Attwood Mercury Twist-Lock Female Tank Fitting - Zinc

The Attwood Mercury Twist-Lock Female Tank Fitting in zinc is a critical fuel system connector engineered for marine and automotive fuel tank installations where vibration-resistant, leak-free performance is non-negotiable. This fitting serves as the female receptacle component in quick-disconnect fuel coupling systems, allowing technicians and boat owners to safely connect and disconnect fuel lines without spillage or air ingestion. Whether you're servicing a Mercury marine engine, integrating aftermarket fuel systems, or performing fuel tank maintenance, this twist-lock fitting provides the mechanical reliability that separates professional-grade work from amateur installations.

Constructed from zinc-plated steel, the Attwood Mercury Twist-Lock Female Tank Fitting (MPN 14530-6) resists corrosion in high-moisture environments while maintaining dimensional stability under repeated connect-disconnect cycles. The twist-lock mechanism employs a bayonet-style engagement that requires minimal rotational force—typically 90 degrees—to seat and lock securely, preventing accidental disconnection during operation or rough handling. The female tank-side design interfaces with compatible male quick-disconnect couplers, creating a sealed joint that eliminates fuel leakage and vapor escape, critical for both environmental compliance and operator safety. The zinc finish provides superior corrosion protection compared to bare steel, extending service life in saltwater or high-humidity storage conditions.

This fitting is ideal for Mercury outboard engines, inboard fuel systems, portable tank connections, and custom fuel system builds where quick-disconnect convenience meets fail-safe locking. Mechanics and marine technicians rely on Attwood twist-lock fittings for fuel system servicing, tank replacement, and winterization procedures that demand frequent disconnection without system compromise. Installation requires matching the fitting to the tank opening thread size and pairing it with the corresponding Attwood male coupler—verify thread compatibility before ordering. At approximately 1 lb, the fitting adds minimal weight while providing the structural integrity and corrosion resistance required for long-term marine fuel system service.