NGK Mazda RX-8 2011-2009 Direct Fit Oxygen Sensor

NGK Mazda RX-8 2011-2009 Direct Fit Oxygen Sensor

Marsoni

M251S

$115.79

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

NGK Mazda RX-8 2011-2009 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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Great fit, and lot more more robust in build than the OEM filter it replaces. I've replaced the factory cabin air filters in at least 3 vehicles with these, when the time came to replace. Side note: This one went into a 2020 Lincoln Aviator and --consistent with my experience with previous Lincoln models -- the retaining tabs on the filter housing door snapped off when I was trying to remove it. Nothing to do with the K&N filter, but I just don't understand why Lincoln can't design a better housing door mechanism.

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Reviewed in the United States on September 16, 2025

Verified Purchase

Zoloft

Grantham, US

★★★★★ 5

Great fit, great replacement for standard filter.

Size: 1 Count (Pack of 1)

Very tight fit, but fit it does. I put this in my 2.5L Ford Escape Hybrid 2020. Fits tight, but well, so no wiggling.

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Reviewed in the United States on September 8, 2025

Verified Purchase

Glen K

Chelsea, US

★★★★★ 5

Consistently high quality products

Size: 1 Count (Pack of 1)

Have used both their cabin and engine filters for all of my vehicles and will continue with each new vehicle I get. I like that they last a LONG time, are reusable (washable), and help the vehicle run better.

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Reviewed in the United States on July 7, 2025