Quick view Polaris 2001-2006 Polaris Sportsman 90 Top End Rebuild Kit Compare $416.18 $399.99 2001-2006 Polaris Sportsman 90 Top End Rebuild Kit includes:( 1 ) New Genuine OEM Polaris Engine Cylinder PN 0450007 ( 1 ) New Genuine OEM Polaris 53mm STD Bore Size Piston PN 0450802 ( 1 ) New Genuine OEM Polaris 53mm STD Bore Size Piston Ring Set PN... Add to Cart Add to Cart