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Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors

Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors

Item # 30955
Our Price: $41.73
Custom Fit Vehicle Wiring

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Hopkins Trailer Hitch Wiring - 30955
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  • Reviews (309)
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Hopkins Custom Fit Vehicle Wiring - 30955

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • 7 Round - Blade
  • No Converter
  • Hopkins

Custom 7-Way US car connector (car end) fits trucks and SUVs equipped with factory socket.

  • Durable plastic shell
  • Provides Both a 7-Way and a 4-Way Covered Trailer Connector
  • Mounting Bracket Included
  • Visible wire measures 6-3/4" from vehicle end to trailer end
  • Measures 10-1/2" from vehicle end to back of trailer connector
Product detail

Close-up Picture of the Connector

Product detail

Picture of the OEM connector on a Chevy truck. The connector is located above the spare tire and simply plugs in to the 7-Way and 4-Way Replacement Connector.

40955B Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors


Installation Details 30955 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Video of Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors

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

Video Transcript for Trailer Wiring Harness Installation - 2005 Chevrolet Silverado

Today on our 2005 Chevrolet Silverado crew cab, we're going to install part number 30955. This is a replacement multi-tow 7-way and 4-way trailer connector. We're going to replace the original 7-pole connector That came with the vehicle. This is how it came to us, so you can see that the connector has seen better days. To remove our 7-pole connector, there's a tab right here that we push down and pull out. Sometimes there may be a little gray tab or a lock that fits around this.

You just push down in the center of it and just push it out of the way, then put it back when you're done. We don't have that one, so we'll just push down on this tab and pull it apart. This is our new part that's going to replace the OEM connector. This will simply just plug right back in, like this. However, we're going to take this and route it down towards the bottom of our hitch, toward our pre-existing mounting bracket. This is the bracket that comes with the part.

However, we're going to use the pre-existing one. A good location for this if you wanted to install it, would be right here. It does come with the hardware to install the bracket. However, self-tacking screws will work best in this application here. Let's go ahead and route our wire harness down.

Before we add our new connector, we'll go ahead and put some dilectic grease on the contacts to help protect them. We're using part number 11755. Let's go ahead and route this through our bracket. We'll go ahead and make our connection. We'll just push the two together, make sure they line up OK, and squeeze them until they click. Now we'll use the hardware that comes with the kit, to attach our 7-pole to the bracket.

With our hardware loosely assembled, we'll go ahead and tighten it down, using a flat-blade screw driver. Typically, this star washer on the back will give enough grip; we don't need a wrench. If you do, a 3/8 will work just fine. We'll go ahead and route our wire harness up and out of the way, make sure it's safe and secure with some zip ties. Zip ties don't come with the kit, so you might want to go ahead and get extra long zip ties to go around the hitch. In just a few minutes we've got a new 7-pole connector plus a 4-pole connector installed on our truck. That will do it for our replacement multi-tow 7-way and 4-way trailer connector on our 2005 Chevrolet Silverado crew cab. .

Customer Satisfaction Score:

Customer Reviews

Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors - 30955

Average Customer Rating:  4.8 out of 5 stars   (309 Customer Reviews)

2005 Chevrolet Silverado

Product exactly what I was looking for. Fit factory harness perfectly. Strong and rigid, appropriate mounting hardware. Perfect


Great fit works good has 7way rv plug and the regular flat 4 plug no need for adapters to lose or have stolen.

Been using this plug for a year now still working great
jason l - 09/19/2020


This muti-tow plug with the wire extension plugged right to the factory truck harness with enough length to mount under the service body's bumper. The local stores plugs would not work for this service truck.

2004 Chevrolet Silverado

Perfect! I used this on a single cab Chevy Silverado 1500. Plugged into factory trailer lights near spare tire, mounted it up, plugged in trailer and everything worked just like it should. My truck does not have a spare tire so I removed the spare tire keyhole mount and cut some of the bumper to fit the adapter. My truck did not require a ECM/PCM flash of any kind, although I hear some vehicles may have to.


I was having problems with my trailer breaks and lights. Finally figured out it was this pigtail. This one works awesome.


Easy to install and plug and play with factory harness. Should come with wire loom like the factory to protect the exposed wires. Luckily I had a piece to use.


