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The Gates molded heater‑to‑engine coolant hose for 1999–2003 BMW 540i V‑8 4.4L provides the specific routed connection between the heater circuit and the engine. Its molded design accommodates precise bends and attachment points necessary for correct flow to the heater core. Replace this hose to restore heating system performance and prevent coolant loss or poor circulation in the heater loop.
Gates 99-03 BMW 540I V-8 4.4L Heater To Eng. Molded Coolant Hose