Turbosmart TS-OB-04-BK AN ORB Blank Plug Fitting Black - 4

The Turbosmart TS-OB-04-BK is a high-quality -4 AN O-Ring Boss (ORB) blank plug designed for use in turbocharging and high-performance automotive applications. This precision-machined fitting provides a reliable seal for unused ports on turbochargers, wastegates, blow-off valves, and other performance components.

Key Features:

• -4 AN O-Ring Boss (ORB) thread size for secure connection
• Black anodized aluminum construction for corrosion resistance and durability
• O-ring sealing design ensures leak-free performance
• Precision CNC-machined for exact fitment and quality
• Ideal for blocking off unused ports on turbo components
• Lightweight yet strong construction suitable for high-boost applications

This blank plug fitting is an essential component for custom turbo installations, allowing you to properly seal unused ports while maintaining a clean, professional appearance. The O-ring boss design provides superior sealing compared to traditional pipe thread fittings, making it ideal for high-pressure forced induction systems.