Whirlpool Dryer Model WED8300SW2 Idler Pulley

Dryer idler pulley. The idler pulley puts tension on the drive belt. If the idler pulley fails to put the proper amount of tension on the belt, the dryer will not spin

OEM Part - Manufacturer #279640

The dryer belt wears out over time. Consider replacing the belt while the dryer is apart.