Walker Products Oxygen Sensor P/N:250-241242
Walker Products 250-25103 left oxygen sensor for the 2013 Ford Fusion 4-cylinder 2.5L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. This Walker Products oxygen sensor is a 5-W Wide-Band type made for its specific application and sensor position.
Rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light can mean a failed sensor. A damaged wiring harness or connector can be behind the same signs, so look both over for physical damage with the engine off and find the cause before buying.
This upstream oxygen sensor works as a 2013 Ford Fusion 4-cylinder 2.5L oxygen sensor replacement, and as an oxygen sensor for the 2015 Ford Transit V6 3.7L and the 2015 Ford Transit-150 V6 3.7L, along with other vehicles. If your car is not named here, open the Buyer's Guide tab and check your exact model and engine.
Fit and size
Build and materials
One oxygen sensor. The 2013 Ford Fusion 4-cylinder 2.5L takes one in this position.
Is this the oxygen sensor for a 2013 Ford Fusion 4-cylinder 2.5L?
Yes. Walker Products 250-25103 is an upstream left oxygen sensor listed for the 2013 Ford Fusion 4-cylinder 2.5L (L4-2.5L), and the Fusion takes one.
What type of oxygen sensor is the Walker Products 250-25103?
Walker Products 250-25103 is a 5-W Wide-Band oxygen sensor with an M18 - 1.5 thread.
Can a failing wide-band oxygen sensor turn on the check engine light?
Yes, it can. Rough running, higher fuel use and more exhaust emissions can come with it, and newer vehicles may store a fault code that relates to the sensor.
What does the coating on this Walker oxygen sensor do?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas. The electrodes carry a gas-permeable platinum layer.
Does the Walker Products 250-25103 fit a 2015 Ford Transit V6 3.7L?
Yes. The 2015 Ford Transit V6 3.7L (V6-3.7L) is in the fitment for Walker Products 250-25103, and it takes one sensor in this position.
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.