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 Add to Wish List Add to My Wish List Create New Wish List