12an Male to 3/4in Hose Barb Str. Fitting Black

The 12 AN Male to 3/4 in Hose Barb Straight Fitting in black from REDHORSE PERFORMANCE is an essential connector for modern fuel, oil, coolant, and hydraulic system modifications. This adapter bridges the gap between industry-standard AN thread ports and rubber or reinforced hose applications, making it indispensable for custom fuel rails, turbo plumbing, transmission coolers, and aftermarket cooling loops. Whether you're building a high-performance engine bay or upgrading factory fluid delivery systems, this straight barb fitting ensures leak-free connections under sustained pressure and temperature cycles.

The fitting features a machined 12 AN male thread on one end—compatible with metric-equivalent 1.5mm pitch adapters, fuel pressure regulators, and manifold ports—and a 3/4 inch barbed outlet engineered to grip hose securely without requiring constant hose clamp tension. The straight design minimizes flow turbulence and reduces pressure losses compared to 90-degree elbows, critical for precision fuel delivery and oil pressure circuits. The black anodized aluminum construction resists corrosion in engine bay environments while remaining lightweight; the compact 2.835 x 1.405 x 4.423 inch footprint fits tight engine bay layouts typical of LS swaps, turbocharged conversions, and custom fuel system installs.

This fitting serves professional tuners, engine builders, and DIY enthusiasts upgrading fuel systems, radiator hoses, or auxiliary cooling circuits on street and track vehicles. Its 3/4 inch barb diameter matches common 3/4 inch ID (inner diameter) hose sizes found in high-flow applications, ensuring reliable slip-fit assembly with standard hose clamps rated for fuel or coolant service. Installation requires no special tools—simply push the barb into your prepared hose until seated, then double-clamp with worm-gear or band clamps torqued to manufacturer specs for your fluid type, pressure rating, and hose material to guarantee safety and longevity.