16an D/S Pump Fitting

The 16AN D/S Pump Fitting by Moroso is a precision-engineered aluminum adapter designed for high-performance oil system installations. This fitting serves as a critical interface component for external oil pump applications, enabling secure and leak-free connections in race engines, performance builds, and custom cooling systems. Crafted for builders and technicians who demand reliability under demanding conditions, the 16AN D/S Pump Fitting ensures proper oil flow routing and system integrity in applications where OEM solutions fall short.

Manufactured from aluminum in a natural finish, this fitting features a 16 AN male thread configuration that accommodates standard braided hose or rigid line connections used in modern engine plumbing systems. The D/S (double straight) geometry provides straightforward port alignment, eliminating the complexity of angled adapters in constrained engine bay layouts. Moroso's reputation for precision manufacturing ensures that thread specifications are held to tight tolerances, reducing installation time and minimizing the risk of cross-threading or system leaks that could compromise engine performance or longevity.

This fitting is ideal for enthusiasts upgrading to external dry-sump or wet-sump pump systems, street rod builders, and motorsport teams requiring custom oil plumbing solutions. Its lightweight aluminum construction—weighing just 0.12 lbs—contributes negligibly to overall engine assembly weight while maintaining full strength and durability. Installation is straightforward: thread into the pump outlet port and connect your AN-sized hose or line, ensuring proper torque to achieve a sealed connection without over-tightening the aluminum body.