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7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End




Code: HM40975


2348 reviews

Retail:$56.35
Our Price: $32.39


Product Specs:

Custom Fit Vehicle Wiring

Trailer Hitch Wiring

No Converter


Custom Fit

7 Round - Blade
4 Flat

Hopkins


This 7- and 4-pole trailer connector eliminates the need for an adapter and allows you to tow a trailer with either a 7- or 4-pole plug. Socket connects to your vehicle's OEM wiring system and mounts with included bracket.

Video of 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End

Customer Satisfaction Score:


Customer Reviews

7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End - HM40975

Average Customer Rating:  4.8 out of 5 stars   (2348 Customer Reviews)

This 7- and 4-pole trailer connector eliminates the need for an adapter and allows you to tow a trailer with either a 7- or 4-pole plug. Socket connects to your vehicle's OEM wiring system and mounts with included bracket.

by: Michael07/12/2023

The box arrived opened and damaged. My wiring harness was missing. When I called to tell them my wiring harness was missing they told me that it was shipping separately but could not tell me when it would arrive. I later got an email telling me all of my items were delivered and asked me to leave a review. I still don't have my wiring harness and will not have the hitch installed by this weekend like needed because I don't know if I am ever getting my wiring harness.not to mention the box had no padding around the hitch so it's all scratched up.

Comments
I am sorry to hear that your order arrived in this condition. I see that our customer service department is currently working on a solution for you.
-- Etrailer Expert Katrina D - 08/03/2023


by: 2006 Silverado 2500HD08/03/2023

Worked exactly how described, great replacement for my risty only bracket and 7 pin connector. Fits my 2006 Chevy Silverado 2500HD perfect, plug and play. Bought specifically because the bracket is included. And with both 4 and 7 pin connectors, I don't have to use an adapter anymore!



by: Jason06/24/2023

I am not sure how this bracket passed quality control. It sure is a good thing I'm not planning on using it. Really disappointing to see how quality is overlooked during the packaging process. This should have never left in this condition.

Comments
Oh! It is definitely not how we want the bracket to arrive to you. I will have our Customer Service team reach out.
-- Etrailer Expert Jenny N - 06/30/2023


by: Jim04/17/2024

It was easy to install and took care of the issue I had of one of the trailer light segments not working.



by: James 02/28/2023
2021 Chevrolet Silverado 1500

Easy installation and very helpful installation video.

Comments
One year later and no issues
James - 03/08/2024


by: Ali 12/30/2022

This thing couldn't be better. Easy mounting. Plug and play. I can now connect any trailer I want. Love it, love it, love it!

Comments
This was a major upgrade for me at the time. A year later, Ive hauled massive loads across the country, and this connector harness works perfectly every time
Ali - 01/07/2024


by: Brad 04/11/2024

I bought this because I needed the bracket and it was the quickest way to get it they do not stock the bracket alone. We where installing tommy lifts and needed t move the original connector which was installed on the bumper.



by: Mike07/15/2023

7 and 4-Pole Trailer Connector Socket does not fit my towing vehicle.

Today I just received my etrailer order #114979486, that consisted of: Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector (ITEM # C56431) and 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End (ITEM # HM40975) for my 2020 Ford Ranger. I easily installed the harness, but the Trailer Connector Socket does not seem to fit on the rear bumper, next to the license plate.

Last week, I chatted with etrailer customer support rep and I was assured that the connector Socket (ITEM # HM40975) would fit on my 2020 Ford Ranger.

This etrailer customer support representative referenced a previous Q&A Topic titled, "Can the HM40975 be used on a 2021 Ford Ranger". I was also assured that 2020 and 2021 Rangers have identically constructed rear bumpers.

Today, I spoke with a different etrailer customer support representative. This rep told me 7-Way Trailer Connector (ITEM # C56431) was not compatible with the 2020 Ford Ranger recommend reaching out to the manufacturer directly for more information.

I'm very frustrated!!!! Can I please get a solution to this issue ASAP.

