Yamaha 144mm Replacement Pump Liner (6R8) (SKU:003-521-1) 13/18 and rider control

and rider control

Tell us your engine modifications

and performance-oriented setups

Compatible with 2UP & 3UP Models

and better overall performance

Yamaha 144mm Replacement Pump Liner (6R8) (SKU:003-521-1) 13/18 and rider controlYamaha 144mm Replacement Pump Liner (6R8) WSM 003 521 1 The WSM 003 521 1 Yamaha 144mm Replacement Pump Liner is a direct replacement wear ring liner designed for WSM aluminum jet pump housings utilizing the Yamaha 6R8 pump system. This replaceable liner restores proper impeller clearance and pump efficiency without the expense of replacing the entire pump housing. Over time, the pump liner can become worn or damaged from rocks, sand, debris,