Our radiator is sure to please - it's complete! It is a direct replacement of the original and fits the John Deere 4000, 4020 tractors. The tank top and bottom plate are installed and ready for installation in your tractor. Overall Height-31-1/4 Width - 20-5/8. The core measures 24-3/8" high x 19-1/2" wide x 2-5/8" deep. The filler neck measures 1-1/4". The cooling tubes in the Radiator Complete are arranged in a 3-2 stagger pattern to provide maximum cooling even when plowing or doing heavy work. The inlet measures 2" and the outlet 2". Replaces John Deere part numbers AR49454. Complete your installation by adding one of our radiator caps and our two wire hose clamps.