Oxygen Sensor for 2003-2007 Ford Focus - Walker 250-24678

Walker Products 250-24678 oxygen sensor for the 2003-2007 Ford Focus 4-cylinder 2.3L and the 2005-2007 Focus 4-cylinder 2.0L measures the oxygen in the exhaust gas to show combustion efficiency. It gives the ECU the diagnostic feedback it needs from the upstream position.

• Monitors exhaust gases and reduces pollutants
• Determines the oxygen content of the exhaust gas, monitoring the air-fuel ratio for combustion efficiency
• Measures oxygen levels to fine-tune the air-fuel mixture and help fuel economy
• Electrodes made with a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates

Quick facts

• Part: Walker Products 250-24678 oxygen sensor
• Fits: the 2003-2007 Ford Focus 4-cylinder 2.3L and the 2005-2007 Focus 4-cylinder 2.0L
• Position: Upstream
• Condition: New

A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator light. Before you replace the sensor, rule out physical damage to its wiring harness and connector. The upstream position takes one sensor, and this listing is one sensor.

Fits

This oxygen sensor fits the 2003-2007 Ford Focus 4-cylinder 2.3L and the 2005-2007 Focus 4-cylinder 2.0L.

Specifications