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Part number: 25645
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Product Details
NTK Oxygen Sensors 25645 NTK Oxygen (O2) Sensor
Products specifications
Location1 Downstream
Location2 Left
Location2 Right

Oxygen (O2) Sensors are used in modern automobiles to control the fuel and ignition systems to optimize a cars performance in the areas of emissions and fuel economy. Sensors are located before and after the catalytic converter to check on the amount of oxygen in the exhaust. The sensor sends signals to the cars on-board computer, which then can adjust several variables, including air/fuel ratio and timing, in order to bring the engine into the optimum operating range.

Each NTK Oxygen (O2) Sensor is:

  • Extensively Tested During Manufacture to Guarantee Quality and Reliability
  • Supplied With a Factory-Fitted OEM Connector for Easy Installation
  • Precision manufactured with a sensing element incorporating NTKs premier technical ceramics

Oxygen (O2) Sensors should be tested at each tune-up. Failed or worn out oxygen sensors can cause:

  • Failed Emission Tests
  • Increased Fuel Consumption
  • Failed Catalytic Converters
  • Poor Driveability
  • Increased Emissions
Reviews
Add your review
G
Excellent product. Prompt delivery. Will continue use Autoplicity when needed.
M
Found the parts I needed for my vehicle's TPMS system that I could not get anywhere else.  They were a better price than any of the other online stores and got my order shipped out in a timely fashion.
J
I was apprehensiveness at first to make a major purchase with Autoplicity due to their extremely low price and lack of reviews.  I decided to take the chance and I am very glad I did.  I made my order on a Monday morning at 0900 eastern time and my product arrived on Wednesday at 3pm.  The item was exactly as described and the most astonishing part is that my purchase was released from the factory less than 45 days ago.  I was expecting a model that had been sitting on a shelf for the last year and needed to be updated.  That was not the case.  I will definitely order from Autoplicity again in the future.
B
Best price I could find on the net and super fast shipping.
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Fitment
Audi A8
2003 Audi A8 ALL / Base
2002 Audi A8 ALL / Base
2001 Audi A8 ALL / Base
Audi A8 Quattro
2003 Audi A8 Quattro ALL / Base / L
2002 Audi A8 Quattro ALL / Base / L
2001 Audi A8 Quattro ALL / Base / L
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