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. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband 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
2005-2007	Audi	A8 Quattro	L
2004-2005	Audi	Allroad Quattro	Base
2004-2008	Audi	S4	Avant
2004-2008	Audi	S4	Base
2004-2009	Audi	S4	Cabriolet
2003-2006	Audi	TT Quattro	Base
2004-2005	BMW	545i	Base
2004-2005	BMW	645Ci	Base
2002	BMW	745i	Base
2002	BMW	745Li	Base
2004-2006	BMW	X5	4.4i
2004-2006	BMW	X5	4.8is
2005-2008	Buick	LaCrosse	CXS
2006	Buick	Rendezvous	CX
2004,2006	Buick	Rendezvous	CXL
2005	Buick	Rendezvous	CXL Plus
2004-2005	Buick	Rendezvous	Ultra
2005-2006	Volkswagen	Touareg	Base
2004	Volkswagen	Touareg	V6