Yamaha SWS XL4-HP with SDS 4x15 3/8 x22L - 6AX-45B76-10-00. Built for Precision Performance and Smooth, Quiet Cruising. The Yamaha - Sws xl4-hp w/sds 4x15 3/8 x22l - 6AX-45B76-10-00 stainless steel propeller is engineered for power, speed, and vibration-free performance on high-horsepower Yamaha outboards. Featuring Yamaha's exclusive Shift Dampener System (SDS), this prop eliminates prop "clunk" at shift-in, enhancing comfort and control for all-day boating.. Its extra-large four-blade design d