Right Oxygen Sensor for 2007-2010 Audi A8 Quattro - Walker 250-25039

Walker Products 250-25039 right oxygen sensor for the 2007-2010 Audi A8 Quattro V8 4.2L measures exhaust-gas oxygen to gauge combustion efficiency. This Walker Products oxygen sensor is made for its specific application and fitment position and returns the diagnostic feedback the ECU requires.

• Electrodes made of a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
• Oxygen readings help fine-tune the air-fuel mixture for fuel economy
• Wide-band, 5-W design that monitors the air-fuel ratio in the exhaust gas

Quick facts

• Part: Walker Products 250-25039 oxygen sensor
• Fits: 2007-2010 Audi A8 Quattro V8 4.2L
• Position: Upstream right
• Condition: New

A failing oxygen sensor can show up as a rough-running engine, higher fuel use or a lit malfunction indicator light. Before you replace the sensor, look over its wiring harness and connector for physical damage, because the same symptoms can start there.

Fits

This oxygen sensor fits the 2007-2010 Audi A8 Quattro V8 4.2L, which takes one in the upstream right position. This listing is a single right-side sensor, and the left side is a separate part.

Specifications