1AEOS01201-Ford Mazda Lincoln Mercury O2 Oxygen Sensor

Replaces

1994 Mazda B4000 Truck V6 4.0L Upstream O2 Oxygen Sensor

DIY Solutions 1AEOS01201 1AEOS01201-1279713-1994
Guaranteed to fit 1994 Mazda B4000 Truck

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Part 1AEOS01201
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DIY Solutions
Brand #: EMS00442

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Description

Vehicle Fit

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Install Tip: You may be required to reset the vehicle computer after installation of this part.

Direct Fit Replacement - Guaranteed to fit and function for your specific application
Quality Tested - built to a strict level of product standards.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

Returns: Parts with electrical components cannot be returned once installed.

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Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses.  Final shipping costs are available at checkout.

O2 Sensors is it Upstream or Downstream?

Created on: 2021-01-16

Does your vehicle need an upstream or a downstream oxygen sensor? In this video, the experts at 1A Auto show you how to identify your O2 sensors to find out which part you need.

  1. step 1 : Identifying your Oxygen Sensors
    • 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

Installation Video
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Fits these Makes

Year Make Model Description
1990-1995Ford Aerostar Ford Aerostar V6 3.0L Upstream O2 Oxygen Sensor
1996-1997Ford Aerostar Ford Aerostar V6 4.0L Downstream O2 Oxygen Sensor
1990-1992Ford Bronco Ford Bronco L6 4.9L Upstream O2 Oxygen Sensor
1996Ford Bronco Ford Bronco V8 5.0L Downstream O2 Oxygen Sensor
1996Ford Bronco Ford Bronco V8 5.8L Downstream O2 Oxygen Sensor
1990Ford Bronco II Ford Bronco II V6 2.9L with 4 Wire Sensor Upstream O2 Oxygen Sensor
1990Ford E150 Van Ford E150 Van L6 4.9L Upstream O2 Oxygen Sensor
1990-1994Ford E150 Van Ford E150 Van V8 5.8L Over 8500LB GVW Upstream O2 Oxygen Sensor
1996Ford E150 Van Ford E150 Van L6 4.9L Downstream O2 Oxygen Sensor
1996Ford E150 Van Ford E150 Van V8 5.8L Downstream O2 Oxygen Sensor
1996Ford E150 Van Ford E150 Van V8 5.0L Downstream O2 Oxygen Sensor
1990-1991Ford E250 Van Ford E250 Van V8 5.8L Upstream O2 Oxygen Sensor
1990Ford E250 Van Ford E250 Van L6 4.9L Upstream O2 Oxygen Sensor
1990-1991Ford E250 Van Ford E250 Van V8 7.5L with 4 Wire Sensor Upstream O2 Oxygen Sensor
1990Ford E350 Van Ford E350 Van L6 4.9L Upstream O2 Oxygen Sensor
1990-1996Ford E350 Van Ford E350 Van V8 5.8L Upstream O2 Oxygen Sensor
1990-1993Ford E350 Van Ford E350 Van V8 7.5L Upstream O2 Oxygen Sensor
1996Ford E350 Van Ford E350 Van V8 7.5L Downstream O2 Oxygen Sensor
1996Ford E350 Van Ford E350 Van L6 4.9L Downstream O2 Oxygen Sensor
1996Ford E350 Van Ford E350 Van V8 5.8L Downstream O2 Oxygen Sensor
2001-2009Ford Escape Ford Escape V6 3.0L Downstream O2 Oxygen Sensor
2009-2010Ford Escape Ford Escape L4 2.5L Downstream O2 Oxygen Sensor
2010Ford Escape Ford Escape V6 3.0L Downstream Rear Bank O2 Oxygen Sensor
1991-1994Ford Explorer Ford Explorer V6 4.0L OHV (8th Vin Digit X) Upstream O2 Oxygen Sensor
1998-2000Ford Explorer Ford Explorer V6 4.0L OHV (8th Vin Digit X) Downstream O2 Oxygen Sensor
1998Ford Explorer Ford Explorer V6 4.0L SOHC (8th Vin Digit E) Upstream O2 Oxygen Sensor
1990-1995Ford F150 Truck Ford F150 Truck L6 4.9L Upstream O2 Oxygen Sensor
1996Ford F150 Truck Ford F150 Truck Downstream O2 Oxygen Sensor
1990-1994Ford F250 Truck Ford F250 Truck V8 5.8L Over 8500LB GVW Upstream O2 Oxygen Sensor
1990-1993Ford F250 Truck Ford F250 Truck V8 7.5L with 4 Wire Sensor Upstream O2 Oxygen Sensor
1990-1995Ford F250 Truck Ford F250 Truck L6 4.9L Upstream O2 Oxygen Sensor
1995-1996Ford F250 Truck Ford F250 Truck V8 5.8L Upstream O2 Oxygen Sensor
1996Ford F250 Truck Ford F250 Truck V8 7.5L with California Emissions Upstream O2 Oxygen Sensor
1996Ford F250 Truck Ford F250 Truck Gas Engine Downstream O2 Oxygen Sensor
1990-1993Ford F350 Truck Ford F350 Truck V8 7.5L with 4 Wire Sensor Upstream O2 Oxygen Sensor
1990-1994Ford F350 Truck Ford F350 Truck V8 5.8L Upstream O2 Oxygen Sensor
1991-1995Ford F350 Truck Ford F350 Truck L6 4.9L Upstream O2 Oxygen Sensor
1995Ford F350 Truck Ford F350 Truck V8 5.8L with California Emissions Upstream O2 Oxygen Sensor
