When I had my 1700, here in Mississippi, with a 4 foot bush hog, mine didn't get hot, and I would mow for hours with it, in mid summer. Well, it did at first, till I replaced the radiator cap, and bought a sending unit from Hoye, that only cost I think it was a cheap price, and never thought of putting a water pump on. They made these tractors to be used, and they knew what they were doing and what was needed on them, it works fine without a water pump.