This CORTECO crankshaft seal, part code 01031611B, is specifically engineered for manual transmission systems. It plays a crucial role in preventing lubricant from escaping the engine and external 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 perfect fit, contributing to the longevity and reliability of your vehicle's transmission. Proper sealing is essential for the optimal functioning of your manual gearbox. A failing crankshaft seal can lead to significant oil loss, potentially causing severe damage to transmission components and requiring costly repairs. Replacing a worn seal with a quality part like this CORTECO unit helps maintain the integrity of your transmission system.