Arrives before Christmas 
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Built-in LED lights on this 4-way flat connector let you know if power is being received from the tow vehicle. Separate lights illuminate to verify power to each function on your trailer for easy troubleshooting. Easy-to-grip, plastic construction.
Features:
Specs:
Reduce the frustration associated with troubleshooting trailer wiring problems with this lighted 4-way connector. It has built-in LED lights that help you determine quickly and easily if the issue is with your tow vehicle or your trailer. Just plug the connector into the 4-way flat on your vehicle. No need for separate testing tools. Then activate each function on your vehicle and a red light will come on if power for that function is being received by the connector. If there is power going into the connector for all of the functions, then you know that the problem is on the trailer end and you will need to check your trailer's wiring. Each function except for ground is represented by a separate light and the functions are labeled for easy identification.
California residents: click here
Average Customer Rating: 5.0 out of 5 stars (15 Customer Reviews)
Built-in LED lights on this 4-way flat connector let you know if power is being received from the tow vehicle. Separate lights illuminate to verify power to each function on your trailer for easy troubleshooting. Easy-to-grip, plastic construction.Very high quality plug and wiring. The led lights are awesome
Calling e- trailer is like calling a friend, curtious , friendly , and aim to please. Haven't used any of the items from my order yet, I will shortly . The order was on time and wrapped so good nothing was damaged .I will definitely call e- trailer for my next order.
Needed a replacement flat four harness for my motorcycle trailer. etrailer helped me to chose the correct product for my needs and rapidly processed and shipped my order. I tell all my friends if you have needs for your trailer, etrailer will solve your problems quickly and professionally.
I really like the built-in LEDs on this harness. This will help when a light isn't working and I'm not sure if it's from the vehicle or on the trailer.
These guys are the best! Just about every product imaginable, super service. Obtain alla my trailer stuff from etrailer.
Ole A.
12/9/2017
Great products! Super service! etrailer is my place for ever thang trailer related.
Have not installed the connectors but they are what I ordered.
Thanks
Easy to install and get it connected fast to old pigtail
Got what I ordered great site good info & video shipping was good also.
Easy order, quick deliver, order correct, who could ask for more?
Items were as described and fast shippi ng.
On time
Every time
fast shipping, plug was as advertized
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Richard
6/16/2019
Working Perfectly!!