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Stant Racing 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 high-quality Stant 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). 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.

Condition: New

Stant Racing Radiator Cap, 18-22psi

$19.99In Stock

Condition: New

Stant Racing Radiator Cap, 21-25psi

$19.99In Stock

Good quality, but not right for my FF


20 lbs is a bit too much pressure for my 1980 Zink Z-16 with Kent motor. I went to a standard cap with 7lb rating. But, if you really need 20lbs, this is a great one.


Virginia Beach, VA

Best cap on the market


Good quality excellent price




Stant Racing Radiator Cap

5.0 2