Brake Line Adapter -3 to 3/16 Inv Flare

The ALLSTAR PERFORMANCE Brake Line Adapter -3 to 3/16 Inverted Flare is a precision hydraulic fitting designed to connect brake systems with different port configurations. This aluminum adapter converts a -3 AN male port to a 3/8-24 inch inverted flare male fitting, enabling compatibility between modern braided brake lines and classic inverted flare systems commonly found in vintage race cars, classic muscle vehicles, and restoration projects.

Machined from aluminum and finished in black anodize, this adapter combines lightweight construction with corrosion resistance—critical for vehicles exposed to moisture, salt air, or extended storage. The inverted flare design creates a metal-to-metal seal under brake pressure, eliminating the need for sealing compounds and ensuring consistent hydraulic integrity across multiple brake system generations. The -3 AN (3/16-inch) sizing is standard across modern aftermarket brake line systems, making this adapter a go-to solution for engine bay routing and brake component upgrades.

This fitting serves bracket builders, restoration shops, and performance enthusiasts who need to mate newer braided brake systems to original equipment or non-standard brake caliper ports. Common applications include street rod builds, classic car restorations, custom brake balance valve installations, and brake line rerouting during engine swaps. A single adapter, measuring 3.5 inches in length and weighing just 0.05 lbs, streamlines brake system design without compromising hydraulic performance or safety margins.