Coated Braided Line 48in #4 Hose -4 Str/-4 Str

The Coated Braided Line 48in #4 Hose with 4 AN Straight Female to 4 AN Straight Female connections is engineered for high-performance automotive hydraulic systems where reliability and safety are non-negotiable. Whether you're building a custom brake circuit, upgrading a racing transmission cooler line, or installing a power steering upgrade, this 48-inch hose assembly delivers the durability and precision fit that serious mechanics and performance enthusiasts demand. The straight-to-straight configuration eliminates unnecessary bends and potential leak points, making installation straightforward on custom chassis and modified vehicles.

Built by ALLSTAR PERFORMANCE, this hose combines a braided stainless steel core with black vinyl outer coating and PTFE (polytetrafluoroethylene) inner lining—a proven specification in motorsports and street performance applications. The PTFE lining provides chemical resistance to modern brake fluids (DOT 3, 4, and 5.1) while maintaining flex and durability under repeated thermal cycling. The woven stainless steel braid handles high-pressure peaks typical of racing brake systems and transmission coolers, while the vinyl jacket protects against abrasion, UV damage, and fluid seepage. At 0.36 lbs and measuring 48 inches end-to-end, it's lightweight yet robust enough for competition-grade hydraulic circuits.

This hose is ideal for fabricators, drag racers, road course competitors, and street-performance builders working with custom brake bias proportioning, remote fluid reservoirs, or aftermarket cooling systems. The #4 AN (1/4-inch nominal) size fits mid-range flow applications—larger than -3 but smaller than -6 lines, making it the sweet spot for dual-caliper upgrades and auxiliary cooling circuits. Direct female-to-female AN connections ensure leak-free unions when mated to banjo fittings or AN male adapters on your components. Before installation, verify your system pressure rating and ensure all connections are properly torqued; ALLSTAR hose assemblies are designed to withstand sustained pressure without ballooning or separation.