Earl's Performance Aluminum AN Weld Fittings

Earl's Performance Aluminum AN Weld Fittings are the professional fabricator's choice for creating permanent, structurally integrated fluid connections in custom builds of all kinds. Built on over five decades of aviation-inspired engineering, Earl's has delivered aerospace-grade plumbing solutions to the racing and performance industries since 1955 — and this weld fitting line carries that same uncompromising standard.

Key Features:

• 6061 aluminum construction — lightweight bare aluminum that meets and exceeds minimum requirements for aerospace use, delivering exceptional strength and corrosion resistance in demanding environments
• Precision-machined to exacting tolerances — ensures proper AN thread engagement, leak-free sealing, and reliable long-term performance across every variant in the line
• Engineered for clean TIG welding integration — designed to weld directly into custom tubing, tanks, bungs, and fabricated components with minimal prep and professional results
• Broad fluid system compatibility — suitable for fuel systems, oil lines, coolant circuits, and a wide range of fluid transfer applications across automotive, racing, marine, and custom fabrication projects
• Full AN thread compatibility — integrates seamlessly with Earl's hose ends, adapters, and the broader AN plumbing ecosystem
• Multiple thread configurations available — the product line spans male AN, female AN O-ring seal, and female NPT configurations to cover virtually any custom plumbing requirement
• Made in the USA — manufactured to Earl's quality standards, backed by decades of trust from professional racers and builders worldwide

Earl's Performance Plumbing brought aviation fluid transfer technology to the automotive performance market over five decades ago, and these weld fittings are a direct extension of that legacy. Whether the application is a dedicated race car, a high-performance street build, or a custom marine project, Earl's Aluminum AN Weld Fittings deliver the permanent, weight-conscious connection that professional fabricators demand.