Enginetech S305V-20 | 20-Count Positive Metal Clad Valve Stem Seals 11/32" .500"

The Enginetech S305V-20 Valve Stem Seal Set is designed for a wide range of engines requiring 11/32" (0.3438") stem diameter and 0.500" guide outer diameter seals. Crafted from high-quality Viton material, these positive (POS) seals with a ring and band design provide superior oil control and durability under high-temperature and high-pressure conditions. The set includes 20 seals, ideal for V8 or inline engines needing precise valve stem sealing during rebuilds or repairs. Engineered to meet or exceed OEM specifications, the S305V-20 ensures a tight seal to prevent oil leakage and maintain engine efficiency. Perfect for professional mechanics and DIY enthusiasts working on engine overhauls.