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Breather assembly for an internal combustion engine — Harley-Davidson patent US6065457A (2000)

PatentUS6065457A
TypeUtility patent
Filed1998-07-24
Granted2000-05-23
InventorMark A. Hoffmann
SystemEngine

“A rocker support assembly for a motorcycle internal combustion engine. The assembly comprises a pair of rockers positioned in spaced relation from each other, a breather housing, and a pressure-responsive member. The housing at least partially defines an inlet aperture, an outlet aperture, and a…”

Full patent textDownload PDFShop engine parts

Drawings (3 sheets)

Breather assembly for an internal combustion engine — sheet 1Breather assembly for an internal combustion engine — sheet 2Breather assembly for an internal combustion engine — sheet 3

Parts for this system

32-0064
Magneto to Crankcase Oil Seal Ring and Gasket Kit
$6.35
14-0555
Rear Caliper Piston O-Ring
$10.64
15-1380
Rear Master Cylinder Gasket Kit
$10.64
23-0825
Handlebar Master Cylinder Piston Cup
$10.64

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

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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.