12AN Push Lock Hose End Black STR

The 12AN Push Lock Hose End Black STR from Redhorse Performance is a precision-engineered fitting designed for high-performance fuel, coolant, and brake line systems in modified vehicles. Whether you're building a custom engine bay, upgrading your fuel delivery system, or installing aftermarket cooling solutions, this straight push-lock hose end provides the secure, leak-free connection demanded by serious automotive enthusiasts and professional mechanics. The 12AN size accommodates substantial flow rates, making it ideal for turbocharged engines, supercharged applications, and high-horsepower fuel injection setups where reliability is non-negotiable.

This straight fitting features Redhorse's proven push-lock design, which uses an internal O-ring seal that grips the hose securely without requiring traditional barb or crimp connections. The black anodized aluminum construction resists corrosion while maintaining a clean, professional appearance in engine bays and under-car installations. The straight orientation (STR) simplifies routing in tight spaces and allows for direct, unobstructed fluid flow—critical when managing high-pressure fuel systems or coolant bypass lines in tightly packed engine compartments. At just 0.14 lbs and compact dimensions (2.7 x 1.35 x 3.7 inches), it adds minimal weight while delivering robust performance across temperature extremes and sustained pressure cycles.

Mechanics and fabricators favor 12AN push-lock fittings for custom fuel rails, remote oil coolers, and modular cooling systems where hose flexibility and quick disconnection are advantageous. The push-lock mechanism allows for tool-free assembly and disassembly, reducing downtime during maintenance or system reconfiguration. This fitting pairs seamlessly with -12AN hose and is compatible with Redhorse and most aftermarket fuel system components, making it an essential component for any high-performance build prioritizing reliability and clean installation aesthetics.