Rear Oxygen Sensor for 2003-2008 Mazda 6 - Bosch 15431

Bosch 15431 rear oxygen sensor for the 2003-2008 Mazda 6 V6 3.0L reads the oxygen in the exhaust and reports the air-fuel ratio to the ECU. This Bosch O2 sensor helps the ECU hold stable combustion and keep emissions down across a range of operating conditions.

• Narrow-band, heated switching-type sensor
• Metal housing, integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Withstands exhaust gas temperatures up to 1,880°F
• Reaches operating temperature in under 10 seconds for quick closed-loop control
• Direct-fit connectors and pre-applied conductive anti-seize on the threads

Quick facts

• Part: Bosch 15431 oxygen sensor
• Fits: 2003-2008 Mazda 6 V6 3.0L
• Position: Upstream rear
• Material: Metal
• Condition: New

A check engine light, poor fuel economy or a rough idle can mean this oxygen sensor is worn, though an exhaust leak or a wiring fault can be behind the same signs, so find out which before you replace it.

Fits

This sensor is a direct-fit replacement for the 2003-2008 Mazda 6 V6 3.0L in the upstream rear position.

Specifications

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included. This listing is one sensor, and the 2003-2008 Mazda 6 V6 3.0L takes one.