Muffler replaces Briggs & Stratton 294599, 294599S. Fits Briggs & Stratton Models 9, 9B, 9F, 9R, 100200 Series 130200, 131200 Series (5 HP Horizontal), 170400 Series (7 HP Horizontal), 170700, 171700 Series, 190400 to 190799 (8 HP Horizontal), 1954-Series (8 HP Horizontal).