NPT Allen Plug 1/16

The NPT Allen Plug 1/16 from Triple X Race Components is a precision aluminum fitting designed for hydraulic and pneumatic systems in high-performance racing applications. This compact port plug seals unused 1/16-inch NPT (National Pipe Thread) ports, preventing fluid loss, contamination, and air leaks in critical fluid delivery systems. Racing teams and custom fabricators rely on these fittings to maintain system integrity while keeping manifold configurations clean and organized.

Manufactured from lightweight aluminum and finished in black anodizing, the NPT Allen Plug 1/16 resists corrosion and oxidation in demanding engine bay environments. The Allen head design allows tool-free or hex wrench tightening without requiring specialized sockets, making installation and removal straightforward in tight spaces. Black anodizing protects the aluminum substrate while providing a professional appearance consistent with modern racing systems. Weighing only 0.02 pounds, this fitting adds negligible mass while delivering reliable, leak-free port closure across a wide temperature range typical in motorsports applications.

This plug is ideal for fabricators assembling custom hydraulic brake lines, fuel systems, and cooling circuits where port density is high and clean aesthetics matter. The 1/16-inch NPT thread pitch is standard across power steering systems, fuel rails, and custom manifold work in street and track vehicles. Installation requires only hand-tightening or light wrench torque—excessive force can damage aluminum threads, so care during assembly is essential. Each plug seals independently, allowing partial system configuration without blocking complete manifold operation, making it invaluable for prototype development and modular system design.