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DENSO Downstream Oxygen Sensor 07P906265F (2344993) – Audi A8 Quattro 6.3L W12 2015-2016

Availability:
Out of stock
SKU 234-4993
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Original price $181.95 - Original price $181.95
Original price
$181.95
$181.95 - $181.95
Current price $181.95
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 DENSO downstream oxygen sensor is designed for the 2015-2016 Audi A8 Quattro with a 6.3L W12 engine. It monitors exhaust oxygen levels to optimize the air-fuel ratio, improving fuel efficiency and reducing emissions. As a premium OEM supplier, DENSO ensures a direct-fit replacement with OE-quality construction and long-lasting performance.

Key Features & Benefits

  • Connector Gender: Male – ensures secure electrical connection.
  • Mounting Type: Threaded – easy screw-in installation.
  • Sensor Type: Heated – reaches operating temperature quickly for accurate readings from cold start.
  • Thread Diameter: 0.708 in – standard size for direct fit.
  • Lifespan: Up to 100,000 miles – typical service life under normal conditions.

Vehicle Fitment

Make Model Years Engine
Audi A8 Quattro 2015–2016 6.3W12

Technical Specifications

Part Number (OE) 07P906265F
Part Number (DENSO) 2344993
Connector Gender Male
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708 in

Installation Notes

Direct plug-and-play replacement; professional installation recommended if unfamiliar with exhaust system components.

About DENSO

DENSO is a globally recognized leader in automotive technology, supplying original equipment parts to major automakers and known for reliability and innovation.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
D4 A8
Make Model Engine Years
Audi A8 Quattro 6.3W12 2015–2016
Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The DENSO 234-4993 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.