Defender 200tdi oil cooler pipes

I have a 1989 90 and have put a 1992 defender 200tdi in it. I put a new bearmach defender rad in it but the oil cooler pipes are slightly different threads, the pipes are the ones that come with the engine, although they did fit my old 2.5TD rad, is there an adaptor you can get. I have joined them together for now.
by the way im new on here so hi.

hi wont adaptors swap from old rad ,there are 2 adaptors earlier ntc3858 and later esr1262

The adaptors out of my old rad are 3/8 bsp as i have used a 3/8 elbow to join them, but on the new rad there is a lock nut (30mm spanner) if i undo this the brass spigot just pushes in, so the rad isnt threaded

just put some photos on