Trailer-Connectors > Trailer-Accessories

Trailer Light Testers

Trailer light testers are convenient tools for reassuring or aiding in the testing of vehicle wiring circuits. Each connector plugs into either a 4 way or 7 way LED circuit tester. Establish confidence that your trailer lights are working efficiently by testing them before heading out on the road with a trailer light tester.

4-Way Tester

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