Fit to:Tractor Radiator Fits Case IH 806 826 856 1026 1206 1256 391931R91 386860R91 high performance all aluminum radiator Case IH, International 806, 826, 856 Gas & Diesel, 1206, 1256 Hydro, 2806, 2856 Gas & Diesel Model ractor. OEM part numbers:391931R91 386860R91 530281R1 Core Size :23″ x 18.62″ Inlet Diameter: 2” Outlet Diameter: 2” Row Count: 4 Rows Warranty: 1 Year 100% TIG welded.