Engine Coolant Bypass HoseHVAC Heater Hose

Fits Navigator (2018 - 2021)

Heater Hose - Repair or Replace
A heater hose transfers heat from your engine’s cooling system to your vehicle’s heater. If the hose is leaking, ruptured, or appears to be on the verge of failure, bring your Lincoln Navigator to our Lincoln service department for repair.