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Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End
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Pollak

Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End

Part Number: PK11410
52 Reviews | 35 Questions
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$11.36
Retail:$19.50
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 Custom Fit Vehicle Wiring
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pollak custom fit vehicle wiring 4 round heavy-duty 4-pole pin socket concealed terminals - chrome end
pollak custom fit vehicle wiring end connector 4 round
pollak custom fit vehicle wiring end connector 4 round pk11410
pollak custom fit vehicle wiring trailer hitch 4 round heavy-duty 4-pole pin socket concealed terminals - chrome end

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2007 jeep liberty custom fit vehicle wiring pollak end connector 4 round on a
2007 jeep liberty custom fit vehicle wiring pollak trailer hitch 4 round heavy-duty 4-pole pin socket concealed terminals - chrome end
2007 jeep liberty custom fit vehicle wiring pollak end connector 4 round pk11410
2007 jeep liberty custom fit vehicle wiring pollak trailer hitch 4 round pk11410

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Establish a secure connection between your trailer and your towing vehicle with this 4-pole, round pin, wire-insertion-style socket. Chrome-plated socket has concealed terminals to provide easy assembly and durability. 1-800-940-8924 to order Pollak custom fit vehicle wiring part number PK11410 or order online at etrailer.com. Free expert support on all Pollak products. Great prices and Fastest Shipping for Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End. Custom Fit Vehicle Wiring reviews from real customers.
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Pollak Custom Fit Vehicle Wiring - PK11410

Highlights

  • Clean, Protected Connection: Chrome socket with spring cover keeps wiring clean and sealed.
  • Simple Light Setup: 4-round plug handles turn, brake, tail, and ground circuits.
  • Reliable Towed-Vehicle Link: Heavy-duty build ensures solid contact for lighting signals.
  • Custom Wire Matching: Terminals can be wired to match any 4-round trailer function layout.
  • Tidy Front-End Look: Concealed terminals give a finished appearance on the vehicle.

Features to know about

Clean, Protected Wiring Connection: Chrome 4-Pole Round Socket

Towing setups take a beating from weather and road debris, but this Pollak Heavy-Duty 4-Pole Round Pin Socket keeps the wiring connection clean and secure. The concealed terminals stay protected inside the chrome housing, and the spring-loaded cover seals out dirt and moisture when it’s not in use. It gives the front of your setup a finished, professional look while keeping the contacts working smoothly trip after trip.

Simple Wiring Match-Up: Clear Pin Functions for Each Signal

Getting the signals right is easy once you know how the pins are laid out. When looking into the connector with the cover raised, the top left pin is for left turn/brake (yellow), the top right is for right turn/brake (green), the bottom left is ground (white), and the bottom right is for taillights (brown). Just match these functions to your trailer wiring using a circuit tester so each light does exactly what it should.

Reliable Fit for Heavy-Duty Towing: Solid Round-Pin Terminals

Each of the four heavy-duty round pins provides a strong, positive connection that won’t loosen or corrode easily. The metal contacts are built to handle frequent hookups and hold tight under vibration and movement. It’s a solid choice for anyone wanting dependable lighting signals between vehicle and trailer.

Easy Integration with Existing Wiring: Works Across 4-Way Setups

Whether you’re wiring to a 4-way flat lead or pairing with an adapter or coiled cord setup, this socket gives you flexibility. It works seamlessly with other 4-way round accessories and adapters, letting you tie your system together without replacing existing parts. Once wired in, it’s ready to plug, protect, and go.

Specs

Material and Construction

  • Material: Chrome
  • Terminals: Concealed
  • Style: Heavy-Duty

Electrical and Connection

  • Connector Type: 4-Pole Round Pin Socket
  • Vehicle End: Yes
  • Mounting Hole Spacing: 1-3/4" on center

11-410 Pollak Heavy-Duty, 4-Way, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End
Replaces 30101







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Ratings & Reviews

4.5

52 reviews
5 Stars
(39)
4 Stars
(6)
3 Stars
(3)
2 Stars
(1)
1 Star
(3)
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by:
Wiring harness and flat tow bracket to be able to tow our new Wrangler behind our motorhome. Product arrived on time and everyone was most pleasent to deal with. had the bracket installed by the dealre we bought the Wrangler from as part of that deal and then did the wiring ourselves. Pretty weasy thanks to the excellent video provided by etrailer and it took us rookies about 3 hours to complete. we are very happy with the service and product. Thanks to all. Regards,
Tom W. profile picture

Tom W.

