DENSO Auto Parts Air / Fuel Ratio Sensor P/N:234-5075
DENSO Auto Parts 234-5038 air / fuel ratio sensor for the 2011-2014 Ford F-150 V6 3.7L and other vehicles reads the oxygen content of the exhaust so the engine computer can adjust fuel delivery. It is manufactured and tested to OE standards, and each component is precision-built for exact replacement.
A failing air / fuel ratio sensor can show up as a check engine light, rough running or lower fuel economy, but those signs have other causes too. Before replacing it, look over the wiring and connector with the engine off and cool for chafing, melting or corrosion. This listing is one sensor.
The 2011-2014 Ford F-150 V6 3.7L, the 2011-2015 Ford Explorer V6 3.5L and the 2011-2014 Ford Mustang V6 3.7L all take this direct-fit sensor, as do many other Ford, Lincoln, Mazda and Mercury models. Each of those three takes two. Look up your own year, model and engine in the "Vehicles it fits" section to see where else it goes.
Fit and size
Build and materials
This part cross-references / interchanges with the following part numbers:
Is this the right sensor for a 2011-2015 Ford Explorer V6 3.5L?
Yes. DENSO Auto Parts 234-5038 is a direct-fit air / fuel ratio sensor for the 2011-2015 Ford Explorer V6 3.5L, which takes two. This listing is one sensor.
Is this one of the sensors for the 2011-2014 Ford F-150 V6 3.7L?
Yes. This air / fuel ratio sensor is listed for the 2011-2014 Ford F-150 V6 3.7L, and that truck takes two.
How long is the wiring harness on the DENSO 234-5038, and how many wires does it have?
The harness is 11.57 inches long and has 5 wires, ending in a male connector. The sensor thread diameter is 0.711 inch.
How can I tell if a wide-band air / fuel ratio sensor is going bad?
A check engine light, rough running or lower fuel economy can be signs, though other parts can cause them too. A shop can test the sensor while the engine is running.
Is the DENSO 234-5038 an upstream or downstream sensor?
It is an upstream sensor. DENSO Auto Parts 234-5038 is listed as upstream, upstream left, upstream right, upstream front and upstream rear, depending on the vehicle.
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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.