6AN 3/8NPT Pipe Plug Hex Head Blue 2/pkg

The REDHORSE PERFORMANCE 6AN 3/8NPT Pipe Plug Hex Head Blue is a precision hydraulic and pneumatic fitting designed for high-performance fluid systems. This two-pack of aluminum plugs seals 3/8-inch NPT (National Pipe Thread) ports with a secure hex head design, preventing leaks and contamination in fuel, coolant, and pressurized air applications. The blue anodized finish provides corrosion resistance and visual identification within complex plumbing layouts.

Each plug features a 6AN port size, matching standard -6 hose and fitting specifications common to racing fuel systems, turbo plumbing, and custom hydraulic installations. The hex head design allows torque application with a standard wrench, ensuring consistent sealing pressure without over-tightening. Aluminum construction keeps weight minimal while delivering adequate strength for moderate-pressure systems, and the NPT thread form creates a positive mechanical seal compatible with most aftermarket and OEM manifolds and blocks.

Buyers installing custom fuel rails, oil cooler lines, or intercooler plumbing depend on quality plugs to isolate unused ports and prevent air ingestion or spillage during assembly and testing. The two-pack format addresses common replacement needs when upgrading from larger to smaller hose sizes or when closing off ports during system modifications. Blue anodizing is the standard identifier in the 932 Series, simplifying inventory management across multiple fitting colors and sizes.

REDHORSE fittings are widely used in motorsports fuel systems, marine engine conversions, and custom cooling applications where reliability and leak-free operation are non-negotiable. The 932 Series plug line offers a complete range of NPT sizes and AN port ratings to match virtually any manifold configuration.