Muffler / Briggs & Stratton/691874 Pack Size:1 BRIGGS & STRATTON 491413, BRIGGS & STRATTON 394170, BRIGGS & STRATTON 394180, BRIGGS & STRATTON 691874, JOHN DEERE AM108033, JOHN DEERE LG691874, JOHN DEERE LG491413, JOHN DEERE AM101193 BYNORM 160-063, ESF 157-064, FOLEY/BELSAW 5979778, FOLEY/PLP 157-064, GREEN MEADOW BM951, LASER L3047, LASER 94075, OREGON 35-022, PRIME LINE 7-03653, RATIO PARTS 3-030, ROTARY 8003, SUNBELT BR-53, SUNBELT B1BR53 BRIGGS & STRATTON 220400, 220700, 221400, 252700, 255400 and 282707; for 10 and 12.5 HP engines Special reduced noise design , Gasket and hardware included , Length: 4 3/4 ", Width: 4 3/8 ", Height: 3 3/8 ", ID: 1 " INLETSilver Streak