Radium Engineering Radiator Cap 1.1 Bar Black Trusted Brand

Description

Radium Engineering Radiator Cap 1.1 Bar Black | Enhanced Cooling Performance | Replacement Part

Overview

The Radium Engineering Radiator Cap 1.1 Bar Black is a high-quality upgrade designed specifically for Subaru enthusiasts seeking reliable cooling system performance. This premium radiator cap helps maintain optimal engine temperatures by safely increasing the coolant boiling point, which is especially beneficial during spirited driving, track days, or when pushing your Subaru’s performance limits. Crafted from durable stamped stainless steel with silicone sealing elements, this cap ensures a leak-free, long-lasting seal that surpasses traditional rubber gaskets. Its OEM-style fitment guarantees seamless integration into your upgraded cooling system, making it an ideal choice for models like the Subaru WRX STI, BRZ/86, and other compatible platforms.

Radium Engineering’s engineering philosophy emphasizes precision, durability, and performance. Their radiator caps are designed with the Subaru community in mind, combining OEM quality with enhanced features that meet the demands of high-performance driving. The 1.1 Bar pressure rating allows for a controlled increase in coolant pressure, which translates to improved heat dissipation and engine stability under demanding conditions. Whether you’re tuning for more power or simply seeking a more reliable cooling solution, this radiator cap provides peace of mind and consistent operation.

For Subaru owners focused on performance and reliability, this upgrade ensures your cooling system can handle increased boost, extended track sessions, or aggressive driving styles. By maintaining consistent engine temperatures, you reduce the risk of overheating and thermal stress, ultimately supporting your vehicle’s longevity and performance potential. Trust Subimods to provide quality Subaru-specific parts that deliver real benefits for your build and driving experience.

Features & Specifications

This Radium Engineering radiator cap is engineered for Subaru platforms such as WRX, STI, BRZ, and more, featuring a 1.1 Bar pressure rating. Constructed from stamped stainless steel, it offers exceptional durability and corrosion resistance, ensuring long-term performance. The silicone sealing elements provide a superior, leak-free seal compared to traditional rubber gaskets, enhancing reliability during high-temperature operation.

• Brand: Radium Engineering
• Product: Radiator Cap 1.1 Bar Black
• Part Number: Not specified in description
• Fitment: Subaru WRX, STI, BRZ/86, and other compatible models
• Material: Stamped stainless steel

Finish: Black coating

• Construction: CNC machined with silicone seals
• Origin: Made in the USA

• Pressure Rating: 1.1 Bar (16 psi)
• Compatibility: Upgraded cooling systems for Subaru WRX, STI, BRZ/86
• Sealing: Silicone gasket for leak-free operation
• Durability: Corrosion-resistant stainless steel

Key Benefits

• Enhanced Cooling Efficiency: Safely raises coolant boiling point, reducing overheating risks during aggressive driving or track use.
• Reliable Seal: Silicone gasket provides a leak-free, long-lasting seal that outperforms traditional rubber caps.
• Durable Construction: Made from stamped stainless steel, ensuring resistance to corrosion and physical wear.
• OEM Fitment: Seamless integration with Subaru cooling systems for a perfect, secure fit.
• Performance Stability: Maintains consistent engine temperatures, supporting tuning and power gains.
• Community-Trusted Quality: Designed by Radium Engineering, a respected name in Subaru performance parts.

What’s Included

• 1× Radium Engineering Radiator Cap 1.1 Bar Black
• Installation instructions

Installation & Compatibility

Installing the Radium Engineering Radiator Cap is straightforward and can typically be performed with basic hand tools. It’s a direct OEM replacement that fits perfectly into your Subaru’s radiator neck, making it a suitable upgrade for DIY enthusiasts and professional installers alike. No additional modifications are required, but ensure your cooling system is clean and free of debris before installation. This cap is compatible with upgraded cooling systems on Subaru WRX, STI, BRZ, and other models that utilize a similar radiator design. For optimal performance, verify fitment for your specific year and trim, especially if your vehicle has aftermarket cooling components.

While installation is generally simple, high-performance applications may benefit from a professional tune or system check to maximize cooling efficiency and ensure proper pressure regulation. Always follow manufacturer instructions for installation and maintenance to ensure long-term reliability.

Shop with confidence at Subimods—your Subaru parts specialists.