Moroso Radiator Cap 14-18 LB | 14-18 PSI Pressure Rating | Racing Radiator Cap
Overview
The Moroso Radiator Cap 14-18 LB is a precision-engineered racing radiator cap designed to maintain optimal pressure in high-performance cooling systems. Ideal for Subaru enthusiasts who demand reliable cooling under spirited driving or track conditions, this cap fits standard-size radiator filler necks and ensures your engine cooling system operates at the correct pressure to prevent overheating and coolant loss.
Built with a stainless steel spring and a solid brass spring retainer, this radiator cap reflects Moroso’s commitment to durability and consistent performance. The steel spring maintains accurate pressure settings over time, resisting fatigue and ensuring your cooling system remains sealed and efficient. The six-sided design allows for easy tightening and removal, making maintenance straightforward for Subaru owners.
Maintaining the correct pressure in your Subaru’s cooling system is critical for preventing boil-over and maximizing cooling efficiency, especially when pushing your WRX, STI, or other Subaru models hard. This 14-18 psi cap is a balanced choice that supports enhanced cooling performance without risking excessive pressure buildup, helping to preserve engine longevity and reliability.
Features & Specifications
This Moroso Radiator Cap is engineered for standard-size radiator filler necks and features a 14-18 psi pressure rating. Constructed with a stainless steel spring and solid brass spring retainer, it delivers reliable pressure control for Subaru enthusiasts seeking consistent cooling system performance.
-
Brand: Moroso
-
Product: Moroso Radiator Cap 14-18 LB
-
Part Number: 63316
-
Fitment: Standard-size radiator filler necks
-
Material: Stainless steel spring, solid brass spring retainer
-
Finish: Polished metal
-
Construction: Precision machined with six-sided cap design
-
Origin: Not specified
-
Pressure Rating: 14-18 psi
-
Compatibility: Fits Moroso radiator filler necks Nos. 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, 63745
Key Benefits
-
Performance: Maintains precise cooling system pressure to prevent overheating and coolant loss during aggressive driving
-
Durability: Stainless steel spring and solid brass retainer resist wear and maintain pressure accuracy over time
-
Fitment: Compatible with standard-size radiator filler necks and multiple Moroso radiator models for versatile application
-
Ease of Use: Six-sided cap design allows for easy tightening and removal without special tools
-
Reliability: Ensures consistent pressure control to protect Subaru engines under track or street conditions
What's Included
- 1× Moroso Radiator Cap 14-18 LB
Installation & Compatibility
Installation of the Moroso Radiator Cap 14-18 LB is straightforward and DIY-friendly, requiring no special tools beyond a standard wrench or pliers for the six-sided cap. It fits standard-size radiator filler necks, including a wide range of Moroso radiator models, making it a versatile upgrade for many Subaru cooling systems. No modifications are necessary, and it can be installed quickly to restore or improve your cooling system’s pressure management. This cap is compatible with most Subaru models that use standard radiator neck sizes but always verify fitment for your specific vehicle year and radiator type.
-
Professional Installation: DIY-Friendly
-
Modifications Required: None
-
Verify Compatibility: Confirm fitment for your specific radiator filler neck size and model
Shop with confidence at Subimods—your Subaru parts specialists.
