William W Chula Vista , CA October 20, 2020 Appliance: Whirlpool Dryer WGD95HEXL0 Whirlpool Dryer Wgd95hexl0: Broken idler pulley wheel. How to replace Whirlpool Drive Belt. Replaced the idler pulley assembly (it's less expensive to buy the entire assembly than just the pulley wheel). The belt was pretty hammered, so I replaced it too. Since I had the drum out, I replaced both felt seals as well. Runs like a champ now. Do-It-Yourself Rating: Repair Time Estimate: 2+ hours