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The Gates emission control hose for 2000–2003 BMW X5 with the 4.4L V8 links the valve cover to the oil separator, maintaining the crankcase ventilation circuit. Replace this hose when the original shows wear to restore the sealed connection between cover and separator, helping preserve proper vapor routing and reduce the risk of leaks that can affect emissions and engine performance.
Gates 00-03 BMW X5 V-8 4.4L Valve Cover To Oil Separator Emission Control Hose