Ensure good sealing at the joint surface and keep the engine oil from leaking this gasket also helps prevent the entry of other harmful materials to the valve train.
It is made of rubber, with good toughness, ensuring no oil leakage, and durable.
11427525335 11427537293 11428637820 11428637821 is use for BMW F20 F21 F23 F22 F30 F87 E90 and meets OEM production standards.