Comments
I am sorry that this has been a frustrating experience, however I do have an answer for you. The Hopkins connector part # HM40975
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
$32.39
is technically not a fit on its own for a 2020 Ford Ranger. The short reason why is that the Ford Rangers do not have the round US Carr type of connector to plug into. Now by adding the Curt harness part # C56431
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector
$57.66
like you did, does make that round connector that you can plug into the back of the Hopkins connector that will give you the 7 and 4 way you want. Since it is using two different manufacturer products together, I do encourage you to test the 4 and 7 way to make sure all the signals are working correctly. In theory they work together, however they are not tested. The issue is going to be that the bracket that comes with the Hopkins connector is not going to match with anything on the Ford Ranger to connect to. It would just be bolted to the bumper or you could also consider using part # C57202
Curt No-Drill Bracket for 6-Way or 7-Way Round Trailer Connector Mounting Bracket - Long
$22.07
to install it on your hitch.
-- Etrailer Expert Jenny N - 07/19/2023


by: Ron P03/17/2014
2014 Chevrolet Silverado

Here's some snaps of my Hopkins #40975 installation. I can confirm that it's an identical replacement for the 2014 Silverado 1500 trailer-light blank insert, no bracket required. It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and all light functions tested good. Shweet! To remove the OEM blank plug, it helps to reach behind it and pinch the two spring clips holding it in place... same with the #40975 if it needs to be removed for some reason. When I ordered the part from eTrailer, your site had a comment, "This will not fit your vehicle. See below for compatible parts," or words to that effect. Maybe take a look at that and remove the comment, as the #40975 is an exact fit for 2014 Silverado 1500, no bracket needed. Thanks, eTrailer team!

Comments
Although I havent towed since installing the Hopkins Pollak wiring kit since I installed it a year ago, I have tested the 4-pin connector for proper function using a 4-pin LED tester from West Marine and it checks out okay. Recently I inspected the kit for water intrusion mentioned by one of the raters, and I found no evidence of moisture inside the dual-connector compartment. On installation, I did make liberal use of the dielectric grease that accompanies the kit. Good product, easy installation, and great price.
Ron P - 03/19/2015


by: Matt W07/07/2018
2017 Nissan Pathfinder

It came with it's own bracket, which is a plus. It was compatible with etrailer.com's part number C56357, which is also a plus. The self tapping screws being the only hardware coming with the item was a disappointment. I just installed etrailer.com's part number 76301 hitch receiver which has a mounting plate for brackets like this. The self tapping screws, which might have been effective, wouldn't have looked "professional." After finding some hardware which worked, it went on smoothly and fits well with the rest of the assembly.

Comments
This product has been working well for the past year. I feel this was a smart purchase.
Matt W - 07/07/2019


by: Mark 03/20/2024
2018 Chevrolet Silverado 1500

Item received as described. It was simply plug and play. Out with the old, and the new was an exact replacement. Very satisfied.



by: Dennis 02/08/2024
2010 Ford Van

This dual connector adds a professional looking touch to our tow wiring installation



by: Rob09/22/2018
2015 Audi Q7

Scratched my head for a while, trying to find a quality way to connect this vehicle end 4/7 wire socket to my trailer ready (almost) 2015 Audi Q7. Finally decided that it really didn’t need to be bolted, but could be hose clamped to the existing heavy duty Audi bracket.

Mounted it sideways with a 1” diameter and a 3” diameter hose clamp. Be sure to use a 3” clamp with lots of serrations that all it to tighten it down a lot.

You’ll need to drill out the small hole of the supplied bracket to allow a clamp to fit through it. The other hole is a slot, and works unaltered. Small clamp on bottom, large clamp on top.

You’ll also need to relieve a small spot on the trim piece to make room for the 4-wire door to o-en freely. This is marked as red on one of the pictures.

Looks good and should work good!


Comments
Good installation approach for q7’s. Keeps water from collecting in wiring junctions.
Rob - 09/22/2019


by: Bert 03/28/2024

The self tapping screws that come with the mount are junk,
The product is Good.



by: Lonnie04/08/2024

Great product, it was just what I was needing to complete my project.



by: Steven 04/21/2024
2022 Nissan Titan

Came in on time. The parts were in good shape and fit perfectly.



by: Doug 11/02/2022

Fit and works fine. My old one was just the 4 plug so now I don’t have to use the adapter for 7 prong anymore.

Comments
Works fine- no issues.
Doug - 11/03/2023


by: Guy05/22/2022
2003 GMC Sierra

Top quality trailer connector that fir original wiring harness perfectly.
Installed in under 15 minutes.

Comments
Works great and looks great. Get compliments on the hitch.
-- comment by: John C - 07/26/2022


by: RT12/13/2023

A very good option to cut down on rattle. This is a durable product that is fairly simple to install. My only complaint is the magnet to keep cover closed when not towing should be stronger. I am happy with the purchase and it looks like it will be useable for years.



by: James 08/07/2023

This was a drop-in. Literally unplug the wiring harness off the blank, pop out the blank, pop in the new connector assembly then plug the wiring harness back into the connector. Honestly took less than 4-minutes. Awesome product. My local hitch install company wanted $150 just for the install of the connector.



by: Warren 04/25/2023
2005 GMC Sierra

Fast shipping. Nice quality product

Comments
Products still working great.
Warren - 04/26/2024


by: 1957okie04/03/2014

Great product at a great price. It was an exact fit and looks great. I like having the ability to plug in my 7-prong plug on my travel trailer or the 4-pin plug on my boat, without needing an adaptor. Got super fast shipping too. Buying from etrailer.com was a win- win-win.

