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.

Returns Note:

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.

  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

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

This part replaces:

  • Standard Motor Products SG40T
Part #: 1AEOS01200


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(03:08 min)