2/13/2016

Very well

by:
Product arrived on time and as described. I used this for setting up our 2014 Wrangler Unlimited Sahara for a flat tow. Mounting hole spacing @ 2" o/c didn't match our Blue Ox 1126 draw bar so I fabricated my own intermediate bracket, polished it to aircraft tooling standards, then lacquered it before final assembly. I think the finished product came out nice.
Bill K. profile picture

Bill K.

7/9/2016

Just over one year and its still working out great! Ive fabricated several intermediate brackets much like my own for neighbors.

by:
Installed this product since I was converting a car from dolly towing to flat towing and needed this connector to interface with existing harness installed on tow bars. Impressive quality!
by:
Everything was great. I'm going to use this for a remote winch control. I recommend this site to everyone. Thanks
Wolfe A. profile picture

Wolfe A.

10/2/2015

What sort of controller are you attaching it to? I need to find a new controller and trying to find one that I can attach this to.

by:
The socket assembly is good quality overall. However, the screws provided to secure the wires would shear off the wire, all but a couple strands. My remedy was to heavily tin the wire ends and use moderate force on the screws. All is well.
by:
Just what I ordered and expected. My former, local source discontinued carrying the outlet which I needed for my vehicles to connect to the lighting on my trailers. Was good to find a new, reasonably priced source so I did not have to change the wiring on all my older vehicles and trailers.
by:
Do you guys carry a great inventory of trailer accessories and parts do a great job getting them shipped out to us Thanks for all the good work happy memorial day to you
by:
I was disappointed when I opened the package. The connections are to be used together. These connections can never be used as 1 unit on a trailer and Vehicle. The pin , and Holes on the female, and male plugs are different.
by:
Product was good quality. Some of these receptacles from other suppliers are made of plastic. You don't find out until you get it home and open the package. I wasn't sure what I was going to get.....but was happy that it is metal and not plastic. I should have known that Etrailer would sell a quality product and not try to pass off junk like some of the others.
My advise: always buy trailer parts from Etrailer. Don't take chances with someone else.
by:
I am ‘five star satisfied’ with the products and service I have received from etrailer.
Parts are high quality, unlike merchandise I I’ve purchased elsewhere.
The customer service is high quality, again unlike others I’ve dealt with. Specifically, I have dealt with Danielle twice and she was fantastic. Pleasant, courteous, knowledgeable and professional. etrailer is lucky to have her on their team.
by:
Well made and sturdy construction. It would have helped if the mounting hole spacing was listed in the specs so I could have pre-drilled the panel on my trailer.
by:
bracket delivered very quickly and is exactly what I needed.

Have bought from etrailer.com in the past and always been well satisfied with their products and service.
by:
Using this 4 way connector as a 2 way to add 12 volt power to my tow vehicle from my RV.
by:
This connector worked perfectly on my trailer. Very happy I found e-trailer and that they carried this hard to find product.
by:
Connector worked great on my boat trailer.
by:
Works very well. Exterior is rusting though.
by:
customer service was exceptional!
by:
Working great
by:
Works just as it should! Durable!
Robertbenita profile picture

Robertbenita

6/30/2014

This item continues to work just as it should with no need for adjustment! Very pleased!

by:
Items were simply “thrown in the box” WITH the hitch which was not secured properly. Heavy hitch then bounced around on electrical connectors, destroying them. Components should have been fastened to the hitch as the hardware kit was with strong tape instead of just thrown into the box by somebody! Refund issued.
by:

Very satisfied. Would not hesitate to order from you folks again. Thanx...
by:
Would have been nice to get this product in Black Chrome to match my bumper
by:
As I said on all the other parts, I like the selection, pricing but mostly the help I get online and face-to-face.
by:
Same as the review for the female end. Well made and just what I needed. Outstanding product.
by:
Great company
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See what our Experts say about this Pollak Custom Fit Vehicle Wiring

