This ELRING valve stem seal, part number 166.190, is engineered to provide a reliable seal for your engine's valve stems. Its primary function is to prevent excessive oil consumption by sealing the gap between the valve stem and the valve guide. Proper sealing is crucial for maintaining engine compression, reducing emissions, and ensuring smooth operation. Crafted from durable materials, this seal is built to withstand the high temperatures and pressures found within the engine. Its precise design ensures a perfect fit, minimizing the risk of leaks and oil blow-by. Replacing worn valve stem seals can resolve issues such as blue smoke from the exhaust, rough idling, and a noticeable drop in engine power. Choosing ELRING means opting for a component that meets stringent quality standards. This valve stem seal is an essential part for maintaining the health and efficiency of your engine, offering a cost-effective solution to common engine problems. Ensure your engine runs cleaner and more efficiently with this dependable component.