Product review (5 stars): Genuine Whirlpool part. Make sure you get the thermostat pack too.
If you have a dryer that turns on and spins and spins but only periodically gets hot, or gets hot but shuts off too soon -- basically takes forever to dry your clothers -- and you've already checked your ducts for blockages, purchase this item AND the thermostat kit (http://www.amazon.com/WHIRLPOOL-KENMORE-COMPLETE-THERMOSTAT-CONTAINS/dp/B00IQ9VKV0/ref=sr_1_2?s=hi&ie=UTF8&qid=1395463517&sr=1-2&keywords=3977767+3392519+3387134+279816). It will take an hour or 2 to install everything, but once done, your dryer will be like new.