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

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

Item # HM40975-11998
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Custom Fit Vehicle Wiring

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Hopkins Custom Fit Vehicle Wiring - HM40975-11998
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Tow a trailer with either a 7-way or 4-way plug with this dual vehicle-end connector. Included pigtail harness hardwires into your vehicle and the connector end mates with the 7-pole socket to form a weathertight seal. Call 800-298-1624 to order Hopkins custom fit vehicle wiring part number HM40975-11998 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price and Fastest Shipping for 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End. Custom Fit Vehicle Wiring reviews from real customers.
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Hopkins Custom Fit Vehicle Wiring - HM40975-11998

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

Tow a trailer with either a 7-way or 4-way plug with this dual vehicle-end connector. Included pigtail harness hardwires into your vehicle and the connector end mates with the 7-pole socket to form a weathertight seal.


Features:

  • Dual connector lets you hook up to a trailer with either a 7-pole, RV-style plug or a 4-way flat plug
  • Pigtail harness hardwires into your vehicle and connects to 7-way socket
    • Includes color-coded 7-wire leads and 1/2" convoluted tubing
    • Forms weathertight seal on back of socket to keep out moisture and prevent corrosion
  • Rubber gasket provides excellent weather protection
  • Integrated stainless steel spring lets you easily open and close socket covers
  • High-impact ABS plastic construction is extra durable
  • Sturdy steel mounting bracket installs on bumper with included screws
    • Black epoxy coating resists rust


Specs:

  • 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 warranty


Dimensions of bracket

Wiring Configuration


Wire ColorCircuitWire Gauge
RedLeft turn and stop14 Gauge
WhiteGround10 Gauge
BlueElectric brakes12 Gauge
GreenRight turn and stop14 Gauge
BlackBattery12 Gauge
BrownRunning lights14 Gauge
YellowReverse lights14 Gauge


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

11998 Pollak Pigtail Wiring Harness for 7-Way RV Socket

Installation Details HM40975-11998 Installation instructionsAlternate Instructions HM40975-11998 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End - HM40975-11998

Average Customer Rating:  4.8 out of 5 stars   (398 Customer Reviews)

Tow a trailer with either a 7-way or 4-way plug with this dual vehicle-end connector. Included pigtail harness hardwires into your vehicle and the connector end mates with the 7-pole socket to form a weathertight seal.

- HM40975-11998
by:
2008 Ford F-150

Mounted perfectly to existing bracket on 2008 F150 Lariat with factory towing package, cut off connector from wiring harness and heat shrunk wires together to existing harness


Comments
Perfect!
Greg - 07/22/2019



- HM40975-11998
by:
Chevrolet Colorado

The service provided by George and Lacey was the best part of this transaction. Lacey helped me find the right parts and sent me a video about installation. They both worked to correct my order and customized the delivery date. The parts were precisely what I needed to get power to the bumper for a small trailer and bike rack. A few comments: order more butt connectors as the mfr sent 6 and there were seven wires on my Colorado. When connecting the tail harness to the truck harness, be sure all the wires on each side are the same length. The yellow wire strippers take some getting used to, so practice on several wires first. I’m an ‘average’ handy person so these last two suggestions didn’t come naturally to me, but overall this was a pretty simple installation. When I tested it and all the lights worked, I was a happy camper.



- HM40975-11998
by:
2017 Hyundai Santa Fe

I have a 2017 SantaFe I have 2 different trailers and need both types of plugs I am using this product along with a curt class III hitch and a curt 56332 wiring harness. I want the finished outlet to be behind the factory cover I had to modify the Hopkins bracket by bending it in the opposite direction on a angle because the hitch is in the way .a little effort and its great jeff



- HM40975-11998
by:
2012 Dodge Ram Pickup

This is a fantastic quality part and an excellent alternative to Ford's OE connector (the difference being this one is far less expensive and does not have the Ford emblem. I used the connector to replace the 7-Pin/4-Pin combination plug on my 2002 Ford Super Duty after swapping the bed/bumper/tailgate from a 2012 Super Duty. It is a vastly superior connector in that the 4-Pin is integrally wired with the 7-Pin as opposed to having the 4-Pin spliced into the harness. I would definitely recommend this part for any towing rig. I eve put one on my father's 1995 Dodge Ram 2500. Don't hesitate to order this one!



