NTK 25725, Downstream oxygen sensor

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NTK 25725 | Downstream oxygen sensor | Audi A3/A6/S6/S8/RS4/RS7, VW Eos/Passat/R32various models(see description)
NTK is the world's leading supplier of OEM oxygen sensors, supplying more vehicle makers with oxygen sensors than any other manufacturer. NTK oxygen sensors are individually tested to ensure the highest level of quality and reliability.Everyone agrees the amount of pollution produced by motor vehicles should be reduced. In order to encourage reduced emissions, governments have progressively introduced tougher exhaust gas emission legislation. Since 1981 the majority of cars and light trucks built throughout the world have been equipped with oxygen sensors. NTK oxygen sensors continuously detect the composition of exhaust gases. As the output from the sensor changes the ECU instructs the fuel mixing system to alter the mixture. This ensures the air-fuel mixture is always correct and promotes catalyst efficiency.A new NTK oxygen sensor can help lower emissions, improve fuel mileage, improve engine efficiency and extend catalyst life.NTK oxygen sensors are OEM-approved and are built with the highest quality materials and craftsmanship to ensure superior quality for your automobile. NTK oxygen sensors meet or exceed original equipment specifications and are equipped with waterproof factory-fitted connectors to ensure a perfect fit every time.Rely on the world leader in sensor technology – NTK. NTK 24309 Fitment AUDI Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes 2006 - 2009 A3 QUATTRO ALL V6 3.2 ALL ALL ALL Position: Downstream Left 2007 - 2011 A6 QUATTRO ALL V8 4.2 ALL ALL ALL Position: Downstream Right 2011 - 2011 A8 QUATTRO ALL V8 4.2 ALL ALL ALL Position: Downstream; Cyls. 5-8 2012 - 2014 A8 QUATTRO ALL W12 6.3 ALL ALL ALL Position: Downstream; Cyls. 7-9 2013 - 2014 A8 QUATTRO ALL V8 4.0 ALL ALL ALL Position: Downstream; Cyls. 5-8 2007 - 2008 RS4 ALL V8 4.2 ALL ALL ALL Position: Downstream; Cyls. 5-8 2014 - 2014 RS7 ALL V8 4.0 ALL ALL ALL Position: Downstream; Cyls. 5-8 2013 - 2014 S6 ALL V8 4.0 ALL ALL ALL Position: Downstream; Cyls. 5-8 2013 - 2014 S7 ALL V8 4.0 ALL ALL ALL Position: Downstream; Cyls. 5-8 2013 - 2014 S8 ALL V8 4.0 ALL ALL ALL Position: Downstream; Cyls. 5-8 VOLKSWAGEN Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes 2007 - 2008 EOS ALL V6 3.2 ALL ALL ALL Position: Downstream Left 2006 - 2007 PASSAT ALL V6 3.6 ALL ALL ALL Position: Downstream Left 2008 - 2008 R32 ALL V6 3.2 ALL ALL ALL Position: Downstream Left