This online, No.42 Radiator Test Cap for Late BMW and Land Rover Astro online, US PRO 18pc Coolant System Pressure Tester Kit 5260 online, How to Pressure Test a Radiator Cap YourMechanic Advice ...

Caps on motor oil bottles, pop bottles and beer bottles keep the liquid in. But a radiator cap is not any ordinary cap. Though it seals the cooling system from the outside, the radiator cap is ...