Designed to repair the Mercruiser One Drive, MR Drive, Alpha One, Gen I and TRS transom housing,Allows for permanent repair and maintenance of gimbal housing,Kit Includes a new bellows (Sierra part number with a machined poly vinyl chloride PVC repair ring fitted on the end, waterproof epoxy, brush, and drift,Read and follow enclosed instructions for surface preparation and install the replacement bellows with the waterproof epoxy (included) in position, let cure for at least 24 hours before completing the assembly,All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction