SKU: MEZWF20FA
MPN: WF20FA
The MEZIERE -20AN Female Aluminum O-Ring Weld-In Bung is a precision port fitting designed for custom cooling system fabrication and high-performance engine builds. This component serves as a mounting point for auxiliary accessories—thermostatic switches, temperature sensors, or auxiliary coolant lines—on aluminum radiators, water blocks, and custom manifolds.
Manufactured from lightweight aluminum alloy, the -20AN Female Aluminum O-Ring Weld-In Bung features an integral O-ring groove that creates a reliable, leak-free seal when paired with matching -20AN male fittings and sealing rings. The weld-in design eliminates the need for mechanical clamping or complex adapter stacks; the bung is TIG-welded directly into aluminum castings, sheet, or fabricated tanks, ensuring structural permanence and eliminating vibration-induced loosening common with threaded connections.
Engine builders, fabricators, and motorsports enthusiasts benefit most from this bung when designing closed-loop cooling systems, integrating thermostatic switches, or modifying existing setups. Its compatibility with standard -20AN hose fittings and adapters makes it an essential component in performance automotive and motorsports applications.
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