Bulkhead Nuts Black -3 2pk

The Allstar Performance Bulkhead Nuts Black -3 2pk (ALL 50098) are precision aluminum bulkhead fitting nuts designed for high-pressure fluid systems in racing, motorsports, and performance applications. Featuring black anodized finish and -3 AN (3/16-inch) sizing, this two-pack provides the critical fastening components needed to assemble and secure bulkhead fittings in fuel lines, coolant circuits, and brake systems where vibration resistance and leak-free assembly are non-negotiable.

Built from aluminum and finished in black anodized coating, these bulkhead nuts deliver corrosion resistance and lightweight construction—critical attributes in high-temperature engine bays and corrosive environments. The -3 AN specification ensures compatibility with standard -3 AN bulkhead fittings and hose adapters, a universal sizing standard across racing and aftermarket automotive applications. The anodized finish protects against oxidation while providing a professional appearance in visible plumbing installations.

Designed for builders and technicians assembling custom fuel systems, cooling systems, and hydraulic circuits, these nuts are essential wear items when replacing worn fittings or building new system sections. The two-pack quantity accommodates typical dual-fitting installations or provides a spare set for future maintenance. Whether upgrading a street rod fuel system, installing an aftermarket radiator, or rebuilding a brake system, having correct-sized AN bulkhead nuts in stock eliminates delays and ensures proper thread engagement without cross-threading or joint leakage.

Allstar Performance is recognized throughout the racing and performance automotive community for precision-engineered fastening components and plumbing fittings that meet strict OEM and racing standards. These nuts represent the same quality standard applied across their entire AN fitting and bulkhead product line.