Oxygen Sensor for 2005-2007 Audi A8 Quattro - Walker 250-25021

Walker Products 250-25021 oxygen sensor for the 2005-2007 Audi A8 Quattro W12 6.0L measures the oxygen content of the exhaust gas. This wide-band upstream sensor monitors the air-fuel ratio for combustion efficiency.

• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Oxygen readings help fine-tune the air-fuel mixture and support fuel economy
• Electrodes coated with a gas-permeable platinum layer
• Exhaust gas monitoring helps reduce pollutants
• Made for its specific application and position to give the ECU the diagnostic feedback it expects

Quick facts

• Part: Walker Products 250-25021 oxygen sensor
• Fits: 2005-2007 Audi A8 Quattro W12 6.0L
• Position: Upstream
• Condition: New

An engine that runs poorly, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light are signs an oxygen sensor may be failing. A damaged wiring harness or connector can produce these symptoms as well, so look both over for physical damage and settle the cause before you buy a sensor.

Fits

This Walker Products oxygen sensor fits the 2005-2007 Audi A8 Quattro W12 6.0L.

Specifications

In the box

This listing is one oxygen sensor, and the fitment lists one for the 2005-2007 Audi A8 Quattro W12 6.0L.