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  1. Custom Fit Vehicle Wiring
  2. Hopkins
  3. 4 Flat
  4. Trailer Hitch Wiring
  5. Custom Fit
  6. No Converter
Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # HM42605
Retail:$36.59
Our Price: $25.71
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring HM42605 - 4 Flat - Hopkins
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting or splicing required. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number HM42605 or order online at etrailer.com. Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (22)
  • Q & A (0)
  • Videos (1)
  • Photos

Hopkins Custom Fit Vehicle Wiring - HM42605

  • 4 Flat
  • Trailer Hitch Wiring
  • Custom Fit
  • No Converter
  • Hopkins

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting or splicing required.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing
    • Locate connection points in rear cargo area
    • Plug in connector
  • Protective connection terminals resist corrosion
  • Comes with dust cap for 4-way flat connector, cable ties, and terminal grease packet for electrical connections
  • 90-Day limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, on the driver's and passenger's side. You will have to lower the mud flaps behind your rear tires to access this harness.


Once installation is complete, the 4-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.



42605 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM42605 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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




Video Transcript for Hopkins Custom Fit Vehicle Wiring - Trailer Hitch Wiring - HM42605 Review

Today we are going to be taking a look at the Hopkins plug in simple vehicle wire and harness with the 4-pull flat trailer connector. This product fits a 1991 to 1997 Jeep Wrangler, a 97 Jeep TJ, and a 91 to 95 Jeep YJ. It's going to provide a 4-way flat connector at the back of the vehicle to power your trailer signal lights. This is compatible with 5-pull, 6-pull, and 7-pull adapters. The adapters are sold separately. It comes with a dust cap, that way you can cover up those connection points when your plug is not being used. The unit's going to feature protective connection terminals to resist corrosion.

This is going to connect quickly and easily. All you have to do is locate the connection points in your rear cargo area. There is no cutting or splicing required. Locate the connection points. The connector with the green wiring is going to go to the passenger side, the other connector with the yellow wiring is going to go to the driver side.

Locate those and simply plug in your connectors. These are custom fit. They are going to match up perfectly with the ports on the vehicle and they are going to snap lock together for a nice, tight, secure fit. Once you have those connected, you'll need to make a ground connection, that is going to be your white wire. It has a ring terminal already attached to it. You want to get that grounded to a nice clean metal surface with the included grounding screw.

Once your installation is complete, the 4-way connectors are going to be stowed beneath the vehicle near the trailer hitch. We always recommend using a mounting bracket if possible. A mounting bracket is sold separately, but that is really going to do a good job in keeping the connectors secure and easily accessible. If you are in need of something like that, you can check out some options at e-trailer.com. It's also recommend that you use a small amount of grease on all of your electrical connections, like the plugs on the vehicle and the 4-pull connector itself. That's really going to help prevent corrosion to the connection points.

The grease packet is included with the kit. That's going to do it for today's look at the Hopkins plug in simple vehicle wire and harness with the 4-pull flat trailer connector.


Customer Reviews

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - HM42605

Average Customer Rating:  4.9 out of 5 stars   (22 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting or splicing required.

by:
1997 Jeep TJ

Good wiring harness but it doesn't work with the mounting bracket I ordered.

Etrailer Expert

Jenny N.

2/7/2024

I checked and saw that you had bought the # 18144 mounting bracket. This bracket does not work well with Hopkins branded harnesses. I recommend taking a look at part # HM48595 instead.



by:

Fit like it should. plug and play once you get the mud flaps out of the way.



by:

The product was truly plug and play. The hardest part was routing the wires and that wasn't too bad. Shipping was quick.



by:
1993 Jeep Wrangler

I needed to put wiring on my 1993 Jeep Wrangler which had a tow package but no wiring.. the adapter kit worked perfectly with no splicing, just unplug the exiting wiring under each taillight and plug your ready to go..it came with a 4 pin which I then plugged into another part which then gave me 4 pine and a round 6 pin which matched my trailer wiring perfectly...



by:
1997 Jeep Wrangler

I ordered a plug in harness and a 4 to 5 adapter. Both of which were installed on my 97 Jeep Wrangler which had A LOT of old dirt and grime from off-roading etc. The entire process was a little more than an hour while Cleaned our all that old dirt and gunk. All in all the process was extremely easy and should be able to be accomplished by most people. Also, 1 year after the installation and everything is still working great.



by:

Customer service at etrailer was great shipping was fast and reasonable Have to install the product but looks of good quality associated with the hopkins products



by:
1995 Jeep YJ

Great product!! Very easily installed on my Jeep Wrangler



by:

Took no time at all.. use a fishtape to pull the harness along the factory loom..



by:
1997 Jeep TJ

Great product, Installation was less than an hour.



by:

Worked out great...



by:

Easy to install. Worked great on our Wr angler!



by:
1997 Jeep Wrangler

Product installed quickly and easily. Works perfectly



by:

It was an exact fit had no issue installing it on my jeep



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1991 Jeep Wrangler

Great service, thanks !



by:

Easy install and good quality.



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Easy to install. Good fitment.



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See what our Experts say about this Hopkins Custom Fit Vehicle Wiring

  • Trailer Hitch That Fits 1997 Jeep Wrangler
    There is a Class III 2" hitch that is a fit for your 1997 Jeep Wrangler, but that guy # DT78MR won't work. Instead I recommend the Curt # 13408, which has a maximum tongue weight capacity of 400 lbs and max towing capacity of 4,000 lbs. It is a bolt-on installation so no drilling will be required. For wiring to add a 4-way you need the Hopkins # HM42605 which is a plug-in connector so you will not need to do any type of splicing. If you are going to be towing, I recommend checking out...
    view full answer...
  • Trailer Wiring Harness for a 1997 Jeep Wrangler
    All of the trailer wiring harnesses for your 1997 Jeep Wrangler install and operate the same way. I would not say that one is better than another since this application does not require any sort of special converter. We hear about less issues with the Tekonsha harnesses, in this case # 118356, so if it were me that is the one I would go with. It will provide the basic light functions for a trailer. I have linked a video showing an example installation for you.
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Cole B
Installed by:
Cole B
Employee Alexander C
Written by:
Alexander C

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