Elbow 90 X #4 Flare X 1/4 NPT

The Elbow 90 X #4 Flare X 1/4 NPT from XRP-XTREME RACING PROD. is a precision adapter fitting engineered for high-performance fuel, oil, and coolant line applications in modified and racing vehicles. This 90-degree elbow adapter bridges the critical connection between #4 AN (size 4) flare fittings and 1/4 inch NPT (National Pipe Thread) ports, making it essential for custom fuel system builds, turbo oil supply lines, and engine bay plumbing where space constraints require directional routing. Built for serious enthusiasts who demand reliability under boost and thermal stress, this adapter eliminates flow disruptions at critical junctions.

Constructed from aluminum and finished in blue anodized coating, the Elbow 90 X #4 Flare X 1/4 NPT provides both corrosion resistance and lightweight performance—critical attributes for engine compartments exposed to fuel vapors, oil spray, and ambient moisture. The male-to-male configuration allows seamless integration between AN-style flare systems and NPT-threaded components, eliminating the need for multiple adapters that compromise line integrity and add weight. Aluminum construction keeps the overall assembly light without sacrificing durability, while the anodized finish protects against oxidation in harsh underhood environments. The 90-degree geometry enables routing through tight engine bays and around obstacles common in heavily modified platforms.

This adapter is ideal for custom fuel system builds, turbo oil feed lines, coolant reroutes, and catch can drainage on LS-series engines, modern Fords, and any platform requiring mixed AN and NPT port connections. Street car tuners, drag racers, and daily-driven boosted vehicles benefit from the clean, direct routing this elbow provides compared to multiple 45-degree segments. Installation requires standard wrench sizes for both the AN flare and NPT ends; ensure proper thread seal application on the NPT side and correct flare nut torque specs per your fuel or oil line specification. Verify compatibility with your system pressure rating before installation.