Gday Snowy, I did purchase the one from the ty yam site ,but the fit into the crankcase was a bit loose , had to pack out with some urethane tape , after a while it kept popping out ,I then tried a brass elbow fitting that i had made up ,seeems to be holding up ok, ( I have not been on a long ride to test properly). I have also tried the local honda dealer to purchse the genuine item ,also with no success.