- HM40975-11998
by:
1992 Ford F-150

The trailer plug went bad on my 92 F150 several years ago. This plug is the same as my 10 F350. I like the combination 7 spade/4 pin. Other combos have a rubber flap to cover the 4 pin plug. I doubt I’m that disciplined and I would think that rubber cover would dry rot and break off. This plug has spring closure doors and looks great!



- HM40975-11998
by:
Ford F-350 Super Duty

This is a great affordable option to replace your worn out or damaged OEM trailer recepticle. The fit is perfect. It is made by Pollak which is the same as the Ford one you replace. I damaged mine and took the pin connectors out of new housing and installed it on my F350 without splicing wires. Worked perfectly.



- HM40975-11998
by:
2016 GMC Canyon

Great product! Fits the factory hole in the bumper perfectly. Attaching the wires was a pain but that was due to GM saving $1 by just cutting the wire ends and not installing a plug......but they were all there so that was a plus. If you do install this setup AND you install a hitch, leave the spare tire down while you attach the wires. There's plenty of wire with the plug but the factory wires are up kinda close to the underside of the bed so not a lotta room. ALSO spend the extra couple dollars and get the heat shrink butt connectors, they're available here in whatever size you need. Another thing to think about, if you plan on eventually installing bed/ cargo lights any time soon, now is the time to add that extra power wire before you crimp, shrink, and tape the hot wire......



- HM40975-11998
by:
2018 Chrysler Pacifica

Bought this trailer connector to use instead of the flat 4 wire connector. Wanted a nice finished look on the rear of the vehicle without any hanging wires. Mounts to the Draw Tite mounting bracket without any modification. Only minor problem I had was with the wiring. The wire colors are not the same between the 4 and 7 pole connector. A call to etrailer got the problem resolved. Great customer service!



- HM40975-11998
by:

Instructions were easy to follow. Recommend using heat shrink tubing, I can’t remember if the kit comes with it or not.



- HM40975-11998
by:

Works well with the trailer hitch and the price was just right.



- HM40975-11998
by:

This is the same look as a factory install. I was greatly pleased with the overall installation. Super easy to wire up and looks great in the bumper. My truck has the clean factory look for way less than what they had quoted for an install.


Comments
Installation installation and wire color coding information is provided and linked above in the product description.
-- Etrailer Expert Mike L - 07/17/2019


- HM40975-11998
by:

Still working great at the 1 year mark. No issues. I did heat shrink all the connectors.



- HM40975-11998
by:

excellent instructions for instlllation and no problems on the road



- HM40975-11998
by:
2007 Lincoln MKX

Nice wiring harness for an older model vehicle. Not appropriate for 2007 Lincoln MKX.



- HM40975-11998
by:
2016 Chevrolet Colorado

Easy installation! Kit only supplied 6 connectors when there were 7 wires ...... oops!


Comments
Steve, the 6 connectors are correct. The ring connector that attaches to the ground wire is the 7th connector.
-- Etrailer Expert Laura E - 01/24/2018

Comments
I still like the wiring harness I purchased from your company last year. Thank you for asking.
Steve B - 04/04/2018



- HM40975-11998
by:

Easy to hook up I can wrench a little but even the simplest wiring jobs sometimes leave me dumbfounded and I wired this up and all lights work and the windshield wipers don’t even come on when I use turn signals



- HM40975-11998
by:

I’m glad I chose this over a single plug! No matter what you have on the hitch, you’ll have the plug for it. The pigtail is plenty long enough and the bracket makes for a simple installation. Get some shrink tube or shrink wrap butt connectors as the ones included aren’t going to keep weather out for long.



