SKU: 63320 | UPC: 084663633201
Moroso Racing Radiator Cap – 19-21 PSI (Universal Fit)
The Moroso Racing Radiator Cap 63320 delivers 19-21 PSI pressure to keep coolant from boiling over during high-heat racing conditions. This cap fits standard 1-5/16 inch radiator necks on most passenger cars light trucks and performance vehicles. It raises the coolant boiling point by 25-30 degrees F for reliable engine cooling under extreme loads.
Key Features
- 19-21 PSI Pressure Rating: Seals system tightly to maintain higher pressure and prevent coolant loss in racing environments
- Billet Aluminum Construction: Machined from solid aluminum for maximum strength and resistance to corrosion
- Black Anodized Finish: Provides long-lasting protection against wear and adds a sleek racing look
- Standard Neck Size: 1-5/16 inch diameter fits OEM and aftermarket radiators without adapters
- Precision Engineering: Dual seals ensure vacuum recovery and pressure retention for consistent performance
Product Notes
- Verify radiator neck diameter measures 1-5/16 inches before installation
- Clean mating surfaces for optimal seal during assembly
- Package measures 2.5 x 2.5 x 1.5 inches weighs 0.3 lbs shipped
Installation Notes
- Professional installation recommended.
- Hand tighten cap securely after filling coolant no tools required
- Compatible with all coolant types including racing fluids
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | All Models | 1-5/16″ Neck |
| 1950-2024 | Chevrolet | Camaro Corvette | All |
| 1950-2024 | Ford | Mustang F-150 | All |
| 1950-2024 | Dodge | Challenger Charger | All |
Why Choose Moroso?
- Moroso builds parts trusted in NHRA Top Fuel and Pro Stock racing
- Every cap undergoes rigorous pressure testing for reliability
- Designed by racers for track-proven cooling performance
Frequently Asked Questions
- Q: Does this cap fit my radiator?
A: Fits any radiator with 1-5/16 inch neck diameter common on most GM Ford Mopar vehicles since 1950 - Q: What material is the cap made from?
A: Billet aluminum with black anodized finish for durability and heat resistance - Q: Is installation simple?
A: Yes hand tighten after draining refilling coolant torque not needed
Shipping & Handling
- Method: UPS Ground USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box 2.5 x 2.5 x 1.5 inches
- Weight: 0.3 lbs
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