HKS Radiator Cap S-Type

Applicable to Honda (older models), Mazda (Miata, RX-7, RX-8), Mitsubishi (most models), Nissan (many models, excludes 370Z/R35), Subaru (most models, excludes BRZ), Toyota (older models) 1.1 kgf/cm2

Part #: 15009-AK006

Overview

The HKS Radiator Cap S-Type is a high-quality performance radiator cap designed to enhance the sealing and pressure regulation of your vehicle's cooling system. Engineered with both style and function in mind, this limited edition radiator cap not only looks great under the hood but also provides a more reliable seal to help maintain optimal cooling system pressure. Suitable for a variety of older model vehicles across several makes, this cap is ideal for enthusiasts seeking improved durability and performance in their cooling components.

Whether you're a daily driver, a spirited enthusiast, or involved in racing applications, the HKS S-Type Radiator Cap offers a dependable upgrade over stock caps. Its precise pressure setting ensures consistent operation during normal driving conditions and more demanding race environments, helping to prevent coolant loss and overheating issues. With its sleek design and robust construction, this radiator cap is a practical addition to any performance-oriented vehicle.

Key Features

The HKS Radiator Cap S-Type incorporates several advanced features that set it apart from standard caps:

• Constructed with high-quality silicone rubber sealing components that provide a superior, leak-proof seal under pressure.
• Set to a precise opening pressure of 108 kPa (1.1 kgf/cm2), ensuring consistent coolant system pressure regulation.
• Designed to withstand the rigors of both normal daily driving and severe racing conditions, making it suitable for a wide range of applications.
• Limited edition design adds a stylish touch to your engine bay, showcasing your commitment to performance and quality.
• Made from durable materials that resist heat, corrosion, and wear, ensuring long-lasting performance.
• Easy to install with a standard fitment for compatible vehicles, providing a straightforward upgrade without modifications.
• Helps maintain optimal coolant pressure, reducing the risk of overheating and coolant boil-over during high-stress driving scenarios.
• Compatible with a broad range of older model vehicles across multiple brands, making it a versatile upgrade for enthusiasts and racers alike.

Construction & Design

The HKS S-Type Radiator Cap features a robust construction utilizing high-grade materials designed to endure extreme engine bay conditions. Its silicone rubber seal ensures a tight, reliable fit that prevents coolant leaks and maintains consistent pressure. The cap's body is crafted from durable metal, resistant to corrosion and heat, with a sleek finish that complements the aesthetic of performance vehicles. The design emphasizes both function and style, with a compact form factor that fits standard radiator necks seamlessly. This combination of quality materials and thoughtful engineering guarantees a long service life and dependable operation under demanding conditions.

Installation & Fitment

Installing the HKS Radiator Cap S-Type is a straightforward process that requires no special tools or modifications. Simply remove your existing radiator cap and replace it with the HKS S-Type cap, ensuring it is securely tightened. Its standard fitment makes it compatible with a wide range of older model vehicles across various brands, including Honda, Mazda, Mitsubishi, Nissan, Subaru, and Toyota. No cutting, drilling, or tuning is necessary, making this an easy upgrade for both casual enthusiasts and professional racers seeking reliable performance enhancements.

• Easy bolt-on installation with no modifications required.
• Fits standard radiator necks on compatible vehicles.
• Designed for quick and secure replacement of factory caps.

What's Included

• HKS Limited Edition Radiator Cap S-Type
• Installation instructions

Ideal For

• Enthusiasts looking to upgrade their cooling system's reliability and appearance
• Racers requiring consistent pressure regulation during high-stress conditions
• Owners of older model vehicles seeking a durable, high-performance radiator cap
• Anyone wanting to prevent coolant loss and overheating issues in demanding driving environments