CLASSIC MINI 15LB/PSI RADIATOR CAP ROVER AUSTIN COOPER GT 998 1275 1300 850 5L4
Classic Mini Radiator Cap 15LB 1980-92 Except Expansion Tanks
Fitted from a plus on to increase engine running temperature. If your radiator has a sender unit in the bottom you may have an expansion tank and therefore the radiator will need a better sealing pressure cap which allows a small vacuum.