Boat Trailer Wiring Circuit Testers

8 Items
 
4-Pole Flat Lead Tester
    Three LEDs illuminate to tell you if the four pole flat trailer connector on your tow vehicle is wired properly and functioning correctly.
    List price: $8.69
    Your price:
    $5.91
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    Seachoice Circuit Tester
      Features:Used to locate grounds, open circuits and shortsCan be used with 6 or 12 volt systems8" long wire with alligator clips.
      List price: $9.45
      Your price:
      $7.83
      In stock
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      Wesbar Circuit Testers
        Plug these testers into any car connector and you will have an instant test of running light circuits. Features LED display to show completed circuit …
        List price: $14.49
        Starting at:
        $11.36
        In stock
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        18IN TRAILER CONNECTOR WUNSIDE - Wesbar
          Conforms to all applicable SAE NMMA and TMA standards. Has 5' blue wire (auxiliary circuit) & a 4' white wire (ground).
          List price: $7.98
          Your price:
          $6.78
          In stock
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          7-Way Blade to 4 or 5 Flat with LED Circuit Tester - Cequent Trailer Products - Wesbar
            Easily adapt OEM 7-way blade connector to either 5-flat or a 4-flat connector, patent pending. Instantly checks electrical circuit for connectivity. …
            List price: $20.85
            Your price:
            $17.65
            In stock
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              Tester plugs into connector of tow vehicle and illuminates when the electrical connections are correct. Tests to SAE standards on flat 4-way …
              List price: $5.79
              Your price:
              $4.36
              In stock
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                For all 4 pole flat boat trailer plugs. Tests tail, stop/turn and ground connection.
                List price: $12.19
                Your price:
                $9.68
                In stock
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                Seasense EZ Trouble Shooter 4-Way Circuit Tester
                  Plug tester into vehicle's 4-way flat towing plug. Operate vehicles turn signals, lights and brakes. When power is present, that circuit's green …
                  List price: $4.79
                  Your price:
                  $3.99
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                  8 Items