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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
Retail:$25.11
Our Price: $8.82
You Save: 65%
Trailer Wiring
Shipping Weight: 0.2 lbs
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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. Great Prices for the best trailer 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 1-800-940-8924 for expert service.
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  • Reviews (11)
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Hopkins Trailer Wiring - HM48138

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

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


Customer Satisfaction Score:


Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (11 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.

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Working perfectly



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The lead wire could be longer amble heavier gauge otherwise good!



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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.

Ed L.

7/6/2018

Thank you, and everything still working great. I still browse your site checking out items.



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Works as it should. Very handy.



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Very fast delivery.



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Good price. Fast delivery. Thanks.



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11
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See what our Experts say about this Hopkins Trailer Wiring

  • 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...
  • Recommended Wiring Harness for 2019 Toyota RAV4
    The # 118801 and # C56434 are both confirmed to fit the 2019 Toyota RAV4. However, if you have the EU model of the RAV4 there is no guarantee these will work with your vehicle. As far as functionality is concerned, these two options are the same. However, the best choice is the Tekonsha # 118801. We have found Tekonsha to be the most reliable when it comes to wiring so I would always choose their wiring harness if one is available. The # 118710 is specifically designed for the Land Rover....
    view full answer...
  • How To Identify Functions Of Trailer Wiring With White, Yellow, Green and Red Wires
    The most logical explanation is the shop that built the trailer used a red wire in place of the brown but as not all shops have to abide by a particular set of wire colors on trailers it is best to ensure what the wires run to. You can determine the wiring functions by either tracing the wiring or using a battery to jump the wiring and verify its functions. Typically on 4-way wiring the white is the ground which will run to every light or it will connect to a ground on the trailer. The...
    view full answer...
  • 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...
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  • 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 # HS381-9000. The junction box has terminals that you connect...
    view full answer...
  • Replacement 4-Way Flat Wiring Connector For a 2010 Palomino Pony Popup Camper
    We do have the Hopkins Endurance Easy-Pull Harness # HM48138 you can use to splice into your existing wiring. I do recommend looking over the wiring first as you may be better off replacing the whole Harness # A35W42B if there is damage to any of the wiring.
    view full answer...
  • Does My 1998 Eagle Boat Trailer With Tandem Axles Have Hydraulic or Electric Trailer Brakes?
    It sounds like you have coupler like the Dexter Zinc-Plated Brake Actuator # T43397007K and hydraulic surge brakes on your 1998 Eagle boat trailer. This particular coupler is specific to drum brakes but there are similar units for disc brakes Item # T47457007K. The 4-Way Wiring # HM48138 on your trailer will only control the lighting for the tail lights and running lights on the trailer. If you are needing replacement parts please send me images of what you have on your trailer along...
    view full answer...
  • Replacing 4-Way Flat Trailer Connector On Older Trailer
    Your trailer appears to have a wishbone style harness like the Harness # A35W42B where the brown wire is for any running/clearance lights, yellow wire is for the left turn signal/brake light and the green wire is for the right turn signal/brake light. If you are replacing the End Connector # HM48138 you will simply align your wires brown to brown, yellow to yellow, green to green and the white wire will connect to the ground wire which I do not see in your picture. You can always test...
    view full answer...
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Do you have a question about this Trailer Wiring?


Info for this part was:

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

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