Product review (4 stars): Can't have one without the other....
I wrote a review about the (LGElectronics 6931EL3001F Dryer Thermostat Assembly) that you have to have with the fuse.  This worked well with our dryer and haven't had any issues with it as yet and months have passed since we replaced it.  However, I will say, if you are buying this fuse for your dryer because it's dead, my advice would be to check the thermostat as well because that might need to be replaced as well.