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Motorcycle transmission shifter mechanism — Harley-Davidson patent US6308797B1 (2001)

PatentUS6308797B1
TypeUtility patent
Filed2000-07-20
Granted2001-10-30
InventorWilliam J. Hacker
SystemTransmission & clutch

“A motorcycle transmission shifter assembly including a cam drum having at least two pins extending therefrom, and a shift mechanism engageable with the pins. The shift mechanism includes a tooth that is operable to engage a first one of the pins to rotate the drum in a first direction and a stop…”

Full patent textDownload PDFShop transmission & clutch parts

Drawings (8 sheets)

Motorcycle transmission shifter mechanism — sheet 1Motorcycle transmission shifter mechanism — sheet 2Motorcycle transmission shifter mechanism — sheet 3Motorcycle transmission shifter mechanism — sheet 4Motorcycle transmission shifter mechanism — sheet 5Motorcycle transmission shifter mechanism — sheet 6Motorcycle transmission shifter mechanism — sheet 7Motorcycle transmission shifter mechanism — sheet 8

Parts for this system

12-6924
Clutch Release Cover Retaining Ring
$4.86
12-1317
OE Transmission Retaining Ring for Dog Ring
$5.18
14-6909
Ultima Clutch Pulley Cover Oil Seal
$5.40
12-1318
OE Transmission Countershaft End Nut
$6.00

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.