Replaces

Ford Mazda Lincoln Mercury O2 Oxygen Sensor Pair - 1AEEK00778

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Description
Warranty & Shipping
How-To & Tools
Product Reviews
Q&A
Vehicle Fit

Part Details

  • Quantity:   Pair

Our electrical and electronic parts are subject to strict quality testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Item Condition: New

Attention California Customers:

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

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

4.86/ 5.0
7 reviews
5 Stars
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Gas Milage Salvaged
I had 2 failing O2 sensors in my 2000 ford explorer. I was getting lean fuel readings and poor gas mileage. I went a head and purchased these. My fuel trim readings have gone back to factory spec and my gas mileage has been greatly improved. Great purchase.
May 22, 2018
O2 sensors
Fit and worked perfect.Only been installed a few days but are working fine.
October 24, 2018
Perfect fit. Easy to install. My engine light finally went out.
October 29, 2018
O2-Oxygen Sensor
Pleased with the service and shipping time. Will contact with my next purchase
October 31, 2018
Fast and accurate
I ordered these O2 sensors for my 08 Ford Ranger. They were shipped to me quickly and they fit perfectly. So far they have performed flawlessly.
November 28, 2018
Great quality products I will recommend to my friends and family.thank you for quick shipment.
December 2, 2018
service and is great
Write parts never hade problem will order aginen
April 5, 2019
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
who makes the oxygen sensor that yall sell for the ford f150 2006?
Blake M July 30, 2018
We have a few different aftermarket companies build these parts specifically for us, as our 1A Auto house brand. They are manufactured to the same OEM specifications as the original part that came with your vehicle. If you have any further questions, please dont hesitate to ask.
Peter M July 30, 2018
I need 4 oxygen sensors for 2000 Mercury Mountaineer V8 do i just enter the number quality and thats it or do i just enter 1 and it comes with all 4 sensors?
Melvin M May 27, 2019
If you need to change all 4 then order the 4.My 2005 Ford F-150 needed 2 oxygen sensors and that’s what I ordered.You can also call them direct and speak to a person that can help with your order.Hope my answer helps
A C May 27, 2019
It is a pair, just put in 2 for 2 pairs
D A May 28, 2019
If I remember correctly, the sensors come in pairs. You will need to order 2.
S A May 28, 2019
This listing is just for 2 Upstream sensors for your vehicle if it has a V8 5.0L engine. You will also need 2 for the Downstream. Please take a look at part WKEOS00010 for the Downstream. You will need to order 2 of these.
Christa R May 28, 2019
Year Make Model Description
2009-2011Ford E350 Van Super Duty Ford E350 Van Super Duty V10 6.8L Upstream O2 Oxygen Sensor Pair
2012Ford E350 Van Super Duty Ford E350 Van Super Duty V10 6.8L Upstream O2 Oxygen Sensor Pair
2001-2002Ford Expedition Ford Expedition V8 5.4L Upstream O2 Oxygen Sensor Pair
2005-2008Ford Expedition Ford Expedition V8 5.4L Upstream O2 Oxygen Sensor Pair
1999-2001Ford Explorer Ford Explorer V8 5.0L Upstream O2 Oxygen Sensor Pair
1999-2010Ford Explorer Ford Explorer V6 4.0L Upstream O2 Oxygen Sensor Pair
2004-2010Ford Explorer Ford Explorer V8 4.6L Upstream O2 Oxygen Sensor Pair
2001-2010Ford Explorer Sport Trac Ford Explorer Sport Trac V6 4.0L Upstream O2 Oxygen Sensor Pair
2004-2005Ford Explorer Sport Trac Ford Explorer Sport Trac V6 4.0L Downstream O2 Oxygen Sensor Pair
2007-2010Ford Explorer Sport Trac Ford Explorer Sport Trac V8 4.6L Upstream O2 Oxygen Sensor Pair
2004Ford F150 Heritage Truck Ford F150 Heritage Truck Lightning V8 5.4L Supercharged Upstream O2 Oxygen Sensor Pair
2004Ford F150 Heritage Truck Ford F150 Heritage Truck V8 5.4L Upstream O2 Oxygen Sensor Pair
2000-2003Ford F150 Truck Ford F150 Truck Lightning V8 5.4L Supercharged Upstream O2 Oxygen Sensor Pair
2001-2003Ford F150 Truck Ford F150 Truck V8 5.4L Upstream O2 Oxygen Sensor Pair
2004Ford F150 Truck Ford F150 Truck New Body Style V8 5.4L Upstream O2 Oxygen Sensor Pair
2004Ford F150 Truck Ford F150 Truck New Body Style V8 4.6L Upstream O2 Oxygen Sensor Pair
2005-2008Ford F150 Truck Ford F150 Truck V8 4.6L Upstream O2 Oxygen Sensor Pair
2005-2008Ford F150 Truck Ford F150 Truck V8 5.4L Downstream O2 Oxygen Sensor Pair
2005-2008Ford F150 Truck Ford F150 Truck V8 5.4L Upstream O2 Oxygen Sensor Pair
2005-2008Ford F150 Truck Ford F150 Truck V6 4.2L Downstream O2 Oxygen Sensor Pair
2005-2008Ford F150 Truck Ford F150 Truck V6 4.2L Upstream O2 Oxygen Sensor Pair
2005-2008Ford F150 Truck Ford F150 Truck V8 4.6L Downstream O2 Oxygen Sensor Pair
2004-2007Ford Freestar Ford Freestar V6 3.9L Upstream O2 Oxygen Sensor Pair
2004-2007Ford Freestar Ford Freestar V6 4.2L Upstream O2 Oxygen Sensor Pair
2001-2008Ford Ranger Ford Ranger V6 3.0L Upstream O2 Oxygen Sensor Pair
2001-2011Ford Ranger Ford Ranger L4 2.3L Upstream O2 Oxygen Sensor Pair
2001-2011Ford Ranger Ford Ranger V6 4.0L Upstream O2 Oxygen Sensor Pair
1999-2003Ford Windstar Ford Windstar V6 3.8L Upstream O2 Oxygen Sensor Pair
2006-2008Lincoln Mark LT Lincoln Mark LT V8 5.4L Downstream O2 Oxygen Sensor Pair
2006-2008Lincoln Mark LT Lincoln Mark LT V8 5.4L Upstream O2 Oxygen Sensor Pair
2001Lincoln Navigator Lincoln Navigator V8 5.4L Upstream O2 Oxygen Sensor Pair
2005-2008Lincoln Navigator Lincoln Navigator V8 5.4L Upstream O2 Oxygen Sensor Pair
2001-2009Mazda B2300 Truck Mazda B2300 Truck L4 2.3L Upstream O2 Oxygen Sensor Pair
1999-2007Mazda B3000 Truck Mazda B3000 Truck V6 3.0L Upstream O2 Oxygen Sensor Pair
2004-2009Mazda B4000 Truck Mazda B4000 Truck V6 4.0L Upstream O2 Oxygen Sensor Pair
2004-2007Mercury Monterey Mercury Monterey V6 4.2L Upstream O2 Oxygen Sensor Pair
1999-2001Mercury Mountaineer Mercury Mountaineer V6 4.0L Upstream O2 Oxygen Sensor Pair
1999-2001Mercury Mountaineer Mercury Mountaineer V8 5.0L Upstream O2 Oxygen Sensor Pair
2002-2010Mercury Mountaineer Mercury Mountaineer V8 4.6L Upstream O2 Oxygen Sensor Pair
2003-2010Mercury Mountaineer Mercury Mountaineer V6 4.0L Upstream O2 Oxygen Sensor Pair
Part 1AEEK00778
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