Product review (2 stars): My cycling thermostat may be bad..
This part lasted a month before blowing out again.  Not sure if this fuse was the root problem or something else, but the ducts and lint filter are clean.  My cycling thermostat may be bad... still working on that.  Anyway, the bigger problem was the part on the left of the picture (with the red-white-red stripes) was somehow "clocked" incorrectly in orientation relative to the bolt holes.  This made it fit improperly on the heater duct.  It was reversed, so to speak, from how it should be oriented (that is reversed from the OEM part).  Anyway, this placed one of the electrical contacts too close to a rib on the duct body, which I decided was too unsafe to install.  I don't want my family getting shocked.  What's more bizarre is that the one in the picture looks correct.  Maybe I just got a weird one that slipped through quality control.  Anyway, I only needed the other part to get the dryer going, even though I know they're supposed to be installed in pairs.  For what it's worth, my dryer is a Kenmore 110.86873100.