Hopkins Towing Solutions 7 Blade to 4 Flat Flexible Adapter | 9851021 | Pep Boys
Amazon.com: 4 Flat to 7 Blade Trailer Light Adapter, Wiring Reverse Plug Connector with Mounting Bracket for Car Truck RV Side to Trailer Side Towing Solutions, RV 7 Pin to 4 Pin
Hopkins Taillight Adapter - 4-Flat to 7-Blade Round | Trailer Parts | Wakeboss®