1.3 Bar Hyper Red Racing Radiator Cap

The Koyorad SK-C13 is a high-performance 1.3 Bar Hyper Red Racing Radiator Cap engineered to elevate your vehicle's cooling system efficiency. By increasing the system pressure to 1.3 bar (approximately 18.9 psi), this cap raises the boiling point of coolant, allowing high-performance engines to operate under excessive heat conditions more effectively. This also helps to prevent air from entering the cooling system, a common issue with stock caps. It is specifically recommended for use with Koyo's all-aluminum performance radiators. However, it is important to note that this cap is not intended for use with OEM-type radiators that feature plastic tanks. Ensure proper fitment by checking compatibility with your specific Koyo all-aluminum radiator. The universal design is intended for use with a wide range of Koyo radiators, but exclusions may apply for certain models such as the Swift ZC31. Always confirm with the manufacturer's specifications or consult with a product specialist if unsure.