Solas Stainless Steel 12-Vane Pump Stator YQS-SV-144 Constructed of stainless steel and 6061 T-6 billet aluminum, unlike the stock pumps, which are made from weaker cast aluminum, plastic and brass This performance pump is a direct replacement for the inefficient OEM aluminum 6-vane stator section Pump spacer to use stator with OEM Yamaha reduction nozzle is available separately Requires the use of a large hub Magnum impeller (12/18 pitch) or (13/19 pitch); sold separately ses OEM Yamaha bearings and seals