The valve stem seal plays a critical role in your engine's lubrication system. Its primary function is to seal the gap between the valve stem and the valve guide, preventing excess engine oil from leaking into the intake or exhaust ports and subsequently burning in the combustion chamber. When valve stem seals degrade or fail, you may notice symptoms such as blue smoke from the exhaust, especially on startup or deceleration, increased oil consumption, and fouled spark plugs. Replacing worn seals is crucial for maintaining engine health, reducing emissions, and ensuring smooth operation. CORTECO is a reputable brand known for its quality sealing solutions. This specific valve stem seal (part code 49472004) is engineered to meet stringent performance standards, offering durability and reliable sealing for your vehicle's engine.