Do you have a question about this Custom Fit Vehicle Wiring?
  • 7 Wire to 4 Wire Round Adapter Needed
    I have attached a picture for you. If you need connectors like those in the picture then you can use the Hopkins Endurance Flex-Coil Trailer Connector Adapter with Nite-Glow, # HM47043. This adapter is designed for use when flat towing, 7-wire blade-style vehicle end connector and 4-wire round towed vehicle connector. If you have a different style of connector, please send me a picture and I will be happy to find a product that will work for you.
    view full answer...
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  • Distance Between Mounting Holes on the Pollak 4-Way Round Connector
    I grabbed a Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404, from our warehouse to measure and found the distance between the mounting holes on center is 1-3/4 inches. If you check out the picture I attached you will see that you would have to come up with a shackle type adapter to allow this connector to be used on your base plate.
    view full answer...
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  • How to Wire 4-Way Round Pin Trailer Wiring Connector PK11409
    There is not an industry standard layout for wiring the 4-Way round pin connector, but there is a layout that is most accepted. If you you are looking at the front side of the 4-Way round trailer side plug, the top left prong would be used for right hand turn signal and brake function, the top right pin would be the left side turn signal and brake light function, while the bottom left would be used for the tail light function. The last pin, on the bottom right would be used for the...
    view full answer...
    Image 1 for
  • Installing 4-way Round Connector on Tow Vehicle
    If the 4-way on your RV is a round socket, you will need to wire the Roadmaster 4-Wire Straight Cord Kit # RM-98164 to match the wiring on your RV function for function. Since RVs do not commonly come with 4-way round connectors, it is hard to say how the 4-way is wired. You can use a circuit tester like # PTW2993 to test for the wire's functions. If the 4-way on the RV is not round, I recommend using the Hopkins Endurance Flex-Coil Trailer Connector Adapter # HM47043. This wiring extension...
    view full answer...
  • Mounting Bracket Options For 4-Way Trailer Connectors
    We do offer a couple of mounting solutions for 4-way flat connectors, but the style differs from the Draw-Tite Bracket, part # 18159. You can check out the part # HM48595. This is a fold-over box to protect your 4-way flat connector. I have attached links to our product pages that list the mounting brackets we have for 4-way round and 4-way flat trailer connectors.
    view full answer...
  • Installing Trailer Wiring Harness for a 1998 Ford Windstar
    The wiring harness for your 1998 Ford Windstar is a plug and play harness, part # C55346. It plugs into your tail light assemblies. I have also included a link to the instructions for installing it on your vehicle. The 4 pole round connector you were looking at, part # PK11409, can be used instead of the standard flat connectors. The part you were looking at was the trailer end connector. The vehicle end is part # PK11410. You would cut off the flat connector of the wiring harness mentioned...
    view full answer...
  • Missing Connectors for Blue Ox 7-Wire to 4-Wire Coiled Electrical Cord # BX88254
    I'm going to assume that you have a Blue Ox coiled electrical cord, like part # BX88254, which has a 7-way for your motorhome. To replace the connector on the front of the towed vehicle you can use part # PK11410, and for the connectors on the cord, # PK11409 for 4-way and # PK12706 for 7-way. I have included a picture for you which shows each style of connector and part number.
    view full answer...
    Image 1 for
  • How to Wire a 4-Way Round Trailer Wiring Connector
    There is no standard for wiring the 4-way round connector so you will have to use a circuit tester, part # PTW2993 if you need one, to test the wires and wire the connector according to the wiring of your existing connector. I have posted links to the parts mentioned above and our wiring help page below.
    view full answer...
  • Diagram for 7-Way and 4-Way Trailer Wiring Connectors
    There is not an industry standard layout for wiring the 4-Way round pin connector, but there is a layout that is most accepted. If you you are looking at the front side of the 4-Way round trailer side plug, the top left prong would be used for right hand turn signal and brake function, the top right pin would be the left side turn signal and brake light function, while the bottom left would be used for the tail light function. The last pin, on the bottom right would be used for the ground...
    view full answer...
    Image 1 for Image 2 for
  • Tow Bar Wiring to Flat Tow a 2008 Honda Element Behind a Motor Home
