Tube Sleeves Alum -3AN 2pk

The Tube Sleeves Alum -3AN 2pk from ALLSTAR PERFORMANCE delivers reliable, professional-grade hydraulic line protection for high-performance fuel systems and brake applications. This two-pack set is engineered for racers, fabricators, and serious enthusiasts who demand precision fittings that withstand vibration, thermal cycling, and demanding engine bay environments. Aluminum tube sleeves are essential components in any custom fuel or brake system where secure, leak-free connections are non-negotiable.

Constructed from aerospace-grade aluminum and finished in black anodize, each sleeve accommodates 3/16-inch tubing and features a -3AN (3/8-inch-16 UNF) thread specification for industry-standard AN adapters and fittings. The anodized finish provides corrosion resistance and durability in wet, high-heat engine compartments, while the compact aluminum construction minimizes weight without sacrificing structural integrity. These sleeves create a positive mechanical grip on the tube, preventing slippage and maintaining system pressure integrity under sustained acceleration and competition conditions.

Perfect for custom fuel system builds, competition fuel cells, hydraulic brake conversions, and high-performance plumbing applications, this pair ensures you have spares for multiple line connections. Installation is straightforward—simply slide the sleeve onto your 3/16-inch tube before connecting to AN fittings, then tighten the fitting to secure. The lightweight design and compact packaging (3.5 x 0.4 x 4.45 inches) make storage and transport convenient, while the two-pack quantity supports most complete fuel system setups or provides backup sleeves for future upgrades.