Looking for aftermarket parts to modify or upgrade your Audi A4 with oxygen sensors? At Tunersports.com we carry a huge selection of the top name brand performance oxygen sensor parts and accessories.

OUT OF STOCK 24308NTK 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 oxyge... NGK Audi A6 2009-2006 Direct Fit 5-Wire Wideband A/F Sensor 2006-2008 Audi A4 Base $189.88 |
OUT OF STOCK 24317NTK 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 oxyge... NGK Audi A4 2006-2001 Direct Fit 5-Wire Wideband A/F Sensor 2001-2005 Audi A4 Base 2003-2006 Audi A4 Cabriolet $151.34 |
OUT OF STOCK 24318NTK 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 oxyge... NGK Audi A8 Quattro 2006-2004 Direct Fit 5-Wire Wideband A/F Sensor 2001-2005 Audi A4 Base 2003-2006 Audi A4 Cabriolet $155.86 |
OUT OF STOCK 24321NTK 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 oxyge... NGK Audi TT 2006-2001 Direct Fit 5-Wire Wideband A/F Sensor 2002-2005 Audi A4 Base 2003-2005 Audi A4 Cabriolet $143.48 |
IN STOCK - LOW 24328NTK 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 oxyge... NGK Audi A3 2013-2010 Direct Fit 5-Wire Wideband A/F Sensor 2009-2014 Audi A4 Base 2015-2015 Audi A4 Prestige 2015-2016 Audi A4 Premium / Premium Plus $123.18 |
OUT OF STOCK 24339NTK 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 oxyge... NGK Audi A4 2009-2005 Direct Fit 5-Wire Wideband A/F Sensor 2005-2008 Audi A4 Base 2007-2009 Audi A4 Cabriolet $154.36 |
OUT OF STOCK 24342NTK 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 oxyge... NGK Audi A3 2013-2010 Direct Fit 5-Wire Wideband A/F Sensor 2005-2008 Audi A4 Base 2007-2009 Audi A4 Cabriolet $156.75 |
OUT OF STOCK 27050NTK 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 oxyge... NGK OE Type 5-Wire Wideband A/F Sensor 2017-2018 Audi A4 Premium / Premium Plus / Prestige $145.19 |

OUT OF STOCK 25079NTK 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 fee... NGK Audi A6 2009-2006 Direct Fit Oxygen Sensor 2006-2008 Audi A4 Base $131.34 |
OUT OF STOCK 25083NTK 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 fee... NGK Audi A6 2009-2006 Direct Fit Oxygen Sensor 2006-2008 Audi A4 Base $121.10 |
OUT OF STOCK 25173NTK 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 fee... NGK Audi A6 2011-2010 Direct Fit Oxygen Sensor 2006-2006 Audi A4 Base $161.02 |
OUT OF STOCK 25174NTK 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 fee... NGK Audi A6 2011-2010 Direct Fit Oxygen Sensor 2006-2006 Audi A4 Base $176.04 |
OUT OF STOCK 25550NTK 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 fee... NGK Audi A4 1999-1997 Direct Fit Oxygen Sensor 1997-1999 Audi A4 Base 1998-1998 Audi A4 Avant $103.95 |
OUT OF STOCK 25552NTK 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 fee... NGK Audi A4 1999-1996 Direct Fit Oxygen Sensor 1996-1999 Audi A4 Base 1998-1998 Audi A4 Avant $120.62 |
OUT OF STOCK 25589NTK 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 fee... NGK Audi A4 2001-2000 Direct Fit Oxygen Sensor 2000-2001 Audi A4 Base $139.69 |
OUT OF STOCK 25597NTK 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 fee... NGK Audi A4 2001-2000 Direct Fit Oxygen Sensor 2000-2001 Audi A4 Base $139.69 |
OUT OF STOCK 25604NTK 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 fee... NGK Audi TT 2001-2000 Direct Fit Oxygen Sensor 2005-2005 Audi A4 Base / Cabriolet $116.79 |
OUT OF STOCK 25605NTK 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 fee... NGK Audi A4 2006-2000 Direct Fit Oxygen Sensor 2000-2005 Audi A4 Base 2003-2006 Audi A4 Cabriolet $119.59 |
OUT OF STOCK 25656NTK 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 fee... NGK Audi A4 2009-2005 Direct Fit Oxygen Sensor 2005-2008 Audi A4 Base 2007-2009 Audi A4 Cabriolet $134.18 |
OUT OF STOCK 25657NTK 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 fee... NGK Audi A3 2013-2011 Direct Fit Oxygen Sensor 2011-2014 Audi A4 Base 2015-2015 Audi A4 Prestige 2015-2016 Audi A4 Premium / Premium Plus $122.73 |
OUT OF STOCK 25705NTK 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 fee... NGK Volkswagen Touareg 2007-2004 Direct Fit Oxygen Sensor 2000-2000 Audi A4 Base $124.32 |
OUT OF STOCK 25729NTK 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 fee... NGK Audi A4 2010-2009 Direct Fit Oxygen Sensor 2009-2010 Audi A4 Base $119.82 |