WHITES RADIATOR CAP 1.8 BAR (26lb)The Whites High Pressure Radiator Cap is the simplest and most inexpensive way to reduce your motorcycle or ATV from boiling over. The Whites High Pressure Radiator cap raises your cooling systems maximum operating pressure and therefore raises the boiling point of your coolant. This is a perfect upgrade for most motorcycle and ATV radiators with stock caps. Higher pressure radiator cap increases the boiling point of your coolant to reduce boil over