Wiseco 24 x 29 x 23.8mm Top End 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 2004 2005 Arctic Cat King Cat 900 Base 2005 2006 Arctic Cat King Cat 900 EFI Base 2005 Arctic Cat King Cat 900 EFI Early Build Base 2001 Arctic Cat Mountain Cat 800 Base 2001 Arctic