This ELRING valve stem seal, part number 104.380, is engineered to meet stringent quality standards for reliable engine operation. It plays a crucial role in preventing oil from entering the combustion chamber through the valve guides. Properly functioning valve stem seals are essential for maintaining engine compression, reducing oil consumption, and preventing blue smoke from the exhaust. This component is designed for a precise fit and long service life, contributing to the overall efficiency and longevity of your engine. ELRING is a trusted name in engine components, known for its commitment to quality and innovation. Choosing this valve stem seal ensures you are using a part that is built to perform and last, providing peace of mind for your vehicle's maintenance needs.