Product review (1 stars): I am thankful that it failed in time to return it as defective, I guess.
The thermal cutoff fuse blew less than a month after I installed this kit.  Either the fuse blew far lower than its indicated 352F, or the high limit thermostat failed to shut off the heating element far above its indicated 248F.  I've double checked my heating element and box for shorts, both visually and with a voltmeter - no problems.  I'm processing a return for this nonsense and ordering an OEM part like I should have in the first place.