Brake Fitting w/Tab #3-3/16in Bulkhead

The Brake Fitting w/Tab #3-3/16in Bulkhead by Longacre (MPN 52-45286) is a precision hardline brake adapter engineered for custom and high-performance vehicle builds where clean, professional plumbing is essential. This bulkhead fitting serves as the critical junction point where brake hardline transitions through a frame rail or firewall, eliminating unsightly external routing and protecting fluid lines from damage, abrasion, and contamination. Fabricators, race teams, and serious enthusiasts rely on bulkhead fittings to achieve OEM-level aesthetics while maintaining full system integrity under demanding conditions.

This straight-configuration adapter features a 3/8-24 inch inverted flare male connection on one end and a 3 AN male bulkhead port on the other, making it compatible with both classic inverted flare hardline and modern AN-spec brake systems. The aluminum construction with red anodize finish provides corrosion resistance while maintaining visibility in engine bays or frame cavities; the integrated frame tab allows secure, vibration-free mounting that prevents stress concentrations at the fitting itself. The 3/16-inch hardline compatibility and compact footprint (4.2 x 1.4 x 5.55 inches) make this fitting ideal for tight installation spaces where traditional external routing is impractical or visually unacceptable.

Builders of custom hot rods, street performance cars, and track vehicles benefit most from this fitting when designing dual-circuit or proportioned brake systems that demand professional-grade line management. Installation requires careful hardline pre-bending to maintain proper angles at the bulkhead; the frame tab design minimizes the risk of hydraulic line fatigue and leakage common in poorly supported applications. Verify inverted flare and 3 AN compatibility with your specific master cylinder, proportioning valve, and hard-piping before ordering to ensure seamless integration into your custom brake system.