The coolant sensor needs replacing and I cannot get a part #. I believe the sensor has a 12x1.5 metric thread as opposed to the original clip in style on the O.E.M.
I may have made a mistake having someone put this Dorman thermostat housing in as the O.E.M. had 2 sensors in it, and when I got the truck back from the repair shop it had only one sensor on the housing and no sign of another sensor connection. Dorman Automotive cannot help me with a part # as the say they only sell the housing as a complete unit with the sensor in it. Unfortunate the shop that did the work is not taking responsibility.
Thoughts on this are welcome. Oh, my truck is a 2008 Ranger FX4 with a 4L SOHC.

 

Called the ECT sensor, (engine coolant temp) sensor

2008 just has the one and no Temp Sender like older models(digital dash is why)

SW-6146 was the last part number for it, it replaced the old part number 3F1Z-10884-AA

But these were clip in not threaded

But if new housing need threaded its not a problem just get the older style

This one: Duralast gold coolant temperature sensor su284dg

Comes with connector and splice kit in case the new sensor doesn't match your 2008 connector

 

Thanks so much for the reply.
I will be sure to post a reply as to how things work out.

 

The sensor you have suggested appears to have too large a threaded base to fit the dorman housing which has a M12x 1.25 threaded port

 

Strongly recommend ordering+installing a correct version of the ThermoStatHousing,
upgrading to Aluminum, instead of any NotoriouslyLeakyJunkPlastic Original\AfterMarket\Dorman version,
properly configured for the original single ClipMount TempElement "Sensor\Sender".
If you get a Housing by mistake
with the 2nd ClipMountHole, that can easily be plugged with a PipePlug\Bolt+RTV,
or with a wrong ThermoStat~Radiator HoseBarb+TriFlange, the old Plastic HoseBarb+TriFlange can be used with the new AluminumHousing.