Wiseco Top End Bearing 16 x 21 x 19.5mm BearingAs the leading manufacturer of forged two stroke pistons, Wiseco knows top end bearings are crucial to your top end rebuild. Wiseco two stroke top end bearings are manufactured by leading bearing suppliers and inspected for quality. This Part Fits: Year Make Model Submodel 1995 1998 Arctic Cat Bearcat 440 Base 1976 Arctic Cat El Tigre 4000 Base 1985,1992 1997 Arctic Cat Jag Base 1981 Arctic Cat Jag 4000 Base 1987 1988,1998 1999 Arctic Cat Jag 440 Base