#12 Male Weld Fitting

The #12 Male Weld Fitting from EARLS is a precision aluminum bung engineered for high-performance fluid systems requiring secure, permanent connections. Designed for welding applications, this fitting serves hydraulic lines, fuel systems, and coolant circuits in racing, industrial, and custom automotive builds where reliability and leak-free operation are non-negotiable. The weld-on design eliminates the need for threaded installation, making it ideal for fabricators and technicians who prioritize structural integrity over removable connections.

This male weld fitting features a #12 AN (Army-Navy) port size, a standard across motorsport and hydraulic applications that ensures compatibility with industry-standard hoses and adapters. Constructed from lightweight aluminum in natural finish, the fitting delivers excellent strength-to-weight ratio while resisting corrosion in demanding environments. The welded joint creates a permanent, vibration-resistant seal superior to threaded connections in high-cycle applications, making it the preferred choice for racing fuel systems and custom fabrication where system pressures and thermal cycling demand absolute reliability.

Mechanics, fabricators, and motorsport builders benefit most from this fitting when constructing or modifying fuel delivery, brake, or cooling systems on race cars, performance trucks, and custom machinery. Installation requires welding to a compatible aluminum or steel substrate—professional welding expertise ensures longevity and safety. The compact form factor (1.4 x 1.35 x 2.9 inches) accommodates space-constrained engine bays and custom manifolds, while the lightweight construction (0.06 lbs) contributes meaningfully to vehicle weight reduction in competitive applications.