#3 ORB #4 JIC Straight Fitting - Aluminum

The #3 ORB #4 JIC Straight Fitting by K.S.E. RACING is an essential hydraulic connector for high-performance automotive cooling and fuel system applications. Built for serious engine builders and race mechanics, this straight adapter bridges two different industry-standard port configurations in a single, compact component. Whether you're assembling a custom cooling loop, fuel delivery system, or auxiliary hydraulic circuit, this fitting eliminates the need for multiple adapters and reduces potential leak points in your engine bay.

Machined from lightweight aluminum, the #3 ORB #4 JIC Straight Fitting combines durability with minimal weight—critical factors in performance builds where every tenth of a pound matters. The O-ring boss (ORB) port on one end accommodates O-ring seals, while the JIC (Joint Industry Council) port on the other end accepts a 37-degree flare connection, ensuring reliable pressure containment under demanding engine conditions. The straight configuration allows for space-efficient routing through tight engine compartments, and the aluminum construction resists corrosion while maintaining excellent thermal properties for cooling applications.

Professional engine builders, circle-track racers, and street performance enthusiasts rely on K.S.E. RACING fittings for their repeatability and precision. This adapter is ideal for connecting OEM or custom cooling components, fuel rails, or auxiliary systems where existing hose assemblies don't align perfectly. Installation requires standard wrench sizing; ensure proper torque specifications for both ORB and JIC threads to achieve leak-free seals. The compact dimensions (2.05 x 0.65 x 2.7 inches) and featherweight design (0.02 lbs) make it suitable for tight underhood layouts without compromising system integrity or flow characteristics.