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

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

Item # HM40975

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7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End 7 Blade,4 Flat HM40975
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  • Custom Fit
  • Trailer Hitch Wiring
  • Hopkins
  • 7 Blade
  • 4 Flat
  • No Converter
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. Call 800-298-8924 to order Hopkins custom fit vehicle wiring part number HM40975 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price and Fastest Shipping for 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End. Custom Fit Vehicle Wiring reviews from real customers.


  • All Info
  • Reviews (1199)
  • Q & A (741)
  • Videos (37)
  • Photos
  • Why etrailer?

Hopkins Custom Fit Vehicle Wiring - HM40975

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.


Features:

  • 7- and 4-Pole trailer connector with mounting bracket
  • Has high-impact, ABS plastic construction
    • Stainless steel spring for easy cover operation
    • Rubber gasket provides weather-resistant design
  • Includes mounting bracket for easy, snap-in socket installation
    • Black, epoxy-coated steel construction
    • Mounts to bumper with included screws


Specs:

  • Application:
    • Replaces factory 7-way connector on Chevrolet, Ford, GMC and Nissan trucks and SUVs
    • Can be used to add a connector to 2003 and newer GM pickups and SUVs
  • Bracket dimensions: 4-3/4" long x 3-1/16" tall x 1-3/4" deep
  • Distance between mounting holes (center to center): 2-3/8"
  • 1-Year limited warranty


Dimensions of bracket

Note: Only one connector - a 4-way or a 7-way - can be used at a time because the covers on this socket will not open far enough to allow use of both plugs at the same time.


Product is manufactured by Pollak and distributed exclusively by Hopkins.

Similar to 11775, PK11893



40975 Hopkins 7- and 4-Way Trailer Connector Socket with Mounting Bracket - Vehicle End



HM40975 Installation InstructionsInstallation Details HM40975 Installation instructions

This Product Fits The Following Vehicles

2013 - 2016 GMC Acadia

2017 - 2017 GMC Acadia Limited

2002 - 2006 Chevrolet Avalanche

2013 - 2017 Buick Enclave

2011 - 2019 Ford Explorer

2013 - 2019 Nissan Pathfinder

2014 - 2019 Infiniti QX60

2014 - 2018 GMC Sierra 1500

2019 - 2019 GMC Sierra 1500 Limited

2014 - 2018 Chevrolet Silverado 1500

2019 - 2019 Chevrolet Silverado 1500 LD

2001 - 2006 Chevrolet Suburban

2001 - 2006 Chevrolet Tahoe

2001 - 2006 GMC Yukon

2000 - 2006 GMC Yukon XL

2002 - 2006 GMC Sierra 1500

2007 - 2007 GMC Sierra Classic 1500

2002 - 2006 Chevrolet Silverado 1500

2007 - 2007 Chevrolet Silverado Classic 1500

2002 - 2006 GMC Sierra 1500 - 10 inch Deepdrop Bumper

2007 - 2007 GMC Sierra Classic 1500 - 10 inch Deepdrop Bumper

2002 - 2006 Chevrolet Silverado 1500 - 10 inch Deepdrop Bumper

2007 - 2007 Chevrolet Silverado Classic 1500 - 10 inch Deepdrop Bumper

2001 - 2006 GMC Sierra 1500 with aftermarket Roll Pan Bumper

2007 - 2007 GMC Sierra Classic 1500 with aftermarket Roll Pan Bumper

2002 - 2006 Chevrolet Silverado 1500 with aftermarket Roll Pan Bumper

2007 - 2007 Chevrolet Silverado Classic 1500 with aftermarket Roll Pan Bumper

2009 - 2014 Dodge Ram Pickup 1500 with factory 7-Way

2008 - 2010 GMC Sierra 2500 - 6-1/2 Foot Bed

2007 - 2007 GMC Sierra New Body 2500 - 6-1/2 Foot Bed

See All Vehicle Fits

California residents: click here


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


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




Video Transcript for Trailer Connector Socket Installation - 2018 Chevrolet Silverado 1500

Speaker 1: Today in our 2018 Chevrolet Silverado 1500, we're going to be taking a look at the Hopkins 7 and 4 pole trailer connector socket with mounting bracket, part number HM40975.So here's what our wiring's going to look like once we have it installed. It is going to give us a seven way RV style connector, so we're going to have all of our lighting functions, 12 volt power, and our trailer brake controller ready for us. And at the same time it is going to give us a 4 pole flat trailer connector, which is going to give us all of our lighting functions, if our trailer doesn't have brakes.Now this is going to be a direct replacement for the factory plug that comes in the bumper. If your Silverado doesn't have that plug, or if you don't want to mount it there, our kit is going to come with a bracket so we can mount it somewhere else like the bottom of our hitch or the bottom of our bumper. And on the outside, it is going to have a legend letting us know which pin is going to do what, which is going to make testing our lights and all the functions really easy. And you just figure out which pin we need to check and it's also going to be on the 4 pole as well.Our connector's going to have a spring loaded cover so it's going to automatically close when we disconnect.

There's also going to be a gasket on the inside so you can make sure that it's not going to have any kind of corrosion and moisture getting inside or any other kind of debris.So now that we've seen the end result, let's show you how to get it connected. To begin our installation, we going to have to pull out our factory plug that's in our bumper. Now on the backside it's going to be just like our socket here. It's going to have these metal tabs and you're going to want to squeeze in on those tabs so that it'll take the pressure off and we can pull it out.As you can see, our plug has seen better days and it's really not even holding that well inside of there so we can go ahead and pull the plug out, and then the connector here is going to have this little white lock tab on it. We're going want to grab it and pull it away from the plug, and then we're going to push down on the center of that black piece, and we're going to remove it.We're going to take our new plug, line up the square on it, make sure it locks in place, slide that locking tab back in, and we're going to feed our wires back in.

