120in #3 Line -4 Str/-4 Str

The 120in #3 Line -4 Str/-4 Str brake hose from Allstar Performance is engineered for high-pressure hydraulic brake systems where durability, reliability, and precise fitment are non-negotiable. Built to military and law enforcement standards, this hose delivers the consistent pressure control essential in tactical vehicles, armored platforms, and heavy-duty applications where brake failure is not an option. The 120-inch length accommodates complex routing in custom builds, race vehicles, and specialty platforms requiring extended brake line runs without mid-line connectors that introduce failure points.

This brake hose features a braided stainless steel exterior with PTFE (polytetrafluoroethylene) lining, a combination proven in demanding environments where corrosion resistance and thermal stability are critical. The #3 hose diameter (AN-3) paired with -4 AN straight female fittings at both ends ensures proper flow rates and pressure containment while maintaining compatibility with standard AN hydraulic systems. PTFE lining prevents fluid degradation and swelling from extended exposure to brake fluid, mineral contaminants, and temperature extremes—critical factors in vehicles subjected to intense braking cycles, prolonged idle in harsh climates, or extended deployment. Stainless steel braiding protects against abrasion, puncture, and external environmental damage while maintaining flexibility for tight routing around engine bays and suspension geometry.

Tactical operators, fleet maintenance technicians, and custom builders benefit most from this hose when retrofitting or upgrading brake systems in vehicles where OEM hoses are undersized or prone to failure. The straight female-to-female configuration allows seamless integration into existing brake manifolds and proportioning valve assemblies without adapter complexity. Installation is straightforward: route the 120-inch length to avoid pinch points, ensure fittings are torqued to manufacturer specifications, and bleed the system thoroughly. Compatible with DOT 3, DOT 4, and DOT 5 brake fluids, this hose is ideal for platforms ranging from light tactical trucks to heavy-armor vehicles requiring fail-safe brake performance.