- HM40975-11998
by:
2006 GMC Sierra

Only gripe, the plug wiring on the back is at a 45° and the plug in on the front is at a 90°, so dont wire up the wires by the wiring plug but how the plug in on the front would plug in, I made the mistake, but other than that, works great, looks great, fixes botched wiring like my truck had with just twisted together and taped up wires, easy install



- HM40975-11998
by:
2000 Ford F-450 Cab and Chassis

Easy install and fast delivery. just what I needed. My go to place for RV and Trailer parts



- HM40975-11998
by:

Easy to install, everything works. The video online definitely helped putting the wires together, not all colours match . So great help having the d.i.y vid handy! Thanks



- HM40975-11998
by:

Very nice plug assemblyand easy to inst all



- HM40975-11998
by:

Fit exactly as required and works properly. U-tube instructions were easy to follow and installing went smoothly except for the one butt connector that I could not get the wire to stay in.



- HM40975-11998
by:

Perfect connector for what I was looking for on my 2019 RAV4. I originally installed it with the L bracket, but later changed it to be flush in the bumper. Looks very clean. The prefab pigtail made install into the car very easy as well.



- HM40975-11998
by:

Product is excellent, customer service is exceptional. Have no problems very helpful people and great products. Will definitely order again.


Comments
awesome, worked great!
christine l - 05/27/2021


- HM40975-11998
by:
2016 GMC Canyon

Fits good installed in 15 mins, Works g reat.


Comments
Look better than factory job.
Wayne H - 07/11/2021

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Ask the Experts about this Hopkins Custom Fit Vehicle Wiring

