Check out any of the thirty Kuehler & Schlaeuche components enlisted.
The Screw, Tapping is the cheapest item from this partsfiche.
Parts such as the Kuehler & Schlaeuche: O-ring, Collar, Pipe 1, O-ring are included in the Dt125re 2006 1d04 Switzerland 1e1d0-332g1 Kuehler & Schlaeuche parts fiche.