Wiseco High Performance Piston Fits Polaris - 438 cc kimpex221439 Why limit yourself when you

Why limit yourself when you could drive a WS4 “Commander”

2 bottom half crankshaft bearing

The silica-based compounds and shark tooth sipes are designed to provide an excellent level of grip on wet and slippery surfaces

Resistant to high temperatures

Low profile and flawless look

Wiseco High Performance Piston Fits Polaris - 438 cc kimpex221439 Why limit yourself when youForged from High Silicon Alumium Alloy for Maximum Strenght and Dependability Wiseco offers a complete line of pistons for both Trail and Racing Applications! Complete Precision Matched and Balanced Piston Kit : Pistons, Rings, Retainers clips, Piston pins, Gasket.