Disk clutch — Harley-Davidson patent US1549976A (1925)
PatentUS1549976A
TypeUtility patent
Filed1925-03-21
Granted1925-08-18
InventorWilliam S Harley
SystemTransmission & clutch
“/NVE/v TOR.' MALL/AMS. HARLEY Aug. i8, i925. W. S. HARLEY- DISK CLUTCH Filed Maroh21, 1925 -Miwwill Y m. @C B lll emma Aug. 1s, 1925. UNITED ASTATES :WILLII 8. HARLEY, OIHILWAU-KEE, WI8CONBIN, ASSIGNOB TO HARLEY-DAVIDSON KOTOR C0., y0F IILWAUKEE, WhISCONSIN, A CORPORATION OF WISCONSIN. DISK CLUTCH…”
Drawings (2 sheets)


Parts for this system
12-6924
Clutch Release Cover Retaining Ring
$4.8612-1317
OE Transmission Retaining Ring for Dog Ring
$5.1814-6909
Ultima Clutch Pulley Cover Oil Seal
$5.4012-1318
OE Transmission Countershaft End Nut
$6.00Check 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.