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Koyo Radiator Cap

Most modern vehicles are equipped with a 0.9 Bar pressure cap. Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 degrees Fahrenheit. That is nearly a 56-degree increase over water’s normal boiling point. By increasing the boiling point of water, your vehicle cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.


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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

Vehicle Specific Item!

Please Select Vehicle and check fitment!

$42.08

Save: $5.49
Sale Price:

$36.59

Estimated Ship Date: Today

In Stock - 345 New In Stock

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KOYO SK-D13
Please Note:

Some images might not represent the actual product

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

Vehicle Specific Item!

Please Select Vehicle and check fitment!

$42.08

Save: $5.49
Sale Price:

$36.59

Estimated Ship Date: Today

In Stock - 14 New In Stock