NISMO 40th Radiator Cap

This racing radiator cap improves cooling performance by keeping the pressure in the cooling system higher and making it harder for the coolant to boil or evaporate compared to the standard radiator cap. Compared to the standard cap with an opening pressure of 0.09MPa (0.9kg/cm2), the boiling point is increased by approximately 6℃.

The design that was on sale in the 1990s has been reproduced on the top surface of the current racing radiator cap.

(Base part 21430-RS013 )

Specifications

First generation NISMO logo included
Outer diameter φ45
Valve pressure P = 1.3kg/cm2
Seal: Heat-resistant silicone rubber
Compatible models
This item is special order