P/C #6 to 1/4 NPT 90 Deg Adapter Fitting

The P/C #6 to 1/4 NPT 90 Deg Adapter Fitting is a critical component for any serious engine builder, performance tuner, or mechanic working with fuel systems, oil lines, and hydraulic applications. This 90-degree elbow adapter serves as a bridge between two different thread standards—the metric P/C #6 port and the standard 1/4 NPT (National Pipe Thread) connection—making it indispensable for custom fuel systems, turbo setups, and high-flow cooling circuits where space constraints demand compact directional changes. Whether you're fabricating a custom fuel rail, upgrading a carburetor inlet manifold, or rerouting coolant lines in a tight engine bay, this fitting ensures leak-free flow transitions without requiring complex manifold modifications.

Russell has engineered this adapter with precision manufacturing and quality materials designed to withstand the pressures and vibration cycles inherent in modern performance engines. The 90-degree geometry allows maximum clearance in confined spaces—critical when routing lines around engine blocks, cylinder heads, and intake manifolds in tight installations. The NPT threads provide a tapered, self-sealing connection that eliminates the need for additional sealant compounds in most applications, while the P/C #6 port accepts standard metric fittings commonly found on factory fuel systems and aftermarket performance components. Weighing just 0.06 lbs and measuring 2.45 x 1.65 x 4.85 inches, this compact adapter minimizes obstruction while delivering reliable pressure performance for both fuel and coolant circuits.

Technicians and engine builders favor this fitting for custom fuel system fabrication, turbocharger coolant line routing, and oil gallery modifications on both naturally aspirated and forced-induction platforms. It's particularly valuable when converting OEM systems to aftermarket fuel rails, upgrading factory cooling systems on turbocharged engines, or adapting metric-threaded components to standard NPT-based manifolds. Installation is straightforward—apply appropriate thread sealant to NPT connections and torque to manufacturer specifications to prevent leakage under pressure. This adapter is compatible with any system using P/C #6 metric ports and 1/4 NPT standard ports, making it a versatile solution for street builds, track applications, and engine swap projects.