AN Plug 3an (2pk)

The AN Plug 3AN (2pk) by EARLS is a professional-grade hydraulic fitting plug engineered for hydraulic systems, fuel lines, and high-pressure fluid transfer applications. Designed for technicians, motorsports builders, and industrial maintenance professionals, this two-pack delivers reliable port closure and protection in demanding environments where fluid integrity and pressure retention are critical. Each plug seals unused AN ports, preventing fluid loss, contamination, and air infiltration during system assembly, testing, or temporary shutdown.

Constructed from aluminum and finished in black anodized coating, the AN Plug 3AN features a hex head design that enables secure hand-tightening or wrench engagement without over-torquing. The anodized aluminum construction provides corrosion resistance while maintaining a lightweight profile ideal for weight-sensitive racing and aerospace applications. The 3AN designation indicates compatibility with standard -3 AN port sizes, ensuring proper seating and leak-free performance under operating pressures typical of fuel systems, cooling circuits, and transmission cooler lines.

This two-pack is ideal for anyone building or servicing multiple hydraulic circuits, whether in custom automotive fabrication, vintage restoration, or OEM equipment maintenance. The hex head design allows quick installation and removal without specialized tools, and the black anodized finish resists discoloration and oxidation in harsh underhood or outdoor storage conditions. Compatible with all standard -3 AN manifolds, block ports, and line terminations, these plugs are essential consumables for any shop maintaining inventory of AN system components.