And then all we're going to have to do is push it in until it locks into place.Now we have one more thing to make sure that all of our circuits are working properly, so I'm going take my 4 pole tester and if you need one, you can pick one up using part number I26. And if I lift up the lower flap, we'll have a four pin connector, so I plug it in down there. And then I'll have someone run my lights so I can verify that it's working properly. If I turn my headlights on, we can see the tail light function is working properly. Now with the left turn signal, the right turn signal, and our brakes.Let's go ahead and hook our 7 pole tester and make sure that socket's working properly as well.

So you can see my taillights are working, my left turn, right turn and my brakes. Also at the top you can see that we are getting a 12 volt power source at the back of our seven way.If there was a brake controller in our truck, I'd be able to show you that, but in our application, we don't have one hooked up. So all you have left to do is hook up to our trailer and hit the road.That'll finish up your look at the Hopkins 7 and 4 pole trailer connector socket with mounting bracket, part number HM40975, on our 2018 Chevrolet Silverado 1500.


Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (1199 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.

- HM40975
by:

Good quality no issues 568536



- HM40975
by:

Good product. Fast service 570072



- HM40975
by:

Good fit and worked just fine. A bonus is that it also has the 4-pin connector built-in so no adapter is required for that kind of trailer connector. 563271



- HM40975
by:
2014 Chevrolet Silverado 1500

Was exactly what I looked at on-line. The description was spot on. Was shipped in a timely mannet and it installed in just a few minutes 225112


Comments

The product is working fine. I like having the product so I dont need adapters. Thanks

Marshall a - 09/11/2016

20896

- HM40975
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2006 Ford F-350 Super Duty

Product was easy to install on a 2006 Ford F350, I replaced the original that had rusted a part. Just plug in and snaps right in. 565999



- HM40975
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2018 Chevrolet Silverado 1500

Also fit perfect like it says...thank u 571389



- HM40975
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2018 Chevrolet Silverado

Fit my 2018 silverado perfect,well made. 567873



- HM40975
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2017 Jeep Grand Cherokee

Installed on 2017 Jeep Grand Cherokee Laredo and Draw-Tite hitch. Setup was super easy using factory connection. Now just have to have Jeep dealer activate the trailer towing feature to get it to work. Couple quotes for $140.00 to flash computer. Seriously I asked. Oh well. I'm knocking it down 1 star because if you look at the video that etrailer has for installing this product, they installed on a hitch that had the mounting bracket on it and didn't use the self taping bolts. It seemed at least to me, there were/would be nuts and bolts provided with the kit (along with the self taping bolts). At least for me that wasn't the case and I had to piece together the hardware. 505920



- HM40975
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2018 GMC Sierra

The 2018 GMC Sierra 1500 base model with no options has the wiring harness at the bumper. The bracket and bolts are not needed on the GMC 1500. 552385



- HM40975
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Ford F-250 Super Duty

Trailer plug unit (Pollack 7 & 4 pole for my F-250 was broken by the car wash. Called the dealer and they wanted double what e-trailer sales it for plus I had to special order and that took too long to ship as I needed it immediately. I went online and found ETrailer.com and they had the exact replacement device that was identical to what the manufacturer had installed. I ordered it and asked to have it within a set timeframe and e-trailer did exactly what they said they would do! The lady I spoke with Cathy was on the stick with the entire order and follow-up. The Etrailer staff then followed up the very next day of delivery. I have just installed the plug this morning so it has to be tested but do not forsee any issues as it is the exact replacement which worked great before. I am very impressed with the service here and will most definitely buy from them again as well as refer my freinds and business associates. I manage a commercial fleet as well as work with many other contractors who have trucks and trailers and there is always the need for something in this category. Great job ETrailer, you have a new long term customer. 42962



- HM40975
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2011 Jeep Grand Cherokee

This was a great addition to the hitch I bought for my 2011 Grand Cherokee. I was able to plug it right into the factory harness for a perfect fit. The only issue you may have is the trailer lights won't work until you get the computer flashed from the dealer to tell the Jeep it has a towing harness attached now. 54337


Comments

I have a 2012 Jeep Grand Cherokee that came without the tow package, but which still had the 7-way connector at the rear. This trailer connector socket attached easily to my hidden hitch, and connecting it to the Jeeps 7-way was a snap. If your trailer signals and brake lights do not work after installing this socket on the 2012 WK, youll probably have to take it to the dealer for a body control module re-flash, and itll cost you around $100.

-- comment by: Randy D - 02/19/2013

1065

Thanks for the info. We have seen some dealers so it for less even for no charge. Just depends on the dealer.

-- Patrick B - 3/21/2013


- HM40975
by:
2015 GMC Sierra-1500

This was what I needed to make my new truck able to pull my two trailers. You even had a video showing how to install it on your web site, this helps a lot. Thanks for the help. 211204


Comments

Thanks for the follow up Rachael, the part is working great, dont use it very often but still needed to have one. You guys are great! Will recommend your site to others needing parts. Glad that a Company can still value there customers now a-days, does not happen as often as it use to.

