Moose Racing High Pressure Radiator Cap - 1.8 bar (26psi) 1903-0018Upgrading to a high pressure from the stock radiaotor cap is the simplest and least expensive way to avoid over boiling your engine Raising your cooling systemss maximum operating pressure increases your coolants boiling point, allowing your to ride harder and longer Chrome finished cap Universal fit for most machines High temp corrosion resistant silicone seals