Muffler For Briggs and Stratton # 491413, 691874, 35-022Replaces Part Numbers Briggs and Stratton 491413, 691874, 35-022OEM Numbers : Muffler replaces Briggs & Stratton 491413. Low-tone muffler for 10 thru 12-1/2 hp Horiz. & Vert. engines. Type : Muffler