This Genuine cap will work on the radiator of ANY Vintage Datsun or Nissan vehicles that uses the larger type cap
HOWEVER- because there is no rubber seal on the outer ring underneath the cap, if there's a coolant overflow into the expansion tank, it may not suck all of the coolant back into the radiator after it cools down
Use extreme caution when using the button to release cooling system pressure- the same caution you would use when removing a radiator cap
Cap has the Nihon Radiator logo on one ear and A9 on the other ear