Dan R - 08/05/2016

19960

- HM40975
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2018 Jeep Grand Cherokee

Plug and play, couldn't be easier! Decent price too. Only 4 stars due to the ridiculous self-taping screws they expect you to put through 3/16" steel (just guessing on the thickness - it's 1/8-3/16 best guess...). The install video on the site shows them using nuts/bolts/lockwashers to install it, which is what I did. This product should come with that arrangement instead of the self-taping screws, in my not-so-humble-home-installer-opinion... 554683



- HM40975
by:

Part was delivered on time and perfect fit. Etrailer was a $100 cheaper than dealer. 575773



- HM40975
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2018 Nissan Pathfinder

I ordered DrawTite hitch #76031 along with Tekonsha Wiring #118273 and HM40975, 7 and 4-Pole Trailer Connector Socket for my 2018 Nissan Pathfinder SL. I ordered on a Thursday afternoon and the merchandise arrived the following Monday evening (with free shipping and no tax). The hitch arrived in excellent condition with no scratches or scrapes and was packaged very well. The total for my order was a great price! This also included a tube of dielectric grease and a brush. To get a factory hitch would have required an expensive "Technology Package" at a cost of over $2000 or a dealer install which would have cost over $1000. I did the install of the hitch myself. It would have been far easier if I had a lift to raise the vehicle off the ground, and a helper to hold the hitch in place and get the 6 frame bolts started. I used an ice chest to prop up one side of the hitch while I got the bolts started on the other side. Watch the videos from etrailer before doing the install. I did have to trim about one-eighth of an inch off the corner of the gasoline vapor recovery box on the left underside of the vehicle to get the hitch into a position so that the holes in the hitch lined up with the weld nuts on the frame. I used a rotary file on the end of my drill to do this. The 2X2 receiver does barely touch the bottom of the rear trim on my Pathfinder but did not require cutting the trim to get it to fit. The Tekonsha #118273 Factory Wiring was not difficult to install. The etrailer video on how to install this item was not as good as it could have been. The installer says he is going to make the 2 vehicle connections inside the left-rear of the vehicle "by feel," which may be fine for someone who knows what he is doing, but was not helpful to me. I pulled back the trim on the inside left rear to make these 2 connections. You should definitely make ALL of your wiring connections BEFORE installing the hitch itself. If you don't, it will be very difficult to reach the connectors outside the right rear of the vehicle if the hitch is already in place. BE WARNED about this. The HM40975 connector was very easy to install and by having it you will not need to use an adapter to use a 4-way flat trailer connector. I used 2 stainless steel bolts to fasten the bracket into place instead of the included self-tapping bolts that were in the kit. This item is well worth the small cost. I am completely satisfied with my purchase from etrailer and will not hesitate to recommend them highly. Both George and Adam at Etrailer were very helpful. See the picture of the completed install on my 2018 Nissan Pathfinder SL. 566326



- HM40975
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Ford F-250 Super Duty

Replaced factory installed f250 7way. Perfect fit slide in place and plug the connector into the back and everything worked great. 5 mins to install. 565006



- HM40975
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2002 Ford F-250 Super Duty

Plug worked great but mount didn't work for some reason said it fits a ford f250 2002 the connection matched but bracket was to short in height didn't come low enough to get plug below bumper holes lined up depth good but to high had to mount new bracket to old bracket 551190



- HM40975
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2018 Chevrolet Silverado 1500

Awesome! Two minute installation! 575724



- HM40975
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2016 Chevrolet Silverado 1500

I recently bought a new truck, as my other one was over twenty-two years old. On the old truck, I installed both the trailer hitch and the light hook-up. A lot has changed in the last twenty-two years. The agreement on the new truck was that it come with a trailer hitch, but I failed to include the light hook-up assembly. I thought that if you got one, you got the other! WRONG! I was informed that I would have to purchase and install the light hook-up myself. I went on line to etrailer.com and ordered the light hook-up. It was at a reasonable cost and arrived within a week of being ordered. Was a bit surprised when I opened the box and just found a plug-in type hook-up assembly. I was expecting a lot of wiring and other connectors. The installation took about a half an hour and was very easy to do. Again, a lot has changed in the past twenty-two years. I am very pleased with the part, price, ease of installation, and the change that the truck manufacturers have made in the area of tow package hook-ups. 384686



- HM40975
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2014 Jeep Grand Cherokee

The HM40975 was a perfect fit for my 2014 Jeep Grand Cherokee . I would definitely purchase if needed again. 571419



- HM40975
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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. 538985



- HM40975
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2008 Ford F-250 and F-350 Super Duty

Quality OEM [email protected] substantially lower cost then OEM. 83070


Comments

It appears there is an engineering design defect in this product - at least when installed on my 08 F250. Water from Michigan weather - i.e. rain, snow and car washes continues to find its way into the plug, corroding the contacts and causing a wiring fault. No Im NOT backing into water to unload a boat, Ive removed, cleaned and dried the inside at least three times, covered the contacts and connection points with dielectric grease and carefully sealed the unit w electric tape. Last week, I sprayed the outside of the plug w/ flexible rubber seal yes as seen on TV in my fourth attempt at stopping the water from getting into the plug. This past week, while on a 500 mile road trip we made it through torrential driving rain without experiencing any connection issues. Im keeping my fingers crossed and hoping I dont have to take the plug apart, now that its sealed in the rubber coating!

