Oxygen Sensor for 1993-1995 BMW 525i & More - Walker 250-24021

Walker Products 250-24021 oxygen sensor for the 1993-1995 BMW 525i 6-cylinder 2.5L and other vehicles measures the oxygen in the exhaust gas. It is a narrow-band sensor for the upstream position, and the ECU reads its signal.

• Monitors exhaust gases to help reduce pollutants
• Determines the oxygen content of the exhaust gas, monitoring the air-fuel ratio for combustion efficiency
• Electrodes made of a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Four-wire design made for a specific application and fitment position

Quick facts

• Part: Walker Products 250-24021 oxygen sensor
• Fits: the 1993-1995 BMW 525i 6-cylinder 2.5L and other vehicles
• Position: Upstream
• Condition: New

A failing oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. These signs alone do not prove the sensor is at fault, since a damaged wiring harness or connector can produce them too.

Fits

This sensor fits the 1993-1995 BMW 525i 6-cylinder 2.5L and the 1993 BMW 525iT 6-cylinder 2.5L. The listing is one sensor, and these BMWs need one in the upstream position.

Specifications