the quick connect itself is a AG style, the original equipment is a Holmbury DIN series quick connect, which is the same as most AG (agriculture) style quick connect that many manufacturers use not. They are compatible with the Pioneer AG style quick connects and the Safeway S41 series quick connect. The Massey uses the poppet valve because it is a high flow, the ball valve style the JD uses on the older machines is not such a high flow but I'm sure with this application it will be fine. As for leaking, as long as the seats are in good shape I don't see any reason they would not seal completely. The poppet style you can get many places, for about 9 bucks and up.