Features
- Made to keep your vehicle's engine running cool
- Designed to maintain proper cooling level and prevent overheating
- Manufactured from high-strength materials to last
- Durable construction to withstand everyday wear and tear
Product Details
OE Style Radiator Pressure Cap by CSF®. CSF radiator pressure caps are built from the finest materials to keep your coolant inside your radiator, pushing temps low and keeping their promise to you! You can always trust the cooling experts with your radiator, intercooler, condenser, or radiator pressure cap needs.
When pressures inside your cooling system increase above its psi rating, the radiator pressure cap release some of the coolants into the overflow tank. It does this by use of a spring loaded valve. Once enough coolant has exited the system to reduce the pressure, the valve closes again. This action allows the system to remain at the optimal psi while the engine is running.
When the engine cools and pressure in the system drops, the radiator pressure cap allows the excess coolant in the overflow tank to return to the system by use of a 2nd spring loaded valve. This 2nd valve responds to the vacuum created in the system from the drop in pressure and pulls the coolant out of the overflow tank. Not only does this recycle the excess coolant to prevent air pockets in the radiator, but it also prevents the softer components of the cooling system, such as the hoses, from becoming crushed by the external air pressure.