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
1999-2002	Subaru	Forester	Base
1999-2002	Subaru	Forester	L
1999-2002	Subaru	Forester	S
2003-2004	Subaru	Forester	X
2003-2004	Subaru	Forester	XS
1999	Subaru	Impreza	L
1999,2002-2004	Subaru	Impreza	Outback
1999-2004	Subaru	Impreza	RS
2002-2004	Subaru	Impreza	TS