream O2 Oxygen Sensor V6 3.5L
  • 1999-2000 Mitsubishi Diamante Upstream or Downstream O2 Oxygen Sensor V6 3.5L
  • 1995-1999 Mitsubishi Eclipse 2 Wheel Drive Downstream O2 Oxygen Sensor L4 2.0L Turbo
  • 2000 Mitsubishi Eclipse Upstream or Downstream O2 Oxygen Sensor L4 2.4L excluding California Emissions
  • 2000 Mitsubishi Eclipse Upstream O2 Oxygen Sensor V6 3.0L excluding California Emissions
  • 1993 Mitsubishi Expo Downstream O2 Oxygen Sensor L4 1.8L California Emissions
  • 1993-1995 Mitsubishi Expo Downstream O2 Oxygen Sensor L4 2.4L
  • 1999-2000 Mitsubishi Galant Upstream or Downstream O2 Oxygen Sensor L4 2.4L excluding California Emissions
  • 1999-2000 Mitsubishi Galant Upstream or Downstream O2 Oxygen Sensor V6 3.0L excluding California Emissions
  • 2002-2007 Mitsubishi Lancer Downstream O2 Oxygen Sensor L4 2.0L
  • 2003 Mitsubishi Lancer Evolution Downstream O2 Oxygen Sensor L4 2.0L Turbo
  • 2003 Mitsubishi Outlander All Wheel Drive Downstream O2 Oxygen Sensor L4 2.4L
  • 1993 Plymouth Colt All Wheel Drive Downstream O2 Oxygen Sensor L4 2.4L California Emissions
  • 1994 Plymouth Colt Downstream O2 Oxygen Sensor L4 2.4L
  • 1993 Plymouth Colt-Vista 4 Wheel Drive Downstream O2 Oxygen Sensor L4 2.4L California Emissions
  • 1994 Plymouth Colt-Vista Downstream O2 Oxygen Sensor L4 2.4L
Part #: 1AEOS00092

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

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