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Replacement Mounting Bracket for Hopkins 7- and 4-Pole Trailer Connector Socket

Replacement Mounting Bracket for Hopkins 7- and 4-Pole Trailer Connector Socket

Item # HM40978
Our Price: $7.63
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Replaces the mounting bracket for your Hopkins 7- and 4- pole trailer connector socket (HM40975 or HM40975-11998). 1-800-940-8924 to order Pollak accessories and parts part number HM40978 or order online at Free expert support on all Pollak products. Great prices and Fastest Shipping for Replacement Mounting Bracket for Hopkins 7- and 4-Pole Trailer Connector Socket. Accessories and Parts reviews from real customers.
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  • Reviews (238)
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Pollak Accessories and Parts - HM40978

  • Wiring
  • Mounting Hardware
  • Brackets
  • 4 Round
  • 7 Round
  • Pollak

Replaces the mounting bracket for your Hopkins 7- and 4- pole trailer connector socket (HM40975 or HM40975-11998).


  • Replaces the mounting bracket for your Hopkins 7- and 4- pole trailer connector socket (HM40975 or HM40975-11998)
  • Quantity: 1 mounting bracket

40978 Replacement Mounting Bracket for Hopkins 7- and 4-Pole Trailer Connector Socket

California residents: click here

Video of Replacement Mounting Bracket for Hopkins 7- and 4-Pole Trailer Connector Socket

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

Video Transcript for Pollak Replacement Bracket for 7 and 4 Pole Trailer Connectors Review

Today we'll be taking a look at and installing our replacement mounting bracket for Hopkins seven pull and four pull trailer connector sockets, Part Number HM40978. This is what it looks while installed using our line bracket here. It's nice and firm so it's not going to go anywhere. You can see this truck is shaking because I've pulled on it. This is the connector. This is how this mounts up in here. If you lost or broke your bracket, this is your option to go with instead of buying a whole new kit.

I'm going to pull this through. It connects our seven pull/four pull in place. Set that through and it just snaps in place. That's not going to go anywhere and you have full access to both sides of your trailer connector. Let's show you how it's installed. To make this work, I'm going to be using our long bracket, so clamp around our frame, giving us a place to mount our bracket here.

We use our bolt here, pass that through. On the back side I'm going to put a washer and then the nut that comes with it. These washers don't come with the kit, but I suggest finding some because the holes are kind of big on the back and you want a nice place for these to grab onto. Holding the nuts on the back side, the star washer kind of does the work for us. I'm just going to tighten it down. Then I can grab my clamp and go around our hitch to hold it in place.

The clamp just goes through the bracket and I feed it through itself right here as much as I can. Here's the bolt. I hold it away from the bracket, and when I'm ready to tighten it I push the bolt towards it so that the teeth can grab it. Now that I've got my bolt the way I want it, I'm going to go ahead and start tightening it. I'm going to kind of tuck this up behind the hitch so it doesn't grab onto anything while we're going down the road. Confirm it's nice and tight, and I can break that off or fold it, which I'm just going to fold it, and it's nice and tucked away behind the hitch.

That's our look at the replacement mounting bracket, Part Number HM40978.Speaker 2: You can find this and everything else right here at What's up man.

Customer Satisfaction Score:

Customer Reviews

Replacement Mounting Bracket for Hopkins 7- and 4-Pole Trailer Connector Socket - HM40978

Average Customer Rating:  4.9 out of 5 stars   (238 Customer Reviews)

Replaces the mounting bracket for your Hopkins 7- and 4- pole trailer connector socket (HM40975 or HM40975-11998).


Exactly what I needed to relocate the trailer plug on my 2019 4Runner. I had to use two spacers I made out of an aluminum tube that I already had to get the clearance from the bumper facia but this worked perfectly. The plug just snapped out of the original factory bracket and snapped right into this bracket. Now I don't have to lay under my 4Runner to plug in and unplug my boat and camper.

Albert G.


After a year of using the relocating bracket, its one of the best things Ive done to make hooking up my boat and camper.


Connector snapped right in and it's stiff enough to pull the trailer connector out without much flexing.
Since the connector is on its side, it is much higher off the ground than other brackets; less likely to be damaged.


