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The Supertech intake valve guide for BMW B48 and B58 engines is a single direct-fit guide machined to 42 x 10.045 (+0.015) x 4.985 mm for intake-side installation. Specified for B48/B58 applications, the guide is supplied individually to support selective valve train servicing and precision fitment during cylinder head maintenance.
Supertech BMW B48/B58 42x10.045 (+0.015)x4.985mm Intake Valve Guide - Single (Drop Ship Only)
