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
2008-2010	BMW	535i	Base
2009-2010	BMW	535i xDrive	Base
2008	BMW	535xi	Base
2011-2012	BMW	740i	Base
2011-2012	BMW	740Li	Base
2008-2010	BMW	X6	xDrive35i
2003-2005	Mercedes-Benz	C240	4Matic
2003-2005	Mercedes-Benz	C320	4Matic
2001-2003	Mercedes-Benz	CLK320	Base
2001-2003	Mercedes-Benz	CLK430	Base
2001-2002	Mercedes-Benz	CLK55 AMG	Base
2005-2010	Mercedes-Benz	SLK55 AMG	Base