NGK Audi A4 2010-2009 Direct Fit Oxygen 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. 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 2009-2010 Audi A4 Base 2009-2010 Audi A4 Quattro Avant 2009-2010 Audi A4 Quattro Base 2010-2011 Audi A5 Cabriolet 2010-2011 Audi A5 Quattro Base 2010-2011 Audi A5 Quattro Cabriolet 2007-2011 Audi A6 Quattro Bas