1/4in Brake Line 40in Stainless Steel

The ALLSTAR PERFORMANCE 1/4in Brake Line 40in Stainless Steel (ALL 48314) is a precision hydraulic brake hard line engineered for high-performance automotive applications requiring corrosion-resistant construction. This stainless steel brake line delivers the pressure integrity and durability demanded in custom hot rods, race cars, and high-end street machines where reliability under sustained braking loads is non-negotiable.

Measuring 40 inches in length with a 1/4-inch diameter bore, this hard line accommodates 7/16-24 inch flare nut connections—the industry-standard coupling for automotive brake systems. Stainless steel construction resists rust, corrosion, and brake fluid degradation far better than mild steel alternatives, extending the service life of the entire brake system. The natural finish accepts paint or protective coating without preparation. Hard lines of this specification are sized to handle the volume and pressure requirements of modern brake master cylinders and proportioning valves, ensuring consistent pedal feel and stopping performance across repeated heat cycles.

Buyers choosing this brake line are typically fabricating custom brake runs in restoration projects, competition vehicles, or custom builds where OEM routing or materials are not suitable. The 40-inch length supports flexible routing from engine bay to rear axle locations, and the stainless material is mandatory in salt-air environments, marine applications, or where galvanic isolation from dissimilar metals is required. Paired with proper fittings and system pressure testing, this line provides the foundation for a brake system engineered to specification rather than assembled from compromise parts.