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Check engine light on?
If it's an O2 sensor code on your 2006-2011 Honda Civic, this is the upstream (air/fuel ratio) sensor you need.

Made by RIGHTPARTS, it's a direct replacement for OEM part number 36531-RMX-A01.

Also crosses to 234-9063.
It's a 4-wire sensor, mounts in the engine compartment, and comes ready to install.
One piece, wired, includes the connector.
Works with both metal and rubber components.
One-year warranty.

If your fuel mileage has dropped or the engine just doesn't feel right, a bad upstream sensor is a common culprit.

Swap it out, clear the code, and get back to driving right.

Made for Civics 2006 through 2011.
4.5 out of 5