Neilsen 12V Trailer Socket Wiring Tester | 7 to 13 Pin Towing Light Test Tool

Neilsen CT4691 12V Trailer Wiring Socket Tester with 7–13 Pin Adapter. 1 x Neilsen CT4691 Trailer Socket Tester. Quickly and easily test your vehicle’s towing electrics with theNeilsen Trailer Socket Tester.

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