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7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket, Chrysler/Dodge OEM Plug Adapter

7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket, Chrysler/Dodge OEM Plug Adapter

Item # HM40975-11933
Our Price: $100.23
Custom Fit Vehicle Wiring

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This 7- and 4-pole 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 with Chrysler/Dodge OEM plug adapter and bracket. 1-800-940-8924 to order Pollak custom fit vehicle wiring part number HM40975-11933 or order online at Free expert support on all Pollak products. Great prices and Fastest Shipping for 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket, Chrysler/Dodge OEM Plug Adapter. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (53)
  • Q & A (0)
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Pollak Custom Fit Vehicle Wiring - HM40975-11933

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

This 7- and 4-pole 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 with Chrysler/Dodge OEM plug adapter and bracket.


  • 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
  • Mounting bracket for easy, snap-in socket installation
    • Black, epoxy-coated steel construction


  • Application:
    • Replaces factory 7-way connector on trucks and SUVs
    • Can be used to add a connector to 2003 and newer Chrysler and Dodge 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

11-933 Pollak OEM Plug Adapter

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

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket, Chrysler/Dodge OEM Plug Adapter - HM40975-11933

Average Customer Rating:  4.8 out of 5 stars   (53 Customer Reviews)

This 7- and 4-pole 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 with Chrysler/Dodge OEM plug adapter and bracket.

1998 Jeep Cherokee

Mounted this on a 1998 Jeep Cherokee XJ with factory towing to replace the 7 pole round socket, the connection into the factory harness was plug and play, perfect fit, bracket easily mounted to my Heavy off road bumper, looks like it belonged there all along.


Really fast shipping. Product just as described. The bracket is strong and sturdy.


Of course, price matters - and everything is too expensive right now, but what matters more is quality. I appreciate being able to contact someone (you), and get just what I’m looking for. The quality seems completely top notch, and I’m anxious to get this installed and start using it.

2017 Jeep Grand Cherokee

Found out I didn't need the wiring harness. The Jeep just plugged right into the back of the 7 way. was done in 7 minutes. Not knowing I didn't need the wiring harness would have save me $45.

Etrailer Expert

Heather A.


If you do not need the wiring on your 2017 Jeep Grand Cherokee I recommend part # HM40975.

2015 Jeep Grand Cherokee

Thanks to the excellent customer service Rep (Nicole T ). I was able to install my trailer hitch and harness with ease. So easy my 7 & 8 yr olds did it. looks great on my 2015 Grand Cherokee limited. we can't wait to mount the bike rack and goooooo! Thank you too much Nicole T.


The kit was easy to replace. I had water intrusion and the connections were corroded. I am now getting the same fault code/warning on my truck a year later. Not sure if this replacement part has water / failed - need to remove once the weather warms up.

Etrailer Expert

Tyler M.


Hi Terry, Thanks for your feedback! When using these connectors, I would recommend using dielectric grease to help keep contaminates out of the connection points. Using Loctite Bulb, Lamp, and Electrical Connection Dielectric Grease, part LT37534 , will help prevent the corrosion of the connectors.

2017 Jeep Grand Cherokee

15 minute install. High quality craftsmanship. Would highly recommend!!! Incredibly clean install on a brand new vehicle


This company have been nothing but understanding and professional. I ordered my parts for my new RV and they came through without a hitch. I liked that I could track the package along the way. Keep up the good work y’all

Jeep Grand Cherokee

After one year the product is still performing well. The cable provided made it easy to attach it to my stock wiring harness on the Grand Cherokee.

2018 Jeep Grand Cherokee

My 2018 Grand Cherokee didn't need the wire harness, so it cost me an extra 20 some dollars per part I didn't need, so jeep owners look under and see if you have a round plug in the back with a end cap on. No one tells you what to look for.

2017 Jeep Cherokee

Perfect fit on my 2017 Jeep Cherokee .



This Product is working perfect ! Quick and easy installation, Well built to last. I recommend it to all who need to make a connection.....

2009 Jeep Wrangler

Perfect for replacing the factory connectors and mount on my 2009 Wrangler JKU


Perfect, eliminates the need for adapto rs.


As advertised, plugged directly into my oem harness.

2012 Dodge Ram Pickup

The product is great, but it does not compare to your customer service. America’s greatest company! Thanks for all you do!

2008 Jeep Wrangler Unlimited

Simple plug for trailer connection, best price & quality I could find!

2012 GMC Sierra

Exactly as advertised! Perfect fit. Made the job easy.



Have a 2008 F-250 . Can I just order the 7 pin and 4 pin connector without the bracket and pigtail. Thank you

Patrick B.


This part is only sold with the harness and the bracket included. This plug will not fit into the factory sockets or mounts for 7-ways. The closes thing we have that might be able to fit your factory opening is part 30955.

