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(888) 312-8812 Login SignupThe Paccar Engine Coolant Pipe directs coolant flow between engine components as part of the cooling circuit. As coolant circulates, the pipe channels fluid along a fixed route that connects engine passages and cooling components. This movement supports consistent temperature control during engine operation. The pipe remains stationary while coolant flows internally at varying rates depending on engine load. Pressure changes within the cooling system pass through the pipe as part of normal operation. The component is addressed during cooling system service or inspection. The Paccar 1957300 provides a defined coolant transfer path within the engine system.
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