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.

• Kit comes with gear and spacer
• Require the use of corresponding cam and pinion gear
• Made in the U.S.A.

Fitment Guide

Specs