I looked back at my previous post, and I had written that the range was 170 to 220. There are several gauges listed.
The parts numbers are as follows:
393478R91,170-220 degree range for use with 165 to 195 degree thermostat, 130 series tractors536960R1, 170 to 220 degree range, for use with 165 to 195 degree thermostat, 140 series tractors 406989R91, Electrical gauge?, 120 to 180 degree range, for use with low boiling point thermostat, 100 and 130 series tractors 406884R1, 120 to 180 degree range, for use with low boiling point thermostat, 140 series tractors. As to it being annoying seeing the pointer in the cold area, that was normal back when the tractors came out. It says right in the owners manual that any tractor with a gasoline engine was supposed to run 7/8 of the way into the cold range under normal conditions. However, anywhere in the run range was also acceptable. The kerosene tractors were supposed to run hotter, and hence, the run range was designed for them.
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