Mishimoto MMRC-CF13S Small 1.3 Bar Rated Carbon Fiber Radiator Cap Raises the boiling point of engine coolant to provide a safer and more efficient cooling system Ergonomically designed for easy removal and installation Installing a new cap can prevent overheating and cooling system failure Pressure Tolerance: 1.3 Bar / Fits: 31-32mm Fill Necks / Note: Will not fit stock KTM radiators Mishimoto Lifetime Warranty Constructed from hand laid carbon fiber 1.3 bar pressure tolerance (19 pounds) Fits most import vehicles Fits 31-32 millimeter fill necks Limited lifetime warranty