Cusco 00B050A13 High Pressure Radiator Cap Bar - 1.3

Raise the boiling point of your coolant for increased cooling efficiency and prevention of overheating with the Cusco High Pressure Radiator Cap. Utilizing a reinforced main pressure valve spring and high-quality silicon seals, this performance radiator cap increases the internal pressure of your cooling system, resulting in a significantly higher coolant boiling point.

How It Works:

When coolant boils, small air pockets form within the cooling system. As the coolant circulates through the engine block and radiator core, these air pockets reduce cooling efficiency and can eventually cause engine overheating. By maintaining higher system pressure, the Cusco High Pressure Radiator Cap prevents premature boiling and keeps your cooling system operating at peak efficiency.

Key Features:

• High pressure rating: 1.3 kg/cm² (18.5 PSI) at zero atmospheric pressure
• Effective operating pressure of approximately 2.3 kg/cm² (32.7 PSI) at sea level
• Reinforced main pressure valve spring for consistent pressure control
• Premium silicon seals for reliable sealing and durability
• Prevents coolant boiling and air pocket formation
• Increases cooling system efficiency under high-performance driving conditions

Ideal for racing applications, track days, or spirited driving where engine temperatures can exceed normal operating conditions. This direct replacement cap provides an affordable and effective upgrade to your vehicle's cooling system.