GP HAMMERHEAD 2100279 SWIVEL REPAIR KIT MAJOR (1875)2100279 General Pump Major rebuild kit for Hammerhead old style swivels, both 18 inch & 20 inch GP Hammerhead Surface Cleaners. This is the correct kit If your swivel has a snap ring at the bottom. If your swivel has a splash deflector and 3 screws on the bottom, please see these part numbers: GP2100373 General Pump Major Repair Kit for Hammerhead Models with Sealed Bearings (No Grease Fitting). GP2100372 General Pump Major Repair Kit for Hammerhead