SKU: EAR165006ERL
UPC: 021432222471
MPN: 165006ERL
The #6 Male to 3/8in Aluminum Tubing Adapter is a precision fitting designed for custom fuel, oil, and coolant line routing in high-performance engine builds and modified vehicle systems. As an automotive professional, you'll recognize this adapter as essential when integrating aftermarket fuel injection systems, external oil coolers, turbocharger intercooler setups, or custom cooling loops where AN6 male connections must transition to 3/8-inch aluminum tubing. This adapter bridges the gap between standardized AN fittings and rigid aluminum hard lines, allowing cleaner engine bay aesthetics while maintaining reliable pressure-rated connections.
Constructed from lightweight aluminum, this adapter offers the durability required for motorsport and street performance applications where weight savings and thermal performance matter. The #6 AN male thread (which corresponds to -6 AN standard fitting nomenclature) provides a secure, leak-free connection with proper sealing tape or thread sealant, while the 3/8-inch aluminum tubing port accepts standard DOM or aluminum hard line stock. The compact design—measuring 2.7 inches in length and weighing just 0.04 pounds—ensures minimal obstruction in tight engine compartments, and aluminum construction resists corrosion while remaining compatible with both fuel and coolant system applications when properly sealed.
Ideal for engine bay fabricators, turbo kit installers, and serious DIY builders, this adapter serves dual-purpose builds where you're transitioning between flex hose sections and hard lines, or connecting fuel rails, surge tanks, and remote oil filtration setups. Installation requires standard wrench sizes and basic plumber's knowledge of thread sealant application—PTFE tape or anaerobic thread sealant ensures lasting pressure integrity. Whether you're upgrading a naturally aspirated engine or completing a forced-induction conversion, this fitting integrates seamlessly into any system utilizing -6 AN male connections and 3/8-inch aluminum tubing.
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