-4 Bottle Nipple

The -4 Bottle Nipple is a precision nitrous oxide system component designed for direct connection between D-4 nitrous bottles and high-flow fuel or boost delivery systems. This straight-design nipple converts 326NX bottle valve output to 4 AN male fittings, enabling seamless integration into custom fuel and nitrous manifold setups used in performance automotive applications.

Constructed from aluminum and finished with black anodize coating, this nipple provides corrosion resistance essential for nitrous systems exposed to high-pressure cycling and temperature fluctuations. The straight configuration minimizes flow restriction at the valve interface, maintaining consistent pressure delivery without turbulence. The 4 AN male thread is the industry standard for performance nitrous plumbing, offering reliable compatibility with aftermarket fuel rails, distribution blocks, and injector supply lines rated for nitrous oxide service. Anodized finishes on aluminum fittings are critical in nitrous applications because they prevent oxidation that could otherwise compromise seal integrity under extreme pressure conditions.

This component is engineered for builders and tuners assembling custom nitrous oxide systems where bottle-to-manifold connections demand precision fitting and corrosion protection. Whether upgrading a street performance fuel system or building a dedicated nitrous kit, this nipple provides the reliable interface point that high-pressure nitrous applications require. The lightweight aluminum construction (0.04 lbs) reduces system weight while maintaining structural integrity.

Nitrous oxide system components must meet strict pressure and compatibility standards. This nipple's D-4 to 4 AN conversion is a common configuration in the performance tuning community, indicating its suitability for both single and multi-stage nitrous system designs. Always verify compatibility with your specific bottle valve type and manifold configuration before installation.