Product review (5 stars): It works in Kenmore 110.66842500
UPDATE July 2017: still working great, no problems. This unit is as good as the OEM unit. Raised rating from 4 to 5 Stars

Rec'd promptly from PA vendor PSW.  Arrived as described in a white box, Napco Made in USA.  Measured resistance across terminals: about 10 ohms, the same as the OEM original part.  Installed in Kenmore 80 Series model 110.66842500.  Mounting holes were  a little tricky to line up.  The OEM unit has one elongated hole which makes it easy to line up.  Not a big deal, got it installed and heats up okay.  I hope it lasts.