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
2004-2005	BMW	545i	Base
2004-2005	BMW	645Ci	Base
2002-2005	BMW	745i	Base
2002-2005	BMW	745Li	Base
2004-2006	BMW	760i	Base
2003-2006	BMW	760Li	Base
2007-2008	BMW	Alpina B7	Base
2006-2010	BMW	M5	Base
2006-2010	BMW	M6	Base
2004-2006	BMW	X5	4.4i
2004-2006	BMW	X5	4.8is
2004-2007	Rolls-Royce	Phantom	Base
2006-2007	Rolls-Royce	Phantom	EWB