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(888) 312-8812 Login SignupThe Paccar Engine Coolant Pipe directs coolant between engine components as part of the temperature regulation process. Coolant flows through the pipe as the engine operates, carrying heat away from internal areas and moving it toward cooling surfaces. The pipe acts as a fixed pathway that allows fluid circulation to remain uninterrupted as operating conditions change. Its routing supports consistent coolant movement without requiring adjustment or interaction. Once coolant enters the pipe, it continues along the engine’s cooling loop to complete the heat transfer cycle. The Paccar 1973432 integrates into the MX-13 cooling flow to support steady thermal circulation.
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