Starter fitment query

Anyone know if the ZRX1200/GTR1000/ZZR1100 etc starters are the same fitment as the GPZ900R one is? Restoring an old gpz900 and the starter just crapped out, might be rebuildable (well after a heavy heavy cleaning it needs - both bearings , brush card and seals) but want the bike back on the road ASAP as well it's summer