Earl's Performance Aluminum O-Ring Port Swivel Union Fittings

Earl's Performance Aluminum O-Ring Port Swivel Union Fittings are precision-machined AN adapter fittings engineered for high-performance fuel, oil, coolant, and hydraulic plumbing systems. Built on Earl's decades-long legacy of bringing aviation-grade fluid transfer technology to motorsports and street performance, these swivel unions deliver the leak-free reliability and professional finish that serious racers and builders demand.

Key Features:

• Ano-Tuff hard anodized finish — Earl's proprietary military-spec hard anodizing process penetrates deep into the aluminum base material, delivering superior wear and corrosion resistance that outlasts traditionally anodized fittings
• Swivel design — allows effortless line routing and installation without twisting, kinking, or stressing fluid lines during assembly or operation
• O-ring port sealing system — provides a reliable, leak-free connection that outperforms standard flare-style sealing in demanding pressure and temperature environments
• Lightweight aluminum construction — precision machined from high-quality aluminum to minimize system weight without compromising strength or durability
• Competition-grade appearance — the distinctive Ano-Tuff finish delivers a clean, professional look suitable for any high-performance build
• Broad application compatibility — suitable for fuel, oil, coolant, and hydraulic systems across racing, street performance, marine, and custom fabrication applications
• Made in the USA — manufactured to Earl's exacting quality and precision standards

Earl's Performance pioneered the use of aviation fluid transfer technology in the automotive performance market and has remained the benchmark for plumbing components trusted by top professional racing teams worldwide. The Aluminum O-Ring Port Swivel Union line is available in multiple AN sizes and port configurations to address virtually any plumbing situation, ensuring a perfect fit for both same-size and reducing union applications.

Whether you're plumbing a race car, hot rod, custom street machine, or off-road build, Earl's Aluminum O-Ring Port Swivel Union Fittings provide the combination of strength, sealing integrity, and clean aesthetics that have made Earl's the industry standard in performance fluid systems.