The Curt Trailer Hitch Receiver was easy to install and has worked just fine in pulling my several trailers. For the price, an excellent deal. The 7-Way and 4-Way Trailer Wiring Harness Connector by Hopkins was a disappointment because the cap that doubles as a dust cover and latch to the adapter has come off and missing after a few months. This cap is not replaceable, the whole connector would have to be replaced.


This connector interfaces with truck wiring harness. It makes wiring to tow a snap.

2003 Chevrolet Silverado

Plugged into the existing wiring with no problems! Excellent product!


Perfect replacement easily installed shipping was quick very happy

2007 Chevrolet Silverado

Easy installation on my 2007 classic Silverado Chevrolet


Cut a hole out on the rear plate of the Tommy Lift and screwed it on. Plugged right into the provided plug from GMC.


Nice product ,Easy to install and then worked as supposed to . I installed in bumper as opposed to the add on bracket that came with it ,made for a easier way to plug in trailer cord.


Cathy T. was very good help. She set me up with the correct parts for our 2001 Chevy so we can have a 7 prong plug in at the bumper and in the box.
We got rid of the cobbled up mess that started giving us trouble and now everything works great. The plug and play took me about 1 1/2 hours to complete. We will do business again if needed. Thanks again Cathy T. and etrailer!


I installed this today. Took around 90 minutes but part of that was learning how to get the spare out of the way. I drilled two holes in the bottom of the bumper because of where I wanted the connector to be placed. All necessary hardware came with the unit. This was very easy to do after watching etrailer's How To video. Good job guys, great product.

2006 Chevrolet Silverado

in my case I have to say that first look at YouTube from there I got the video with the description of the process and the number of the part of there just went to I put the # alone went out it was really easy to send fantastic just wait 4 days in regular shipment for the installed only you see that plug it in thank you I hope that some more will serve..


It’s works as it should just wish the plastic at the area where the screws mount was a little more beefy.


I Liked the easy connection that Help me A lot.


The product was an exact one-for-one replacement. However, I ended up having to replace the female connector due to corrosion. This took a bit of time. The result was all new connections that work fine. Thanks for all your assistance.


Worked great.

2006 Chevrolet Silverado

I bought this 7 way trailer connector to replace a broken one on my 2006 Chevy 2500HD. It was an easy install and only took a few minutes to complete. I tested it with my trailer connected and all works fine.
The shipping was super fast.
Thanks , etrailer.


drop in replacement with the factory ha rness.


Unit worked well as advertised. Old connecter had to stay (was welded) so I mounted off center a foot away. Now it protrudes 2 inches.

I use it infrequently. When I do use it, it works well. It would not mount as per instruction because of the factory offered trail hitch assy. Looks catiwhompus but does the job.
Peter N - 04/22/2018

2007 Chevrolet Silverado Classic

Worked perfectly. Looks good. No complaints.

Probably would have been done in 30 min, if I could have gotten the old one off in a timely manner.

2007 GMC Sierra Classic

Hitch and wire harness fit great.
was 2 days earlier than expected.
Great job etrailer.

