Fitting 90 Degree 7/8-14 to 3/8in Barb

The Fitting 90 Degree 7/8-14 to 3/8in Barb by DERALE is a critical fluid-transfer adapter for cooling system upgrades, custom radiator installations, and auxiliary cooler plumbing. Mechanics and performance enthusiasts rely on this elbow fitting when routing hoses through tight engine bays, upgrading transmission coolers, or installing aftermarket cooling systems where direct flow paths are impossible. The 90-degree angle eliminates kinks and stress on hose runs, ensuring reliable coolant circulation without pressure loss or premature hose failure.

This fitting features a 7/8-14 male thread on one end, which mates with standard cooling system ports and adapters common to most American muscle cars, street rods, and modern performance builds. The 3/8-inch barbed outlet accepts barbed hose fittings for secure, leak-free connections without clamps or ferrules—a time-tested design that prevents weeping at high coolant pressures. The compact, lightweight construction (0.14 lbs) and compact footprint (2.75 × 1.35 × 3.6 inches) make it ideal for constrained underhood routing where space is at a premium, particularly in engine bay modifications where factory cooling paths have been relocated or upgraded.

Professional shops and experienced DIY builders favor DERALE fittings for their durability and precise machining, ensuring threads hold torque without stripping and barbs grip hose securely under sustained temperature cycling. This adapter is essential when installing auxiliary transmission, oil, or intercooler coolers; retrofitting older cooling systems with modern components; or designing custom cooling loops for supercharged and turbocharged applications where stock cooling proves inadequate. Verify thread compatibility with your existing cooler ports and confirm hose ID matches the 3/8-inch barb outlet before purchase to ensure a seamless, pressure-tested installation.