Comments
What year is your silverado
-- comment by: Bob R - 05/31/2014

Its a 2014 Silverado 1500 Double Cab
-- comment by: Randy S - 06/06/2014


by: Gary10/01/2023
2005 Chevrolet Silverado

Super fast shipping easy installation looks better than factory plug love the 7way and 4 way so no more dealing with adapters



by: Russell09/13/2019

nice looking product, haven't plugged into it yet to know of the electrical part, caution about the install, make sure you have about 5" clear directly behind the install location of your bracket to allow room for the connector and to attach your vehicle plug, see photo, I had wanted to mount this on the bottom of my bumper, but not enough clearance

Comments
A no-drill mounting bracket like # C57202
Curt No-Drill Bracket for 6-Way or 7-Way Round Trailer Connector Mounting Bracket - Long
$22.07
is a great way to give clearance needed to mount the wiring connector higher up on the hitch.
-- Etrailer Expert Victoria B - 09/23/2019


by: Walt 06/29/2023
Toyota Highlander

I’ve had a great experience with the etrailer company. I fully equipped my 2022 Toyota Highlander which did not come with the factory tow package. I bought the receiver hitch, the wiring harness kit, a brake controller plus this special 7x4 pole connector, which did not come with the wiring harness, which only had.7 pole. I also bought a special bracket to mount the connector where it needed to go. Their service was great. Unfortunately they did not carry the Anderson weight distribution chain type hitch that I purchased from Anderson. They are a well run, customer focused Company that I highly recommend


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Ask the Experts about this Hopkins Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • Comparing Hopkins and Pollak 4 and 7-Way Trailer Connectors
  • In regards to Pollak and Hopkins, they are both great options. That said, if OEM parts give you any indication of quality then Pollak would be the better choice as they are the OEM for most manufacturer in regards to trailer connectors. Personally, I've had less issues with plug fitment when using the Pollak brand. If you're looking for both a 4 and 7-way connector, I recommend the 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket part # HM40975 which also comes with a mounting...
    view full answer...

VS

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector




Code: C55384


616 reviews

Retail:$45.95
Our Price: $33.71


Product Specs:

Custom Fit Vehicle Wiring

Trailer Hitch Wiring

No Converter


Custom Fit

4 Flat

CURT


Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into 7-way OEM tow package wiring harness - no cutting, splicing or tapping required.

Video of Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - C55384

Average Customer Rating:  4.8 out of 5 stars   (616 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into 7-way OEM tow package wiring harness - no cutting, splicing or tapping required.

by: Vincent 03/21/2023

Quick & easy trailer wiring harness replacement . took less than 15 minutes

Comments
1 year & still works great, very easy plug & play setup. I recommend putting a small amount of white lithium grease on those connecting, helps protest against rusting.
Vincent C - 03/22/2024


by: Gerald03/23/2024
2005 Ram 2500

Top quality trailer hitch at a very reasonable price!
Chevy 2500 HD 2005 Duramax



by: Slpugh04/22/2024
2005 Chevrolet Silverado

Installation was very easy and only took about 15 minutes to hook up and secure wiring on truck.



by: Dan 11/15/2023

Yup. Still works after a year in operation. The only thing I am unhappy with is my vehicle thinks there is always a trailer connected and the backup sensors and side sensors are automatically disabled.



by: Donald 02/27/2024

This product was exactly what was portrayed on line. Wiring harness was very simple to install and works extremely well.



by: Mcrae11/18/2023

When I finally installed it about 3 months ago, the plug in connectors did not match what I had on my truck. I ended up just cutting them off and splicing them into the connector from my truck



by: Nathan 03/26/2024
2014 Chevrolet Silverado

Exactly as described. Fit perfectly into my 2014 Silverado bumper outlet.



by: Tony B.12/15/2018
2018 Dodge Ram Pickup

I installed my Curt T-Connector today to my 2018 RAM 1500 Sport 4x4 Crew Cab. The mileage on the truck is at 10679km's. Although warned that the spare tire might require removal (via web site info from fellow RAM owners) that was not the case as there was enough room to remove the OEM connector (which is the short end of the assembly) from the factory housing. The actual disconnect and re-connect took only a couple minutes. I spent a about 15 or 20min's trying different wiring run routings for the aux. four connector plug wiring run. Some tie-wraps where installed to snug things up out of the way and I was done. I also dosed the connections with a shot of Krown 77 lube/rust inhibitor. I'm in the "Great White North" so salt use on roads is a given during the winter months. A quick test run of the lights and I was done. The build quality of the T-Connector is very good..equal to OEM or better I'd say.