David S - 06/03/2014

4610

We hope the rubber coating takes care of the problem. If not, we've got a couple of suggestions. You mentioned dielectric grease. If you weren't already, you can be pretty liberal with the application. You can fill the socket and push the connector in and wipe the excess that squirts out. If all the voids are full of grease, there's no place for the water to go. Second, on most of these types of connectors, there is a rubber gasket on the vehicle side that usually stays in, but will sometimes pull out when you remove the cap or the previous 7-way connector. If you still have the cap or old connectory, you may want to check for the gasket.

-- Patrick B - 6/9/2014


- HM40975
by:
2013 Toyota Tundra

I bought this as a replacement for the existing trailer connector on my 2013 Tundra. The mount was different than what I had (mine wasn't angled) but I was able to snap the wiring connector into the existing mount so I didn't have to change anything or drill holes. Installation took less than 5 minutes. Wiring harness on backside connected perfectly. Excellent value considering Toyota would only sell me an entire wiring assembly which was over $200 (if I recall correctly). eTrailer ordering, shipping and follow up from customer service confirming delivery of the part couldn't be beat! 194541


Comments

Still working great!

Ryan - 06/17/2016

18694

- HM40975
by:
2017 Nissan Titan

The product ended up being good for my needs and easy to install. But this light kit originally had an install video for a 2017 Titan when purchased but the video disappeared and became a 2010 Titan. Luckily it still worked for my needs. 568194



- HM40975
by:
2005 Chevrolet Silverado 2500

Because of my particular placement of the plug mounting bracket, I had to spot weld the bracket to my hitch. Once I did that, I let it cool a bit, that simply snapped my connector in, plugged my chevy 2500 hd wiring harness in the back and now I do not have to mess with plug adapters for my flat wired trailers. Very, very, easy installation. Additionally, this new plug solved a bunch of issures with blinking trailer lights or lights that were not working at all. Thanks for your courteous service, great price, and fast shipping. Forever a customer, tom 56598


Comments

All my comments in my review almost a year ago are still applicable today. Our winter here was terrible with all the rain, snow, and ice. My lighting circuits on my trailers and boat worked great...whereas in the past, they performed poorly in any kind of wet conditions.I always recommend to my friends who have had wiring problems with their trailers to start at the truck with a solid performing plug with appropriate adapters for the type of trailers you will be using. It will eliminate a host of problems with lights not working properly.Thanks once again for your courteous service.

tom g - 04/09/2014

3488

- HM40975
by:
2010 Ford F-150

This is a plug-in replacement for my 2010 Ford F-150 with factory installed trailer package. I had this exact same connector but someone unclipped it and stole it. Ford Parts wanted over $100 for a replacemnt (they included the entire rear bumper harness that I did not need). I had the cutout on the hitch that exactly matched this bracket and the blue socket that you see in the optional pigtail available for this product (see attached photo). I snapped this dual connector into my existing cutout - fit perfectly. Did not need to use the included bracket. So if your factory connector is damaged or stolen, use this as a snap-in replacement. The only difference is it says "Pollack" instead of "Ford". I called Hopkins before I bought and they said they supplied a lot of the OE parts Ford uses. 55449



- HM40975
by:
2018 Jeep Grand Cherokee

Perfect fit and easy to install! 575076



- HM40975
by:

Excellent quality. Only took 5 minutes to install. Outstanding customer service!! Ordered online on Friday and received via USPS on Monday, with emails letting me know the order was received, the item was shipped, and one that stated that the company had received information that the item had been delivered. And each one was signed by an individual. If only all companies operated this way. 93531


Comments

Works great! Nice to see that there are companies like yours that value customer service and take the time to follow up after a years time. Thank you.

Zip i - 02/20/2015

9614

- HM40975
by:
2007 GMC Sierra

Perfect replacement for my 2007 Sierra Classics factory connector. 571162



- HM40975
by:
2013 Chevrolet Traverse

very easy to install. it is a rather tight fit on a Chevy traverse. Allows a factory install of aftermarket hitch by using GM harness # 25910884 ($68.00) . Harness comes with snap in wire ties that go in holes on cross frame of rear bumper. Vehicle to connector harness is located to the rear of right rear tire between outer body panel and tail light . Use flash light and look up. Cord fits E trailer Vehicle end plug 40975. Need to drill two holes in cross frame for bracket. It all snaps together very well. Also need to add 3 relays in engine fuse box. GM13502753. This is gray relay 1/2 in square and has 2750 market on top. this eliminates splicing delicate factory wiried and hassel of hot wire from battery. Bumper skirt snaps back into place and hides hitch totally on 2013 Chevy Traverse. 87284


Comments

Has worked like OEM installed product only about $400 cheaper.EXCELLENT I will do it again on my next vehicle,

Chas - 07/03/2014

5294
Comments

Chas,Where did you mount this part on your Traverse? I want to mount it to my 2010 Acadia but I cant find a good place to mount it? Can you send me a picture?I already bought the gm factory harness to install along the cross frame.

