Details

• Brand:

  

  

• SKU:

  BC3Z-9D378-H

• Other Names:

  Nox Sensor, Temp Sensor, Oxygen Sensor, Sensor Nox Trap Temperature

• Description:

  This genuine Ford sensor is the exhaust aftertreatment NOx trap temperature sensor used on the 6.7L Power Stroke diesel emissions system. Ford catalogs it under base 9D378 as a Temp Sensor, also listed as Sensor NOx Trap Temperature, and it monitors exhaust gas conditions around the EGR valve and cooler and the NOx storage catalyst so the powertrain module can manage emissions and regeneration. It fits 2011 and 2012 Ford F-250 F-350 and F-450 Super Duty trucks with the 6.7L diesel, with an application build date from 4/13/11, and it supersedes the earlier BC3Z-9D378-F and BC3Z-9D378-G versions. When this sensor drifts or fails, drivers typically see a check engine light, diesel emissions or exhaust fluid warnings, fault codes for exhaust temperature or NOx sensor circuit, reduced power or limp mode, and in some cases a failed regeneration cycle that leaves the truck derated. Because the sensor threads into the hot exhaust stream, the tip and harness endure extreme heat and eventually degrade, giving implausible readings that the module flags. Installing the correct genuine part restores accurate exhaust temperature and NOx feedback so the aftertreatment system regenerates and meters properly. Note the position keying within this family: verify your truck's callout against the catalog since related suffixes serve front versus rear locations in the NOx trap and EGR circuit. Use anti-seize sparingly on the threads only where Ford specifies, route the harness away from moving and hot parts, and clear codes after installation so the module relearns.

• Replaces:

  bc3z9d378f, bc3z9d378g

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