S657- MillerDrive gear reduction unit. Based on the tried and true, Miller RC- "Persuader". With Hap Miller's approval, we re-engineered it for today's gas engines. Quickly and easily fits both the HIghTork and Dynatron starters. Comes with 3" aluminum cone and a 3" silicone insert to allow for increased gripping surface on large spinners. 4:1 gear reduction for high torque at low RPM. Uses a 6 rip Poly V belt commonly found on most tabletop planers and saws. All machined aluminum and Delrin construction. Starts up to 120cc engines when mounted to our HighTork starter and up to 150cc engines when mounted to our Dynatron starter.

Backed by the Sullivan 2 Year Limited Starter Warranty.

Starter NOT Included.

Sullivan Starters have been designed for decades of dependable service. Ask anyone that you fly with who owns one.