The Supertech polyacrylic intake valve stem seal set for VW/Audi and BMW engines is a 6mm style supplied as a set of 12. These intake-side seals match the 6mm specification and are intended for full-head maintenance or seal replacement on compatible European engines, providing the specified material and count for restoring intake stem oil control across a 12-valve set.
Supertech VW/Audi / BMW 6mm Polyacrylic Intake Valve Stem Seal - Set of 12