Wiseco Main Bearing 30 x 62 x 16mm Bearing/ MainWiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and reliable service. This Part Fits: Year Make Model Submodel 1974 1975 Arctic Cat Cheetah 440 Base 1975 Arctic Cat Pantera 440 Base 1974 1975 Arctic Cat Panther 440 Base 1983 1987 Ski Doo Alpine Base 1988 1990,1994 Ski Doo Alpine II Base 1991 Ski Doo