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High Performance Radiator Caps

A radiator cap is a severely important part for your engine. A radiator cap allows the engine’s coolant to expand and contract without allowing air to enter the cooling system. Its important to have a radiator cap that is properly rated for your engines pressure. As the engine’s coolant heats up, it expands, increasing the pressure inside the closed coolant system. The radiator cap controls the expansion and provides a constant pressure on the system. A factory radiator cap is not designed to work efficiently with your high performance engine. Factory caps individual ratings may vary, but are generally anywhere from 13-16 psi. A High Performance Radiator Cap generally ranges anywhere from 19 – 32 psi.

There are many options when deciding which aftermarket radiator cap to go with. Some manufacturers have options that will include a thermostat on the cap so you’re able to monitor your coolant temperature. Other manufactures have caps that feature a safety release. No matter what option you decide to go with, its important to make sure your new cap will be able to handle the high pressure from your modified engine. If you have any questions regarding high performance radiator caps for your vehicle , reach out to one of our experienced representatives and we will help you make a more informative decision.

A radiator cap is considered to be an important component of the engine cooling system that is essential for ensuring that proper amount of cooling system pressure is maintained at all times. Performance radiator caps are not only a great way to add a classy appearance to your vehicle ’s engine bay, but they also play a substantial role in improving the efficiency of the cooling system providing even more protection to your valuable investment, no matter whether it’s a high performance race car or a daily driver.

When it comes to getting the most out your vehicle ’s cooling system, there are a lot of things you must consider. When faced with high-load driving conditions, the pressure levels in your radiator go through the roof. Unlike your factory caps that are unable to handle such pressure releasing it through a pressure release valve and causing the fluid to blow out like a geyser, high-pressure radiator caps have higher pressure ratings, which means they allow for a higher pressure inside of the cooling system, thus increasing the boiling point of the engine coolant, reducing the risks of overheating and keeping the fluid flowing within the system.

Whether you want to dress up your engine bay in style or make the cooling system of your vehicle perform at its peak efficiency, or both, we have you covered. Here, at Sport Compact Warehouse we do our utmost to provide you with a comprehensive array of premium performance radiator caps that are made with great craftsmanship to deliver unmatched quality. Polished, chrome-plated, anodized, etc. – we have the right product to suit even the most discerning of tastes. The radiator caps we supply are manufactured using only top grade materials to ensure that they will stand the test of time and provide reliable operation even under the toughest conditions. For those who crave for both exceptional touch of style and rock-solid durability we offer radiator caps that are crafted from hand laid carbon fiber.


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MR GASKET 2470B
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MR GASKET 2470B Thermocap Radiator Cap For Domestic Vehicles

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$53.50

Save: $6.98
Sale Price:

$46.52

Estimated Ship Date: Today

In Stock - 45 New In Stock

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MR GASKET 2470R
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MR GASKET 2470R Thermocap Radiator Cap For Domestic Vehicles

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$53.50

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Sale Price:

$46.52

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In Stock - 2 New In Stock

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MR GASKET 2471R
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MR GASKET 2471R Thermocap Radiator Cap For Domestic Vehicles

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$59.81

Save: $7.80
Sale Price:

$52.01

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In Stock - 13 New In Stock

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MR GASKET 2471S
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MR GASKET 2471S Thermocap Radiator Cap For Domestic Vehicles

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$52.19

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Sale Price:

$45.38

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In Stock - 19 New In Stock

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MR GASKET 2476BK
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MR GASKET 2476BK Thermocap Radiator Cap For Domestic Vehicles

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$53.74

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Sale Price:

$46.73

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In Stock - 4 New In Stock

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GATES 31333
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GATES 31333 OE Type Radiator Cap

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$10.60

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Sale Price:

$9.22

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In Stock - 6 New In Stock

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GATES 31518
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GATES 31518 Safety Release Radiator Cap

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$11.79

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Sale Price:

$10.25

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In Stock - 11 New In Stock

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GATES 31535
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GATES 31535 Safety Release Radiator Cap

