The CFD-504 Fuel Cell Electrical Bulkhead Fitting provides a reliable connection solution for high-performance fuel systems. Engineered to fit for 10-12 gauge wires and 3/8 NPT threaded openings, this fitting serves as a direct replacement for OEM part numbers: 0580254950,5804640,580464041,580254951;580464030,0580254910,0580254973;0580254942,0580 254 910,0580 254 973;893906091A,431906091B;431906091D,893906091E. Constructed from high-temperature resistant plastic through precision manufacturing processes, this durable yet lightweight component withstands demanding fuel system conditions. Ideal for custom fuel pump assemblies, E85 conversions, and performance applications requiring secure electrical pass-through connections. Professional installation with a 3/4" drill bit is recommended for optimal results and leak-free performance.