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NTK Oxygen Sensor 25174 (OEM 06E906265E) – Fits Audi 3.2L & 3.0L V6 Models

NTK Oxygen Sensor 25174 (OEM 06E906265E) – Fits Audi 3.2L & 3.0L V6 Models

NTK
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UGC 25174
Épuisé
$126.49 - $126.49
$126.49
$126.49 - $126.49
$126.49
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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This NTK oxygen sensor (part 25174) replaces OEM 06E906265E for select Audi models with 3.2L and 3.0L V6 engines. It provides accurate exhaust oxygen readings to improve engine performance and reduce emissions. Direct fit for Audi A6, A6 Quattro, A4 Quattro, and A4 from 2005-2011.

Key Features & Benefits

  • OEM Replacement: Directly replaces OEM part number 06E906265E.
  • Advanced Technology: NTK sensors deliver precise oxygen measurement.
  • High-Quality Materials: Built to last and withstand extreme conditions.
  • Easy Installation: Compact size and simple design make replacement hassle-free.
  • Improved Engine Performance: Accurate readings help maintain optimal fuel mixture.

Vehicle Fitment

Make Model Years Engine
Audi A6 2010–2011 3.2V6
Audi A6 Quattro 2009 3.0V6
Audi A4 Quattro 2005–2006 3.2V6
Audi A4 2006 3.2V6

Technical Specifications

Part Number 25174
OEM Part Number 06E906265E

Installation Notes

Direct plug-in replacement, no modifications required. Professional installation recommended.

About NTK

NTK (NGK) is a leading manufacturer of automotive sensors, known for high-quality original equipment parts.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 4 applications
Audi
Make Model Engine Years
Audi A6 3.2V6 2010–2011
Audi A6 Quattro 3.0V6 2009–2009
Audi A4 Quattro 3.2V6 2005–2006
Audi A4 3.2V6 2006–2006
Fits 4 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The NTK 25174 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.