Cusco 420009A Oil Catch Can for Mazda RX-7 FC3S

The Cusco 420009A Oil Catch Can is a vehicle-specific crankcase ventilation solution engineered to intercept blow-by gases and oil vapors before they can contaminate your intake system, intercooler piping, or throttle body. By capturing these oily vapors in a dedicated tank rather than allowing them to recirculate into the intake tract, this catch can helps maintain cleaner intake charge temperatures, preserve intake valve cleanliness, and protect against power-robbing carbon deposits.

Constructed from aluminum with Cusco's signature mirror-polished finish, this catch can is both a functional performance upgrade and a clean, professional addition to any engine bay. Unlike universal solutions that require custom fabrication, this unit is designed as a direct-fit application for precise, hassle-free installation.

Key Features:

• Captures crankcase blow-by oil vapors before they enter the intake system
• Helps prevent carbon buildup on intake valves and intercooler piping
• Mirror-polished aluminum construction for durability and visual appeal
• Vehicle-specific design for proper fitment and routing
• Supports both closed-loop (recirculating) and open (atmospheric vent) installation configurations
• Cusco OEM part number: 420 009 A

Cusco is a Japanese performance brand and division of Carrosser Co., Ltd., with a long history of producing motorsport-derived parts for street and competition use. The 420009A is a well-regarded upgrade for rotary engine owners looking to keep their intake systems clean and their engines running at peak efficiency.