Name: Hopkins MFG 48503 Trailer Wiring Circuit Tester
Brand: Hopkins
SKU: 2Q6833NTQ5E4
Price: 57.78 CAD
Availability: InStock
Rating: 5 (11 reviews)

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Hopkins MFG 48503 Trailer Wiring Circuit Tester

Trailer Wiring Circuit Tester; Fits 7 Blade; Test Left/Right Turn/Brake And Taillight; LED Indicator Light; Without Dust Cover; Trailer End

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[This review was collected as part of a promotion.] Nice and sturdy plug. Very easy to read and hook up.  I really liked how it was color coordinated. Made the install easier.

Great product

walmart.com

[This review was collected as part of a promotion.] Works great to troubleshoot truck vs trailer side wiring issues.

Time saver

[This review was collected as part of a promotion.] easy to use and doubles ad an adapter

works

If you need to replace your plug this is the way to go. It will tell yuou if the signals fron your truck are present ant the connector. That way if you have light problems you know the problem in on the trailer.

Outstanding Idea

[This review was collected as part of a promotion.] Helps to quickly determine if its the vehicle or trailer side if there is issues. Lights on plug let you know if truck is giving power. Use these on all my trailers.

Makes it easy to diagnose trailer lights.

[This review was collected as part of a promotion.] Price was a little higher than Amazon.

It works perfectly well if you don't expect to run 12 gauge wires into the connector block inside the unit. 
It's simple and straightforward. I recommend using a shielded multi-conductor wire run like that from Stinger (Speedwire) or a quality OFC copper equivalent. Don't use cheap Chinese CCA wire - you will regret it.

Works great - just know your wire gauge limits

[This review was collected as part of a promotion.]