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$10.13

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Sale Price:

$8.81

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In Stock - 5 New In Stock

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GATES K080530HD
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Gates K080530HD Micro-V Belt

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$59.94

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$52.12

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In Stock - 12 New In Stock

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GATES K080550HD
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Gates K080550HD Automotive Accessories

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$58.39

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$50.77

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In Stock - 7 New In Stock

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GATES K080670HD
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Gates K080670HD Micro-V Belt

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$65.67

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Sale Price:

$57.10

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In Stock - 8 New In Stock

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SKUNK2 359-99-0010
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SKUNK2 359-99-0010 Radiator Cap High Pressure Type B

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$37.96

Save: $4.95
Sale Price:

$33.01

Estimated Ship Date: Today

In Stock - 1 New In Stock

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SKUNK2 359-99-0020
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SKUNK2 359-99-0020 Radiator Cap High Pressure Type A

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$38.94

Save: $5.08
Sale Price:

$33.86

Estimated Ship Date: Today

In Stock - 17 New In Stock

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HKS 15009-AK004
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HKS 15009-AK004 S Type Radiator Cap, 108kPa (1.1kgf / cm2)

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$31.52

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Sale Price:

$27.41

Estimated Ship Date: Today

In Stock - 84 New In Stock

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KOYO SK-C13
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KOYO SK-C13 Hyper Red Radiator Cap A-Type For AllRadiators 1.3kgf/cm Pressure Rating

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$43.59

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Sale Price:

$37.90

Estimated Ship Date: Today

In Stock - 580 New In Stock

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KOYO SK-D13
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KOYO SK-D13 Hyper Red Radiator Cap B-Type 1.3kgf/cm Pressure Rating

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$43.59

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Sale Price:

$37.90

Estimated Ship Date: Today

In Stock - 19 New In Stock

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MISHIMOTO MMRC-11-FRD
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MISHIMOTO MMRC-11-FRD Ford 1.1 Bar Overflow Reservoir Cap

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$19.18

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Sale Price:

$16.68

Estimated Ship Date: Today

In Stock - 6 New In Stock

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MISHIMOTO MMRC-13-SM
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MISHIMOTO MMRC-13-SM High Pressure 1.3 Bar Radiator Cap

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$29.14

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Sale Price:

$25.34

Estimated Ship Date: Today

In Stock - 135 New In Stock

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MISHIMOTO MMRC-13-SMCF
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MISHIMOTO MMRC-13-SMCF Carbon Fiber 1.3 Bar Radiator Cap For 31-32mm Fill Necks

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$44.09

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Sale Price:

$38.34

Estimated Ship Date: Today

In Stock - 27 New In Stock

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MISHIMOTO MMRC-13L
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MISHIMOTO MMRC-13L High Pressure 1.3 Bar Radiator Cap

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$29.14

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Sale Price:

$25.34

Estimated Ship Date: Today

In Stock - 59 New In Stock

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MISHIMOTO MMRC-20-SM
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MISHIMOTO MMRC-20-SM High Pressure 2.0 Bar Radiator Cap

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$29.14

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Sale Price:

$25.34

Estimated Ship Date: Today

In Stock - 102 New In Stock

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MOROSO 63309
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MOROSO 63309 Racing Radiator Cap

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$22.33

Save: $2.91
Sale Price:

$19.42

Estimated Ship Date: Today

In Stock - 13 New In Stock

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MOROSO 63313
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MOROSO 63313 Racing Radiator Cap

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$20.82

Save: $2.72
Sale Price:

$18.10

Estimated Ship Date: Today

In Stock - 5 New In Stock

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MOROSO 63316
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MOROSO 63316 Racing Radiator Cap

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$20.82

Save: $2.72
Sale Price:

$18.10

Estimated Ship Date: Today

In Stock - 56 New In Stock

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MOROSO 63320
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MOROSO 63320 Racing Radiator Cap

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$20.82

Save: $2.72
Sale Price:

$18.10

Estimated Ship Date: Today

In Stock - 94 New In Stock