Bulkhead Nut 4an (2pk)

The Bulkhead Nut 4AN (2pk) from EARLS is a precision-engineered hydraulic fitting component designed for automotive and industrial applications. This two-pack of aluminum bulkhead nuts is essential for creating reliable sealing interfaces in AN (Army-Navy) threaded connections commonly used in fuel systems, coolant lines, and brake circuits.

Constructed from aluminum and finished with a black anodized coating, the Bulkhead Nut 4AN combines light weight with corrosion resistance. The anodized surface enhances grip and provides a professional appearance in engine bays and visible installations. These nuts thread onto 4AN male fittings and seat against hose barbs or adapter bodies to create a secure, pressure-tight connection.

Professionals and enthusiasts working with custom plumbing, turbocharged fuel injection, high-flow cooling systems, and competition vehicles rely on EARLS fittings for consistent performance. The two-pack format is ideal for dual-line configurations or building complete fuel and coolant loop assemblies where multiple connection points demand matched components.