45 Deg Adapter Fitting #12 x 1/2 MPT

The 45 Deg Adapter Fitting #12 x 1/2 MPT from FRAGOLA is an essential hydraulic and fuel line component for high-performance automotive builds where space is tight or routing demands precision angles. Whether you're fabricating a custom fuel system, installing remote-mounted filters, or plumbing a high-pressure hydraulic brake circuit, this 45-degree adapter lets you change line direction without kinks, leaks, or dead zones that compromise flow. Mechanics and enthusiasts rely on FRAGOLA fittings because they eliminate the need for soft lines bent to awkward angles—hard plumbing with purpose-built angles delivers reliability under pressure.

This adapter features a #12 AN (dash-12) connection on one end and 1/2 MPT (male pipe thread) on the other, making it ideal for transitioning between AN hard-line systems and NPT-threaded ports on engine blocks, transmission coolers, or custom manifolds. The 45-degree geometry allows controlled line routing in engine bays where 90-degree turns create stress concentrations that lead to fatigue failure. FRAGOLA's precision machining and aluminum construction—weighing just 0.12 lbs—ensure consistent sealing surfaces while keeping weight minimal, a critical factor in race and street-performance applications where every ounce matters.

This fitting suits fabricators building fuel-injection systems, engine oil cooler circuits, transmission lines, or custom cooling loops on turbocharged and supercharged platforms. The 45-degree angle reduces vibration-induced wear compared to 90-degree elbows, making it the standard choice for street cars and track vehicles alike. Installation requires standard wrench flats and a thread-sealant-compatible assembly approach; pair it with compatible AN hose and NPT-tapped ports for leak-free longevity. Stock this FRAGOLA adapter for any project requiring robust, angled transitions between modular fuel and hydraulic systems.