CURT Electrical Adapter (6-Way Round Vehicle to 4-Way Flat Trailer) 57620 - Advance Auto Parts
4 to 7 Pin Adapter Trailer Light 4-Way Flat Truck to 7-Way Blade Plug Connector | eBay
Hopkins Towing Solutions Trailer Electrical and Wiring Adapter - Geared for Weekend Tow, Prewired for Easy Installation in the Trailer Parts & Accessories department at Lowes.com
Amazon.com: Oyviny 7 Pin Round to 4 Pin and 5 Pin Flat Blade Trailer Adapter, 7 to 5 Pin Trailer Plug Adapter 2-in-1 Design : Automotive
Husky Trailer Wiring Connector Adapter; 7-Way Blade To 4 Flat
MICTUNING Trailer RV Boat Adapter 7 Way to 4 Way 5 Way Plug
7 Way Blade to 7 Pin Round Trailer Adapter Plug Socket Wiring Connector Car RV | eBay
Amazon.com: Trailer Plug Adapters 7 Pin to 4 and 5 Flat Blade Trailer Connector for Trailer Tow Hitch, Weatherproof : Automotive
Reese Adapter 7 Way Round to 4 Way Flat in the Trailer Parts & Accessories department at Lowes.com
Seven-Way Blade to 4-Way Flat Trailer Adapter
MaxxHaul 7-Way Round to 4-Way Flat Trailer Plug Adaptor with 18 in. Flexible Cable Extends to 36 in. 70086 - The Home Depot