Quick view Yamaha 2000-2012 Yamaha Big Bear 400 Top End Rebuild Kit Compare $941.55 $899.99 2000-2012 Yamaha Big Bear 400 Top End Rebuild Kit includes:( 1 ) New Genuine OEM Yamaha Engine Cylinder PN 5FU-11310-01-00( 1 ) New Genuine OEM Yamaha 83mm STD Bore Size Piston PN 4GB-11631-00-Y0( 1 ) New Genuine OEM Yamaha 83mm STD Bore Size Piston Ring... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List