17-000 K-Tech, replacement o-ring set

Keeping an old Knucklehead dry can be a full-time job, but these K-Tech replacement o-rings make it a lot easier. This set is specifically designed for use with Kustom Tech right-side brass rocker nuts on 1936 to 1947 Knucklehead engines. These particular nuts are machined with a special groove to accept these o-rings, creating a much better seal than traditional methods to help prevent those annoying oil leaks from the top end. They are sold as a set of four, giving you enough to seal up your rocker boxes properly. It is a small but essential part for anyone running Kustom Tech brass hardware on a vintage EL or FL.