Transmission Mainshaft Oil Seal for Harley-Davidson 4 Speed, Big Twins (1941-79)
This is a Transmission Mainshaft Oil Seal for Vintage Harley-Davidson Big Twins (4-Speed)
Product Specs: Double lip Double shielded 4-speed transmission Compatible with 1941-early 1979 4-speed Big Twins (Flathead, Knucklehead, Panhead, Shovelhead) New part, but has been in storage for numerous years