Trailers require electrical hook-ups that make towing safer for you and others on the road. In fact, while each state has its own laws and regulations governing everything from size limits to weight restrictions, the one thing they all have in common is that your trailer must be wired for tail lights, brake lights and turn signals. This is accomplished by connecting your trailer to your vehicle’s electric system. Unfortunately, not all trailer electrical wiring is compatible with the wires of your car, truck, van or SUV. Fortunately, REESE® Towpower manufactures a full line of trailer electrical components for everything you need to get your trailer lights up and running for safe towing. We manufacture T-Connectors, wiring converters, wiring connectors, adapters, brake controls and more to make towing safe for you and the drivers around you. Best of all, our products install quickly and easily with simple do-it-yourself instructions.

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  • Adapter 7-Way to 4 or 5-Flat with LED Circuit Tester

    Adapter 7-Way to 4 or 5-Flat with LED Circuit TesterAdapter 7-Way to 4 or 5-Flat with LED Circuit TesterAdapter 7-Way to 4 or 5-Flat with LED Circuit Tester

    Part Number: 78118

    Product Description
    This REESE Towpower towing adapter converts a 7- way blade connector to a standard 4 or 5-way flat connector. It features highly visible, cool blue LED circuit tester for instant completed circuit confirmation. Not only can you adapt the trailer to vehicle fast, but you can be certain the connections are correct.


    • Easy to use
    • Compatible with both 4 and 5 way flat connectors
    • Strong durable construction
    • Corrosion resistant and tin plated contacts for long life
    • Compatible with plastic or metal connectors


    Looking for more product details? Download a brochure or application guide. Review our frequently asked questions or check out our helpful videos.

    Cequent Consumer Products offers a REESE Limited and a REESE Limited Lifetime warranty on some products. See our product warranty page for specific details.

    Cequent Consumer Products are distributed through our network of fine retail partners. Available in the United States and Canada you will find our top selling brands in stores and on the web. See our Network of Fine Retail Partners.

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