The Corteco Automatic Transmission Output Shaft Seal (A5S360R/390R) - 19037132B is a high-quality seal designed specifically for use in automatic transmissions. It is compatible with A5S360R and A5S390R transmissions and is made from durable materials to ensure long-lasting performance. This seal is responsible for preventing fluid leaks from the output shaft of the transmission, which can cause damage and affect the overall performance of the vehicle. It is a reliable and essential component for maintaining the proper functioning of the transmission.