NISMO 21430-RS013 Racing Radiator Cap Operation Personal P = 0.13MPa (1.3kg/CM2)

Compared to standard caps with a 0.09 MPa (0.9 kg/cm²) valve setting, this higher-pressure cap raises the coolant’s boiling point by about +6°C—helping reduce boil-over under harder driving conditions.

Specs

• Outside Diameter: 45mm

• Operating Valve Pressure: 0.13 MPa (1.3 kg/cm²)

• Seal: Heat-resistant silicone rubber

Most orders ship within 1–3 days, either from our warehouse or directly from the manufacturer. We validate inventory with our vendors to provide the most accurate information possible, though occasional delays can happen.

This partner-first approach helps keep costs down and shipping times fast, with full visibility from order to delivery. Have questions? Email sales@jdmkonbini.com and we’ll help right away.