-- comment by: Rod b - 05/10/2015

11570
Comments

I installed it to the left of the receiver. trimmed some of the plastic on bumper trim that holds the removable access cover for the hitch. Y ou need to be careful not to cut away the slots that hold cover in place. The installed hitch and electrical are completely concealed.. Note there are several blogs on the Traverse owners forum. I also bought the correct tow switch,and relays that fit in the engine compartment fuse box. The ranny is already programmed at factory for tow mode. One fellow posted photos of the whole prcedure and listed all part numbers. I also ordered the tranny cooler from E-Trailer. Be sure to use a digital thermometer to be sure you hook up to correct lines. You will need to find correct fitting on internet. It will take some time to remove most of the front clip to have room to work.Incidentally I drove Traverse up on a coulpe fo 4X4 to be able to work under it., I used a floor jack to raise up hitch to align it.chas

-- comment by: Chas - 05/19/2015

11875

- HM40975
by:
2005 Chevrolet Tahoe

I really like this trailer plug since it converts a standard 7 Wire plug into both a 7 wire and 4 wire. It plugs directly into the factory wiring harness. it comes with everything you need to mount it (bracket and self tapping screws). It was an easy install. My 05 Chevy Tahoe had the factory 7 wire outlet bracket, I left that in place and mounted this bracket just to the left of it. I highly recommend this product. 437664



- HM40975
by:
Chevrolet Silverado 1500

2015 GMC 1500 bought new no hitch or trailer plug went to dealer for trailer plug could not find plug in parts system said they would have to call Tec support. Left disappointed. Found E TRAILER had part (in stock) and video how to install found excellent for someone that doesn't have much mechanical skill (I'm 20 years in automotive). Have not been able to install yet due to ice build up from snow on frame. Very pleased and will be telling everyone about ETRAILER and will be ordering when I need parts, 235434


Comments

Finally got trailer plug installed many camping trips and no problems at all took less than 5minutes to install

Troy D - 01/14/2017

22214

- HM40975
by:
2006 Ford F-250 and F-350 Super Duty

Perfect!!! 235563


Comments

Absolutely love the product!! Is holding up amazingly!!!!*

Zachary G - 03/12/2017

22749

- HM40975
by:
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! 120915


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

10141

- HM40975
by:
2016 GMC Sierra 1500

Shipping was on point, no hassle from picking the correct part to adding in cart to check out all the way to actually receiving my product. Once I got it the installation it took like 2 minutes literally. The only issue I have is that the support Brackett is a "L" shape bracket and the 2016 GMC Sierra's don't have anywhere to actually bolt it into, however, the manufactures flat Brackett works all the same just connected the 7way port into the harness of truck then pushed locked it into the bumper. All in all was done in under 2minutes. Very please thus far 295995



- HM40975
by:
2008 Ford F-250 and F-350 Super Duty

So the new bracket is a little different than the old one as you can see in the pictures I’ve got it mounted the way it is. For the time being. But I’m gonna have to make another bracket to get it up and back so it doesn’t stick down so low. I checked your website and didn’t see a bracket like this. 494917



- HM40975
by:
2001 Chevrolet Tahoe

Good product. Sturdy, nice feature to have the 4 pin and 7 pin plugs, rather than using an adapter. Plugged right into my 2001 Tahoe wiring which was nice. Everything works as it should. My ONLY issue, is actually with etrailers installation video. We drilled the holes in the bumper, same as the video, and got everything installed. The vehicle wiring plugged into the connector at an upwards angle. This caused it to hit the hitch body before it was fully seated. We found we had to mount it to the hitch, because in the video, they have a "valley" hitch, that has more of a bend to it, than the factory round hitch. We ended up mounting it to the hitch itself. Works great. So for the product, 5 stars, for etrailer on this one issue, 4.5 stars. 206247



- HM40975
by:
2012 Chevrolet Traverse

I just received my package from Etrailer.com and it was nice to open the box and have the right part/part I ordered arrive. Opened up the box staged my parts and started the install. It was very easy with the instructions that were sent and the video on their site that anyone can do this install with no issues. Hitch was on in no less than 15 mins from opening of the box to final torquing of the bolts. The customer service at this company is top notch. I have never had anyone from a company email me before after ordering from them like I did with this company and in business today you are seeing less and less of this type of customer care and service. AWESOME job Guys and Gals I will buy all my accessories from here. 90754



- HM40975
by:
2017 Chevrolet Silverado

I just purchased a new 2017 Chevy Silverado 1500 4.3 L V6, 8ft bed, base model truck, with no options. The truck is rated to tow a 5900 lbs trailer with a CGVW limit of 11000 lbs. I will be towing a Lance 1985 travel trailer, that weighs in around 4500 lbs wet. With excellent reviews and outstanding installation videos from etrailer.com, I ordered the Curt C14006 class IV hitch; the Tekonsha proportional Prodigy P3 brake controller; the Tekonsha plug-in wiring adapter specified for my truck; Cipa custom slip-on towing mirrors; and the 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - HM40975 specified for my truck. All new Chevy Silverado 1500's (even the base model with no options) comes from the factory pre-wired with a basic seven wire trailer towing harness already installed. Everything electric just plugged in without a single cut or splice of the wiring or any other wiring modifications. I just followed the instructions in the excellent installation videos on the etrailer.com website. The hitch installed quickly and lined up perfectly with factory bolt holes already on the truck frame, no drilling required. Finally I slipped on the Cipa custom towing mirrors and I was ready to tow after about two hours work. If I would have ordered my truck with a factory tow package, integrated brake controller, and extendable towing mirrors, the options would have run me slightly over $1450 on a new Chevy truck. Instead, I spent two hours of my own time doing the installations and paid about $550 for all the parts by ordering by from etrailer.com. Nice savings. You need to have a good set of socket and open end wrenches, including a torque wrench adjustable to a minimum of 110 ft/lbs for the hitch bolts. Spend some time and review all the installation videos for the parts that you need to order. The etrailer.com website also has downloadable installation instructions provided by the parts manufacturers. 477372