1996Ford F350 Truck Ford F350 Truck V8 7.5L Downstream O2 Oxygen Sensor
1996Ford F350 Truck Ford F350 Truck V8 5.8L with Federal Emissions Upstream O2 Oxygen Sensor
1996-1997Ford F350 Truck Ford F350 Truck V8 5.8L Downstream O2 Oxygen Sensor
1996Ford F350 Truck Ford F350 Truck L6 4.9L Downstream O2 Oxygen Sensor
2010Ford Flex Ford Flex V6 3.5L Turbo Downstream Rear Bank O2 Oxygen Sensor
2007-2009Ford Fusion Ford Fusion V6 3.0L Downstream Rear Bank O2 Oxygen Sensor
2010Ford Fusion Ford Fusion L4 2.5L Downstream O2 Oxygen Sensor
2010Ford Fusion Ford Fusion V6 3.5L Downstream Rear Bank O2 Oxygen Sensor
1990-1992Ford Ranger Ford Ranger V6 2.9L Upstream O2 Oxygen Sensor
1990-1994Ford Ranger Ford Ranger V6 4.0L Upstream O2 Oxygen Sensor
1991-1994Ford Ranger Ford Ranger V6 3.0L Upstream O2 Oxygen Sensor
1998-2000Ford Ranger Ford Ranger V6 4.0L Automatic Transmission Downstream O2 Oxygen Sensor
1998-2001Ford Ranger Ford Ranger L4 2.5L Downstream O2 Oxygen Sensor
1998-2000Ford Ranger Ford Ranger V6 3.0L Automatic Transmission Downstream O2 Oxygen Sensor
2001-2003Ford Ranger Ford Ranger V6 4.0L Downstream O2 Oxygen Sensor
2004-2005Ford Ranger Ford Ranger V6 3.0L Downstream O2 Oxygen Sensor
2006-2010Ford Ranger Ford Ranger L4 2.3L Downstream O2 Oxygen Sensor
2006Ford Ranger Ford Ranger V6 3.0L Downstream O2 Oxygen Sensor
2006Ford Ranger Ford Ranger V6 3.0L Downstream Passenger Side O2 Oxygen Sensor
2010Ford Taurus Ford Taurus V6 3.5L Turbo Downstream O2 Oxygen Sensor
2010Lincoln MKS Lincoln MKS V6 3.5L Downstream Rear Bank O2 Oxygen Sensor
2010-2011Lincoln MKT Lincoln MKT V6 3.5L Downstream Rear Bank O2 Oxygen Sensor
1994-1997Mazda B2300 Truck Mazda B2300 Truck L4 2.3L Downstream O2 Oxygen Sensor
2001-2003Mazda B2300 Truck Mazda B2300 Truck L4 2.3L Downstream O2 Oxygen Sensor
2008-2009Mazda B2300 Truck Mazda B2300 Truck L4 2.3L Downstream O2 Oxygen Sensor
1998-2001Mazda B2500 Truck Mazda B2500 Truck L4 2.5L Downstream O2 Oxygen Sensor
1994Mazda B3000 Truck Mazda B3000 Truck V6 3.0L Upstream O2 Oxygen Sensor
1995-1996Mazda B3000 Truck Mazda B3000 Truck V6 3.0L Automatic Transmission Downstream O2 Oxygen Sensor
2001-2003Mazda B3000 Truck Mazda B3000 Truck V6 3.0L Downstream O2 Oxygen Sensor
1994Mazda B4000 Truck Mazda B4000 Truck V6 4.0L Upstream O2 Oxygen Sensor
1995Mazda B4000 Truck Mazda B4000 Truck V6 4.0L Downstream O2 Oxygen Sensor
1996Mazda B4000 Truck Mazda B4000 Truck V6 4.0L Automatic Transmission Downstream O2 Oxygen Sensor
1997-1998Mazda B4000 Truck Mazda B4000 Truck V6 4.0L Downstream O2 Oxygen Sensor
1991-1994Mazda Navajo Mazda Navajo V6 4.0L Upstream O2 Oxygen Sensor
2001-2006Mazda Tribute Mazda Tribute V6 3.0L Downstream O2 Oxygen Sensor
2005-2006Mazda Tribute Mazda Tribute L4 2.3L Downstream O2 Oxygen Sensor
2008Mazda Tribute Mazda Tribute L4 2.3L Downstream O2 Oxygen Sensor
2008-2011Mazda Tribute Mazda Tribute V6 3.0L Downstream O2 Oxygen Sensor
2005-2010Mercury Mariner Mercury Mariner V6 3.0L Downstream O2 Oxygen Sensor
2009-2010Mercury Mariner Mercury Mariner L4 2.5L Downstream O2 Oxygen Sensor
2007-2009Mercury Milan Mercury Milan V6 3.0L Front Wheel Drive Downstream Rear Bank O2 Oxygen Sensor
2010Mercury Milan Mercury Milan L4 2.5L Downstream O2 Oxygen Sensor
1998Mercury Mountaineer Mercury Mountaineer V6 4.0L Upstream O2 Oxygen Sensor

Part Interchange

Brand Label Part Number
DIY Solutions EMS00442
Walker Products 250-24127

This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.

DIY Solutions
Brand #: EMS00442
Product Reviews
5.00/ 5.0 2
2 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
2
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November 20, 2018
This was the right part for the right price. Man, after the rats chewed the wiring on my original sensor, my low-end rpm was really rough. Now my truck runs great - And Thank you 1A for the clear cross-references, etc., so I could make certain my order would fit.
July 25, 2019
Customer Service was outstanding and I received my O2 sensor within days.
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Mazda is a registered trademark of Mazda Motor Corporation. 1A Auto is not affiliated with or sponsored by Mazda or Mazda Motor Corporation. See all trademarks.

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This part will only fit a 1994 Mazda B4000 Truck with these options.