Replace old Neovane and Magnaflow pumps with this new design! The new Hardin Marine "Ram-Force" series cam driven water pump is the latest evolution of cam driven pump design. These pumps are manufactured from premium billet 6061-T6 aluminum and utilize a 316L stainless steel impeller housings. The Ram Force pump utilizes a precision ground pump shaft for strength and dual roller bearings for long life. A large 8 vane rubber impeller that draws water through a 3/4" NPT single inlet and exits water flow through dual 3/4" NPT ports. The ports are located to provide the clearest path for easy plumbing to the engine block water inlets This pump allows plenty of clearance for up to 8" diameter harmonic balancers. Pump is 5-1/4" long from timing cover mounting face to end of pump.