New OEM Genuine Nissan coolant hose nipple for the intake manifold and water bypass out of the thermostat housing. This is a BPT (British Pipe Thread) so a NPT will not take its place. It will connect to 1/2" I.D. rubber hose. Will fit Datsun 240Z, 1970 to June 1972. See #19 & #22 in picture.