Hub Kit #621 Hub System Technology for Big engines with Big prop shafts. For Mercury Applications with 1.25” Prop Shafts. 150-400+hp with 4.75-5.44” Gearcases running Stainless Steel Props. A solution for stainless steel props but works great with aluminum props too. *For specific applications/usage see Turning Point Prop Wizard.
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65Warnings.ca.gov