Earl's Performance Steel AN Weld Fittings

Earl's Performance Steel AN Weld Fittings are the trusted choice of professional fabricators, racers, and custom builders who require permanent, leak-free fluid connections in demanding plumbing installations. Engineered to Army-Navy (AN) standards, these steel weld fittings deliver the precision, reliability, and broad compatibility that high-performance builds demand across fuel systems, oil circuits, coolant plumbing, and hydraulic lines.

Constructed from zinc-plated domestic steel, each fitting in this lineup is precision-machined to exacting tolerances, meeting and exceeding the minimum requirements for aerospace-grade use. The result is consistent, trouble-free performance even in the most punishing environments — from the race track to the custom street build.

Key Features:

• Zinc-plated domestic steel construction for long-lasting durability and corrosion resistance
• Meets and exceeds aerospace-grade material standards
• Precision-machined to exacting tolerances for reliable, leak-free performance
• Army-Navy (AN) standard threading for broad compatibility across hoses, adapters, and fittings
• Engineered specifically for permanent weld-in installations in custom plumbing builds
• Suitable for fuel systems, oil circuits, coolant plumbing, and hydraulic applications
• Available in multiple thread configurations to accommodate a wide range of plumbing layouts
• Made in the USA

About Earl's Performance: Earl's Performance has been at the forefront of motorsports plumbing since 1955, when founder Earl Fouts pioneered the direct supply of high-quality plumbing components to the racing industry. Earl's invented the self-indexing Swivel-Seal hose end, introduced PTFE-lined flexible armored hose to the racing world, and created most of the special-purpose racing adapters still in common use today. Recognized as the world's leading source for motorsport hose and fitting solutions, Earl's race-proven heritage spans the vast majority of Indy 500 winners and championship teams across funny car, sprint car, and open-wheel disciplines. When your build demands a permanent, professional-grade fluid connection, Earl's Steel AN Weld Fittings deliver.