NTK Performance Oxygen Sensor; Upstream; Front (99-09 Mustang V6; 99-04 4.6L Mustang)

Regain Lost Power. A bad oxygen (aka O2) sensor can cause poor performance, lousy fuel economy, the dreaded check engine light, and even cause you to fail emissions testing. So replace those worn out sensors with brand new NTK sensors for superior, consistent performance.
 
Exceeds OEM Quality. Designed with a waterproof factory-fitted connector to ensure a perfect fit every time, NTK's oxygen sensors meet or exceed OE specifications and are built with the highest quality materials and craftsmanship to ensure a superior quality direct replacement for your worn or failed OEM sensors.

Application. This NTK Performance Oxygen Sensor is designed to be a direct performance replacement for the Mustang. please see the NTK Performance Oxygen Sensor - Front (upstream) applications below:

• 1999 to 2009 V6 Mustangs
• 1999 to 2004 GT Mustangs
• 2003 to 2004 Mach 1 Mustangs
• 2001 Bullitt Mustangs
• 1999 to 2004 SVT Cobra Mustangs.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov