NGK 22118 O2 sensor for the 2003-2008 Mazda 6 V6 3.0L and other vehicles gives the engine computer closed-loop feedback on exhaust oxygen. It helps control the air-fuel ratio and alerts the OBDII system to possible fuel delivery or catalytic converter efficiency problems.
A worn sensor can show up as a check engine light, rough running or lower fuel economy. Wiring damage or an exhaust leak can set off similar warnings, so with the engine off and cool, look over the harness and connector for damage first.
This direct-fit sensor fits the 2003-2008 Mazda 6 V6 3.0L and the 2000-2002 Mazda 626 V6 2.5L. This listing is one sensor, and the 2003-2008 Mazda 6 V6 3.0L takes one.
Fit and size
Build and materials
Does this sensor fit the 2003-2008 Mazda 6 V6 3.0L?
Yes, NGK 22118 is a direct-fit replacement for the 2003-2008 Mazda 6 V6 3.0L, and that engine takes one sensor.
Is NGK 22118 the right oxygen sensor for the 2000-2002 Mazda 626 V6 2.5L?
Yes, NGK 22118 is listed for the 2000-2002 Mazda 626 V6 2.5L, and that engine takes one sensor.
What hex size does the NGK 22118 take?
The NGK 22118 has a 7/8 in (22 mm) hex. It is a heated sensor of the switching zirconia type.
What signs can show a heated zirconia O2 sensor is wearing out?
A check engine light, rough running or lower fuel economy can mean a worn sensor. A shop can test it while the engine is running.
Does this NGK O2 sensor come with its own connectors and hardware?
Yes, the sensor is equipped with water-resistant connectors and harness accessory hardware made for easy installation.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.