Susan S Walton , KY November 30, 2015 Appliance: KitchenAid Cooktop KECC508GBL3 Kitchenaid Cooktop Kecc508gbl3: Cooktop glass needed to be replaced. How to replace Cooktop (Black). Removed existing glass top, and replaced with new one 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes