Feuling 12mm O2 Sensor - Rear - 9904

Precision manufactured with a ceramic body made of stabilized zirconium dioxide, surface coated with gas-permeable platinum electrodes and a porous ceramic to help prevent erosion due to contamination and particulates in the exhaust gases
Slow reading oxygen sensors can cause a drop in fuel economy of 10-15%, excessive exhaust emissions and poor drivability
Life expectancy of an average oxygen sensor in a properly tuned engine is typically 30,000-50,000 miles
Narrow band O2 sensors available in 12.5in., 16.25in. and 22.25in. overall lengths
Replacement Wide Band O2 sensor for aftermarket ignition tuners also available; overall length is 30.25in.
All sensors meet or exceed OE specifications
Made in the USA