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Crank case having an oil separation wall — Harley-Davidson patent US6394058B2 (2002)

PatentUS6394058B2
TypeUtility patent
Filed2000-12-21
Granted2002-05-28
InventorStefan Fegg
SystemOil system

“The invention relates to an internal-combustion engine, in particular for motorcycles, with a crankshaft ( 24 ) which is arranged in a crankcase ( 10, 14 ) and which is connected by way of connecting rods ( 20, 22 ) to pistons arranged so as to be movable in cylinders ( 16, 18 ), with an oil sump ( 12 )…”

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Drawings (8 sheets)

Crank case having an oil separation wall — sheet 1Crank case having an oil separation wall — sheet 2Crank case having an oil separation wall — sheet 3Crank case having an oil separation wall — sheet 4Crank case having an oil separation wall — sheet 5Crank case having an oil separation wall — sheet 6Crank case having an oil separation wall — sheet 7Crank case having an oil separation wall — sheet 8

Parts for this system

28-0402
ISO Mounting Stud Oil Tank to Battery Tray
$6.80
15-1520
Oil Filter Adapter Seal
$8.48
40-9956
Stock Spin On Oil Filter
$8.48
40-0221
Oil Filter Adapter Screw Kit Allen Type
$8.48

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.