Adapter 90 #3 Flare 1/8in NPT

The A-1 PRODUCTS Adapter 90 #3 Flare 1/8in NPT is a 90-degree hydraulic and fuel line adapter engineered to connect AN male fittings to NPT male ports on marine engines, fuel systems, and fluid transfer applications. This aluminum adapter features blue anodized corrosion resistance—critical for saltwater and freshwater environments where metal-to-water contact accelerates oxidation. The 3 AN to 1/8 NPT conversion is a standard coupling requirement in modern marine propulsion, bilge systems, and fuel delivery networks.

The 90-degree angle design allows fluid lines to route around tight engine compartment spaces without requiring additional bends in the hose itself, reducing pressure drop and potential kink failure points. Aluminum construction keeps weight minimal—critical in performance boats where every pound affects fuel consumption and speed—while maintaining structural integrity under pressurized fluid delivery. The blue anodized finish provides a protective oxide layer that resists salt spray, ethanol fuel vapors, and the corrosive marine environment far better than bare aluminum. NPT (National Pipe Thread) tapered threads create a mechanical seal without requiring additional sealant compounds, simplifying installation and reducing leak points in high-vibration engine applications.

This adapter serves offshore anglers upgrading fuel systems, weekend boaters performing preventive engine maintenance, and marine technicians fabricating custom hydraulic and fuel line assemblies. It's essential for replacing corroded or damaged NPT-to-AN adapters in older engines or when integrating newer modular fuel components into existing marine installations. Serious boaters maintain spare adapters of this size since NPT-to-AN connections are foundational to any fuel or coolant system modification, and failures in these transition points can leave you stranded or create expensive engine damage.