NGK Audi A8 Quattro 2009-2005 Direct Fit Oxygen Sensor

NGK Audi A8 Quattro 2009-2005 Direct Fit Oxygen Sensor

Marsoni

M251S

$171.00

Get it in 3 business days with 1 day shipping. Friday, May 29

NGK Audi A8 Quattro 2009-2005 Direct Fit Oxygen SensorNTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic

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Much thinner than I expected, but installation went better than I'd thought it would. Needed to line the interior of the engine cover of a Ford E450 RV. Tried nitrile gloves, but they stuck to the material so did it bare handed. Cut easily with a fresh razor blade. Pressed in place with a plastic putty knife. We'll see the effectiveness on the next trip.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on July 3, 2025

Verified Purchase

Kev

Charlottesville, US

★★★★★ 5

Makes For Quiet Rides

Model: 10 SqFt(0.95 SqM)

Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 15, 2026