Oxygen Sensor for 2006-2008 Mazda 6 - Bosch 15374

Bosch 15374 oxygen sensor for the 2006-2008 Mazda 6 4-cylinder 2.3L is a wide-band Bosch O2 sensor that reports the air-fuel ratio to the ECU. This is the upstream sensor, and the ECU uses its signal to adjust fueling.

• Wide-band design measures the air-fuel ratio continuously across the full lambda range
• Reaches operating temperature in under 7 seconds for quick closed-loop control
• Integrated heater element and TSP coating resist vibration, corrosion and contamination
• Withstands exhaust gas up to 1,880°F
• Ceramic construction that holds up through rapid load changes and harsh thermal cycles

Quick facts

• Part: Bosch 15374 oxygen sensor
• Fits: 2006-2008 Mazda 6 4-cylinder 2.3L
• Position: Upstream
• Material: Metal (housing)
• Condition: New

A worn oxygen sensor can show up as a check engine light, poorer fuel economy or a rough idle. Before you replace the sensor, rule out a damaged connector or wiring and an exhaust leak near it, since those can send the ECU a similar signal. If this sensor is the cause, this unit replaces it.

Fits

It fits the 2006-2008 Mazda 6 4-cylinder 2.3L, which takes one upstream sensor. This listing is a single sensor.

Specifications

In the box

One oxygen sensor with its wiring harness.

Installation notes

• Conductive anti-seize is pre-applied to the threads.
• Direct-fit connectors are made for quick installation.