4AN Y-Block Single Inlet Dual Outlet

The 4AN Y-Block Single Inlet Dual Outlet is a precision hydraulic distribution fitting designed for high-performance fuel, oil, and coolant systems where flow must be split from a single source into two separate circuits. Built by REDHORSE PERFORMANCE, this component serves racing applications, custom fuel systems, and performance engine builds where reliable, leak-free distribution is critical. The Y-block configuration allows technicians to branch one pressurized line into dual outlets while maintaining full system integrity and pressure consistency.

Constructed from lightweight aluminum and finished in black anodization, the 4AN Y-Block Single Inlet Dual Outlet resists corrosion while maintaining durability under sustained pressure cycling. The aluminum body weighs just 0.08 lbs, making it ideal for weight-sensitive applications such as motorsports and aerospace-derived engine systems. All three ports accept standard 4 AN male fittings, ensuring compatibility with industry-standard hose assemblies and allowing seamless integration into existing plumbing schemes without adapter chains that reduce flow or introduce leak points.

Engine builders and fabricators benefit most from this fitting when designing dual fuel rails, split oil cooling circuits, or redundant coolant distribution for precision temperature control. The compact 2.8 × 1.1 × 3.8 inch footprint fits tight engine bay layouts without compromising access to adjacent components. Installation requires only AN wrenches and thread sealant appropriate for your fluid type; no special tools or modifications are necessary. This fitting works equally well in naturally aspirated, turbocharged, or supercharged configurations, provided the system pressure rating does not exceed the rated limit of your chosen hose and fittings.