4-Way Trailer Circuit Tester

[S078-560776]
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Manufacturer's Number: 64778
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Trailer light problems are easily identified by plugging this tester into your existing car-end connector. Also helps to properly install a 4-way connector without a trailer attached. Priced each.
WARNING: This product may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov