HKS Limited Edition Radiator Cap. Rated at 108 kPa or 1.1 kg/cm^2.
Fits FC, FD & RX-8
Radium high performance radiator caps are engineered to improve cooling efficiency.
Available in 3 pressure ratings: 1.1Bar (16.0psi), 1.3Bar (18.9psi), and 1.5Bar (21.8psi). A higher radiator coolant pressure effectively raises the boiling temperature of the coolant, providing extra safety margin and preventing air pocket cavitation at the water pump
Replacement Coolant Reservoir Cap by Gates®. 16 PSI Pressure Raiting
