Cusco Oil Catch Tank

1994–1997 Mazda Miata NA6/NA8 JDM Chassis Only 1.6L / 1.8L

Part #: 404 009 AN

Overview

The Cusco Oil Catch Tank is a high-quality aftermarket component designed specifically for Mazda Miata NA6 and NA8 models from 1994 to 1997. This oil catch can plays a crucial role in maintaining engine health by trapping harmful blow-by gases that can otherwise compromise performance and reduce horsepower. When installed inline with the crankcase PCV (Positive Crankcase Ventilation) system, it effectively captures the oil and gasoline vapor mixture that escapes past piston rings and valve seals, preventing it from re-entering the intake manifold.

Perfect for enthusiasts who seek to optimize their Miata's engine performance and longevity, the Cusco Oil Catch Tank helps keep the intake system clean and free of oil buildup. This not only supports consistent engine operation but also contributes to improved throttle response and overall driving experience. Whether you're a daily driver or a spirited track enthusiast, this catch can is an essential upgrade for maintaining peak engine efficiency.

Key Features

The Cusco Oil Catch Tank is engineered with precision and durability in mind, utilizing high-quality materials and thoughtful design to ensure reliable performance under demanding conditions. Key features include:

• Constructed from durable, lightweight aluminum to withstand engine heat and resist corrosion, ensuring long-lasting performance.
• Compact, JDM-specific design tailored for Mazda Miata NA6/NA8 chassis, fitting seamlessly into the engine bay without interference.
• Easy installation with direct bolt-on mounting points, requiring no modifications to the vehicle.
• Effective separation of oil and vapor, reducing oil carryover into the intake system and helping maintain optimal air-fuel mixture.
• Clear, high-quality fittings and hoses for secure connections and leak-free operation.
• Designed to trap blow-by gases efficiently, supporting cleaner emissions and engine health.
• Enhances engine bay aesthetics with a sleek, performance-oriented look.

Construction & Design

The Cusco Oil Catch Tank features a robust aluminum body with a precision-machined finish, ensuring durability and heat resistance. Its compact, JDM-specific design allows for a clean installation within the tight confines of the Mazda Miata NA chassis. The unit incorporates a high-quality internal baffle system that maximizes separation efficiency, preventing oil from escaping into the intake system. The fittings and hoses are crafted from premium materials to withstand the rigors of engine bay conditions, providing a secure and leak-proof connection. Overall, the design emphasizes reliability, ease of installation, and minimal maintenance, making it an ideal upgrade for performance-minded drivers.

Performance & Benefits

By installing the Cusco Oil Catch Tank, you help support your Mazda Miata's engine performance by reducing oil contamination in the intake system. This can lead to more consistent combustion, improved throttle response, and potentially increased horsepower and torque over time. Additionally, keeping blow-by gases out of the intake helps maintain cleaner intake valves and runners, which can reduce carbon buildup and improve long-term engine reliability. The catch can also contribute to lower emissions by trapping harmful vapors before they escape into the atmosphere.

Installation & Fitment

The Cusco Oil Catch Tank is designed as a direct bolt-on upgrade for Mazda Miata NA6 and NA8 models from 1994 to 1997. Installation is straightforward, requiring no cutting, drilling, or complex modifications. It mounts securely to existing factory points and connects inline with the factory PCV system using included fittings and hoses. The process typically involves removing the existing valve cover vent hose and replacing it with the catch can assembly. No tuning or additional adjustments are necessary, making it an accessible upgrade for DIY enthusiasts and professional installers alike.

• Easy, bolt-on installation with basic hand tools
• No cutting or drilling required
• Compatible with factory PCV system

What's Included

• Cusco Oil Catch Tank assembly
• High-quality hoses and fittings
• Mounting hardware and brackets
• Installation instructions

Ideal For

• Mazda Miata NA6/NA8 owners seeking to improve engine longevity and performance
• Enthusiasts looking to keep their intake system clean and free of oil buildup
• Performance drivers who want a reliable, JDM-specific oil catch can
• DIYers and professional mechanics installing a maintenance upgrade

Emissions Note

This Cusco Oil Catch Tank is designed to work with the factory emissions system and helps support cleaner engine operation. It is intended for off-road or racing use only and may not be legal for street use in all regions. Please check local regulations before installation.