Coated Braided Line 21in #4Hose -4Str/-4Str Steel

The Coated Braided Line 21in #4Hose -4Str/-4Str Steel from ALLSTAR PERFORMANCE is a purpose-built hydraulic brake hose designed for high-performance automotive applications where reliability and durability are non-negotiable. This 21-inch braided hose assembly connects directly into custom brake systems, race car builds, and modified vehicles where OEM routing or specifications don't apply. Whether you're upgrading a classic hot rod, building a competition drag car, or fabricating a complete custom brake circuit, this hose provides the secure, leak-free connections required to keep your stopping power consistent under extreme conditions.

Constructed with a PTFE-lined interior and braided stainless-steel outer layer, the Coated Braided Line delivers superior fluid compatibility and resistance to degradation from heat, vibration, and corrosive brake fluid formulations. The black vinyl coating protects the braiding from abrasion and UV exposure while the 4 AN straight female fittings on both ends ensure secure, repeatable connections without adapters. PTFE lining prevents swelling and maintains consistent internal diameter over thousands of brake cycles, critical for maintaining firm pedal feel and preventing pressure loss in high-demand racing or street-strip applications. At 0.23 lbs and 21 inches in length, this hose fits tight engine bays and custom frame layouts while remaining flexible enough for complex routing around headers, superchargers, and other modifications.

This hose is ideal for fabricators, performance shops, and dedicated enthusiasts building custom or race-spec brake systems where OEM hose lengths and routing won't work. The 4 AN female-to-female configuration allows it to connect between proportioning valves, master cylinders, brake calipers, and distribution blocks without requiring additional adapters, reducing potential leak points. Installation requires basic hose crimping knowledge or professional assembly; ensure all fittings are torqued to spec and the hose is secured away from moving engine components. Compatible with DOT 3, DOT 4, and synthetic brake fluids, this ALLSTAR hose is a proven choice for street rods, circle track racers, autocross competitors, and any builder who demands precision hydraulic performance.