12AN Alum Tube Sleeve Use with 818-12 1/pkg

The 12AN Alum Tube Sleeve Use with 818-12 is a precision hose end component engineered for high-performance fuel, oil, and coolant line systems in custom-built engines and modified vehicles. Designed by REDHORSE PERFORMANCE—a leader in motorsport-grade plumbing solutions—this aluminum tube sleeve pairs with the 818-12 hose end fitting to create a leak-free, pressure-rated connection. Whether you're building a supercharged street engine, fabricating a race car fuel system, or upgrading your daily driver's cooling circuit, this sleeve delivers the reliability that separates professional engine work from amateur installations.

Constructed from lightweight aluminum alloy, the 12AN tube sleeve reduces system weight while maintaining structural integrity under extreme pressure and temperature cycling. The 12AN designation indicates a -12 AN (JIC AN) hose size, a standard aerospace-grade specification that ensures compatibility across aftermarket suppliers and OEM performance lines. The sleeve's precision-engineered bore and compression geometry create a compression-fit seal when mated with the 818-12 hose end, eliminating the need for secondary ferrules and reducing assembly failures common in lower-grade systems. At just 0.04 lbs, it adds negligible mass to your plumbing circuit while contributing to system longevity through superior corrosion resistance compared to steel alternatives.

This component is essential for serious engine builders, fabricators, and mechanics tackling LS swaps, turbocharged conversions, and fuel-injected restorations where OEM hose configurations won't fit custom layouts. The 12AN Alum Tube Sleeve works exclusively with the matching 818-12 hose end fitting—verify your hose end part number before ordering to ensure proper assembly. Installation requires no special tools beyond a standard wrench; the sleeve slides onto your hose end and tightens via the hose barb's compression fitting. Stock one (1 per package) for each connection point in your system, or order multiples if you're plumbing dual fuel rails, remote oil coolers, or multi-circuit cooling upgrades.