Albert L Simi Valley , CA July 17, 2015 Appliance: Maytag Gas Dryer MGDB850WQ0 Maytag Dryer Mgdb850wq0: Dryer was noisy replace tensioner belt 2 felt and 4 roller wheels dryer now is good as new. How to replace Dryer Repair Kit – Oem Belt, 4 Rollers & Idler For 27" Models. Replaced pulley tensioner , belt . Felt and roller wheels 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours