Elbow 90 X #4 Flare X 1/8 NPT

The Elbow 90 X #4 Flare X 1/8 NPT from XRP-XTREME RACING PROD. is a precision hydraulic and fuel line adapter engineered for high-performance fuel systems, brake lines, and custom plumbing applications in race vehicles and heavily modified street cars. This 90-degree elbow fitting bridges the gap between two industry-standard connection types—AN flare and NPT threads—allowing mechanics and fabricators to integrate components from different manufacturers or legacy systems without compromise. Whether you're building a fuel injection setup, upgrading brake lines, or routing coolant through a custom manifold, this adapter eliminates the need for costly custom fabrication or system redesigns.

Constructed from lightweight aluminum and finished in blue anodized coating, the Elbow 90 X #4 Flare X 1/8 NPT combines durability with corrosion resistance—critical for both underhood environments and systems exposed to fuel and coolant. The #4 AN (dash-4) flare connection accommodates 1/4-inch hose or tubing, while the 1/8-inch NPT male thread accepts standard pipe fittings and sensors common to OEM and aftermarket applications. The 90-degree angle geometry is precisely machined to minimize flow turbulence and pressure drop, ensuring reliable performance in high-flow fuel systems operating at sustained boost or elevated fuel pressure. Its compact 2.75 x 0.9 x 3.65-inch footprint and 0.04-pound weight make it ideal for tight engine bay layouts where space is at a premium.

Performance enthusiasts, racing fabricators, and restoration shops rely on XRP fittings to connect fuel rails, carburetors, fuel pressure regulators, and coolant bypass circuits without leaks or compatibility headaches. Installation is straightforward—use a wrench on both the flare nut and NPT body to avoid spinning the fitting during tightening, and apply thread sealant to the NPT side if routing non-pressurized fluid. This adapter works seamlessly with XRP hose assemblies, -4 AN hose, and any NPT-threaded component, making it an essential addition to any high-end fuel system overhaul or custom plumbing project where precision and reliability are non-negotiable.