Coupling pan 98 Ford Ka

Hello together, I have a question about the clutch change on the Ford KA. Ford Ka RBT 98er 44KW/60PS key number 2.1: 0928 key number 2.2: 966 So now to my question / problem. I changed the clutch, i.e. central outlet + clutch disc + clutch machine. I noticed that the central outlet had a screw connection before and now has a plug connection. Thus, the non-return valve no longer fits the new component. I tried the Kupplu Can it be because I used the old hose and in the description I was in need of a new one that is slightly different from the new hose? What makes me stubborn, Ford probably still sells the old part even though you don’t get it anywhere. Maybe someone can help me, I need to know if I need a new hose or a suitable check valve. Thank you Kevin