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4 Way Flat & 7 Way Round Trailer Wiring Tester Light Brake Tail Turn Signal

Quick Overview

Take the guess work out of connecting trailers!

Availability: Out of stock



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4-Way Flat Tester with LED and 7-Way Trailer Light Tester

    • Takes the guess work out of connecting trailers
    • Tests tail light, Stop/turn lights and ground
    • Plugs into the connector of the tow vehicle
    • Easy to see bright LED indicator lights
    • LED’s typically have a lifespan of 10+ years
    • Easy and quick to test trailer circuits on most trucks
    • Heavy duty nylon housing
    • Tests 6 separate trailer light functions: turn, brake, tail, stop, reverse and 12v

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