high-quality bearings
delivering unparalleled power and acceleration
Lasts longer than chromoly
More torque creates a stronger seal between the cylinder and the head
Polaris RZR 170 RZR170 Top End Rebuild Kit Valves Wiseco Piston & Namura Gasket TRX700XX high-quality bearings40143M06100,AU 09213I,AU 09213E,40143M06200,P400427600020 0455058, 0454523, 0454522, 0452390, 0452388, 0454515, 0454516, 0452387, 0452389, 0454514 ,NA 50007T, 0454459, 0454365, 0453451, 0452459, 0454363, 0454640, 0452808, 0454454, 0453672, 0452390, 0452417, 43977, C3596, C3596 EST, 191070359157 Polaris RZR 170 Top End Cylinder Head Rebuild Kit, Valves, Piston, & Gaskets! This complete cylinder head rebuild kit has everything you need to refresh your