2015 Chevrolet Silverado 1500

All good speedy shipping thanks so much



All good

1994 Chevrolet C/K Series Pickup

great. etrailer is always the best.


Have yet to install the product. I simply wanted to compliment the exceptional assistance I received from Anthony who walked me through what I needed. Thank you!!


Makes a nice convenient hook up and protected from damage and weather.

1995 Ford F-250 and F-350

Great product


Everything was delivered as expected w/o anything missing, plus nothing broken. Thank you very much for filling my needs.


Delivery was very fast. I haven't had a chance to put the item onto my truck but as far as I can tell there should be no troubles.


Easy to install,great product.

Show More Reviews

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

  • Which Curt Hitch Provides More Ground Clearance for a 2018 Jeep Cherokee
    The distance from the ground to the top of the inside edge on the Curt Trailer Hitch Receiver part # C13171 is 11-1/4" when we installed it on a 2017 Jeep Cherokee. The distance from the ground to the top of the inside edge on the Curt Trailer Hitch Receiver part # C13172 is 13" when we installed it on a 2017 Jeep Cherokee. Therefore, part # C13172 will provide more ground clearance than part # C13171. Please note that we have not yet installed either of these hitches on a 2018 Jeep Cherokee...
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  • Installing 7-Way Trailer Connector on 2010 Ford Escape with Existing 4-Pole
    To convert your existing 4-pole to a 7-way trailer connector, I would recommend using an adapter, like part # 37185. The adapter would plug into your existing 4-pole, and once the white wire is grounded, and the trailer is plugged in, your trailer lighting functions will be active. The blue, black and purple wires carry the brake output, 12-volt accessory power and reverse light circuit, respectively. If either of the three circuits is not needed, one or all three wires can be bundled up...
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  • Easy to Install Trailer Brake Controller for 2008 Jeep Wrangler Unlimited with 4-Pole Wiring
    Yes, we can help you with the items needed to upgrade the 4-pole wiring on the 2008 Wrangler Unlimited to a 7-way and to install a trailer brake controller. The Jeep does not have an under-dash port to connect a controller but we do have an option that will be very easy to install. For the easiest possible installation I recommend the Curt Echo # C51180 and 7-way upgrade/install kit # ETBC7L. If your Dad has a compatible smartphone then these two items are all that is needed to add the...
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  • Replacing a Broken Wiring Harness on a 2007 Dodge Ram Pickup
    If the wiring is damaged, it is always recommended said wiring be replaced or repaired. That being said, I am not aware of a specific part to remedy this without replacing the whole part. You could use Deka Cable Ties like # DW05727-25 as a temporary solution, however. If the vehicle is a 2007 Dodge Ram Pickup, you would use the Pollak 7 Way # HM40975-11933, or the Tekonsha T-One # 118381 if you have a 4 Flat. If the trailer needs the replacement, the Wesbar 4-Pole connector # W787268...
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  • Replacing Broken 7-Way Trailer Connector on 2002 Ford F150
    Going with the # PK11998 would be your best bet. The 4-foot pigtail does include the grey locking tab you speak of, as shown in the photo I edited for you. I will also provide the color code for the pigtail wiring, as it might not necessarily wire up color-for-color to your F150. To determine function, you might need a circuit tester like part # PTW2993, if you do not already have one.
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  • Trailer Hitch Receiver, Brake Controller, And 7 Way Plug For 2016 Dodge Durango With Tow Package
    The Draw-Tite Class 3 Trailer Hitch Receiver - Max-Frame # 75713 is the correct hitch receiver for your 2016 Dodge Durango Citadel. This has the highest weigh capacity of the available receivers for your vehicle; it is rated at 900lbs max tongue weight and 6,000 lbs max towing weight, or 7,500lbs max towing weight when used with weight distribution hitch. Keep in mind that the hitch receivers for your vehicle only allow up to an 18" spare to be stored under the vehicle. For the trailer...
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  • Recommended Trailer Connector And Wiring Harness For 2014 Jeep Wrangler Unlimited With Tow Package
    For your 2014 Jeep Wrangler Unlimited with factory tow package, I recommend the Pollak 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket, Chrysler/Dodge OEM Plug Adapter # HM40975-11933. This kit gives you the wiring adapter you were asking for as well as the trailer connection with both 7-way and 4-way connections you were asking for. This is a confirmed fit for your vehicle with factory tow package.
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  • 4-Way to 7-Way Adapter Recommendation for a 2015 Equinox LTZ
    We have exactly what you would need. For an adapter that would convert your 4-way to a 7-way for just controlling the taillight functions of the trailer you would want the part # 37185. The current 4-way you have on your 2015 Chevy Equinox will plug right in to the 4-way of this adapter and it will be ready to go. This comes with a bracket that will allow it to easily be mounted to your bumper. Check out the install video I attached for more info as well.
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  • How To Install a 7-Way Trailer Connector On a 2004 Dodge Ram 1500
