NTK 24397 air / fuel ratio sensor for the 2011-2014 Ford F-150 V6 3.7L and other vehicles tells the ECU how rich or lean the engine runs. This NTK air fuel ratio sensor is a 5-wire wideband unit, so its linear output lets the ECU make continuous adjustments to the air-fuel mixture.
A check engine light, rough running or poor fuel economy can mean this sensor is failing. A wiring fault, an exhaust leak or a vacuum leak can sit behind the same symptoms, so track down the cause before buying a new sensor.
Listed for a wide range of Ford and Lincoln models, including the 2012-2015 Ford Explorer V6 3.5L and the 2012-2014 Ford Mustang V6 3.7L, in the upstream left and upstream right positions. This listing is a single sensor, with a quantity of one in the fitment. If your car is not named here, look up its year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
Interchange: 234-5038
18088 · BL3Z9F472A
This part cross-references / interchanges with the following part numbers:
Does the NTK 24397 fit a 2011-2014 Ford F-150 V6 3.7L?
Yes. NTK 24397 is listed for the 2011-2014 Ford F-150 V6 3.7L in the upstream left and upstream right positions. For other years or engines, use the "Vehicles it fits" section.
How is this 5-wire wideband sensor different from a switching oxygen sensor?
A switching sensor only reports rich or lean. This wideband sensor gives a linear signal, so the ECU can see exactly how rich or lean the engine is running.
What hex size and thread does this air / fuel ratio sensor have?
The hex size is 7/8" (22mm) and the thread is M18 - 1.5. The sensor is heated.
How is the ceramic element protected from contamination?
A 3-stage contaminant-resistant plasma jet and deposit trap overcoat covers the element to protect against element poisoning.
Is BL3Z9F472A the same as this NTK sensor?
Yes. BL3Z9F472A is one of the numbers NTK 24397 replaces, so the two are listed as interchangeable.
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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.