Show More Reviews

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

  • Under Hood Connections Required to Activate Tow Package Wiring on a 2008 Chevy Suburban
    There are some connections that you will need to make under the hood of your 2008 Chevy Suburban to make the tow package wiring fully functional. We actually have an FAQ article that I have linked for you that explains what to do. You will need the section near the end called Finalizing Connections for the Brake Controller. In the tow package wire bundle from under the dash, you will make the following connections to the brake controller: Tow package Red connects to brake controller black...
    view full answer...
  • Troubleshooting Trailer Passenger Side Stop Turn Circuit Not Functioning
    First thing I would do is ask your buddy what all he messed with, if you can get him to undo the damage he did to your trailer you will be in better shape. It sounds like the original problem you had was just a bad ground on the passenger stop/tail light. Typically light assemblies ground through their mounting hardware so ensuring this light is attached to a clean metal surface would be a great place to start and would most likely fix the problem. I attached a trailer wiring diagram for...
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  • Does the Cover on 4- and 7-Way Trailer Connector 30955 Lock the Trailer Connector In Place
    What your are describing is a common feature of most every 7-Way trailer connector including # 30955. They are designed that way for the exact reason you explain: it locks the connector into place so it cannot accidentally pull out.
    view full answer...
  • What are the Wire Functions on Hopkins Replacement Multi-Tow 7-Way and 4-Way Trailer Connectors
    The wire colors on the Hopkins replacement 7/4-Way trailer connector # 30955 are as follows: White is ground Black is 12 volt power Green is right turn/brake lights Yellow is left turn/brake lights Blue is output from a brake controller to trailer brakes Purple is reverse lights Brown is running lights
    view full answer...
  • Location for Installing Hopkins # 30955 Replacement Multi-Tow 7-Way and 4-Way Trailer Connector
    You are entirely free to choose an alternate mounting location for your new 7-way as long as your factory wiring harness can still reach its location. Your vehicle and trailer will not care on which side of the hitch their electrical connection is made. I do suggest you first make certain that your trailer connector can reach your new preferred location on the vehicle when the trailer and vehicle are hitched. You also need to be sure the OEM harness on the vehicle (with the round U.S. Car...
    view full answer...
  • Wiring Harness to a 2013 GMC Sierra Trailer Connector is Locked On
    I have included a link to a video that should help you. The wiring harness is connected to the trailer connector on your 2013 GMC Sierra with a white or gray lock. The easiest way to remove it is to use a very small flathead screwdriver and push/pry the lock out of position so you can then pull it out. Then there is likely to be a spot on the connector housing that you will need to push in while pulling out the harness at the same time.
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  • Availability of Trailer 7-Way and 4-Way that Can Have Both Connectors Used at Same Time
    For a similar 4-way and 7-way to what you referenced that uses the same round connector to install to the vehicle we have the Hopkins harness part # 30955 which has a lid design that allows you to access both at the same time.
    view full answer...
  • Troubleshooting Trailer that Illuminates Trailer and Vehicle Running Lights When Connected
    There must be a short on the wiring of the trailer you are towing or on the tow vehicle. Sounds like it has to do with the running lights and the 12 volt power circuit. Since it only happens when the trailer is connected I would expect it to be on the trailer side of the situation. Check out the 7-way wiring diagram I attached and compare that to how the 7-way of the trailer is wired. You would also need to look for obvious signs of a short like cut or exposed wiring or corrosion. If...
    view full answer...
    Image 1 for
  • Does Hopkins Replacement 7-Way and 4-Way Trailer Connector # 30955 Fit 2006 Silverado 1500
    Hopkins Replacement Multi-Tow 7-Way and 4-Way Trailer Connector # 30955 is a correct fit for your 2006 Chevrolet Silverado 1500 that came with a factory-installed 7-way. This replacement part connects to the round U.S. Car connector at your bumper and provides both a 4-pole flat and a 7-way RV-style blade connector for added towing flexibility. Installation in a 2006 Silverado is shown in the linked video.
    view full answer...
  • 7-Way Trailer Connector Recommendation for a 2006 Chevy Silverado
    Yes, the Hopkins 7-way part # 30955 that you referenced would fit and work well as a 7-way trailer connector on your 2006 Chevy Silverado. This will give you a 7-way and a 4-way trailer connector. I attached an install video for this product that shows it being installed on a 2006 Chevy Silverado for you to check out as well.
    view full answer...
  • Recommended Trailer Wiring Connector For 2005 Chevy Silverado 1500
    For your 2005 Chevy Silverado, I recommend the Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors # 30955. This will give you a 7-way as well as a 4-way trailer connection. It is easy to install and has a bracket included to mount the connector to. It is a confirmed fit for your truck. I've attached a video to assist.
    view full answer...
  • Recommended Wiring Harness for 2002 Chevy Silverado
    For your 2002 Chevy Silverado with tow package, I recommend the Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors # 30955. This will give you both the 7-way and 4-way connections and will easily connect to your factory wiring harness and give you connection for both styles of trailer wiring.
    view full answer...
  • Wiring a Brake Controller on a 2007 Chevy 1500
