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The Supertech conical valve spring kit for BMW N54 24-valve 3.0L engines is specified for that head and instructs use of the factory valve stem seal. Supplied as conical springs matched to the N54 valvetrain, this kit is intended when replacing springs during head service or rebuilds; retain the factory valve stem seal as noted for proper installation.
Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal)
