Bosch Oxygen Sensor P/N:16473
Bosch 18041 oxygen sensor for the 2010 Mazda 3 4-cylinder 2.5L, the 2010-2013 3 4-cylinder 2.0L and other vehicles measures oxygen in the exhaust so the ECU can adjust the air-fuel ratio. This Bosch premium oxygen sensor works in the downstream position.
A check-engine light, poorer fuel economy or a rougher idle can point to a worn sensor, among other possibilities. Before you replace it, rule out a damaged wiring harness or connector and an exhaust leak near the sensor.
This sensor fits the 2010 Mazda 3 4-cylinder 2.5L, the 2010-2013 Mazda 3 4-cylinder 2.0L and the 2012-2013 Mazda 3 Sport 4-cylinder 2.0L. The listing is one sensor for the downstream position, and the fitment calls for a single one.
Fit and size
Build and materials
One oxygen sensor with its wiring harness. A mounting bracket is not included.
Is this the right oxygen sensor for the 2010 Mazda 3 4-cylinder 2.5L?
Yes. Bosch 18041 is a downstream oxygen sensor listed for the 2010 Mazda 3 4-cylinder 2.5L, and it also fits the 2010-2013 Mazda 3 4-cylinder 2.0L.
Is this Bosch O2 sensor upstream or downstream?
Downstream. Bosch 18041 is the downstream sensor, so it does not take the place of an upstream one.
What thread size and hex size does this oxygen sensor have?
This oxygen sensor has an M18 - 1.5 thread and a 22 mm hex. It measures 12.8 in from the sealing surface to the end of the connector.
Does this oxygen sensor come with a wiring harness or a mounting bracket?
The sensor comes with its wiring harness. A mounting bracket is not included.
Do I need to apply anti-seize to the threads of the Bosch 18041?
No. The Bosch 18041 arrives with conductive anti-seize already on the threads, and its connectors are direct-fit.
Published by the manufacturer of this part. Links open in a new tab.
No reviews yet — be the first to review this product.
Write a Review
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.