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Seadog 4 Wire Inline Trailer Plug Tester

$5.18


SD-753841 -
(shown plugged into pigtail which is not included)

PVC Inline Trailer Plug Tester (4 wire)

LED lights indicate complete circuit. Excellent for troubleshooting. Add this tester to your system and leave it there. One end plugs into your vehicle, the other into your trailer pigtail. Quickly determine if the problem is in the vehicle or the trailer.

 

 
 

 

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