1AEEK01266-2 Piece O2 Oxygen Sensor Set TRQ OSA61578
false

Replaces

14

1999 Mercury Mountaineer V8 5.0L Downstream Left & Right Bank 2 Piece O2 Oxygen Sensor Set TRQ OSA61578

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$ 74.95
$86.95
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$86.95
14% OFF
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OSA61578

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Recommended for your 1999 Mercury Mountaineer


TRQ

OSA61578

In Stock

Product Reviews

4.9/ 5
14 reviews
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Rating
December 10, 2024

Fix my truck problem and I was very satisfied with this part

May 23, 2024

Good product I recommend it

October 29, 2023
Engine light off. Yea!!!

Sensors work now. Good video. Fast shipment

September 14, 2023
Sell me more. Since I've found 1A auto parts. I'm relieved that my personal vehicle will have extended life. Awesome!!!

Fast reliable, exact parts. In great condition. Can't believe the great performance and gas milage out of my 2011 ford van. Just good stuff.

March 21, 2023
Tim

Fit well. Easy install.

February 24, 2023
I will purchase from 1A Auto again.

Great sensors. Exactly what I needed. 1A processed the order quickly and got the parts on the way to me. Great purchasing experience. Thank you 1A Auto.

January 22, 2023

Mark the box and or label to indicate rather it is the up stream or down. When you buy them on the site it tells you but when they show up your gonna get four boxes that say the same thing with zero indication of where the O2 sensor belongs it wasn't a big deal but for storing parts, it's kind of a organizational mess

October 20, 2022
Great aftermarket part.

Fit right into the socket with no issues, no error codes and car runs a lot better! Even comes with anti seize for the threads pre applied.

June 27, 2022

part fix good just didnt arrive when they said it would

April 30, 2022
Easy installation

These O2 downstream sensors worked great on my 98 Lincoln Town Car.

Showing 1–10 of 14 reviews

Customer Q&A

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Butch February 1, 2023
Looking for Ecm for 4.9 ford automatic transmission ?

We currently do not carry ECM's.

Andra · February 1, 2023
Gregory December 20, 2022
Is this downstream sensors for a 2000 Ford Mustang 3.8?

Yes, this part will fit your vehicle.

Ricale · December 20, 2022
Donald July 19, 2022
will these fit 2003 f-150 xl 4.2l v6 both upstream or downstream?

This kit will include two downstream oxygen sensors for the 2003 Ford F150 with the V6 4.2L engine.

Jessica · July 27, 2022
AL July 16, 2022
Do these fit a 2004 Ford 350 E Super Duty 5.4 gas ?

Yes these will be the downstream sensors for a 2004 Ford E350 SD 5.4L.

T · July 26, 2022
Derek June 5, 2022
Can these two be used both as upstream and downstream on ford explorer 4.0L 6 cyl 2004?

No, these are the downstream sensors only for 2004 Ford Explorer 4.0L SOHC.

Andra · June 6, 2022
Reggie January 6, 2022
Male or female connector?

It is a female connector

Cristina · January 6, 2022
Showing 1–6 of 6 questions
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This part will only fit a 1999 Mercury Mountaineer with these options.