AN Weld Bung 20AN Male Aluminum

The AN Weld Bung 20AN Male Aluminum by Allstar Performance is an essential component for custom fuel system builds and high-performance engine modifications. This weld bung serves as a port or mounting point in aluminum fuel rails, tanks, and manifolds where you need a permanent, leak-free connection. Whether you're fabricating a custom fuel delivery system, installing fuel pressure sensors, or adding supply/return lines to a modified engine bay, this 20AN male adapter provides the structural integrity and compatibility required in professional-grade automotive applications.

Constructed from aluminum alloy, the AN Weld Bung 20AN Male features a 20AN thread size—the industry standard for high-flow fuel systems in racing and performance vehicles. The male threading design allows it to accept AN-spec hose fittings, adapters, and distribution blocks without additional adapters, creating streamlined connections that reduce turbulence and pressure drop. The welding design means you're not relying on threaded holes or secondary fasteners; instead, you're achieving a permanent bond that handles vibration, thermal cycling, and pressure spikes inherent to forced induction and nitrous oxide applications.

This bung is ideal for fabricators, engine builders, and enthusiasts who are designing fuel rails, constructing custom manifolds, or modifying aluminum fuel tanks for turbocharged, supercharged, or naturally aspirated performance engines. Installation requires welding into the aluminum substrate—TIG welding is recommended to maintain material integrity and prevent heat distortion. Allstar Performance's engineering ensures compatibility with standard AN fittings and hose sizes, making it the go-to choice for serious motorsports builds where reliability and flow efficiency directly impact power output.