Oxygen Sensor for 2000-2003 Audi A8 Quattro & More - Walker 250-24393

Walker Products 250-24393 oxygen sensor for the 2000-2003 Audi A8 Quattro V8 4.2L and other vehicles measures the oxygen content of the exhaust gas. It is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.

• Tracks the air-fuel ratio so the mixture can be fine-tuned for combustion efficiency
• Electrodes made of a gas-permeable platinum layer
• Monitors exhaust gases to help reduce pollutants
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Narrow-band sensor with 4 wires

Quick facts

• Part: Walker Products 250-24393 oxygen sensor
• Fits: 2000-2003 Audi A8 Quattro V8 4.2L and other vehicles
• Position: Upstream left, upstream right
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit check engine light. A damaged wiring harness or connector, or another engine-management fault, can be behind these signs too, so find the cause before buying a sensor.

Fits

It fits the 2000-2003 Audi A8 Quattro V8 4.2L and is also an oxygen sensor for the 2001-2003 Audi S8 V8 4.2L. This listing is one sensor; the 2000-2003 Audi A8 Quattro V8 4.2L takes one.

Specifications