Cusco Radiator Cooling Plate

2011–2025 Mazda RX-8 NB6/NB8 1.3L Rotary

Part #: 427 003 AL

Overview

The Cusco Radiator Cooling Plate is a high-performance accessory designed specifically for the Mazda RX-8 NB6 and NB8 models. Engineered to optimize airflow within the engine bay, this cooling plate helps direct air efficiently to the radiator, ensuring consistent engine temperatures even during spirited driving or racing conditions. Whether you're a performance enthusiast or a dedicated racer, this component enhances your vehicle's cooling capabilities and adds a sleek, high-performance aesthetic to your engine compartment.

Proper airflow management is crucial for maintaining optimal engine temperatures, especially in high-stress environments. The Cusco cooling plate is crafted to improve airflow dynamics, helping to prevent overheating and supporting the longevity and reliability of your rotary engine. Its durable construction and precise fitment make it an excellent upgrade for those seeking both functional performance and a refined appearance.

Key Features

The Cusco Radiator Cooling Plate offers a combination of innovative design and durable materials to enhance your Mazda RX-8’s cooling system. Key features include:

• Precisely engineered to channel airflow directly to the radiator, improving cooling efficiency over factory covers.
• Constructed from high-quality, lightweight aluminum that resists corrosion and withstands high temperatures.
• Designed with a sleek, high-performance appearance that complements the engine bay aesthetic.
• Easy bolt-on installation with no modifications required, making it suitable for both daily drivers and race applications.
• Helps maintain consistent engine temperatures during high-performance driving, reducing the risk of overheating.
• Colorful finish adds a sporty look to the engine compartment, enhancing visual appeal.

Construction & Design

The Cusco Radiator Cooling Plate is crafted from durable aluminum, chosen for its excellent thermal conductivity and lightweight properties. Its design features precise CNC machining to ensure a perfect fit on the Mazda RX-8 NB6/NB8 models. The plate's structure effectively directs airflow toward the radiator, helping to maximize cooling performance. Its high-quality finish not only provides corrosion resistance but also adds a refined, high-performance look to your engine bay. The design incorporates functional airflow channels that improve heat dissipation, supporting the engine's cooling system during demanding driving conditions.

Performance & Sound

By improving airflow to the radiator, this cooling plate helps support the engine's cooling efficiency, especially during high-revving or racing scenarios. While it does not directly increase horsepower, maintaining optimal engine temperatures ensures consistent performance and reliability. The enhanced airflow can contribute to more stable engine operation and potentially better overall performance under stress. The plate's design also adds a subtle, sporty aesthetic to the engine bay, complementing the high-performance nature of your Mazda RX-8.

Installation & Fitment

The Cusco Radiator Cooling Plate is a straightforward bolt-on upgrade that requires no cutting, drilling, or complex modifications. It mounts directly onto the factory radiator support using existing mounting points, ensuring a secure and precise fit. The installation process is simple and can typically be completed with basic hand tools, making it accessible for enthusiasts and professional installers alike. No tuning or additional adjustments are necessary, allowing you to quickly enhance your vehicle's cooling system with minimal effort.

What's Included

• Complete radiator cooling plate assembly
• All necessary mounting hardware and fasteners
• Installation instructions

Ideal For

• Mazda RX-8 owners seeking improved engine cooling performance
• Performance enthusiasts and racers looking to optimize airflow in the engine bay
• Anyone wanting to add a high-performance, sporty appearance to their engine compartment

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all regions. Please check local regulations before installation.