Genuine OEM Volkswagen Oil Strainer, part number 09A325429. This oil strainer is an integral part of the automatic transmission system, responsible for filtering debris and contaminants from the transmission fluid. Its function is to protect sensitive internal components like the valve body and clutch packs from damage, ensuring smooth operation and extending the transmission's lifespan. Made from durable mesh and housing. Genuine OEM oil strainers are designed with specific filtration levels and flow rates to maintain transmission fluid integrity.