Front Oxygen Sensor for 1998-2000 Mazda 626 - Walker 350-34244

Walker Products 350-34244 front oxygen sensor for the 1998-1999 Mazda 626 4-cylinder 2.0L and the 1998-2000 626 V6 2.5L measures the oxygen in the exhaust gas to monitor the air-fuel ratio. This Walker Products oxygen sensor is a four-wire, narrow-band unit that gives the ECU the diagnostic feedback it needs.

• Measures the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Electrodes made with a gas-permeable platinum layer
• Monitors exhaust gases to help reduce pollutants
• Helps fine-tune the air-fuel mixture to support fuel economy
• Made for a specific application and position on the engine

Quick facts

• Part: Walker Products 350-34244 oxygen sensor
• Fits: 1998-1999 Mazda 626 4-cylinder 2.0L and 1998-2000 626 V6 2.5L
• Position: Downstream, upstream front
• Condition: New

A failing oxygen sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or turn on the malfunction indicator light. Before you replace the sensor, rule out damage to its wiring harness and connector by looking them over for physical damage, since these signs overlap with other engine problems.

Fits

This direct-fit oxygen sensor fits the 1998-1999 Mazda 626 4-cylinder 2.0L and the 1998-2000 626 V6 2.5L.

Specifications

In the box

One oxygen sensor. Both engines take one.