42in #4 Line -4 Str/-4 90 Deg

The 42in #4 Line -4 Str/-4 90 Deg brake hose from ALLSTAR PERFORMANCE is engineered for custom and high-performance automotive brake systems where precision routing and durability are non-negotiable. Built for engine bay configurations that demand both straight and 90-degree female connections, this 42-inch hose accommodates tight spaces and complex brake line layouts common in engine swaps, chassis modifications, and competition vehicles. Whether you're upgrading a street rod, race car, or custom build, this hose delivers the reliability needed when OEM routing won't work.

Constructed with PTFE (polytetrafluoroethylene) inner lining and braided stainless steel reinforcement, the 42in #4 Line -4 Str/-4 90 Deg resists fluid degradation, temperature fluctuations, and abrasion that plague rubber hoses under sustained pressure. The 4 AN (AN4) port size—a industry-standard in high-flow brake and fuel applications—provides consistent flow rates and leak-free connections when paired with matching AN fittings. The dual-ended design (4 AN straight female to 4 AN 90-degree female) eliminates the need for separate adapters, reducing connection points and potential failure sources in your brake circuit. Each hose weighs only 0.32 lbs and measures 42 inches, allowing flexible routing while maintaining structural integrity under braking stress.

Mechanics and fabricators specializing in custom brake systems, motorsports, and vintage restorations rely on this configuration for master cylinder-to-proportioning valve or caliper-mounted applications where standard routing is impossible. The stainless-braided construction resists corrosion in underhood environments, while the PTFE lining prevents brake fluid from attacking the hose from within—critical for long-term reliability in modified vehicles. Ensure your brake line connections use matching 4 AN female fittings and test the system under load before aggressive driving to confirm proper pressure delivery and zero leakage at all connection points.