Standard Steel Rotary Breather Gear Kit with Shims. Fits Big Twin 1948-Early 1977.

Features & Benefits:-

* Direct Standard size replacment for OEM Plastic Breather gear.

* Better dimensional stability than plastic gears, especially at high temperatures.

* High Evacuation.

* Welded-in screen & larger diameter holes, provide improved air flow & oil scavenging from the flywheel cavity.

* Kit Includes Spacing Shims.

Tech Tips:-

* Also available in +.030" oversize for repair jobs where the cases have been damaged.

Proudly Made in the USA by S&S Cycle !