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Hopkins Endurance Easy-Pull Harness with 4-Pole Flat Connector - LED Tester - Trailer End - 12"

Hopkins Endurance Easy-Pull Harness with 4-Pole Flat Connector - LED Tester - Trailer End - 12"

Item # HM48138
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In Use/Installed

Easily disconnect this 4-way flat trailer-end plug from your vehicle without damaging the terminals. Large grip ring provides maximum leverage when disconnecting. Built-in LED lights illuminate to verify power. Splices into your trailer's wiring. Lowest Prices for the best wiring from Hopkins. Hopkins Endurance Easy-Pull Harness with 4-Pole Flat Connector - LED Tester - Trailer End - 12" part number HM48138 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (2)
  • Q & A (3)
  • Videos (2)
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Hopkins Wiring - HM48138

  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Plug and Lead
  • Hopkins
  • 0 - 5 Feet Long
  • Grip Rings

Easily disconnect this 4-way flat trailer-end plug from your vehicle without damaging the terminals. Large grip ring provides maximum leverage when disconnecting. Built-in LED lights illuminate to verify power. Splices into your trailer's wiring.


Features:

  • 4-Way flat trailer-end connector plugs into the 4-way flat on your vehicle
  • Easy-to-pull ring makes 4-way easy to disconnect
    • Ring handle makes it easy to pull connector straight back for proper leverage
      • No wiggling plugs or damaging terminals
    • Wide handle makes it easy to grip connector
  • Built-in, red LED lights offer easy troubleshooting
    • Illuminate to verify that the connection is working
    • Labeled for each function on your vehicle
  • Simple installation - hardwire to existing trailer wiring
  • Corrosion-resistant terminals are long-lasting


Specs:

  • Ring inner diameter: 1"
  • Ring outer diameter: 1-7/8"
  • Wire gauge:
    • Ground: 16
    • Turn/brake/tail light: 18
  • Wiring harness length: 12"
  • Wire configuration:
    • White: ground wire
    • Yellow: left turn/brake light
    • Green: right turn/brake light
    • Brown: tail lights
  • 3-Year limited warranty


Easy-Pull Ring Handle Is Easy to Grip and Pull

Easy Pull

Standard 4-way flat plugs have a small surface area to grip when you are pulling them apart, forcing you to wriggle the plugs back and forth to loosen them. Some users even pull on the wires. This can lead to broken terminals or ripped wiring. With the Easy-Pull harness, the plug has a large grip ring designed to make disconnecting a snap. Simply slide your finger into the ring and pull the plug away from the opposite plug to disconnect.


Easy Pull Rings

The Easy-Pull is also available as a vehicle-end 4-way flat plug. Combine the Easy-Pull trailer-end plug and vehicle-end plug for the easiest possible disconnection. With ring handles on both connectors, disconnecting is as simple as gripping the rings and pulling straight apart. No wriggling, no broken terminals, and no damaged wires.


Built-In LED Lights Illuminate to Verify Your Connection is Receiving Power

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 your trailer connection is receiving power from your tow vehicle. 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, but your trailer's lights are still not working, 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.



48138 Hopkins Easy Pull 4-Pole Flat Trailer Wire Harness with LED Test Lights - Trailer Side - 1' Long






California residents: click here


Video of Hopkins Endurance Easy-Pull Harness with 4-Pole Flat Connector - LED Tester - Trailer End - 12"

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




Video Transcript for Hopkins Wiring - Trailer Connectors - HM48138 Review

Today we're going to be taking a look at the Hopkins Endurance Easy Pull Harness with the 4-Pole Flat Trailer Connector. The 4-way flat trailer connector plugs into the 4-way flat on your vehicle. It's going to feature the easy to pull ring that makes it very easy to disconnect the plug. The ring handle makes it easy to pull the connector straight back for proper leverage. What that does is it eliminates the need of having to wiggle it loose, so your terminals are protected, your wiring's protected, and the connectors are going to last much longer than a standard one. It's just got that nice, easy grip design. Gives you the proper leverage so you can pull it straight out without causing any type of damage.

The wide handle offers a nice, easy grip design to it, and this one's going to have the built in LED tester, so it's going to have the built in LED lights that offer easy troubleshooting. These will illuminate to verify that the connection is working, and they are labeled for each function on your trailer. You're going to have TM, which is going to be your taillights or marker. LT for left turn, RT for right turn. Then when you apply your brakes both RT and LT should light up. Nice, simple installation.

Simply hard wires to the existing trailer wiring. It's going to feature corrosion resistant terminals that are long lasting, and it's going to come with a dust cover, that way you can cover up your connection points when the plug's not being used. It's going to come with some terminal grease. This gets applied to the terminals and protects them from corrosion. When it comes to the ring diameter, the inner diameter is going to be about 1 inch.

Outer diameter is going to be about 1 7/8 of an inch. Wiring harness length is about 12 inches long. When it comes to the configuration of the wires, they're all labeled, but there's going to be a black wire with a white stripe, that's your ground wire. Yellow is left turn and brake, green is right turn and brake, and your brown wire is for your taillights. That's going to do it for today's look at the Hopkins Endurance Easy Pull Harness with the 4-Pole Flat Connector for the trailer end.


Customer Reviews

Hopkins Endurance Easy-Pull Harness with 4-Pole Flat Connector - LED Tester - Trailer End - 12" - HM48138

Average Customer Rating:  4.0 out of 5 stars   (2 Customer Reviews)

Easily disconnect this 4-way flat trailer-end plug from your vehicle without damaging the terminals. Large grip ring provides maximum leverage when disconnecting. Built-in LED lights illuminate to verify power. Splices into your trailer's wiring.

- HM48138
by:

Good price. Fast delivery. Thanks. 567743



- HM48138
by:

The connector was easy to adapt to the trailer wiring. But not sure what or how the cap was supposed to be part of the fix. Had to keep it separated. 401469


Comments
Thank you, and everything still working great. I still browse your site checking out items.
Ed L - 07/06/2018

40544
2
2

Ask the Experts about this Hopkins Wiring

  • Recommended 4-Way Flat Trailer Connector with Pigtail
    I recommend using one of the Hopkins Easy-Pull 4-Way Flat harnesses. These have a connector with a loop in the middle that makes disconnecting your trailer wiring from your tow vehicle much easier than a standard 4-Way Flat connector. The wiring is also labeled which helps with the installation. This comes in a 12" version as part # HM48114 and a 48" version as part # HM38134. We also have the 12" part # HM48138 which has an integrated LED tester. I recommend using 16 Gauge Butt Connectors...
    view full answer...
  • Trailer Connector Needed That is Compatible with the Curt Adapter # C57674
    If you are looking to add a 4-Way on your trailer to activate the basic trailer light functions then I recommend installing the Hopkins Endurance Easy-Pull Harness # HM48138 which features a ring design to easily disconnect the connector. It also has the wiring labeled as to what wire goes to what function for easy installation. For a 7-Way on your trailer I highly recommend going with a 7-Way that has a junction box like part # 277-000141. The junction box has terminals that you connect...
    view full answer...
  • What is the Wire Gauge Used on Hopkins Endurance Easy-Pull 4-Way Trailer Connector # HM48138
    I went out to the warehouse to check the wire gauge used on Hopkins Endurance Easy-Pull 4-Way # HM48138. The ground wire is 16 gauge and the light wires are all 18 gauge. These are common sizes used on 4-Way harnesses.
    view full answer...

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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Video Edited:
Dustin K
Installed by:
Cole B
Installed by:
Shane H
Updated by:
Sarah W
Written by:
Alexander C
Video by:
Zach D

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