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Muffler for a motorcycle — Harley-Davidson patent US7424931B2 (2008)

PatentUS7424931B2
TypeUtility patent
Filed2005-12-29
Granted2008-09-16
InventorStacy L. Smith
SystemExhaust

“A muffler for a motorcycle, the muffler including an outer tube and an inner tube disposed substantially within the outer tube. The inner tube includes a first end adapted to receive the exhaust gases from the engine, a second end opposite the first end adapted to release the exhaust gases to the…”

Full patent textDownload PDFShop exhaust parts

Drawings (7 sheets)

Muffler for a motorcycle — sheet 1Muffler for a motorcycle — sheet 2Muffler for a motorcycle — sheet 3Muffler for a motorcycle — sheet 4Muffler for a motorcycle — sheet 5Muffler for a motorcycle — sheet 6Muffler for a motorcycle — sheet 7

Parts for this system

31-0783
Angle Exhaust Bracket Chrome
$6.32
15-8286
Ultima M8 Tapered Exhaust Gasket
$6.35
41-0125
Exhaust Port Nuts Zinc
$8.51
12-1187
Exhaust Port Nuts Chrome
$8.51

Check fitment first — add your bike and we flag what fits.

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US9309798B2
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Exhaust shield assembly — patent drawing
US10974783B2
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2021 · Exhaust

Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.