    The brake controller itself will splice into the bundle of taped or banded wires under the dash, usually located above where your left knee would be as you are sitting at the wheel. The wires do now connect color for color. The red wiring harness wire would connect to the black wire on the brake controller, the dark blue harness wire connects to the blue wire on the controller, the light blue harness wire attaches to the red wire on the controller, and the white wire on the harness connects...
    view full answer...
  • Wiring Harness for a 2003 Ford F-250
    You would need part # 30955. Please let me know if there is anything else with which I can assist you.
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  • Where is the wiring harness on my 2009 Chevy Silverado
    The wiring harness for the trailer connection is located above the spare tire and you can use the 30955 Replacement Multi-Tow 7-Way and 4-Way Trailer Connector for your trailer lighting. Below I have posted a video for you that shows where the connection is made.
    view full answer...
  • Brake Controller Installation on a 2007 Chevrolet Silverado
    If you have a 2007 Silverado with the Classic Body style, as long as the connector port is there underneath the dash and you have a factory 7-Way connector port at the rear, all the wiring is in place and you would be ready to use your brake controller. If your truck does not have a factory 7-Way, you would need part # 30955. It is a 7-Way harness that is plug and play. We have this part used in one of our installation videos so I will provide a link to that video as well.
    view full answer...
  • No Power To Lights On Trailer
    If you are not getting power to any of the trailer lights then your issue is most likely with the trailer plug. The first thing you will want to do is remove the ground, sand down the surface, and attach with new hardware. If this does not fix your problem then you will want to make sure the wires are secured leading into the plug and that there is no corrosion inside the pins. If still no power then begin tracing the wires back to each light while checking for breaks. If no breaks are...
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  • No Power To Factory 7-Way Plug After Loading Boat Into Water
    The first thing you want to do is unplug the factory 7-way plug from the factory tow package port. Take a circuit tester and check the circuits of the factory wiring port for power. If you have power on the circuits and not the 7-way plug then the plug needs to be replaced. You can also make sure the 7-way plug is fully seated with the factory wiring for a good connection. You also want to make sure the 7-way plug is properly grounded to a clean bare metal surface if it has a separate ground...
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  • Trailer Lights Not Working when Connected to 2008 Chevy Express 2500 w/Factory Tow Package
    First we should make sure we have checked all of the fuses and relays related to the factory tow package wiring on your 2008 Chevy Express van. Under the hood there are the following fuses related to the tow package wiring: Location 8 = right stop lamp, trailer turn signal Location 16 = left stop lamp, trailer turn signal Location 35 = Trailer wiring (this is a very ambiguous description and just might be the culprit) Location 62 = Trailer wiring (see above) Oddly enough there isn't...
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  • Trailer Running Light Fuse Location on a 2005 Chevy Avalanche
    If you look on page 5-111 of your owner's manual you will see the fuse labeled TRL PARK (Parking Lamps and Trailer Wiring). This is the fuse that you need to check. If is located in the underhood fuse block. I checked out an online version of the owner's manual for your 2005 Chevy Avalanche and it doesn't look like there is a fuse that is dedicated just to the "running lights" for a trailer, but I think what I found what you need to look at. Attached is a link to our fit guide for your...
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  • Replacement Trailer 7-Way Wiring Harness to Replace a Damaged One on a 2005 Toyota Tacoma
    If the factory trailer wiring harness on your 2005 Toyota Tacoma looks like the picure I've attached you can use part # 30955 to plug into that connector. This is a 7-way and 4-way connector that has a mounting bracket attached. If you don't have that type of connector or need a different kind of bracket, send me some pictures of what you have and I'll recommend something that works for you.
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    Image 1 for
  • Adding 4-Way or 7-Way to 2002 GMC Sierra 2500HD Without Factory Tow Package
    Though you may not have the factory tow package, almost all GM pickup trucks like your 2002 Sierra 2500HD came with the factory trailer wiring. You mentioned you have an existing trailer plug, which you can use to install the Multi-Tow 7-Way and 4-Way Trailer Connectors # 30955, which will plug into the OEM connector above the spare tire. I've added a couple links to video reviews for you to check out as well.
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    Image 1 for
  • No Trailer Turn Signals On a 2005 Ford F-250
    I know you said you checked the fuses but there are a few different fuse boxes on your 2005 Ford F-250. The fuse box you are looking for is called the power distribution center and this is located next to the engine under the hood of your truck. In this fuse box the one you will be looking for is a 20 amp and is located in cavity #9. There are also two relays you need to check as well, cavity #201 and cavity #202. If all fuses and relays check out and you have inspected all the visible...
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  • What Circuit of 2015 Chevy Silverado Connects to Trailer Battery
    The 1:00 pin of the 7-way at the rear of your 2015 Chevy Silverado is the circuit that would connect to and charge the trailer battery. On a Silverado like yours this circuit can sometimes not be active but with a few connections under the hood the circuit will be active. If you check out the attached help article you can see how this connection would get made on a truck like yours.
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