Description
Supertech High Performance Engine Valves, Springs, Valve Accessories, Pistons and Block Guards Exhaust Valve Stem Seal Viton 7mm for VW Supertech VS-VW7E VW 7mm Exhaust Valve stem seal / Viton For: Exhaust valve OD Seal: 13,2mm/.520" OD Guide: 9,8mm/.385" Make: Audi, VW Material: Viton Supertech Intake Valve stem seals are made of a high quality polyacrylicic compound the exhaust valve stem seals consist of a special viton compound.