#4 To 1/4in Flare Adapter

The #4 to 1/4in Flare Adapter by AEROQUIP is a crucial hydraulic and pneumatic fitting designed for custom fuel, brake, and fluid line work on both modern and classic vehicles. This adapter allows mechanics and fabricators to connect incompatible line diameters, ensuring system integrity and performance. It is particularly useful for building custom fuel systems, upgrading brake lines, or routing hydraulic hoses in tight spaces.

Manufactured to strict SAE J518 specifications, AEROQUIP flare adapters are made from precision-formed brass or steel, providing resistance to corrosion and durability under temperature cycling common in automotive applications. The #4 to 1/4in configuration effectively converts a larger #4 SAE port (7/16in diameter) to a smaller 1/4in connection, making it ideal for situations where space constraints or component availability are a concern. The metal-to-metal seal created by flare fittings eliminates reliance on rubber O-rings, delivering superior pressure ratings and durability.

Professional mechanics, hot rodders, and fuel system fabricators trust AEROQUIP adapters for retrofitting modern fuel injection onto carbureted platforms and for hydraulic brake upgrades. This flare adapter ensures leak-free connections and reliable operation under pressure, making it an essential tool for anyone working on automotive fluid systems.