tow hook Towing Trailer Trailer Connector Light Converter USA 4 Pin to EUR 7 Pin Adapter Stop/Brake Signal Separating Cars - AliExpress
Trailer Wiring Connector - 7 Way Round Blade to 4 Way Flat | Meijer
4 Way Flat Trailer Y-Splitter Adapter Extension Harness – Nilight
Amazon.com: kitletsuit Combo Trailer Light Adapter 7-Pin Blade to 5- or 4- Pin Flat, with LED Trailer Light Wiring Circuit Tester 7-Way Blade and DC 12V Auxiliary Power Outlet, Weatherproof Covers Included :
Amazon.com: kitletsuit Combo Trailer Light Adapter 7-Pin Blade to 5- or 4- Pin Flat, with LED Trailer Light Wiring Circuit Tester 7-Way Blade and DC 12V Auxiliary Power Outlet, Weatherproof Covers Included :
Hopkins Towing Solution 4 Flat to 7 Blade Adapter
Reese Adapter 7 Way Round to 4 Way Flat in the Trailer Parts & Accessories department at Lowes.com
Smith-Victor 4-Pin XLR Female to Cigarette Lighter Plug 401990