- HM40975
by:
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! 567819



- HM40975
by:
2014 Chevrolet Silverado

I searched for days for something like this to work on my 2014 Chevy Silverado that did not have the factory tow package. I couldn't find anything, until I read a previous review with photos from another reviewer. Dont be fooled by the "item photo" and the "sideways position in the photo" , the bracket shown is for mounting elsewhere if desired. This item was a simple unplug the fake factory blank plug and plug in this real one installation you can do at home. This item fits perfect. Take a look at the previous review photos etc. Regular shipping was very fast. 144612


Comments

Still works great

bh - 08/27/2015

14603

- HM40975
by:
2015 Toyota Tundra

My adapter arrived last night. Took about 45 seconds to install on my 2015 Toyota Tundra Double Cab SR5, 4.6L 2WD . Fit perfectly to the already existing wiring in the bumper and snapped right into the hole. It's not listed as OEM for the Tundra, but sure fits like OEM. When I called the dealer to inquire about the part, I was quoted $279 and the parts guy couldn't guarantee the fit--comical. I haven't checked it with a test light yet, but it fit so well, that I cannot imagine it not working properly. ETrailer's customer service is perfect. Thanks guys! 198443


Comments

Not a single issue with plug adapter. Ive pulled many, many times this year and I love that I can hook up both of the most standard type plugs. Thanks, ETrailer!

Joey C - 06/16/2016

18634

- HM40975
by:
2017 Jeep Grand Cherokee

Hitch was easy to install, no issues whatsoever. Quality looks very good. I also installed the Pollack 7/4 pin connector socket with the mounting bracket. I used nuts and bolts rather than the included sheet metal bolts. No issues with it either and it also seems to be of high quality. The receiver hitch tucks up under the rear valance/bumper very nicely and imo looks better than the factory Jeep hitch. One thing is that, as noted on a couple of the installation videos on this site, one has to go to the Jeep dealer and get the Hitch Program 'turned on' in the vehicle computer before the trailer lights will work. I have yet to do that. All Jeep Grand Cherokees come with the towing package, you just have to get the computer reflashed so it will recognize the lights. 341571


Comments

Pollack 7/4 pin connector is working fine after a year as is the hitch. A very nice package overall.

Ron C - 02/16/2018

34760

- HM40975
by:

Excellent price $50.00 cheaper than OEM. Easy installation. Unplugged wiring from OEM blank cover, installed new bumper plug taking approximately 5 minutes. 163380


Comments

Good as new

Kevin T - 01/05/2016

16332

- HM40975
by:
2003 Ford F-250 and F-350 Super Duty

I really like this product. I like that the 7 blade and the 4pin plugs are internally wired. It is truley a 'plug-n-play' unit and even has corrosion preventitive in the pins. The reason I did not give this kit an 'excellent' rating is the mount bracket is too short. This required that a use a 1 inch spacer and longer bolt to attach the mount so the trailer plug could be inserted. 31977



- HM40975
by:
2005 Chevrolet Silverado

Hello George: I recently ordered the following for my 2005 Silverado : 13322 Class III Hitch - Gm 1500/2500 Pickup Curt Angled Ball Mnt - 2 Rise, 4 Drop, 10-1/4 Long Pin And Clip For Class III Iv And V Trailer Hitch Receiver Pollak 7- And 4-pole Connector Socket W/mount Bracket I got free shipping and received the hitch in 4 days. I thought I would save some money and install it myself not knowing what all it entailed. So I reviewed the U-Tube video and figured it wouldn't be so hard. The video was exactly representative of my vehicle. Everything bolted right up. To those that wish to do this I will caution you the my biggest challenge was removing the ball that was rusted onto my bumper. The other things you may run into is removing the spare because sometimes the lowering mechanisms are seized due to rust like mine was. Both the ball and spare tire hoist had to be cut off. Other than those two items the install went smoothly. The hitch looks awesome and as though it was factory installed. Thank you for a quality product and an excellent price. 311420



- HM40975
by:
Volvo 240

This is a great idea. I want to be able to use either type of plug--this does that. But I'll have a big hassle mating up the other side. I'm looking for a connector or else I'll have to solder and carefully shrink wrap all the connectors. it would be great if a pig tail was provided. It is designed for OEM applications for Ford Dodge and GM. I am putting it on a Volvo 240 Wagon. Most of the time I pull very small boat trailers. I have one bigger trailer that is 1900 lbs and wired with a 7 prong connector so I can use utility lights and trailer backup lights. This is a very nice quality connector. I just think it is STUPID not to sell it with a wiring pigtail. 18334


Comments

A pigtail can be purchased for this connector. In fact, we do have it bundle with the pigtail.

-- Patrick B - 09/03/2013

2015

- HM40975
by:
2009 GMC Sierra

This is an excellent product, well designed and constructed. So far I have not installed it because the receptacle cannot be used on my 2009 GMC Sierra 1500 WT even though I have the factory plug in the dummy receptacle see pictures. Presently, I looking at my options. 421330



- HM40975
by:

product worked well. I dropped one star because i had to elongate the mounting hole to match up with my existing holes. 643779



- HM40975
by:

Plugged right into my factory wiring on my 05 2500HD. No more adapters to use my flat 4 way. 642920


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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?


