9in #4 Line -4 Str/-4 90 Deg Tube Style

The 9in #4 Line -4 Str/-4 90 Deg Tube Style brake hose from ALLSTAR PERFORMANCE is an essential component for custom brake system fabrication and high-performance vehicle builds. Designed for serious enthusiasts and professional mechanics, this hose bridges the gap between straight and angled port configurations in modern brake circuits. Whether you're upgrading a street rod, relocating hard lines on a race engine bay, or engineering a custom hydraulic brake layout, this adapter hose accommodates the plumbing challenges that arise when OEM configurations won't fit your vision.

This hose features a 9-inch working length with 4 AN (5/16") port sizing on both ends—one straight female and one 90-degree female—allowing directional flexibility without the need for separate adapters or restrictive fittings. The braided stainless steel outer jacket provides durability against abrasion, thermal stress, and corrosion in engine compartments, while the PTFE (Teflon) inner lining ensures brake fluid compatibility and consistent pressure delivery without degradation. The tube-style construction maintains structural integrity under load cycles typical of performance braking, making it far superior to unbraided rubber hose for high-pressure applications. The compact 0.15 lbs weight and minimal footprint make routing through tight underhood spaces straightforward.

This hose is ideal for fabricators working on custom brake line runs, turbo or supercharger installations where stock plumbing is relocated, and any brake system where port angles don't align naturally. The combination of straight and 90-degree terminations eliminates the need for secondary elbows, reducing leak points and improving system cleanliness. Compatible with all 4 AN brake circuits and hydraulic lines, it suits DOT-approved street applications as well as track use. Always ensure proper support clipping along the hose run to prevent vibration-induced chafing, and torque 4 AN fittings to 25 ft-lbs for secure, leak-free connections.