I have just replaced the radiator in mine and am very surprised that it is only a single core 28mm one. I have had heating problems in the past and now I know why, I had never taken much notice of the radiator before but now I have I am looking around for a multi core one which will keep temperatures normal, even in the outback where it is normally 120F in the shade! There is a space problem, so I suppose everything can be moved forward slightly to accommodate the extra thickness of the multi core one.