Iron Box L14-30P to CS6364C Power Cord Plug Adapter - Black, 10 foot, 125/250V, 10/4 SOOW Cable, 4-Pin, Part # IBX-6112-10 Connect an L14-30R generator receptacle to a 50A inlet box NEMA L14-30P Plug to CS6364 Female Connector 10/4 SOOW Outdoor Rated Wire 125/250V