Tube Sleeves Alum -4AN 20pk

The Tube Sleeves Alum -4AN 20pk from ALLSTAR PERFORMANCE is a foundational component for anyone building or maintaining high-pressure hydraulic and fuel line systems. These aluminum tube sleeves are engineered to secure 1/4 inch tubing to AN (Army-Navy) fittings, preventing slippage and ensuring leak-free connections under demanding conditions. This 20-pack offering provides the redundancy and bulk needed for race shops, restoration projects, and mobile mechanics who cannot afford downtime due to loose or failed line connections.

Manufactured from aluminum and finished in black anodize, these 4AN tube sleeves deliver corrosion resistance and a professional appearance while maintaining minimal weight. The black anodized coating protects the aluminum substrate against oxidation and surface wear, critical in environments exposed to fuel, oil, moisture, and temperature cycling. The 4AN sizing (standard 1/4 inch tube outer diameter) ensures compatibility with industry-standard hydraulic and fuel line assemblies, and the sleeve design allows for quick hand-tightening without specialized tools, reducing installation time on the job or in the shop.

These sleeves are ideal for automotive enthusiasts, drag racers, engine builders, and professional technicians who spec AN fittings for fuel delivery, brake lines, and transmission cooler circuits. The 20-pack quantity supports complete system builds and provides spares for field repairs, making this product indispensable for serious fabricators and high-performance shops. Simply slide the sleeve over the tube end before inserting into the AN fitting, then tighten the fitting nut to secure—no special skills required. Compatible with any 4AN fitting and 1/4 inch tubing diameter.