NOS Kelsey Hayes Hurst Airheart Rear master Cylinder Harley Chopper Motorcycle had a few of these sitting around Brand new old stock! sorry no cap should be easy to make one seem free, no guarantee may need new oring & seal from 70's have used these on old choppers, drag bikes etc over the years!!!
selling as pictured.
more than welcome to pick up at shop in butler pa & save shipping.
101425 cg