This CORTECO crankshaft seal, part number 12011161B, is engineered to provide reliable sealing for your vehicle's differential. Crafted with durable materials, this seal is built to withstand the demanding conditions within the differential housing. It plays a crucial role in preventing the leakage of lubricating fluids and the ingress of contaminants, which are essential for the longevity and efficient operation of the differential. Replacing a worn or damaged crankshaft seal is vital for maintaining the integrity of your differential system. The CORTECO 12011161B offers a precise fit and dependable performance, ensuring that your differential operates smoothly and reliably. Choose CORTECO for quality automotive components that meet stringent industry standards. This seal is a direct replacement part, designed for easy installation and long-lasting service.