Vibrant Performance 10991 Low Profile ORB Port Plug -4AN, Black Anodized Aluminum

The Vibrant Performance 10991 Low Profile ORB Port Plug is designed to seal -4AN O-ring boss ports in high-performance automotive, racing, and custom plumbing applications. Its compact low-profile design helps provide a clean installation where space is limited, while the integrated O-ring sealing style supports a dependable connection without the need for thread sealant. This plug is supplied as an individual fitting for convenient replacement or system assembly.
Manufactured from lightweight aluminum, the Vibrant Performance 10991 features a durable black anodized finish that provides a professional appearance and added surface protection. The Allen-head design allows for straightforward installation and removal with the appropriate hex key, making it practical for serviceable fuel, oil, coolant, and other compatible fluid systems. Always confirm port compatibility and sealing requirements before installation.
Whether used to close an unused outlet, finish a manifold, or complete a custom hose and fitting layout, this -4AN O-ring boss plug offers a reliable and space-conscious solution. The Vibrant Performance brand is recognized for precision-engineered components used in demanding motorsports and performance applications. The 10991 plug is not air restricted and is not designated for truck freight shipping.

Features:

• Brand: Vibrant Performance

• Part Number: 10991

• Fitting Type: Low-profile O-ring boss port plug

• Port Size: -4AN

• Material: Lightweight aluminum

• Finish: Black anodized

• Drive Type: Allen head

• Sealing Method: O-ring boss connection

• Application: Seals unused -4AN ORB ports in compatible automotive and performance plumbing systems

• Air Restricted: No

• Truck Freight Only: No