Iron Sportster bill of material
Blog BOM Custom Design
Garage OSARM Repair Smörg

Clutch gear extension

This extension mounts seals that keep oil out of the dry clutch.

37538-56

The clutch extension holds an O-ring and a seal that keeps oil out of the dry clutch.

It is used from 1956 serial number 56KH-1465. It is not used on the electric-start dry-clutch gear 1967-1970, or the wet clutch gear 1971-on.




Sportster_37538-56_Clutch-gear-extension_1956-1969_various.jpg
You press the extension into the early dry clutch gear. The one on the left has its O-ring and seal. The middle extension is a mystery since it is not grooved for an O-ring, it may be for early 1955 K-models.


Sportster_37538-56_Clutch-gear-extension_1956-1969.jpg
A close-up of the clutch gear extension without the seal or O-ring installed.
Bottom of first column This is the end.