1.11127646555 11127585907 11127572854 11127561714 Aluminum Motor Cylinder Valve Cover Assembly for Mini R55 R56 R57 R58 R59 2.Sealing and Protection: The valve cover tightly seals the valve mechanism to prevent dust and contaminants from entering, protecting internal components from wear and damage. It is exquisitely designed, typically manufactured through alloy casting or thin steel plate stamping to ensure a tight connection. 3.Lubrication and Protection: The valve cover is equipped with an oil port to ensure normal circulation of lubricating oil, keeping the engine lubricated and running smoothly. At the same time, it is connected to the crankcase ventilation system to maintain air quality inside the engine and protect against carbon buildup that could reduce performance. Additionally, the valve cover helps seal out dust, ensuring cleanliness and stability inside the engine. 4. PROTECTION: The gasket of the valve mechanism prevents dust and premature wear of valve components.