Arrives before Christmas 
You're hooking up the trailer and the lights are dead. Could be the truck, could be the plug. This harness tells you fast. Built-in LEDs show what's live, and the grip makes it easy to connect even with cold hands. No guessing or wasted time.
This trailer-end 4-way harness includes integrated LEDs that light up when each function is powered. That means you can verify left, right, brake, and tail signals during setup. The molded ergo grip makes it easier to handle, even with gloves or cold hands. A 12" lead gives you flexibility to route it cleanly during install.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody. Andy here with etrailer.com. Let's take a real quick look at this TowSmart harness with four-pole flat connector with wire tester. Now, this four-pole flat trailer connector is designed for the trailer side, making it ideal for connecting the trailer's lighting system such as the tail lights, brake lights, and turn signals to the tow vehicle. As you can see here, this does include a cap here to keep those connection points clean when it's not in use, so that's a a nice addition that we see here. And with the one-foot wire lead, it's going to give you just enough length to reach your existing wiring setup, so this is gonna be ideal for short extensions or replacement.
And then, the key feature here is this does have a built-in wire tester. It's integrated into the plug, allowing you to confirm proper electrical connectivity before each use, so that's a great addition to this, makes it rather unique. That's gonna help reduce the risk of trailer lighting failures, improving safety, and ensuring compliance with road regulations. This is designed with heavy-duty materials, corrosion-resistant materials, obviously, so you're not gonna have to worry about this failing against the elements that it's gonna be exposed to. It does have this ergo grip here, so you're gonna be able to easily pull that out.
So, that is included in the housing there. So, this is gonna be great for utility trailers, boat trailers, and cargo haulers, just to name a few ways or a few types of trailers that you can use this on. If you do pick this up, we'd love to hear back from you regarding how this is working out for you. You can drop a comment or leave a review on this product page. But if you have any other additional questions, don't hesitate to reach back out to us.
We wanna make sure that you're getting exactly what you want and need. Well, that's gonna wrap up our quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
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Just what was needed to make an old wiring mess look nice, very good construction.
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