Filter Fitting-3/4in NPT -12AN Male

The MOROSO Filter Fitting 3/4in NPT to 12AN Male adapter is a straight-flow adapter designed to connect filters and components across different port standards in high-performance fluid systems. This stainless steel fitting bridges 3/4-inch NPT (National Pipe Thread) male ports to 12AN male JIC ports, eliminating the need for multiple adapters or custom hose routing in engine oil filtration, fuel systems, and coolant applications.

Constructed from black anodized aluminum with a stainless steel internal screen, this adapter delivers proven durability in demanding thermal and pressure environments. The straight flow path minimizes turbulence and pressure drop—critical factors when precision cooling or filtration efficiency affects engine performance. The stainless screen blocks contamination while maintaining maximum flow rate, protecting downstream components from debris. At 0.16 lbs and compact dimensions, it integrates cleanly into tight engine bay layouts without adding weight or bulk.

This fitting serves engine builders, performance technicians, and enthusiasts who demand flexibility in system design. Whether upgrading a fuel system to high-flow standards, retrofitting a coolant loop with premium filtration, or adapting aftermarket filter housings to legacy engine blocks, the 3/4in NPT to 12AN adapter eliminates port mismatch without sacrificing flow integrity or introducing leak points. MOROSO adapters are widely specified in racing and high-output engine builds where system reliability directly impacts competition results.