The bx 2200 and bx series tractors tend to run hot and are very sensitive to lack of air flow through the radiator. i have made one major change on my Kubota bx 2200 a after mart radiator for a Honda auto it has three rows of tubes and aluminum tanks top and bottom of the radiator. Rework of the an shroud is required I have a press brake for re bending of the shroud a big job. A new 5 blade fan is next. Please let me know if you have made any other improvements to the cooling system