Big-autoparts Impeller for Yamaha 8HP 9.9HP 15HP 20HP Outboard Motors 63V-44352-01-00 63V-44352-01, Hidea 9.9hp 15hp Outboards #10302013-IMP1015 6;Depth /Height/Width :14.22mm; Outer /External impeller overall Diameter: 52.83mm;Internal shaft insert /Hub Diameter : 13.00mm;Net Weight: 14g;Material: Impeller(CR), Shaft Sleeve (Nylon) This aftermarket impeller replace Yamaha outboard motors impellers Part No.:63V-44352-01-00 . 18-3040 PAL Impeller for Yamaha 8HP 9.9HP 15HP 20HP Outboard Motors 63V-44352-01-00 63V-44352-01 , Hidea 9.9hp 15hp Outboards They are similar in design to stock OEM units and require only simple hand tools for installation OE level quality and durability.100% compatible with OE parts.TS16949 certified manufacturer