EOC = Engine Oil Cooler. This cools engine oil through the radiator. Looks just like transmission lines, but on the other side of the unit.
TOC = transmission oil cooler lines. 2 metal connections for cooling transmission oil. Usually these are on the passenger side of the radiator.
LIC or LC = Low Coolant Indicator which is located usually mid passenger side tank, and is a sensor port with wires for indicating coolant levels
HRL = Heater return line. usually a small port found on the passenger side of the radiator.
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