This FEBI BILSTEIN 11419 component set includes a crankshaft seal and a wheel hub bearing, engineered for optimal functionality. The crankshaft seal is crucial for preventing oil leaks from the crankshaft, maintaining engine lubrication and preventing damage. Its precise design ensures a tight seal under various operating conditions. The included wheel hub bearing is built to withstand the demands of daily driving, providing smooth rotation and stability for your wheels. It is designed for longevity and consistent performance, contributing to a safer and more comfortable ride. FEBI BILSTEIN is known for its commitment to quality and precision engineering, ensuring that this part meets stringent automotive standards. Installation by a qualified mechanic is recommended for optimal results and vehicle safety.