#6 Flare #4 Flare Reducer Black

The #6 Flare #4 Flare Reducer Black by AEROQUIP is an essential hydraulic and pneumatic line adapter for mechanics and fabricators working with precision fluid systems. This reducer fitting bridges connections between different flare port sizes, allowing you to integrate components with mismatched line diameters without compromising system integrity. Whether you're building a custom brake system, fuel line assembly, or air suspension circuit, this adapter eliminates the need for costly custom hose runs and reduces potential leak points in your network.

Manufactured by AEROQUIP—an industry leader in fluid conveyance solutions—this reducer features a stepped design that accommodates #6 flare connections on one end and #4 flare connections on the other, enabling seamless downsizing of line diameter. The black electroplated finish resists corrosion and provides long-term durability in engine bays and exposed mounting locations. The compact form factor (2.3 x 1.1 x 3.7 inches) and lightweight construction (0.04 lbs) make it ideal for tight spaces where bulk and weight matter. Precision flare seat geometry ensures reliable, leak-free connections under both high-pressure hydraulic and low-pressure pneumatic applications.

Professional technicians, custom fabricators, and motorsport builders rely on AEROQUIP flare reducers for brake, clutch, fuel, and air line work where code compliance and safety are non-negotiable. This adapter is particularly valuable in engine bay reshuffles, turbo plumbing upgrades, and trailer brake system installations where existing hose terminations don't match new component ports. Ensure proper wrench fit and torque specifications when installing—flare connections depend on correct assembly pressure for leak-free performance. Stock this versatile reducer in your shop for rapid hydraulic system repairs and custom build support.