Inlet Fitting 1/8-27 NPT to -3

The WILWOOD Inlet Fitting 1/8-27 NPT to -3 AN (part number 220-6956) is a precision hydraulic adapter designed to connect NPT threaded ports to AN-style fluid lines in high-performance braking systems. This straight-configuration fitting converts a 1/8-inch NPT male inlet to a -3 AN male outlet, enabling seamless integration between metric and SAE hydraulic standards in motorsport, racing, and high-pressure fluid transfer applications.

Constructed from steel and finished with zinc oxide coating, the fitting provides corrosion resistance essential for engine bay environments and ensures durability under repeated pressure cycles. The 1/8-27 NPT male inlet thread conforms to NPTF (National Pipe Tapered Fuel) standards, delivering reliable sealing against factory OEM hydraulic ports and aftermarket brake components. The -3 AN outlet accommodates standard braided stainless steel hose assemblies (3/16-inch hose ID), a universal standard in performance brake system design. Compact dimensions and lightweight construction (0.03 lbs) minimize installation complexity and weight penalty on custom brake applications.

This adapter is essential for builders transitioning from OEM metric brake systems to aftermarket AN-plumbed hydraulic platforms—common in track-use vehicles, drag racing builds, and vintage restorations. The WILWOOD brand positioning in motorsport hydraulics ensures engineering focused on pressure consistency and failure-free operation under sustained high-performance demand. Technicians and tuners working with Wilwood master cylinders, proportioning valves, and pressure switches rely on OEM-matched fittings to maintain system integrity and prevent fluid leaks that compromise braking safety.