Breather gear kit for 1948 - early 1977 big twin. Standard size replacement for use in cases where original breather gear hole has not been modified. Kit comes with standard size breather gear and one of each of the following shims: .100", .110", .120", .130", .140", .150", .160" and .170" to properly set breather gear spacing.
XMAS BREAK LAST SHIP DATE 18 DECEMBER
📦All new orders placed after that date will be shipped once we return on the 5th January 2026
Add to cartSold out
Choosing a selection results in a full page refresh.