Audi Output Shaft Seal - Corteco 01A409400B

Product Information

A transfer case output shaft seal is a sealing component located where the driveshaft connects to the transfer case in four-wheel- and all-wheel-drive vehicles. Its job is to prevent transmission fluid or gear oil from leaking out while keeping dirt and debris from entering the transfer case. By maintaining proper lubrication and fluid levels, the seal helps ensure smooth power delivery to the axles and protects internal components from damage.

• Visible fluid leaks around the transfer case or under the vehicle.
• Low fluid levels, leading to whining or grinding noises from the drivetrain.
• Vibration or driveline issues, caused by inadequate lubrication from fluid loss.

About Corteco

Corteco is one of the leading suppliers of sealing and vibration control components. Through their parent company Freudenberg Group, they are an OEM supplier for most car manufacturers around the world. Corteco stands as a distinguished entity within the Freudenberg Group, renowned for its unwavering commitment to excellence and innovation in the aftermarket industry. As an integral part of the Freudenberg Group, Corteco embodies a legacy of precision engineering, superior quality, and customer-centric solutions that have consistently surpassed industry standards.

Passengers can enjoy a comfortable and safe journey, knowing their vehicle is equipped with top-quality components. As Freudenberg’s aftermarket distribution arm, Corteco supplies OE-quality spare parts directly from the Original Equipment Manufacturer (OEM) – Freudenberg to the Independent Aftermarket, ensuring passenger cars are restored to their original setup post-repair.

Understanding the diverse needs of drivers, Corteco offers OE-quality spare parts tailored specifically for passenger cars. From rubber-metal and steering & suspension parts for a smooth ride to reliable sealing solutions and micronAir filters for the best air quality in the cabin, Corteco provides a comprehensive range of precision-engineered automotive spare parts.

Originally founded in 1849 as a leather tannery Freudenburg started making seals in 1932 with the invention of the Simmerring®. This seal style quickly replaced felt seals as the new standard for radial shaft sealing rings for rotating shafts/assemblies. Freudenburg began engineering and manufacturing vibration control technology with shock absorbers and bushings in 1957. It was in that same year that Freudenburg partnered with an Italian seal manufacturer Corte & Cosso, creating the Corteco brand. Continuing their history of innovation, Corteco introduced Micronair cabin filters in 1989 and quickly became the market leader in cabin filtering technology.

With over 26,000 parts and products in their product line, Corteco has one of the largest catalogs of sealing and vibration controls. FCP Euro has partnered with Corteco for the 2019 TC America Championship. They are a title sponsor on our 2018 Volkswagen GTI TCR race cars. We offer Corteco's full line of OE and OEM components for your European vehicle.