Weekend Sale Chase Bays Radiator Cap Type A (1.37bar / 20psi) 2002-2021 WRX / 2002-2021 STI

Description

Chase Bays Radiator Cap Type A (1.37bar / 20psi) 2002-2021 WRX / 2002-2021 STI | Cooling System Upgrade | Maintenance Part

Overview

The Chase Bays Radiator Cap Type A is a high-quality upgrade designed specifically for Subaru WRX and STI models from 2002 to 2021. This premium radiator cap enhances your vehicle’s cooling system by safely increasing the coolant’s boiling point, which helps maintain optimal engine temperatures during aggressive driving, spirited canyon runs, or track days. Proper cooling is essential for Subaru owners who push their cars hard, whether on the street or on the race track, and this cap provides a reliable way to improve cooling efficiency without sacrificing durability.

Built with a focus on durability and performance, Chase Bays engineered this radiator cap from stamped stainless steel, ensuring long-lasting resistance to corrosion and heat. The 1.37bar (20psi) spring pressure prevents premature coolant overflow and reduces cavitation at the water pump, contributing to a more stable cooling system. The silicone sealing elements outperform traditional rubber gaskets, providing a superior, reliable seal that maintains consistent pressure and prevents leaks over time. This thoughtful design makes it a smart upgrade for Subaru enthusiasts seeking a dependable component that supports both daily driving and high-performance applications.

By upgrading to this radiator cap, Subaru owners can enjoy improved cooling stability, which translates into better engine safety, especially during high-boost tuning or extended track sessions. Maintaining proper coolant pressure and preventing air pockets helps your WRX or STI run cooler and more efficiently, ultimately supporting increased power potential and engine longevity. Whether you’re building a tuned daily driver or a dedicated track car, this radiator cap is a straightforward upgrade that delivers tangible benefits for your Subaru’s cooling system.

Features & Specifications

This Chase Bays Radiator Cap is engineered for Subaru WRX and STI models spanning 2002-2021 and features a 1.37bar (20psi) spring pressure. Constructed from durable stamped stainless steel, it offers superior corrosion resistance and long-term reliability for demanding driving conditions.

• Brand: Chase Bays
• Product: Radiator Cap Type A (1.37bar / 20psi) 2002-2021 WRX / 2002-2021 STI
• Part Number: Not specified
• Fitment: Subaru WRX and STI (2002-2021)
• Material: Stamped stainless steel
• Finish: Natural stainless steel
• Construction: CNC-machined stamped steel with silicone seals
• Origin: Designed and manufactured by Chase Bays

Key Benefits

• Enhanced Cooling Efficiency: Increases coolant boiling point, helping your Subaru stay cooler during aggressive driving or track use.
• Reliable Seal & Durability: Silicone seals and stainless steel construction ensure long-lasting performance and leak prevention.
• Improved Engine Safety: Maintains proper coolant pressure, reducing cavitation and air pocket formation at the water pump.
• Easy Upgrade: Straightforward bolt-on installation compatible with a wide range of Subaru models from 2002-2021.
• Support for Tuning & Performance: Keeps cooling consistent under increased boost, supporting power upgrades and tuning efforts.

What’s Included

• 1× Chase Bays Radiator Cap Type A (1.37bar / 20psi)
• Installation instructions

Installation & Compatibility

This radiator cap is designed for easy, bolt-on installation and is suitable for DIY enthusiasts with basic mechanical skills. No special tools are required beyond standard hand tools. It fits all Subaru WRX and STI models from 2002 through 2021 that use a compatible radiator cap size. For optimal performance, ensure your cooling system is clean and in good condition before installation. While the cap is a direct replacement, verifying your vehicle’s specific radiator cap size and pressure rating is recommended to ensure proper fitment.

For high-boost or tuned applications, maintaining proper cooling pressure is critical. This cap helps support increased coolant pressure safely, but tuning adjustments or additional cooling modifications may be necessary for maximum performance. If unsure about compatibility or installation, professional installation is always recommended to ensure proper sealing and function.

Shop with confidence at Subimods—your Subaru parts specialists.