Koyorad Type B BLUE Label Radiator Cap - Shallow Plunger

Extract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap!  This Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high performance engines of excessive heat. 

This design is made specifically for the BRZ, FRS and GT86 factory radiator fill neck.