Most bikes come with a 1.1 bar radiator cap, which can withstand pressures of up to 14.22 psi before coolant pushes the valve open, causing steam to come out of the overflow. AS3's high pressure radiator caps range from 1.6 to 2.0 bar, withstanding pressures much higher than other standard radiator caps. All AS3 Performance radiator caps are a universal fitment on all makes of Japanese motorcycles and cars. Continue below to explore our wide range of high pressure radiator caps.
Below are some of the most popular high pressure radiator caps from AS3 Performance: