The Torqeedo v8/p350 Propeller is made for Cruise models manufactured from 2009 onward with plain shaft and cross pin (serial numbers >5000). It's designed for use at slower speed, lower effectiveness, and greater thrust.• For Cruise models manufactured from 2009 onward with plain shaft and cross pin (serial numbers >5000)• Slower speed, lower effectiveness, greater thrust• Diameter: 11.8" (300 mm) 11.8" diameter | v8/p350 Propeller for Cruise