Walker Products Oxygen Sensor P/N:250-241321
Walker Products 250-24718 oxygen sensor for the 2006-2009 Mazda 3 4-cylinder 2.0L or 2.3L measures the oxygen in the exhaust gas. This Walker Products oxygen sensor is made for its downstream fitment position and gives the ECU the diagnostic feedback it needs.
An engine that runs poorly, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light can mean a worn sensor. A damaged wiring harness or connector can be behind the same signs, so look them over for physical damage and find the cause before buying.
It works as a 2006-2009 Mazda 3 oxygen sensor replacement with the L4-2.0L or L4-2.3L engine, and it is a direct fit.
Fit and size
Build and materials
One oxygen sensor. The 2006-2009 Mazda 3 4-cylinder 2.0L or 2.3L takes one at this position.
Product information is for general reference and may contain errors. See our Disclaimer.
Is the Walker Products 250-24718 the right 2008 Mazda 3 oxygen sensor for the 4-cylinder 2.0L or 2.3L engine?
Yes. Walker Products 250-24718 is a downstream oxygen sensor for the 2006-2009 Mazda 3 4-cylinder 2.0L or 2.3L, which includes the 2008 model year.
Is this oxygen sensor narrow-band or wideband?
It is a narrow-band sensor with four wires and an M18 - 1.5 thread.
Does the 250-24718 go upstream or downstream?
It is a downstream oxygen sensor. Every Walker Products part number is made for its specific fitment position.
Can a failed downstream oxygen sensor turn on the malfunction indicator light?
Yes. A failed sensor can light the malfunction indicator light, and newer vehicles may store fault codes for the sensor or its related systems. A shop can read those codes.
What does the coating on the Walker Products 250-24718 protect?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases. The electrodes are made of a gas-permeable platinum layer.
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.