  • Adding a 7-Way Trailer Connector to a 2016 Chevrolet Express 3500 Van
  • We don't have a 7-way to plug directly into the van but I do have an option for you. If your 2016 Chevrolet Express 3500 van had a factory 7-way and it needs to be replaced you can wire in a new one with a harness like # PK11998 and then connect it to a 7-way connector like # A10-7072VP or # HM40975. If there is currently no trailer connector at all you will first need to install a 4-way connector, # 31345. Once you have the 4-way you can use our # ETBC7 kit for a fully functioning...
    view full answer...

  • Trailer Wiring for 2018 Mid-Year Jeep Grand Cherokee Without Tow Package
  • For a 2018 Jeep Grand Cherokee without the factory tow package we offer a 4-pole trailer wiring harness from Tekonsha, part # 118727, that installs at your tail light connectors. This provides a completely independent wiring setup that does not require any factory tow package components. The harness installs by plugging in at your two tail light assemblies along with connection of one single power wire that delivers 12V operating power from the vehicle battery. Installation is shown...
    view full answer...

  • Parts Needed to Install a 7-Way on a 2017 Ford Transit T250
  • Your 2017 Ford Transit T250 will have a round connector at the rear of it that the part # HM40975 would connect directly to since your vehicle has the tow package. If it didn't have the tow package you'd need to start with a 4-way like part # 118643. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller....
    view full answer...

  • Recommended 4-Way and 7-Way Trailer Wiring For 2017 Toyota Tacoma
  • We do have the wiring to fit your 2017 Toyota Tacoma. We first need to make a 4-way trailer connection, and to do that we will want the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # 118685. This harness will connect behind the tail lights of your truck and then run a hot lead wire to your battery. This will protect your vehicle wiring from any issues and it is an easy connect without any splicing into factory wiring. Just simple clip connections. It is...
    view full answer...

  • 4-Pole/7-Way Trailer Wiring Setup for 2018 Nissan Titan Without Factory 7-Way
  • Hopkins 7-way/4-Pole Vehicle Connector kit # HM40975 consists of the 4-and-7-way connector, a mounting bracket and hardware. No relays are included since this kit is intended for use on vehicles equipped with a factory 7-way tow package. The similar kit # N40975 includes relays. On a Titan without any factory wiring you can add trailer harness (that is completely independent of any included or missing factory components) by installing 4-pole powered harness kit # 119147KIT which plugs...
    view full answer...

  • 2018 Ford Explorer XLT 4 and 7-Way Recommendation
  • For your 2018 Ford Explorer the Hopkins 7 and 4-Way kit you'd need is the part # 118272. This will plug right into the square connector you have at the rear of the vehicle and will give you a 7-way you need. To convert it to a 4 and 7-way then you'd need the part # HM40975. I attached an install video for this connector on a 2018 Ford Explorer just like yours for you to check out as well. You will need to install a brake controller too to activate the trailer brakes. For a brake controller...
    view full answer...

  • Adding a 4- and 7-Way Trailer Connector to a 2015 GMC Savana Van 2500
  • If your 2015 GMC Savana came with the factory tow package then # HM40975 would plug into a factory harness already present under the van. It is usually tucked up above the spare tire or in that generally area. If that harness is not present on your van then you will need to hardwire in a trailer connector starting with # 118392 for the 4-Way. Then to add a 7-Way and retain the 4-Way I recommend # ETBC7. It also comes with the wiring and accessories to wire in a brake controller. I have...
    view full answer...

  • Truck Bed 7-Way Wiring Recommendation for 2018 Chevy Silverado 1500 for Slide In Camper
  • For a 7-way to install in the bed of your truck to make connecting your camper lights easier you would want the part # 41157. Most 7-ways will be at the rear of the truck near the bumper which doesn't work well with campers. This kit installs in line with the 7-way at the rear of your truck and gives you a second one to install in the bed. This is a confirmed fit for your 2018 Chevy Silverado 1500 too.
    view full answer...

  • Recommended Trailer Hitch And Trailer Wiring For 2017 GMC Acadia Without Factory Tow Package
  • The trailer hitch we offer that is designed for your 2017 Acadia is the Draw-Tite, part # 76023. This is a Class lll hitch and it has a 2-inch receiver opening. If you are mechanically inclined you should be able to install the hitch with no problem. If you are not comfortable you can have a trusted mechanic complete the installation for you. I am attaching the installation instructions in a separate email. If you plan on doing some towing you might be interested in etrailer ball mount...
    view full answer...

  • Mounting Bracket for Wiring Harness on Curt Hitch for 2016 Ford F-350 Super Duty
  • In order to attach a connector to the Curt Hitch # C15810 you would use a bracket such as the Curt # C57202, and attach your connector's mounting bracket to that. An example of this is shown in the video I've linked which shows the 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket # HM40975; you can forward to the 0:45 mark to see exactly how this would work. I've attached a link to our page with each of our mounting brackets for you, as well as an install video of the Curt...
    view full answer...

  • Parts Needed to Install 7-Way on 2011 Nissan Pathfinder
  • If your trailer does not have brakes your best and easiest route would be to use the adapter part # 37185. Your 4-way plugs into it's 4-way and you have both a 4-way and 7-way with just taillight functions. If you need trailer brakes you'll need quite a few more things. To star you'd need the part # 118281 for a 7-way. But you'd need to swap out the socket to the part # HM40975 as it will install and give you both the 4 and 7-way. For a brake controller I would recommend the Prodigy...
    view full answer...