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    Yes, the Hopkins 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring # HM40975-11998 is in stock. Installing this on a 2016 Chevy Colorado should take no time at all (maybe 20 minutes tops if you aren't familiar with it?) because all you have to do is replace the knockout plug in the bumper with this connector and then splice in the wiring harness to the OEM wiring on the driver's side of the bumper. Since this wiring will be out in the elements I recommend using...
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  • 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...
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  • Recommended 4-Pole and 7-way Trailer Wiring Harness for 2021 Hyunjdai Palisade
    It won't be a problem at all. Once the time comes to install a brake controller, we offer install kits that include an adapter that would convert the 4 pin provided by the 4 pin connector like # 118784 into a 7-way. The easiest-installing brake controller we offer for the 2021 Palisade would be the Curt Echo Wireless Brake Controller, part # C51180. To install the controller, you'd use the # ETBC7L install kit, which includes the adapter I mentioned above. The Curt Echo would communicate...
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  • 7-Way/4-Way Kit that Fits 2021 Chevy Silverado 1500
    Yes the 7-way/4-way kit part # HM40975-11998 does fit your 2021 Chevy Silverado but since your truck already has the round connector that comes with this kit you'd only really need the part # HM40975.
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  • Replacement Trailer Pigtail Harness and Connector for a 2018 Ram 2500
    The 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring part # HM40975-11998 is what I recommend using on a 2018 Ram 2500 as the pigtail and trailer connector would be the same as what would have come on the truck when rolled off the assembly line. If you have a cutout in the rear bumper for the trailer connector you can simply discard the included mounting bracket. Please disregard any fit notes on the product page. If you just need the pigtail harness you can...
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  • Correct In-Bed Trailer Plug and Harness for 5th Wheel On 2021 Chevy Silverado 2500/3500
    The correct plug and harness that is designed for the cutout in the bed of a 2021 Chevrolet Silverado 2500 is the 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring part # HM40975-11998. It will hardwire into the wires under the bed and then install into the factory bed cutout. The metal bracket will not be used. I have attached an install video below.
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  • Adding a 7-Way Trailer Connector to a 2008 Toyota Highlander Hybrid with Existing 4-Way Connector
    You could install the Pollak 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring # HM40975-11998 on your 2008 Toyota Highlander with the 4-Way, # 118449 already installed. You would have to cut off the 4-Way plug on the 118449. Then the white wires would connect to each other, the 4-Way brown wire would connect to the 7-Way brown wire. The 4-Way yellow wire would connect to the 7-Way red wire. And the 4-Way green wire would connect to the 7-Way green wire. On...
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  • 2016 Toyota Tacoma TRD Sport 7-Way Recommendation to Fit Bumper Cut Out
    You are on the right track for sure to install the # HM40975-11998. You would first need to start with a 4-way like part # C56349 and then to convert it to a 7-way you would need to cut off the 4-way of this hardwire and then hardwire it to the part # HM40975-11998.
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  • Could 7-Way # HM40975-11998 Fit 2021 Hyundai Palisade
    While we haven't had the # HM40975-11998 confirmed as a fit for your 2021 Hyundai Palisade if you have the round connector needed for this you'd easily be able to use it.
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  • Adding 7-Way and 4-Way to 2017 Toyota Tacoma Without Tow Package
    The reason the 7-Pole and 4-Pole Trailer Connector Sockets # HM40975-11998 has more wires than the 4-pin is because this part is used for a 7-way and 4-way. We can help accomplish your goal but first you would first need to add 4-way # 118685. From there you will need # 5506, which is similar to the # ETBC7, to get the functions of the 7-way and you can then hardwire # HM40975-11998 to get the look you want. There is no video for how to accomplish specifically what you want to do, so...
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  • Adding a 7-Way Trailer Connector to a 2002 Ford F-150 with Factory 4-Way Flat Trailer Connector
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  • Installing a 7-Way Trailer Connector On a 2002 Toyota Tundra with 4-Way Flat Connector
    Since the Hopkins 7 and 4-Way trailer connector # HM40975-11998 includes a hardwire harness it technically could be installed on any vehicle, including your 2002 Toyota Tundra with a 4-Way connector. But you will need to do some hardwiring and extra parts would still be needed so to make it more simple I recommend # ETBC7. With the ETBC7 all you will do is plug the 4-Way into it and then hardwire the remaining 4 wires. White is ground, attaches to truck frame, purple is reverse lights...
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  • Will Hopkins 7-Way and 4-Way part # HM40975-11998 Fit 2017 GMC Sierra 1500
    Your 2017 GMC Sierra 1500 will work great with the # HM40975-11998 that you have but in reality you only will have to use the 7-way portion of the setup. The # HM40975 portion of the setup is just the 7-way and bracket which will attach directly to the 7-way wiring that your truck already has. There would be no need for hardwiring. Check out the install video I attached for more info as well.
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    In order to install a 7-way trailer connector on your 2002 Ford F-450, I recommend using the 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring part # HM40975-11998. Unfortunately, we do not have any plug and play trailer connectors compatible with your vehicle therefore hardwiring will be your only option. There should be a pigtail or group of blunt cut wires that are tied off on the drivers side frame near the spare tire that will hold the functions for the...
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    We have all of the wiring you need for your 1996 Ram, but there is no all-in-one harness available. First I recommend part # HM40975-11998. This is a 7-pole and 4-pole trailer connector with the bracket and wiring. This will hardwire to the existing wires you have for your 4-way. You can use a circuit tester like part # 40376 to identify the wires when you are attaching them. Next, I recommend part # 5506. This is a universal wiring kit for brake controllers. This includes wiring...
