21in #4 Line -4 Str/-4 90 Deg 5pk

The 21in #4 Line -4 Str/-4 90 Deg 5pk from ALLSTAR PERFORMANCE is a professional-grade brake hose assembly designed for high-pressure hydraulic systems in performance vehicles, racing platforms, and heavy-duty applications. Built for operators who demand reliability under extreme conditions, this five-pack provides redundancy and flexibility for brake system routing in tight engine bays or custom installations.

Each hose measures 21 inches in length with -4 AN fittings—a military-standard connection size rated for high-pressure fluid transfer—and features braided stainless steel construction wrapped around a PTFE (polytetrafluoroethylene) inner line. The assembly pairs a -4 AN straight female connector on one end with a -4 AN 90-degree female fitting on the opposite end, allowing directional flexibility for complex brake layouts without additional elbows or adapters.

Technicians and builders benefit most from the five-pack configuration, which covers multiple brake circuits and reduces installation time on the job. The stainless braiding resists abrasion, corrosion, and thermal stress, while the PTFE core maintains compatibility with DOT-approved brake fluids and resists swelling or degradation under sustained pressure.