Heater Hose

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Heater hose location
Courtesy of ClearMechanic.com

Heater hoses are rubber hoses that circulate engine coolant to and from the heater core, which is the small radiator that provides heat for the cabin. They typically extend from the engine to the firewall, because the core is located inside the vehicle’s dashboard. Relatively inexpensive, heater hoses should be kept in good condition to prevent leaks or ruptures that would jeopardize engine cooling.

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