  • Parts Needed to Install 7-Way on 2016 Ford F-150 with 4-Way
  • For your 2016 Ford F-150 if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # 37185 and the install harness part # 22292. If you check out the install video I attached you will see how the connections would be made. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well...
    view full answer...

  • Solution for Installing 7-Way Mounting Bracket to Trailer Hitch on 2017 Nissan Titan
  • The Draw-Tite Class III Max Frame Round Tube Receiver Hitch # 76154 referenced in your question is confirmed to fit your 2017 Nissan Titan. As you mentioned this particular model hitch features a mounting bracket on the left side (if you are facing the hitch from the rear of your truck) that allows for easy attachment of a bracket and 7-Way like the Hopkins # HM40975 or # N40975. The bracket is indeed welded to the hitch and cannot be relocated. Since your factory harness/plug is on...
    view full answer...

  • Is the 7- and 4-Pole Trailer Connector Socket a Fit for Ford Trucks
  • The 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring # HM40975-11998 is a hard wire application, as you can see in the linked installation video we made of this being put on a 2008 Ford F-250. If you only need to connect the plug, which is 7- and 4-Pole Trailer Connector Socket # HM40975, that is a direct replacement for many different years, makes and models of Ford trucks with a factory 7-way; for example it is a fit for a 2018 Ford F-150. If you let me...
    view full answer...

  • Recommended Trailer Hitch for Carrying Bikes on 2013 Audi Q7
  • To add a trailer hitch to your 2013 Audi Q7 I recommend the Draw-Tite Class III Max Frame Receiver Hitch # 75950. This hitch is confirmed to fit your vehicle and it will use existing holes in its frame for a no-drill installation. The installation process is a bit extensive and will indeed require you to remove the bumper fascia and do some trimming before installing it back on the vehicle after the hitch is in place. I have attached the complete installation instructions that you can...
    view full answer...

  • Hitch and 4-Pole/7-Way Wiring Kit for 2016 Nissan Frontier Pro4x
  • Curt 2-inch Class III hitch # 13241 is a confirmed fit on your 2016 Nissan Frontier Pro4x and installs easily as shown in the linked video. Written instructions are linked too and these tell you the tools needed and provide detailed information on bolting this on to your truck. To have wiring with both 4-pole and 7-way connectors you can use kit # 118266 for the relays and harness and simply substitute connector # HM40975 for the 7-way-only that is included in the relay kit. This includes...
    view full answer...

  • Parts Needed to Add a Brake Controller on a 2013 Jeep Grand Cherokee With or Without the Tow Package
  • Since you don't have the trailer towing package on your 2013 Jeep Grand Cherokee you do need to start off by installing a 4-Way connector. I recommend the Tekonsha T-One # 118425 as we have found Tekonsha to be one of the most reliable wiring companies that we carry. To have 7-Way and 4-Way connectors on your Jeep you also need the Universal Wiring Kit # ETBC7. This connects to the T-One and give you both connections that you need. It also includes everything you need for the 7-Way to...
    view full answer...

  • Recommended Trailer Wiring Harness for 2016 Chevrolet Express Van 3500 with Tow Package
  • Since your 2016 Chevy Express Van features the factory tow package, I recommend the Hopkins 7- and 4-Pole Trailer Connector Socket # HM40975. This custom-fit connector will install by plugging right into the OEM wiring system beneath the vehicle. It will provide you with both a 7-Way and 4-Way connector, so you have some versatility in case you ever tow a trailer with a 4-Way. This will be a simple, plug-and-play installation and the end result will give you a nice, from the factory appearance....
    view full answer...

  • 7-Way, 4-Way and Trailer Hitch Recommendation for 2018 Nissan Pathfinder
  • Everything you mentioned will work great on your 2018 Nissan Pathfinder. The Draw Tite hitch part # 76031 is a confirmed fit, the wiring kit part # 118273 is the correct 7-way and then the # HM40975 can easily replace the socket of the # 118273 to give you both a 7 and 4-way. Your hands free lift gate will not be affected either. At worst you might have to kick to either side of the hitch opening.
    view full answer...

  • Trailer Wiring Needed for a 2017 Ford Transit T250
  • If your 2017 Ford Transit T250 came with the factory tow package then you simply need the Hopkins # HM40975 to add both a 7-Way and a 4-Way connector. This will plug into the US Car Connector at the rear of your Transit. We also have kits that can be used if your Transit doesn't have the factory tow package. For basic trailer lighting functions use the Tekonsha T-One # 118643 which plugs into connectors behind the tail lights on your Transit and are powered through the 12V lead that...
    view full answer...


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




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Info for this part was:

Test Fit:
Joe V
Photos by:
Theodore B
Expert Research:
Michael L
Video Edited:
Zack K
Expert Research:
Sarah L
Video by:
Andrew K
Written by:
Tyler C
Expert Research:
Robert G
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Reno H
Expert Research:
Jameson C
Video Edited:
Joshua S
Test Fit:
Nicholas E
Video Edited:
Jacob T
Expert Research:
John H
Updated by:
Adele M
Video Edited:
Andrew L
Expert Research:
Adam R
Video Edited:
Kathleen M
Video Edited:
Dustin K
Photos by:
Jim W
Installed by:
Cole B
Test Fit:
Shane T
Expert Research:
Lori W
Expert Research:
Jeffrey L
Video by:
Alan C
Test Fit:
Randy B
Video Edited:
Chris R
Test Fit:
Joe B
Updated by:
Sarah W
Updated by:
Alexander C
Video by:
Zach D
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
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Video by:
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Test Fit:
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