This Supertech set includes eight 6mm polyacrylic intake valve stem seals intended for VW, Audi, and BMW applications. Valve stem seals control oil at the valve guide and help prevent excess oil from reaching the combustion chamber. Supplied as a matched set of eight, these seals are suitable for routine engine rebuilds or maintenance where the 6mm size is specified.
Supertech VW/Audi / BMW 6mm Polyacrylic Intake Valve Stem Seal - Set of 8