Hopkins 4-Way Flat Trailer Connector w/ LED Test Lights - Trailer End - 24"

Hopkins 4-Way Flat Trailer Connector w/ LED Test Lights - Trailer End - 24"

Item # HM48133

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Hopkins Wiring - HM48133
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  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Plug and Lead
  • Hopkins
  • 2 Feet Long
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. Lowest Prices for the best wiring from Hopkins. Hopkins 4-Way Flat Trailer Connector w/ LED Test Lights - Trailer End - 24" part number HM48133 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


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  • Reviews (10)
  • Q & A (10)
  • Videos (1)
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Hopkins Wiring - HM48133

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:

  • 4-Way flat trailer-end connector plugs into the 4-way flat on your vehicle
  • Built-in, red LED lights offer easy troubleshooting
    • Illuminate to verify that the connector is receiving power from the tow vehicle
    • Labeled for each function on your trailer
  • Easy-to-grip tabs allow for simple plug in and disconnect
  • Durable plastic construction
  • Corrosion-resistant terminals withstand the elements
    • Terminal grease is included


Specs:

  • Wiring harness length: 24"
  • Wiring configuration:
    • Green: right turn signal (RT)
    • Yellow: left turn signal (LT)
    • White: ground
    • Brown: tail light and side marker lights (TM)
  • 90-Day limited warranty


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.



48133 Hopkins Plastic Trailer Connector with LED Test Lights - 4 Way Flat






California residents: click here


Video of Hopkins 4-Way Flat Trailer Connector w/ LED Test Lights - Trailer End - 24"


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Wiring - Trailer Connectors - HM48133 Review

Today we're going to be reviewing part number HM48133, this is the Hopkins 4-Way Flat Trailer Connector with the LED Test Lights. Now the 4-Way Flat Trailer End Connector is going to plug into the 4-way flat on your vehicle. It's going to feature the built in red LED lights. These are going to offer easy troubleshooting. They're going to illuminate to verify that the connector's receiving power from the tow vehicle and they are labeled for each function on your trailer. The plug here is a nice, easy to grip, tabs here on the side, so that's going to allow for a simple plug in and disconnect. Get a nice secure grip on the finger tabs there.

It's also got a nice little textured surface on this area as well for that same reason. Now this going to be made from a durable plastic construction. Everything's going to be sealed. It's got a nice rubber coating on it, so again, it allows us to get a nice, easy grip. It's going to be weather resistant, so it's going to stand up well against the elements. The terminals are going to be corrosion resistant design, so they're going to withstand the elements as well.

Now all the wires are going to be labeled with their function: your white wire's going to be your ground, yellow wire's going to be for your left turn, green is going to be for your right turn, and then brown is going be for the taillight and side marker lights. The length that this going to offer is going to be 24 inches. I'd like to go ahead and hook it up to our external power source, that way you can see the LED lights function and help us determine whether or not we're getting power to the correct signals. You can see here I just have the ground hooked up, as well as my taillight and side marker light, so that's going to be this light right here. Now if I connect, I'm going to do our left turn, so you can see there now I have two indicators shinning. I'll go ahead and throw in the other turn signal as well and this going to have all three indicators sending out a nice, strong, consistent signal. That's going to do it for our look at part number HM48133, this is the Hopkins 4-Way Flat Trailer Connector with the LED Test Lights.

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Customer Reviews

Hopkins 4-Way Flat Trailer Connector w/ LED Test Lights - Trailer End - 24" - HM48133

Average Customer Rating:  5.0 out of 5 stars   (10 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.

- HM48133
by:

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. 327415



- HM48133
by:

On time Every time 618024



- HM48133
by:

Easy order, quick deliver, order correct, who could ask for more? 579011



- HM48133
by:

Very high quality plug and wiring. The led lights are awesome 520796



- HM48133
by:

Have not installed the connectors but they are what I ordered. Thanks 471143



- HM48133
by:

Items were as described and fast shippi ng. 405855



- HM48133
by:

These guys are the best! Just about every product imaginable, super service. Obtain alla my trailer stuff from etrailer. 320773


Comments

Great products! Super service! etrailer is my place for ever thang trailer related.

Ole G - 12/09/2017

31606

- HM48133
by:

fast shipping, plug was as advertized 314290



- HM48133
by:

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. 291893



- HM48133
by:

Got what I ordered great site good info & video shipping was good also. 266907


10
10

Ask the Experts about this Hopkins Wiring
Do you have a question about this Wiring?


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  • All of the wires on the Hopkins 4-Way Flat Trailer Connector # HM48133 are 18 gauge except for the ground wire, which is 16 gauge. As for the Optronics 20 ft. Wishbone 4-Way Trailer Wiring Harness # A20WB all of the wires are 20-AWG gauge. I've added links to video reviews of both products for you to take a look at.
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  • Can the 4-Way part # HM48133 Attach to Trailer with 2 Brown Wires
  • Your trailer has two brown wires because the running light circuit goes to both sides of your trailer. You would just want to connect both wires into one end of a butt connector like part # 05732-2 and then have the single brown wire of the # HM48133 run to the other side. Be sure to crimp these connections very tight.
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  • The wishbone harness with the shortest amount of wire lead has 20 feet of wire and a 30 inch ground wire, the Optronics 20 Foot Wishbone 4-Way Trailer Wiring Harness # A20WB. I wish we had a shorter option for you but our manufacturers don't offer a wishbone harness with a shorter lead. I double checked with Optronics and the 20 ft lead is the shortest they offer with a wishbone harness. If you'd rather use a connector with a shorter lead, the connector with a lead closest to the 18...
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  • What Gauge Wire is Used On Hopkins 4-Way Flat Trailer Connector w/ LED Test Lights
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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Photos by:
Sam P
Written by:
Chelsea B
Updated by:
Alexander C

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