#6 x 1/8NPS Transmission Adapter Fitting Black

The #6 x 1/8NPS Transmission Adapter Fitting Black from FRAGOLA is a precision AN-style adapter designed for high-performance transmission cooler lines, fuel systems, and hydraulic applications in custom vehicle builds. This compact fitting serves as a critical junction point in modern engine bay setups where OEM hard lines must transition to braided stainless steel hose assemblies. Whether you're building an LS swap, upgrading transmission cooling on a performance platform, or integrating aftermarket fluid management systems, this adapter provides a reliable connection point that separates amateur work from professional-grade modifications.

Manufactured to strict AN (Army-Navy) specifications, the #6 x 1/8NPS Transmission Adapter Fitting delivers consistent thread engagement and leak-free operation under pressure. The #6 AN port is designed for use with 3/8-inch inner diameter hose or hard-line tubing, while the 1/8-inch NPT (National Pipe Thread) side threads into transmission cases, radiators, or auxiliary coolers—making it ideal for both inlet and return line configurations. Black anodized aluminum construction resists corrosion in engine bay environments while maintaining lightweight characteristics critical in racing and street performance applications.

Serious gearheads and transmission specialists rely on FRAGOLA adapters for their durability and performance. The compact design allows for installation in tight underhood spaces where bulkier fittings create routing complications or heat-related failures. This fitting is an essential component for anyone looking to enhance their vehicle's performance and reliability.