Wiseco Bottom End Gasket Kit Polaris 500cc GasketWiseco's bottom end rebuild kits help save time and money for your dirt bike, ATV, or UTV bottom end rebuild. Available for many popular applications, these kits contain a crankshaft assembly, main bearings, and a bottom end gasket kit, all in one box under one part number. This Part Fits: Year Make Model Submodel 1989 1992,1997 2000 Polaris 500 Base 1995 1996 Polaris 500 Carb Base 1996 Polaris 500 Carb RMK Base 1996 Polaris 500 Carb SKS Base 1999