12AN to 12AN(3/4)NPT Union Adapter 90

The REDHORSE PERFORMANCE 12AN to 12AN (3/4) NPT Union Adapter 90 Degree is a precision-engineered hydraulic fitting designed to join AN-sized hose lines with NPT threaded ports at a 90-degree angle. This adapter bridges two different thread standards—12 AN male (JIC) and 3/4 inch NPT male—making it essential for custom hydraulic system fabrication where port orientations require angular connection and standard straight fittings won't work.

Constructed from aluminum and finished in black anodizing, this 90-degree union adapter delivers both corrosion resistance and lightweight performance. The aluminum construction reduces system weight compared to steel alternatives, while the anodized finish protects against oxidation in diverse environments. At 0.18 lbs and compact dimensions (2.8 × 1.4 × 3.8 inches), the fitting integrates cleanly into tight engine bays, chassis installations, and custom hydraulic layouts without adding bulk. The 90-degree angle eliminates the need for external elbows or tubing bends, simplifying routing and reducing potential leak points where separate components would otherwise connect.

This adapter is ideal for fabricators building custom cooling systems, fuel delivery circuits, brake upgrades, and power steering modifications where NPT-threaded factory ports must accept AN hose connections at angles. Shops working on race cars, classic restorations, marine engines, and industrial hydraulic systems rely on REDHORSE adapters to maintain system integrity while achieving precise plumbing geometry. The 822 series from REDHORSE is recognized for consistent tolerances and reliable sealing under pressure.

Proper adapter selection depends on exact port thread type and hose size. Verify that your system calls for 12 AN male on one end and 3/4 inch NPT male on the other before ordering. Thread compatibility is critical—mismatched sizes or thread types will not seal and can damage system components. This single adapter fits one connection point; additional fittings are required for multi-point layouts.