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The CORTECO Valve Stem Seal, part number 49472831, is a critical component for maintaining the integrity of your engine's valve train. Its primary function is to seal the valve stem, preventing lubricating oil from the valve guides from entering the intake and exhaust ports, and subsequently the combustion chamber. A worn or damaged valve stem seal can lead to several issues, including increased oil consumption, blue smoke from the exhaust (especially on startup or deceleration), fouled spark plugs, and reduced engine efficiency. Replacing faulty seals with high-quality CORTECO parts helps restore proper engine operation and prolong the life of other engine components. Crafted from durable materials, this seal is engineered to withstand the high temperatures and pressures within the engine. Proper installation is key to ensuring its effectiveness and longevity. This CORTECO valve stem seal is a reliable choice for maintaining your engine's health.