Feuling Parts Oxygen Sensor — 12 mm thread, gray

Reliable oxygen sensing for precise air-fuel control.

This sensor uses a precision-stabilized zirconium dioxide sensing element with surface-coated platinum electrodes and a porous protective layer to resist contamination and particulate erosion. A slow or failing oxygen sensor can reduce fuel economy by 10–15%, increase exhaust emissions, and cause poor drivability. Typical service life in a properly tuned engine is 30,000–50,000 miles. Meets or exceeds original equipment specifications and is made in the U.S.A.