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

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.

Fitment

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

…and 2 more applications.

Specifications

Manufacturer part number

24339

UPC

1008729524339

Shipping weight & size

4.00 lb, 12 × 8 × 6 in

Notices

• WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
• Special order item — ships direct from the manufacturer; extended lead times may apply.