WATER TEMPERATURE GAUGE CALIBRATION

The following information is from Freightliner for the water temperature gauge in the D.   Note that this info is from Freightliner, not Cummins, as Freightliner supplies and installs the water temperature gauge.

When the needle just comes off the Cold peg, the coolant temp is 180 degrees F.
At midpoint, the coolant temperature is 210 degrees F.
At the start of the Hot (red) band, the coolant temperature is 226 degrees F.