Bluesky FRG-481408BL #8 Port Plug Fitting 3/4"-16 UNF Black

The Bluesky FRG-481408BL is a #8 port plug fitting designed to seal and block off unused or open ports in automotive air conditioning systems. Featuring a standard 3/4"-16 UNF thread — the industry-standard thread pitch for #8 (1/2" nominal) AC line fittings — this plug provides a leak-free seal to keep refrigerant circuits closed during service, storage, or system modification.

Key Features:

• #8 AN/SAE size port plug for automotive and heavy-duty AC systems
• 3/4"-16 UNF male thread — standard thread for #8 refrigerant line fittings
• Black anodized aluminum construction for corrosion resistance and durability
• Hex head socket drive for easy installation and removal with standard tools
• Includes O-ring seal for a reliable, leak-proof fit on O-ring boss (ORB) style ports
• Compatible with R-134a, R-1234yf, and other common automotive refrigerants

The FRG-481408BL port plug is ideal for capping open compressor ports, manifold ports, or hose ends during AC system repairs, bench testing, or component storage. The black finish blends cleanly into engine bay installations.