Yamaha 144mm Replacement Pump Liner (6R7) (SKU: 003-521) GT and throttle response by allowing

and throttle response by allowing the engine to rev faster than with the stock Solas cone

XP-S Bearing Grease is engineered to resist water washout while providing exceptional protection against rust

and better overall watercraft performance

Designed with an oversized opening that fits up to 145mm

Not sure if this impeller is the best fit for your setup

Yamaha 144mm Replacement Pump Liner (6R7) (SKU: 003-521) GT and throttle response by allowingYamaha 144mm Replacement Pump Liner for WSM Housing (6R7) WSM 003 521 The WSM 003 521 Yamaha 144mm Replacement Pump Liner is designed specifically for WSM aluminum jet pump housings used in Yamaha personal watercraft. This replaceable wear ring liner provides a cost effective solution for restoring proper impeller clearance and pump efficiency without replacing the entire pump housing. Over time, pump liners can become damaged from rocks, sand,