Awesome fit on my 07 f150 the only problem was I couldn't open the doors on the front after being mounted flush. Easy redneck fix tho grabbed a 5/8 nut and a longer 1/2" bolt and nut and used the 5/8 as a spacer between the mount and the stock holes. Looks a million times better then being held up with zip ties like before.

Jeffrey M.


Still holding up perfectly used plenty of times


Exactly what was needed. Direct fit, plug and play. Saved the day! Amazing fast shipping too. Finished my hitch project perfectly.


Installed a lift gate or "Tommy Lift" so I had to install an aftermarket hitch and needed a bracket for the trailer wiring harness this fits great on my 2022 GMC Sierra "refresh".


Looked everywhere for a bracket to reposition the trailer sockets on my 2018 4Runner. Factory placement had it buried under the body. My boat trailer wiring could barely reach the 4-flat socket and I had to actually lie on the ground to plug in my lights. This was the only product I could find that fit my needs. I did have to cut two 1" spacers for the product to clear the plastic bumper so I could access the connector sockets. It did fit without drilling any holes which was important to me. I just needed to buy longer bolts. Happy with the results - no more lying on the ground to plug in my trailer!


Didn't use it at this time, found a covered up factory mounting hole in my bumper and use that. will keep it if needed for another vehicle.


We use this bracket all the time on truck bodies we install . Etralier always has stock and good prices


My application called for a flat installation. I had to cut the 90' part off but the cut out for the 7 pole trailer connector was perfect.


The Original single plug was hung too low and scraped the driveway entry as I entered or left the driveway. Your bracket allowed me to relocate the better plug assembly closer to the bumper much higher than the hitch receiver.


Perfect fit- Very happy to receive today. This will work great and look nice too! Thank you for the follow up Carol!!


Bought this a year ago. Easy to install with Mopar wiring kit onto my Jeep. Still doing what it’s supposed to do.


It works. I needed to relocate the factory connector from underneath my 4Runner to a place where it was actually usable. This did the trick.


Perfect, exactly what i was looking for. Super easy install.


Just what I needed. Love it. Easy to in stall


It was perfect. Just what I wanted and even came with the mounting bolts.


Perfect fit



Two thumbs up


I removed the bumper to install a lift gate. The bracket allowed me to install the OEM trailer connector. Perfect fit!


The bracket worked perfectly with my Mopar 7/4Pin plug on my 2013 Jeep Grand Cherokee. It snapped right into the mounting bracket like it was custom built.
Service and shipping were from eTailer were excellent



The bracket has held up well. No problems what at all.


Repeat customer, products are all top quality but more importantly the customer service is outstanding. Today most vendors and etrailers view support and service as a cost center; Seth has proven once again that quality customer facing roles are a vital role in the overall success of a transaction and business. Other vendors would do well to take a page from Seth's book in dealing with their customers.



Been flawless the past year.


By moving the plug over it makes it easier to plug in a adapter without it working loose. Only took about 5 minutes to install and well worth the time and the cost of the bracket


Awesome products. Did exactly what the product videos showed to do and in less than 10 minutes broken trailer plug bracket fix. I will be recommending your services and products. Thank you for a simple quick fix.

Jeremy C.


Very well


it was excactly what I was looking for. My trailer light plug fits perfectly in this bracket and it is an excellent product.



Excellent product. 1 Year later and I would purchase again.


This is made to hold my OEM Ford F150's trailer wiring connector. It hasn't fallen off get, so I suppose it does about a good a job as you could expect from such a part.

Rob S.


The plug is still hanging in there with heavy ranch use. It does a simple job and continue to do it. I would buy again if I had the need to and would recommend to others.


Don’t get me wrong I loved it the price was right and I needed one couldn’t find it anywhere but I knew etrailer would have it, I have a 22 Jeep grand Cherokee L limited and the hitch and wiring is hidden behind an enclosure I did have to make some modifications and grind a little notch in it and install it backwards in order for it to work but it ended up being the cats meow thank you etrailer like always you’re awesome, it was five stars but doing a little work I thought four

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