NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

This Part Fits:

Year	Make	Model	Submodel
2003-2004	Ford	Focus	LX
2007	Ford	Focus	S
2003-2004,2007	Ford	Focus	SE
2007	Ford	Focus	SES
2007	Ford	Focus	ST
2003-2004	Ford	Focus	ZTS
2003-2004	Ford	Focus	ZTW
2003-2006	Ford	Focus	ZX3
2005-2006	Ford	Focus	ZX4
2005-2006	Ford	Focus	ZX4 ST
2003-2006	Ford	Focus	ZX5
2005-2006	Ford	Focus	ZXW