This CORTECO crankshaft seal, part number 12001623B, is specifically engineered for manual transmission applications. It plays a crucial role in preventing oil from leaking out of the engine and contaminants from entering the transmission. Crafted with durable materials, this seal is built to withstand the demanding conditions within the engine bay, including high temperatures and constant rotation. Its precise design ensures a snug fit, providing reliable sealing performance over its service life. Properly functioning seals are essential for the longevity of your transmission and engine. Replacing a worn or damaged crankshaft seal with this CORTECO part can help maintain optimal lubrication and prevent costly damage to related components.