6AN Male to M16x1.5 Female Black

The 6AN Male to M16x1.5 Female Black fitting from REDHORSE PERFORMANCE is a precision hydraulic adapter engineered for high-performance fuel, coolant, and brake line systems in custom automotive builds. This fitting bridges two industry-standard connection types, making it essential for mechanics and enthusiasts modifying fuel injection systems, turbocharger circuits, or cooler plumbing on street and track vehicles. Whether you're upgrading an EFI fuel rail, relocating a transmission cooler, or fabricating a custom cooling loop, this adapter ensures leak-free connections in demanding engine bay environments.

Constructed with REDHORSE PERFORMANCE's reputation for durability, the 6AN Male to M16x1.5 Female Black fitting features a black anodized finish that resists corrosion and maintains aesthetic consistency in modern engine compartments. The 6AN (6/8-inch nominal) male port connects to standard -6 hose fittings using 37-degree JIC flare geometry, while the M16x1.5 female port accepts metric threads common in OEM and aftermarket manifold adapters. This dual-standard design eliminates the need for multiple adapters in complex plumbing layouts, reducing potential leak points and simplifying installation on turbocharged, supercharged, and naturally aspirated builds alike.

Professional builders and DIY tuners benefit most from this adapter when integrating aftermarket fuel systems, oil coolers, and intercooler piping into vehicles with mixed thread standards. Compact at just 2.8 inches in length and weighing only 0.055 lbs, it fits tight engine bay installations without sacrificing flow or reliability. Compatible with fuel pressures typical of carbureted and modern EFI applications, it pairs seamlessly with REDHORSE hose and fitting systems for consistent performance across your entire fluid delivery network.