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Nilight 4-Way Flat Trailer Wiring Tester 4 Pin with Bright Indicators Male & Female Double End Design Nickel-Plated Copper Terminals Light Wire Circuit Tester for Turn Signal Tail Lights

Free shipping on orders over $29.99

$8.99

$ 3 .99 $3.99

In Stock

1.Color:4-way Flat Trailer Wiring Tester


  • Rugged Nylon Housing: Excellent water resistance, high temperature resistance, wear resistance and corrosion resistance, extend the life of the product.Fit Type: Universal
  • Strong Fixation: Standard plug internal design with strong fixing, 7-pin can hold the adapter in place, no need to worry about it will fall off
  • Practical Design: Easy to carry, small size, can be stored in a glove box or tool box, no need to take up extra space
  • Easy Installation and Disassembly: Simple plug-and-play, reasonable structural design in case that you can easy to install or removal our trailer adapter with no tools
  • Wide Adaptability: It can use for commercial vehicle / semi-trailer / trailer, no need for multi plugs to tow various vehicles, it is very practical for drivers.


7 pin to 4 pin Trailer Adapter Plug Product Practicality: For most drivers may come across thesituation that the connection between your vehicle and your trailer can’t matchperfectly for towing. For example, your commercial vehicle may be equipped witha 7-way round socket, but your trailer may have a 4-way flat plug. For thisvery common problem, Nilight 7 pin to 4 pin Adapter offers the best solutionfor you. Scope of application: This 4 way trailer adapter plug worksfine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM, Toyota or GMC. 7 way round (tow vehicle end) to 4 pin flat(trailer end). Note: Please confirm the right size of theadapter before placing an order Package Included: 1x 7 pin to 4 pin Trailer Adapter


Chris
Reviewed in the United States on January 30, 2025
This was a great purchase, great value and came exactly as described, No regrets at all and highly recommend.
Tony P.
Reviewed in the United States on July 24, 2024
If you hate overpaying for products you won't use to often than this is the product for you! Very easy to install, and the wings on the side makes it easy to grip and pop out when not using. When I told the guy at uhaul how much I paid for it, he went and ordered him one on the spot, or so he said he was. Works just as good as the higher priced options and still holding on strong.
HenV
Reviewed in Canada on June 9, 2024
My car car is 7 pin and utility trailer is 4 flat. Works perfectlyFits snuggly into the 7 pin from car and there is no worries about it falling off during transit
Miss Claire Svastal
Reviewed in Canada on June 3, 2024
Plug it in and forget about it.
Keith Rule
Reviewed in the United States on May 9, 2024
I bought this to validate that the factory-installed connector on my new car works correctly. This showed that it does. However, the connector on my car is keyed, so the LEDs are face-down when installed. I'm unsure if the car connector is upside down (but looking at online diagrams suggests it might be). The trailer connection won't care, but for this tester this makes it hard to check while plugged into my car.The bottom line is that the tester works (but is awkward when testing on my car). My car connector is operating correctly (though maybe upside down).So, the tester met my needs and was very inexpensive. It also showed that I'm fairly ignorant of current wiring standards (I'm used to the older 4-pin connectors). Like always, there's more to learn.
John L
Reviewed in Canada on May 5, 2024
Arrived quick and connections were much better then the factory 1
Grayson
Reviewed in Canada on March 12, 2024
Solid product and works no problems. Would definitely buy again
David G Franks
Reviewed in the United States on December 30, 2024
Good value
Judy F
Reviewed in the United States on December 13, 2024
Works good
ASW
Reviewed in Canada on November 9, 2024
10+++
JD
Reviewed in the United States on November 3, 2024
Seems to be well made.
Chris Ibbetson
Reviewed in the United States on November 2, 2024
Great quality for the price. Works perfectly
Indiana Dad
Reviewed in the United States on October 19, 2024
Great, snug fit and works well. I like the lights on top to verify that trailer lights are working properly.
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