AN Male Reducer #12 x #16

The AN Male Reducer #12 x #16 by TRIPLE X RACE COMPONENTS is a precision hydraulic adapter designed for high-performance fuel, oil, and coolant line applications in custom engine builds and racing platforms. This stepped reducer fitting bridges the gap between larger #16 AN ports and smaller #12 AN line requirements, eliminating the need for multiple hose assemblies and reducing weight in tight engine bays. Whether you're building a fuel-injected street machine, competition drag car, or high-output street rod, this adapter provides a clean, direct solution for plumbing mismatches without sacrificing flow rate or system integrity.

Manufactured to AN/JIC (Army-Navy/Joint Industrial Council) standards, the AN Male Reducer features precision-machined aluminum construction with a black anodized finish for corrosion resistance and durability in high-temperature engine environments. The male threads on the #12 end accept standard AN hose fittings or block ports, while the #16 end threads into larger manifold or component ports, creating a seal through the tapered AN thread profile rather than relying on O-rings. This design maintains full flow capacity across the transition, critical for fuel delivery systems where pressure drops or turbulence can affect carb tuning or fuel injection mapping. Compact at 2.65 inches in length and weighing just 0.16 pounds, it integrates seamlessly into congested engine compartments without adding bulk.

Mechanics and fabricators favor this reducer for custom fuel systems, oil cooler lines, and coolant circulation in extensively modified powerplants where factory ports don't align with modern plumbing standards. Installation requires only a wrench or AN wrench set—thread the male #12 end into your hose fitting or block port and torque the #16 end into the larger component port until snug, taking care not to over-tighten and crack the aluminum. Compatible with all standard AN hose, braided stainless steel lines, and factory-style adapters, the AN Male Reducer #12 x #16 is an essential inventory item for engine builders, transmission shops, and DIY enthusiasts tackling fuel system upgrades or engine swaps.