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Reduced friction gerotor — Harley-Davidson patent US6974315B2 (2005)

PatentUS6974315B2
TypeUtility patent
Filed2003-02-18
Granted2005-12-13
InventorJesse Dees
SystemFrame & chassis

“An oil pump for a vehicle engine. The oil pump includes an oil pump housing and a gerotor. The oil pump housing includes a cavity that defines an inside diameter. The gerotor is positioned within the cavity, is rotatable relative to the housing, and defines a thickness and an outside diameter. The…”

Full patent textDownload PDFShop frame & chassis parts

Drawings (5 sheets)

Reduced friction gerotor — sheet 1Reduced friction gerotor — sheet 2Reduced friction gerotor — sheet 3Reduced friction gerotor — sheet 4Reduced friction gerotor — sheet 5

Parts for this system

28-0158
Oil Tank Frame Cover Rubber Grommet
$10.64
37-9264
Chrome Oil Line to Frame Clamp
$10.64
51-5549
Frame Insert Raw Maltese Design
$10.64
51-0858
Frame Tank Dowel Rear
$10.67

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.