Mill Supply carries replacement Mufflers that fit Briggs & Stratton Lawn Mowers as well as other Lawn Mower Parts.

Muffler deflectors, fits 5 hp horizontal series 60000, 80000, 90000, 100,000, 110,000, 120,000.
HORIZ. SERIES 60000,80000, 90000, 100,000,110,000,120,000

Low tone 2 step muffler, 3/4" pipe, fits 5, 7, 8 hp horizontal

Muffler fits, 10 & 11 hp engines includes bolts & heat shield.
REPL.WHEELHORSE 110774,110771 ROPER 101273-M,MURRAY 90330SE

Muffler fits models 9, 9B, 9F, 9R, 100200 series, 130200, 131200 series (5 hp horizontal), 170400 seires (7 hp horizontal), 170700, 171700 series, 190400 to 190799 (8 hp horizontal), , 1954-series (8 hp horizontal). 3/4" pipe. Replaces 291244.

Muffler fits, 9, 9B, 9F, 9F, 100200, 130200, 131200 ( 5 hp horizontal); 170400 series, (7 hp horizontal), 170700, 171700 series,190400 to 190799, (8 hp horizontal), 1954- series (8 hp horizontal). Pipe 3/4".

Muffler fits models N, 5S, 6B-F, 6R, 6B-HS, 6B-H,6, 6S, 6BS, 8, 8F, 8R, 8P, 8B-F, 8B-R, 8B-H, 60100 to 82500 and 92599 series, 92900 series (3.5 hp vertical), 93500 series (3.5 hp vertical), 111200 series (4 hp vertical). For use in tight places. Pipe 1/2", Height 1-21/32", Dia. 2-1/2", Length 1-3/4".

Muffler fits, vertical and horizontal engines series. 100000 and up (5,7 & 8 hp) except 110000 series. Comes complete with bolts, lock and aluminum plate. Low-tone, square, bolt-on type.
FITS 5,7 & 8 HP HORZ. & VERT. LOW TONE

Muffller fits, 110000 series (4 hp verical). Includes bolts, gasket keeper, and spacer. Replaces 394644.
FITS 4 HP VERT.

Muffler fits, 8-16 hp. Also fits Wisconsin & Gravely. Fits many John Deere, Wheel Horse and Power King. 1" pipe, 1" pipe thread, 1-1/4" ID. Replaces 299477, 393232.

Muffler fits, 9-16 hp single cylinder engines. Series 233400-252700, 254400, 280700, 281700, 326400, 402400, 422400. For 1" pipe, 1" pipe thread, 1-1/4" ID.

Muffler fits, MTD 600 riders ( 11 hp). Plated Thread 1-5/16", Pipe Length 4-1/2", ID 1", Overall 7-3/4". Replaces 299477.

Universal Muffler fits 110000 series (4 hp). Pipe
FITS 110000 SERIES 4HP

Muffler fits, 82500 to 92599, 92900 series (3.5 hp vertical), 93500 series. Plated pipe 1/2", Dia. 2-1/2", Height 2-1/2". Replaces 298830.

Muffler fits, low tone muffler for 10 thru 12.5 hp horizontal & vertical engines.
FITS 10-12.5 HP HORZ. & VERT. LOW TONE

Muffler 10000 series 4-8 hp. Bolt-on type with deflector and screw, painted black. Replaces 494585, 297274.
FITS B&S 100900 SERIES 4&8 HP

Muffler fits, 4-1/2 & 5 hp Quantum models. Replaces 490547.
FITS 4.5 & 5 HP QUANTUM

Muffler fits, 12 hp series 252762 muffler. Fits Sears & midsize Exmark, Bunton, Toro. For 1-1/4" pipe OD. Replaces 493963.

Muffler fits, 2-1/2 to 3-1/2 hp. Fits models N, 5S, 6B-F, 6-R, 6B-HS, 6B-H, 6, 6R, 6F, 6S, 6B-S, 8, 8F, 8R, 8P, 8B-F, 8B-R, 8B-H, 60100 (2 hp horizontal): 80299, 80300, 81997, (3 hp horizontal). 4-3/4" length, 1/2" pipe.

Muffler fits, 2-1/2 to 3-1/2 hp. Fits models N, 5S, 6B-F, 6-R, 6B-HS, 6B-H, 6, 6R, 6F, 6S, 6B-S, 8, 8F, 8R, 8P, 8B-F, 8B-R, 8B-H, 60100 (2 hp horizontal): 80299, 80300, 81997, (3 hp horizontal). 4-3/4" length, 1/2" plated pipe.

Muffler replaces (394644) with bolts.
WITH BOLTS

Muffler fits, 1-1/2 to 3-1/2 hp engines. Fits vertical and horizontal engines series 60000 and 80000. Painted, low-tone type. Comes complete with muffler deflector 222238. Pipe 1/2". Replaces 392811.

Muffler fits, 5 hp Vertical Shaft. Replaces 393615.
FITS 5 HP VERT SHAFT
Mower-parts.net carries replacement parts that fit Briggs & Stratton Mowers which most often need to be replaced such as Mufflers.