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Nitrous Express 4AN Female to 6AN Male Adapter Fitting

4AN Female to 6AN Male Adapter Fitting
  • Pipe Fitting Female To Male

The Nitrous Express 4AN Female to 6AN Male Adapter Fitting is designed to connect fuel, nitrous, oil, and other compatible automotive fluid lines with different AN thread sizes. This adapter features a 4AN female connection and a 6AN male connection, providing a practical solution for adapting components within a performance plumbing system. Part number NEX16203 is engineered for use with compatible Nitrous Express and aftermarket applications.


  • Pipe Fitting Female To Male


Built for automotive performance installations, this Nitrous Express adapter helps simplify line routing and component compatibility where a 4AN female port must connect to a 6AN male port. Its compact design supports clean, efficient plumbing arrangements in engine bays and other confined installation areas. Verify thread style, hose compatibility, and system requirements before installation to ensure a proper fit and leak-free connection.
This adapter fitting is sold as a single unit and is intended for automotive applications. Professional installation or inspection is recommended when working with pressurized fuel, nitrous, oil, or other fluid systems. This product may contain chemicals known to the State of California to cause cancer or reproductive harm; see California Proposition 65 information for applicable warnings.

Features:

  • 4AN female to 6AN male connection for adapting compatible automotive fluid lines
  • Automotive performance fitting for fuel, nitrous, oil, and other compatible applications
  • Compact adapter design supports practical installation in confined engine-bay areas
  • Nitrous Express part number NEX16203
  • Female-to-male pipe fitting configuration