by: Christopher 03/29/2024
2017 Jeep Grand Cherokee

Easy plug and play simple installation.



by: Scott 11/02/2023

Fast delivery, and easy to find products. Second trailer hitch I bought from e-trailer. Great products



by: Jason m07/20/2019

Awesome!! I bought an OPT7 triple LED light bar for my Chevy Colorado and I didn’t want to splice wires or lose a whole lot of time trying to figure out how to wire it up so I googled and I came across a gentleman who used this product and Im very thankful for this connection and my light bar works smoothly and I have full use of the reverse camera AND I don’t have any wire mess outside or underneath my truck! Easy to install, my first time doing this and it literally took me about 2 minutes, if that! Definitely would recommend this product to anyone with a truck!! Thank you guys!!



by: Virgil06/06/2022

Was exactly as stated in description. Just unplugged old plug and plugged in new one. I had two plugs to replace and added an extra "T" plug for another 4 prong. It only took less than 15 minutes to install all 3. Customer service is wonderful. Everything I have bought from ETrailer is top notch and delivered on time or earlier.

Comments
Working GREAT. Easy to install
Virgil - 06/07/2023


by: Andy l. 08/18/2017
2013 Jeep Grand Cherokee

Order class iii hitch and wiring harness for my 13 keep grand Cherokee . Came next day. Installed in 20 minutes. Great product. High quality and easy install

Product was shrink wrapped, taped and boxed ver professionally. Website also very easy to use

Would definitely recommend to anyone



by: Raymond03/15/2018

This is a great vehicle to trailer wiring harness just plug it in and you're ready to go and that's all they are to it plug and go and I recommend it.



by: Rod A12/30/2021

This T-Connector is working great. Installation was simple. It was truly plug n play.
I used it to connect a LED light bar on back of truck; allowed me to install the light without using the existing trailer connector, so it is still available.

Comments
Its been a year since I installed the T-Connector. And it is still working like brand new no issues with this connector. Provides a great convenience not having the share the OEM trailer slot.
Rod A - 12/31/2022


by: Pat M08/28/2013
2013 Chevrolet Avalanche

Easy to install works great shipping and communications was fantastic. Now my USMC LED light hitch cover is on the truck without an adapter.



by: Miseal12/07/2022
2019 Ford Ranger

Easy instructions, installation was a breeze. Very important to torque bolts down to spec. Also will need to have dealer “flash” vehicle to activate trailer lights. 5 stars



by: Martin m07/22/2017

Perfect fit. Took 20 minutes to install wire harness and hitch receiver.



by: Richard07/23/2023
2001 Chevrolet Silverado

Unfortunately, the product ordered did not fit my application and I will be returning!

Comments
I wanted to ask if your 2001 Chevy Silverado came with the tow package? Did you already have a factory seven way? If not, the part # C59236
Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
$78.38
would be the better fit.
-- Etrailer Expert Jenny N - 07/26/2023


by: Anita 04/03/2024
2011 Ram 1500

Arrived on time and just what I need.



by: John05/29/2023

You sent me the wrong wiring kit. It doesnt work on my vehicle.

Comments
This harness is meant to be used for a 2023 Ford Explorer that has a factory seven way to add on a four flat. If you do not have the factory seven way, then you will want to use part # C56093
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
$55.37
instead.
-- Etrailer Expert Jenny N - 06/01/2023


by: J10/19/2023

Did not match my plug into car. So could not use and returned.

Comments
Can you please provide a picture of the underside where the plug is supposed to be located? For vehicles with the factory tow package; your install may require additional components or may be used as a replacement harness.
-- Etrailer Expert Katrina D - 10/21/2023


by: George 07/25/2023
2022 Chevrolet Silverado 1500

This is such a better way to install a tail light bar. No cutting or splicing wires! FABULOUS!



by: Caity12/05/2020

Easy to install and tucks away nicely next to the hitch. No hanging wires and really clean look



by: Brian S07/22/2018
2011 Chevrolet Silverado

Took less then 5 min to install, solved the hassle of going to a brand name shop and paying 5 to 6 times to have them install. Plan on towing a utility trailer my wife and I do a lot of antique shopping. Will tell all my friends, great product


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