BMW B58 Upgraded Aluminum Engine Block Coolant Flange - 11118619408

This coolant hose flange connects the coolant hose at the engine block. This flange is a known failure point and can break by either attempting to disconnect the upper radiator hose or failing on its own. Major coolant leaks on the side of the engine could be related to this flange.

Our upgraded aluminum flange improves on the original plastic design to ensure maximum reliability in the future.

Due to design flaws in the original part we recommend using an RTV sealant between the engine block and this upgraded design flange to ensure the best long term result.