Heavy Duty All Aluminum Radiator Fits Toro Mower ALWAYS REFERENCE TO YOUR OEM NUMBERS PRIOR TO BUYING! Applications: Fits Toro Rotary Mower Models: 5900, 5910 Fits Toro Traction Unit Models: 5900, 5910 Our Part Number: 21345 Core (Finned area) Dimensions: 24.6” x 19.1” x 4.1” Inlet: 1.75” Outlet: 1.75” Overall Dimensions: 32.3” x 20.3” x 7.2” Replaces OEM Part Numbers: 114-5542 154122 Notes: Includes pressure cap High strength all aluminum construction *MADE IN THE USA* 100% LEAK TESTED FROM THE FACTORY GUARANTEED FIT AND FUNCTION