Amazon.com: RED WOLF 4 Way Flat Trailer Circuit Tester Towing Brake Running Light Tester 4 Pin Connector with LED Indicator for Towing Hitch RV U-Haul Trucks 2PC : Automotive
CQT118409 4-Flat with Factory Style Taillight Harness | U-Haul
U-Haul 4-Way Flat | U-Haul
Plug-In Simple!® Wiring Kit 7 to 7:4 | U-Haul
Trailer Adapter (Nite-Glow) | U-Haul
U3112+Trailer+Wiring+Harness+U-Haul+4+Way+Flat+4f-uht for sale online | eBay