#16 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk

The #16 x 1-1/16-12 (#12) Radius O-Ring Fitting Bk from FRAGOLA is a precision-engineered adapter designed for high-pressure hydraulic and fuel system applications. This straight fitting connects 16 AN male ports to 12 AN male ports, making it essential for builders and technicians who need to bridge different line sizes in racing fuel systems, hydraulic brake circuits, and performance engine builds. The black anodized aluminum construction provides corrosion resistance while maintaining a professional appearance in engine bays and fuel cell installations.

This adapter features FRAGOLA's signature radius O-ring design, which creates a reliable seal at both the 16 AN male inlet and 12 AN male outlet without requiring PTFE tape or pipe dope. The O-ring groove geometry accommodates standard AN system O-rings, ensuring leak-free operation under demanding pressure cycles common in motorsports and off-road applications. Black anodized aluminum offers superior strength-to-weight ratio while resisting oxidation and maintaining structural integrity even when exposed to fuel, coolant, and extreme temperature swings typical of performance engine environments.

Technicians, engine builders, and motorsports enthusiasts rely on this fitting for carburetor fuel systems, EFI fuel rails, remote oil filters, and intercooler circuits where port size transitions are unavoidable. The straight configuration allows clean, compact routing in tight engine compartments, and the lightweight design (0.14 lbs) makes it ideal for weight-conscious builds. Proper installation requires hand-tightening to prevent O-ring extrusion; no thread sealant is necessary, simplifying maintenance and future disconnects on high-performance platforms.