Amazon.com: Tallew 2 Pack 7 Pin to 4 Pin Trailer Light Adapter with Mounting Bracket 7 Way to 4 Way Round RV Blade Trailer Wiring Adapter for Car Truck Towing Solutions : Automotive
Amazon.com: CXTM 7 Way Blade to 4 Way Flat Trailer Connector Single-Function Wiring Adapter, 7 pin to 4 pin Trailer Adapter : Automotive
Amazon.com: Trailer Wiring Adapter, 7-Pin to 4-Pin YMZ500480 for Land Rover Defender, Discovery, and Range Rover : Automotive
Amazon.com: YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions : Automotive
RT Trailer Hitch Harness for the RT 2018-2023 - CanAmSpyderAccessories
Adapters
12v 4 Pin Us Trailer Hitch Wiring Cable Tow Harness Power Controller Plug American Car Modified Trailer Plug For For Trailer Rv - Cables, Adapters & Sockets - AliExpress
TowSmart 7-Way Blade to 4 or 5-Way Flat Trailer Light Wiring Adapter 1426 - The Home Depot