Moroso Racing Radiator Cap – 34-38 PSI

SKU: 63333 / UPC: 084663633331

Moroso Racing Radiator Cap, 34-38 PSI

The Moroso Racing Radiator Cap, designed for high-pressure performance in demanding racing environments. Crafted with precision in the USA since 1968, this radiator cap delivers reliable pressure control and durability for circle track and road race applications. Engineered to fit standard-size radiator filler necks, it ensures a secure seal and consistent performance under extreme conditions.

Why Choose the Moroso?

This 34-38 PSI racing radiator cap is built for racers who demand quality and performance. Its robust construction features a stainless steel spring that maintains accurate pressure settings over time without rusting, paired with a solid brass spring retainer for added reliability. The six-sided hexagon design allows for easy tightening, making it a practical choice for quick pit stops or garage maintenance. By increasing the boiling point of your coolant, this cap enhances heat transfer, helping your engine stay cool during intense racing conditions.

Key Features and Specifications

• Pressure Rating: 34-38 PSI, ideal for high-performance cooling systems.
• Material: Steel cap with a stainless steel spring and solid brass spring retainer for corrosion resistance and long-term durability.
• Design: Hexagon shape for easy installation and removal.
• Fitment: Compatible with standard-size radiator filler necks, including Moroso radiator part numbers 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, and 63745.
• Application: Designed for circle track and road race vehicles requiring high-pressure radiator caps.
• Warranty: Manufacturer’s warranty available through Moroso customer service.
• Dimensions: Length: 7.188 inches, Width: 5.375 inches, Height: 1.25 inches, Weight: 0.1 lbs.
• Part Number: SKU 63333, UPC 084663633331.

What’s Included in Your Purchase

• (1) Moroso Racing Radiator Cap, 34-38 PSI (SKU 63333).
• No additional gauges or accessories included.
• Packaged with care to ensure safe delivery.

Vehicle Fitment

The Moroso 63333 Radiator Cap is a universal fit for vehicles equipped with standard-size radiator filler necks. It is specifically designed for racing applications and is compatible with the following Moroso radiator part numbers:

• 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, 63745.

While not vehicle-specific, it suits a wide range of makes and models used in circle track and road racing, including but not limited to:

• Chevrolet: Camaro, Corvette (1968–present, racing applications).
• Ford: Mustang, Falcon (1968–present, racing applications).
• Dodge: Charger, Viper (1968–present, racing applications).
• Other Makes: Compatible with aftermarket radiators using standard-size filler necks.