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The Supertech manganese bronze valve guide set for BMW S38 engines supplies intake and exhaust guidance for 7mm valve stems in a set of 12. These valve guides are specified for S38 applications and are supplied as a matched dozen for engine rebuilds or head servicing. The manganese bronze construction and 7mm stem sizing reflect the cataloged specification for direct engine-fit use.
Supertech BMW S38 Manganese Bronze Intake/Exhaust Valve Guide 7mm Stem - Set of 12
