This Oxygen O2 Sensor is a new, aftermarket replacement part that has the following specifications:

  • Four wire O2 sensor
  • Direct Fit
    -Correct 19.6" harness length
    -Correct Connector
    -No cutting or splicing
  • Stainless steel used for alloy components
  • Built and tested to strict quality control standards
  • 3 Wire sensor


A direct replacement. If you have a bad O2 sensor causing your vehicle to idle 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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Vehicle Fit

  • 1987-1990 Ford Bronco V8 5.0L Upstream O2 Oxygen Sensor
  • 1989-1990 Ford Bronco II V6 2.9L Upstream O2 Oxygen Sensor
  • 1987-1989 Ford E150 Van L6 4.9L Upstream O2 Oxygen Sensor
  • 1987-1988 Ford E150 Van V8 5.0L Upstream O2 Oxygen Sensor
  • 1988-1991 Ford E150 Van V8 7.5L Upstream O2 Oxygen Sensor
  • 1989 Ford E150 Van V8 5.8L Upstream O2 Oxygen Sensor
  • 1987-1989 Ford E250 Van L6 4.9L Upstream O2 Oxygen Sensor
  • 1987-1988 Ford E250 Van V8 5.0L Upstream O2 Oxygen Sensor
  • 1988-1991 Ford E250 Van V8 7.5L Upstream O2 Oxygen Sensor
  • 1989 Ford E250 Van V8 5.8L Upstream O2 Oxygen Sensor
  • 1987-1989 Ford E350 Van L6 4.9L Upstream O2 Oxygen Sensor
  • 1987-1988 Ford E350 Van V8 5.0L Upstream O2 Oxygen Sensor
  • 1988-1991 Ford E350 Van V8 7.5L Upstream O2 Oxygen Sensor
  • 1989 Ford E350 Van V8 5.8L Upstream O2 Oxygen Sensor
  • 1987-1990 Ford F150 Truck V8 5.0L Upstream O2 Oxygen Sensor
  • 1987-1989 Ford F150 Truck L6 4.9L Upstream O2 Oxygen Sensor
  • 1988-1989 Ford F150 Truck V8 5.8L Upstream O2 Oxygen Sensor
  • 1987-1990 Ford F250 Truck V8 5.0L Upstream O2 Oxygen Sensor
  • 1987-1989 Ford F250 Truck L6 4.9L Upstream O2 Oxygen Sensor
  • 1988-1989 Ford F250 Truck V8 7.5L Upstream O2 Oxygen Sensor
  • 1988-1989 Ford F250 Truck V8 5.8L Upstream O2 Oxygen Sensor
  • 1987-1990 Ford F350 Truck V8 5.0L Upstream O2 Oxygen Sensor
  • 1988-1989 Ford F350 Truck V8 5.8L Upstream O2 Oxygen Sensor
  • 1988-1989 Ford F350 Truck V8 7.5L Upstream O2 Oxygen Sensor
  • 1989-1992 Ford Ranger V6 2.9L Upstream O2 Oxygen Sensor
  • 1987-1988 Ford Taurus L4 2.5L Upstream O2 Oxygen Sensor
  • 1990 Ford Taurus L4 2.5L Upstream O2 Oxygen Sensor
  • 1987-1991 Ford Tempo L4 2.3L Upstream O2 Oxygen Sensor
  • 1987-1991 Mercury Topaz L4 2.3L Upstream O2 Oxygen Sensor

This part replaces:

  • Standard Motor Products SG40T
Part #: 1AEOS01200

How-to Video:

(03:08 min)