Muffler For Briggs and Stratton # 391313 692304 35-014Replaces Part Numbers Briggs and Stratton 391313 692304 35-014OEM Numbers : Muffler replaces Briggs & Stratton 391313. Low-tone, square, bolt-on type. Fits vertical and horizontal engine series. 100000 and up (5, 7 & 8 hp) except 110000 series. Comes complete with bolts, lock and aluminum plate. Type : Muffler