Oxygen Sensor for 2003-2008 Mazda 6 & More - Bosch 15426

Bosch 15426 oxygen sensor for the 2003-2005 Mazda 6 4-cylinder 2.3L, the 2006-2008 6 V6 3.0L and other vehicles sends the engine computer a reading of the oxygen left in the exhaust. It is a heated narrow-band sensor for the downstream position.

• Switching-type sensor that gives the ECU air-fuel-ratio feedback for stable combustion control
• Metal housing with an integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Built to withstand exhaust streams up to 1,880°F
• Reaches operating temperature in under 10 seconds for quick closed-loop control

Quick facts

• Part: Bosch 15426 oxygen sensor
• Fits: the 2003-2005 Mazda 6 4-cylinder 2.3L, the 2006-2008 6 V6 3.0L and other vehicles
• Position: Downstream, downstream right, downstream rear
• Material: Metal (housing)
• Condition: New

A check-engine light or poor fuel economy can mean the oxygen sensor is worn, though an exhaust leak or damaged wiring can be behind them too, so find the cause before replacing it.

Fits

Besides the 2003-2005 Mazda 6 4-cylinder 2.3L and the 2006-2008 6 V6 3.0L, this oxygen sensor fits the 2000-2002 Mazda 626 V6 2.5L.

Specifications

In the box

One oxygen sensor with its wiring harness. This listing is one sensor, and the fitment lists a quantity of one for this position. A mounting bracket is not included.

Installation notes

• Direct-fit connectors.
• Conductive anti-seize is pre-applied to the threads.