CSF 16psi Rad Cap for CSF7029

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CSF 16psi Rad Cap for CSF7029

13.50

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CSF ships the CSF 7029 with a 20 psi cap but the OEM cap is 16 psi.

We have tried to get CSF to ship them with 16 psi caps but they won’t.

Nissan cooling systems are finicky so we recommend switching to the 16 psi cap.

This cap is the correct 16 psi cap and direct replacement for your CSF 7029 radiator.

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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 second spring loaded valve. This second 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