Ez-Steer Ez Steer Auxiliary Bracket Assembly 4" 4in. Typically 2-stroke motors including Mercury Optimax. This kit should not be used on motors with a shaft made of plastic or composite materials. Many current 4-stroke outboards have plastic or composite components. Features of Ez-Steer Ez Steer Auxiliary Bracket Assembly 4" Do not use with outboards that have plastic or composite shafts Assembly Size: 4" Refer to manufacturer recommendations for proper fit Designed for quick and simple application Package Contents: Ez-Steer Ez Steer Auxiliary Bracket Assembly 4" Ez-Steer EZ-50010: Ez Steer Auxiliary Bracket Assembly 4" 4in