FourGreen Oxygen Sensor O2 Lower Right For 2003-2009 Sonata, Santa Fe, Tucson, Optima 2.7L V6

Got a check engine light on in your Hyundai or Kia?

This might be your fix.

Up for sale is a brand new FourGreen oxygen sensor.

It's the lower right (downstream) sensor for a bunch of models with the 2.7L V6 engine.

We're talking the 2003-2009 Hyundai Sonata, Santa Fe, and Tucson, and the Kia Optima from those same years.

It's a direct replacement, meaning it's a simple bolt-in job.

The OEM part numbers it replaces are 3921037520, 39210-37520, and 39210-37520FG.

It's manufactured in Korea and comes with a manufacturer's warranty.

It's a brand new unit, not some refurbished junk, so you can trust it to last.

Get your fuel mixture back on track and pass that emissions test with this new sensor.