Type-A Radiator Cap, 1.3 BAR (18.9 PSI)

Nuke Performance Type-A Radiator Cap 1.3 BAR — Performance Cooling System Cap

The Type-A Radiator Cap 1.3 BAR (SKU 452-01-013) is a mid-range pressure option in the Nuke Performance radiator cap range, rated at 1.3 BAR (18.9 PSI). This pressure level is commonly specified for performance and lightly modified engines where a moderate increase in system pressure above the OEM 1.1 BAR standard provides improved coolant boiling margin without stressing standard-spec hoses and components.

Benefits of Moderately Increased Cooling System Pressure

Raising the cooling system operating pressure above OEM specification increases the boiling point of the coolant, providing useful additional margin in demanding conditions — extended high-speed driving, track use, and hot ambient temperatures. The 1.3 BAR rating is a popular choice for performance road cars and circuit track day vehicles in Scandinavia, where cooling demand during extended track sessions can approach the limits of a standard 1.1 BAR system.

Key Features

• 1.3 BAR (18.9 PSI) pressure rating — moderate increase above OEM standard
• Type-A format — compatible with Nuke Performance coolant expansion tanks
• Increases coolant boiling margin for demanding performance applications
• Professional quality construction for motorsport and performance road use
• Genuine Nuke Performance coolant system component

Pressure Rating Selection

Also available at 1.1 BAR (SKU 452-01-011), 1.5 BAR (SKU 452-01-015), and 2.0 BAR (SKU 452-01-020). Always ensure the selected cap pressure does not exceed the pressure tolerance of other cooling system components. Available from Arctic Performance Parts for customers in Norway, Sweden, and Denmark.