    Yes, it is very possible to install/fit a 7-way trailer connector on a 2004 Dodge Ram 1500. I first recommend looking under the vehicle for a square ten pin connector. This (if present) will be located behind the rear bumper near the spare tire and will match the end of the 7- and 4-Pole Trailer Connector Socket part # HM40975-11933 which is what I recommend using if this connector is present. If you don't have the above square ten pin connector then you will need to start with a 4-way,...
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  • Troubleshooting No Trailer Brake Lights When Connected to a 2015 Ram 2500
    You are definitely on the right track, but when I looked up the online owner's manual for your 2015 Ram 2500 the F11 cartridge fuse is actually for the trailer brakes themselves which is a different circuit than the brake lights. For the brake lights you need to look at fuses F53 and F81 which carry the left turn/stop and right turn/stop light circuits respectively. If those fuses look good as well then you need to test the 7-Way connector on your Ram or plug your trailer up to a different...
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  • Replacement 7-Way and 4-Way Socket for a 2011 Ford F-150
    Yes, you can use the socket, # HM40975, from the # HM40975-11933 kit as a replacement 7-way and 4-way trailer connector on your 2011 Ford F-150. The plug-in adapter that comes with this kit is only designed for Dodge and Chrysler vehicles, but you can use just the # HM40975 socket as long as your truck came with a factory 7-way trailer connector. I have attached a link to the socket that should save you some money from having to buy the kit that you referenced.
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  • Parts Needed for Trailer Brake Controller Installation in 2014 Jeep Wrangler with 4-Pole Harness
    To install a trailer brake controller like the Prodigy P3 # 90195 in your 2014 Jeep Wrangler that has a 4-pole trailer connector, you will use our # ETBC7 installation kit. This kit includes everything you need to install the controller, including a 7-way socket for the trailer plug like part # HM40975-11933. The linked video and article illustrate the installation process; the video shows a Jeep vehicle like yours.
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  • Adding a 7-Way Trailer Connector and Electric Brake Controller to 2011 Jeep Wrangler Unlimited
    Since your 2011 Jeep Wrangler Unlimited has the factory tow package there should be a square plug for the Pollak # HM40975-11933 to plug into. This will work well to supply a 7-way trailer connector. If you need to run wiring to install a brake controller use # 5506. If you don't have the square connector you'll first need to add a 4-way using # 118416 and then convert that 4-way to a 7-way using our # ETBC7 kit. This includes the 7-way and everything you need for an electric brake...
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  • Parts Needed To Haul 800 lb Motorcycle & Trailer With A 2014 Jeep Cherokee
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  • What is the Towing Capacity of a 2015 Jeep Cherokee with the 3.2L V6
    If you have the factory tow package on your 2015 Jeep Cherokee Limited then you should have a wiring plug present near your trailer hitch receiver, If you do have one and you aren't sure if it is aftermarket or not then you can simply check to see how it is installed. The Pollak # HM40975-11933 is a replacement wiring kit for the tow package so you will see a square connector near the trailer hitch. Otherwise the wiring will lead up to your tail lights like the Curt T-Connector # C56208. According...
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  • Replacement 7-Way Connector For 2011 Jeep Liberty
    I do have an option for your 2011 Jeep Liberty with factory tow package but the Hopkins 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket part # HM40975-11933 is not a fit. Instead I recommend Reese Multi-Plug Wiring Harness for Factory Tow Package part # 74682 which is going to plug right into the round factory connector usually located right inside the frame rail at the rear of the Liberty.
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  • Will Hopkins HM50002 Smart Hitch Backup Camera Plug and Play Install on 2007 Dodge Ram
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  • Troubleshooting Running Lamps and Brake Controller Output on Trailer Towed By 2014 Ram 1500
    According to the owner's manual, the fuses in F11, F29 and F30 are the ones you'll want to check. If the fuses were okay, then the most likely culprit is the trailer connector at the rear bumper of the truck. You should be able to remove the manufacturer harness from the rear of the trailer connector by sliding the gray locking tab and pulling firmly on the plug. Then, as a helper activates the running lights on the truck, take a circuit tester like # PTW2993 and probe each contact on...
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Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
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Mike L
Employee Robert G
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Robert G
Employee Michael H
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Michael H
Employee Jameson C
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Jameson C
Employee John H
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John H
Employee Adam R
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Adam R
Employee Jeffrey L
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Jeffrey L
Employee Andrew K
Installed by:
Andrew K
Employee Jeff D
Installed by:
Jeff D
Employee Tyler C
Written by:
Tyler C
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Jonathan Y
Video by:
Jonathan Y

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