The CORTECO Crankshaft Seal, part number 19037304B, is specifically engineered for manual transmission applications. Its primary function is to create a reliable seal around the crankshaft, preventing the leakage of oil or other vital fluids from the transmission housing. A properly functioning crankshaft seal is crucial for maintaining the lubrication system and preventing potential damage to other engine components. This seal is constructed with durable materials to withstand the demanding conditions within the transmission, offering longevity and consistent performance. By ensuring a tight seal, this CORTECO part helps to keep the transmission's internal components adequately lubricated, reducing friction and wear. This contributes to the overall efficiency and lifespan of the manual gearbox.