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Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector - Trailer End - Jacketed - 48"

Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector - Trailer End - Jacketed - 48"

Item # HM38134
Our Price: $22.76
Trailer Wiring
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Shipping Weight: 0.36 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. Harness splices into your trailer's wiring. Durable cable covering resists damage. Great Prices for the best trailer wiring from Hopkins. Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector - Trailer End - Jacketed - 48" part number HM38134 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (115)
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Hopkins Trailer Wiring - HM38134

  • 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. Harness splices into your trailer's wiring. Durable cable covering resists damage.


  • 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
  • Protective cable sleeving is durable and insulated
  • Simple installation - hardwire to existing trailer wiring
  • Corrosion-resistant terminals are long-lasting


  • Ring inner diameter: 1"
  • Ring outer diameter: 1-7/8"
  • Wiring harness length: 48"
  • 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.

38134 Hopkins Easy Pull 4-Pole Flat Trailer Wire Harness with Jacketed Cable - Trailer Side - 4' Long

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector - Trailer End - Jacketed - 48" - HM38134

Average Customer Rating:  4.7 out of 5 stars   (115 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. Harness splices into your trailer's wiring. Durable cable covering resists damage.

by: 04/01/2024

Love this connector! I have rheumatoid arthritis so my hands aren't as strong as I'd like and I have trouble with regular 4-flat connectors. I can get a good grip through the pull loop on this and get the leverage I need to take connect and disconnect.


Perfect for my utility trailers with a 4 pole plug.


The parking lights did not work after installation. Tested with multimeter found a short in the brown wire. A cheap product would not recommend.

Etrailer Expert

Brooke M.


I will have our customer service team reach out to you about this. Thanks for letting us know!


The harness connected well with the other components and the plug mates easily when hooking up the trailer with the tow vehicle.


Great product, hope it last a long time, the old wires were getting a bit worn out. I really like the loop to make it easier to unplug without putting too much strain on the connector.



It did well for a while, but within a few months, the pins began bending from just the weight of the small flap on my Ram pickup that covers the 4-pin connector. I switched to using a big 7-pin to 4-pin adapter and it lasted a couple more years. This weekend, it finally gave up the ghost and one of the pins came off in the adapter. I was able to fish it out and wired up an old plug I had stashed away just in case. Im trying to decide if I should buy another, but am not too sure I want to spend so much for something that will need to be replaced as often as a $2 plug!


Really like the heavier construction jacket and pull ring since it will be installed on a snowmobile trailer.


Exactly what I wanted! Fast delievery!


The wiring was just what I needed and the shipping was quick. I will definitely be using etrailer more in the future.


Absolute hot garbage. Arrived defective and never worked. A complete waste of money. If i could give zero stars i would. For $20 for a 4 pin plug you would think they test them before shipping.

Etrailer Expert

Jenny N.


Goodness me! This 4 pin connector does have a 3 year warranty. I will have our Customer Service team reach out to you.


The Hopkins 4 way trailer wire connector is very well designed and manufactured. It is enough of an improvement over a standard connector that I recommend replacement of an undamaged standard connector.


Allows for easy insertion and removal without pulling on harness. Works great!


This is a great product, solid and great quality. Three things that would help the consumer. First thing would be to add solder-less connectors. Next thing would be to have about 6-8” of exposed wire to work with when coupling. And last thing would be to furnish a dust cover for the plug end.



I couldn’t be any more happy. It has held up to many fishing trips on my boat trailer, great!


So much easier to use with the large pull handle. Great for use when your Trucks harness is in a tough to reach place



Still a great harness. Very durable





Nice solid, molded grab handle. I’m switching all my 4 wire trailers over to these harness. Well made

Ray C.


Have not had one issue in the year since I installed them. A+. Worth the extra cost


This is a great solution to a 4 wire plug for my trailer! Regular 4 wire plugs tend to fatigue over time. This rugged design is sure to last many years


Not as durable as I thought it would be. I like the open hole design for easy plugging and removing, but the connection pins to the assembly themselves are subpar. I have a folding tongue and secured this onto a holder, when closing the arm, it folded the pins downward. After realizing the interference, i moved it to an upward position to allow for clearance but the damage was done. The pins bent and are now loose. Had to replace the entire harness.


This connector is much more robust than standard flat pigtails. I particularly like the sheathed cable rather than the exposed flat four-wire.



Working perfectly. The hole pull works far better than yanking on the wire leads when disconnecting


Love the finger loop. Next time I need to replace my trailer light plug this will be my choice.



Excellently. Love the ring!


Part as described and will meet my needs


Exactly what I wanted. Excellent quality. Couldn’t find it anywhere. Etrailer had it !



Still working as new.


A real upgrade to typical 4 wire trailer connectors. If you are doing any trailer wiring I strongly recommend this replacement.

Well made with an integrated cover like a outdoor extension cable the ring makes it easy to hold when inserting or removing the connection from your vehicle.

It would be perfect if it came with the very fine cover that Hopkins includes with most other variations of the "ring" style connector.


very heavy duty trailer pigtail cable. This is what I need to prevent kinks and breaks in the wiring harness. Nothing like hooking up trailer lights that dont work because the wiring is easily damaged.


Well made unit that makes it easier to connect and remove from tow vehicle. Lead is 48" long but would be better if a little longer, maybe 60 or 72" to facilitate connection to tow vehicles with extended hitches or trailers with long tongues. Would be fantastic if the monitor/test lights were included on connector.


Heavy Duty Trailer plug for my boat trailer! Fast shipping!


I have purchased these ones before, for our fleet of trailers. Great quality cable and easy to plug in/out of vehicle. I stock a couple of these for repairs.

Show More Reviews

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