The Banzai Racing Billet Aluminum Filler Neck is designed to be a direct replacement for the 86-88 FC RX-7 plastic filler neck. This part is used to eliminate the AST (Air Separation Tank) on the 93+ RX7 that have the two piece thermostat housing. The kit comes with a new Viton O-ring and stainless hardware.
Uses OEM or aftermarket pressure cap.
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
