Tube to Male AN Adapter 1/4in Tube OD to -4AN

The Tube to Male AN Adapter 1/4in Tube OD to -4AN from VIBRANT PERFORMANCE is an essential fitting for high-performance fuel, oil, and coolant system modifications. This adapter bridges 1/4-inch tube connections to industry-standard -4AN male ports, making it indispensable for custom fuel injection systems, turbo plumbing, oil cooler installations, and competitive motorsports builds. Whether you're upgrading a street rod fuel system or engineering a purpose-built track engine, this compact yet robust adapter delivers reliable flow routing without compromise.

Manufactured by VIBRANT PERFORMANCE, a trusted name in race-proven hydraulic and pneumatic components, this tube-to-AN adapter features precision machining and professional-grade materials that withstand demanding fuel pressures and thermal cycling. The -4AN (1/4-inch AN) standard ensures compatibility with quality hose and fittings across the motorsports and performance aftermarket industries. The 1/4-inch tube outer diameter (OD) accommodates standard automotive tubing found in OEM fuel lines and custom hardline fabrication, while the male AN connection accepts industry-standard -4AN female hose ends and port fittings without modification.

This adapter is ideal for builders and mechanics upgrading fuel delivery systems, adding auxiliary cooling loops, or integrating aftermarket gauges and sensors requiring AN-port connections. Common applications include fuel pressure regulators, fuel filter housings, oil cooler inlet/outlet connections, and turbocharger feed and return lines. The lightweight design (0.03 lbs) and compact footprint (3.54 x 0.5 x 6.3 inches) allow seamless integration into tight engine bay layouts. Installation requires only basic wrenching skills and compatible -4AN hose with female swage fittings on one end and tube-compatible clamps or compression fittings on the other. For safety-critical fuel system work, always verify line pressure ratings and follow OEM or professional tuning guidelines.