It could be that a good radiator shop can just replace the core, but if not I am sure that there are dealers here who have radiators for the 1300D. LMTC has many parts for the yanmars, I am not sure that he messes with the littlest ones. Little Miami Trading Company - Tractor Parts Books Or Hoye--He has the radiator on sale right now for $285. COOLING: Yanmar Tractor Parts