NGK Audi A4 2009-2005 Direct Fit 5-Wire Wideband A/F Sensor - 24339

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
2005-2008	Audi	A4	Base
2007-2009	Audi	A4	Cabriolet
2005-2008	Audi	A4 Quattro	Avant
2005-2008	Audi	A4 Quattro	Base
2007-2009	Audi	A4 Quattro	Cabriolet
2009-2012	Porsche	911	Carrera
2009-2012	Porsche	911	Carrera 4
2012	Porsche	911	Carrera 4 GTS
2009-2012	Porsche	911	Carrera 4S
2011-2012	Porsche	911	Carrera GTS
2009-2012	Porsche	911	Carrera S
2010-2011	Porsche	911	GT3
2011	Porsche	911	GT3 RS
2011	Porsche	911	GT3 RS 4.0
2011	Porsche	911	Speedster
2009-2012	Porsche	911	Targa 4
2009-2012	Porsche	911	Targa 4S
2009-2012	Porsche	Boxster	Base
2009-2012	Porsche	Boxster	S
2012	Porsche	Boxster	S Black Edition
2009	Porsche	Boxster	S Porsche Design 2
2011-2012	Porsche	Boxster	Spyder
2008-2010,2013-2014	Porsche	Cayenne	GTS
2008-2014	Porsche	Cayenne	S
2010	Porsche	Cayenne	S Transsyberia
2009-2012	Porsche	Cayman	Base
2012	Porsche	Cayman	R
2009-2012	Porsche	Cayman	S
2014-2016	Porsche	Panamera	4S
2014-2016	Porsche	Panamera	4S Executive
2014-2016	Porsche	Panamera	S