Sea-Doo › Sea-Doo 900 Top End Rebuild Kit (Standard 74mm) Image 1 of 1 Sea-Doo 900 Top End Rebuild Kit (Standard 74mm) $565.43 Standard bore rebuild kit for Sea-Doo 900 engines. Perfect for refreshing engines within factory tolerances. Add To Cart Added! Standard bore rebuild kit for Sea-Doo 900 engines. Perfect for refreshing engines within factory tolerances. You Might Also Like Sea-Doo 580 Top End Rebuild Kit (1mm Over Platinum, 77mm) $258.46 Sea-Doo 580 Top End Rebuild Kit (.75mm Over Platinum, 76.75mm) $258.46 Sea-Doo 900 Top End Rebuild Kit (1mm Over, 75mm) $565.43 Sea-Doo 1503/1630 4-Tec Top End Rebuild Kit (100.46mm) $546.83 Sea-Doo 900 Top End Rebuild Kit (.5mm Over, 74.50mm) $565.43