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The Supertech 5mm Viton intake valve stem seal set for BMW applications is supplied as a set of 12 and uses the 5mm stem dimension specified. Constructed from Viton per the listing, these intake seals are packaged to replace all intake valve seals on engines that require twelve 5mm Viton seals during a valve‑seal service.
Supertech BMW 5mm Stem Viton Intake Valve Stem Seal - Set of 12