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    Unfortunately, we do not have a harness for your 2014 Ford E-350 that will plug into the connector in your photo. For a replacement you can hardwire in the # HM40975-11998 to install a 7-way connector. You can either cut off the connector you have and wire this in place or splice in.
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    The Hopkins 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End # HM40975-11998 will absolutely work on your 1995 Ford F-350. Since you already have a brake controller, the wiring is likely already connected but it not you can find the tow package wires on the rear frame rail. If you haven't already purchased your step bumper, we have the Westin Fey Surestep Deluxe XLT Rear Bumper with Custom Installation Kit - Chrome Plated Steel # 21007-92230...
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  • Can I Use Both The 7-Way and 4-Way At The Same Time?
    I have a solution for you, but you won't be able to use both the 7 way and 4 way plugs on the Hopkins # HM40975-11998 at the same time because the cover flaps do not allow for both to be open simultaneously. In order to plug both your 7 way and 4 way into the same plug you would need to use the Curt Trailer Connector Adapter # C57672 , which has the plugs side by side with dust caps that flip up to allow you to connect your plugs as desired. If you don't already have a wiring harness...
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    If the trailer has electric brakes that you want to use or that are required by law then you will need a brake controller to activate the trailer brakes. If your 2015 Chevy Colorado came with a factory 7-Way then the wiring to install a brake controller is located under the dash generally to the left of the steering column and held together with a white tag. The tag lists the functions of the vehicle wires. Brake controller wiring is white for ground, black for 12 volt power, blue for output...
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    I'm not sure what you mean by harness clips, but the # HM40975 will work as a replacement for the existing 7-way on your 2013 Ford F150. If the US car connector that plugged into the back of your existing 7-way has been damaged, then you can cut off the existing US car connector and wire on the # PK11998 pigtail. The pigtail wires are color coded as follows: Red - Left Turn and Stop - 14 gauge White - Ground - 10 gauge Blue - Electric Brakes - 12 gauge Green - Right Turn and Stop...
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    It sounds like you may need to install a fuse in the fuse block under the hood on your 2002 Jeep Liberty to get the 12 volt power circuit at the OEM 7-Way connector to work. But the first thing I would do is check the bulb just to be sure it is not bad, then check to see if the interior trailer light is connected to the running light circuit. Turn on the running lights and if there is a switch in the trailer make sure it is on. If the light does not light, then you can check the power circuit...
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    The harness you see pictured in connector # HM40975-11998 plugs into the back of that connector so it would look like the opposite of what is on the back of the connector. If you do not need the wiring harness part then you would just use # HM40975. If you do need the harness it will have to be wired into the trucks tow package wiring by function by testing the vehicle wiring using a circuit tester such as # 40376 to determine the functions. The wire functions of the harness in # HM40975-11998...
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    Installing a 7-Way and 4-Way combination trailer connector, like part # HM40975-11998, that you referenced, on your 1995 Ford F-350 is fairly easy, but for these trucks there are 2 different wiring situations if you do not have a factory 7-way trailer connector. If your vehicle has factory 4-Way trailer wiring at the back you can use the Pollak 7-Pole and 4-Pole Trailer Connector, # HM40975-11998, and splice the wires to the wires under the rear of the vehicle along the drivers side...
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  • Recommended 7-Way Trailer Connector and Brake Controller for 2016 Chevrolet Colorado Work Truck 2WD
    For your 2016 Chevy Colorado without trailering package I recommend the 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End # HM40975-11998. This will come with the wiring pigtail and everything you need. I recommend using heat shrink butt connectors like # DW05745-10 for a better seal and more resistance to the elements because of the location. I've also attached a video of the installation to assist. Then if you need a brake controller for a...
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  • Testing Wires of 2007 Ford E-350 Super-Duty for Installing 7-Way
    We can help you determine what the functions of the wires on your vehicle are for, but we don't have that info by wire color. You'll need to use a circuit tester like part # PTW2993 to test each of the wires as you apply the different taillight functions to determine what each wire carries. Then you can wire them to the 7-way part # HM40975-11998 and be set. I attached a diagram for the wire colors of the 7-way for you to check out.
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    Image 1 for
  • Recommended Trailer Wiring Connector On 2004 Holiday Rambler Endeavor
    For your 2004 Holiday Rambler Endeavor, I recommend you use a 7-way instead of a 6-way and get a connector like the 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End # HM40975-11998. This kit will give you the trailer connector, the mount, the butt connectors and the ring terminal for installation. The wiring of this trailer connection is as follows and I recommend using a circuit tester like # PTW2993 to ensure you match function to function on...
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  • Part Needed to Convert 4-Pole Wiring on 2008 Acura MDX to 7-Way Type Trailer Connector
    I didn't find any order history for wiring for your 2008 Acura MDX but if you do have a 4-pole kit installed such as one of the compatible items like # C56038 shown on the linked page then we sure can help you with upgrading that wiring format to the 7-way type like # HM40975-11998. The one item you will use is our 7-Way install kit # ETBC7. This all-inclusive kit has everything you need, from the 7-way socket to the wiring, connectors and circuit breakers. This will give you a fully-functioning...
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