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Stant Lever Radiator Cap

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High-pressure radiator caps help to insure against overheating. Raising your coolant pressure will raise the coolant boiling point (1 psi adds approximately 2°F to the boiling point, depending on your coolant mixture).

These Stant racing radiator caps are available with two different pressure settings: 20 psi (holds between 18 and 22 psi) or 23 psi (holds between 21 and 25 psi). The "Lev-R-VenT" lever allows you to manually release any remaining pressure safely before removing the cap. Each fits standard full-size radiator necks. Sold individually.

Before installing a high-pressure cap, have your cooling system inspected and pressure checked to make sure that it can handle the increased pressure.

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.

1590-20 PSI
Condition: New

Stant Lever Radiator Cap, 18-22 psi

$23.99In Stock

1590-23 PSI
Condition: New

Stant Lever Radiator Cap, 21-25 psi

$23.99In Stock