New parts from BBQ-Parts:Jenn Air Gas Grill 720-0336 Replacement Grill Burners,Heat Plates&Cooking Grid(parts # 13361, 91231, 563S2); Burner Dimensions: 15 13/16″ x 4 3/8″ ; Burner Material: Stainless Steel; Grill Grate Dimensions: 19 1/4″ x 12 15/16″ Each, 19 1/4″ x 25 7/8″ Total, Cooking Grid Material: Stainless Steel; Heat Plate Dimensions: 17 3/4″ x 6 3/8″; Heat Shield Material: Porcelain Steel Intensive holes for better flame effect. Cooks better! Lasts longer; Extend the life of your grill; Exact-fit parts;