Adapter #3 Flare X 1/8np Black

The Adapter #3 Flare X 1/8 NPT Black from XRP-Xtreme Racing Products is a precision hydraulic and fuel line adapter engineered for high-performance automotive applications where reliability under pressure is non-negotiable. This fitting bridges the critical gap between #3 flare connections and 1/8" NPT (National Pipe Thread) ports, making it essential for custom fuel system builds, brake line integration, and engine bay plumbing on modified vehicles. Whether you're upgrading a carbureted hot rod, installing a fuel injection system, or fabricating a custom cooling circuit, this adapter ensures leak-free connections in demanding conditions.

XRP's black-anodized aluminum construction provides corrosion resistance while maintaining lightweight characteristics critical in performance builds. The #3 flare end (0.375" diameter) accommodates standard -3 line sizes and meets SAE J518 flare specifications, while the 1/8" NPT male thread delivers a robust sealed connection to manifolds, blocks, or custom billet fittings. The compact 2.7" length and minimal 0.02 lbs weight make this adapter ideal for tight engine compartments where space is at a premium and every ounce matters. XRP's manufacturing tolerances ensure precise sealing without relying on thread sealant tape, though -3 flare connections are best secured with light pipe dope for vibration resistance.

This adapter serves fabricators, restorers, and performance mechanics building fuel systems, turbo oil supply lines, transmission cooler circuits, and custom brake applications on muscle cars, street rods, and race vehicles. It's particularly valuable when sourcing NPT-threaded components (common in aftermarket manifolds and aluminum blocks) that must interface with standard automotive hose sizes. Installation requires only a wrench on both ends—no special tools needed—and the black finish resists staining from fuel, oil, and coolant exposure over years of service.