The General Pump Old Style Hammerhead Major Repair Kit (2100279) is designed for older style Hammerhead cleaners. It is only suitable for use with 18" and 20" Hammerhead models with a retaining snap ring. It will not work with models that feature a splash deflector and three screws on the bottom. If your swivel has a splash deflector and 3 screws on the bottom, please see General Pump part numbers 2100373 and 2100372.