    We actually don't carry any flat tow wiring for your 2008 Honda Element that plugs directly into the vehicle's wiring. We used to but it's been discontinued. What is in the instructions for the base plates is just the connector that would be at the front of the vehicle and for that you can use # DM9523004. You would need to cut off the 4-Way end from kit # TM783101 and attach the wires to the back of one of the connectors in this kit. White is ground, brown is running lights, yellow is...
    view full answer...
  • What Is the Size of the Socket On the Hopkins Heavy-Duty Trailer Coiled Extension HM47045
    The Hopkins Heavy-Duty Trailer Coiled Extension part # HM47045 has two standard 4-round trailer connector sockets on each end which are both 13/16" diameter. This is more than likely what you have now as I am not aware of there being multiple different diameters for a standard 4-round trailer connector socket. That said, I can confirm for a fact the Pollak Heavy-Duty 4-Pole Round Pin Socket part # PK11410 will fit this extension harness.
    view full answer...
    Image 1 for
  • How to Make a 6-Way Round to 4-Way Round Trailer Connector Adapter
    There isn't a 6-Way round to 4-Way round adapter that we carry but we have the parts to make one. First, a 6-Way is not very common, make sure it is a 6-Way, like # PK11609, and not a 7-Way blade style like # PK11893. If it is a 6-Way round then to make an adapter you would first need a 6-Way round trailer side connector, # PK11604. Then you would need a 4-Way round vehicle end connector, # PK11410. Then all you would need is about 1 foot of bonded 4-wire, # 16-4B-1. You would just need...
    view full answer...
  • Recommended 4-Way Connection Between Towed Vehicle and Motorhome
    The only real advantage of the 4 round over the 4 flat trailer connector is the clean look of the connection point and the protection from elements when not in use. For instance the Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End # PK11410 has a clean finished look on the front of a towed vehicle and will protect the connection from dirt and debris with the spring loaded cover. Many people like the connection between the motorhome using a harness...
    view full answer...
  • Diameter of Pollak Heavy-Duty 4-Pole Round Pin Trailer Wiring Connector Part # PK11409
    The Pollak Heavy-Duty 4-Pole Round Pin Trailer Wiring Connector part # PK11409 is 13/16" diameter on the end where it would plug into the vehicle side connector. If I were you, I would order both this and the Pollak Heavy-Duty 4-Pole Round Pin Socket part # PK11410 to make sure I have an exact match as these two connectors are designed for one another. If the trailer side connector that you have works with the above which it should as they have the same 13/16" diameter then you can return...
    view full answer...
  • 4-Way Flat Male to 4-Way Round Female Adapter Recommendation
    We do not have an adapter in that exact configuration for you, but we do have the parts to make your own adapter. You could use the Pollack # PK11410 and the Hopkins Endurance 4-way Flat Trailer connector # HM48110. You would just wire the Hopkins 4-way flat to the Pollack 4-way round connection point.
    view full answer...
  • Pin Locations On 4-Way Round and Flat Connectors
    I have included a picture below that will tell you which wire goes where on a 4-Pin Round Vehicle Connector # PK11410. This will allow you to see what each pin is for the 4-Way Flat to Round Adapter # ADP001 that you already have.
    view full answer...
    Image 1 for Image 2 for
  • What Style 4-Way Round Socket Does the Custer Trailer Connector Adapter # ADP001 Fit
    The Custer Trailer Connector Adapter # ADP001 that you referenced is designed to fit 4-way round receptacles like the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket # PK11404.
    view full answer...
  • Recommended Base Plates and Flat Towing Equipment for 2005 Honda Pilot
    What it simply means is that some of the base plate kits will fit your 2005 Honda Pilot if it has a brushguard and others won't. Personally I recommend the Demco kit, # DM9517143, because it works with whether you have the brushguard or not. I also like the Demco kits because they pair with the Demco tow bars that have independent arms, include safety cables, and are made in the USA. The Commander II, # DM9511012, would work perfectly for you. For a lighting solution, I recommend the...
    view full answer...
  • Trailer Connector for 2012 Jeep Wrangler Unlimited with 4-pole round Trailer Connector
    I'd begin by installing the Tow Ready T-One Vehicle Wiring Harness, part # 118416. From that point, you can construct an adapter using the following parts: Pollak Vehicle Side 4-Pole Round Trailer Connectors, # PK11410 4-Pole Flat Trailer End, # 18004 4-Pole Trailer Connector Mounting Bracket # HM48605 Or, you could simply cut off the 4-pole flat plug of the # 118416 and use the # PK11410 and the # HM48605 bracket. However, this option wouldn't let you tow a trailer with a normal 4-pole...
    view full answer...
  • Availability of 6-Way Round to 4-Way Round
    There isn't a 6-Way round to 4-Way round adapter that we carry but we have the parts to make one. First you'll need the correct 6-way with part # PK11604. Then you would need a 4-Way round vehicle end connector, # PK11410. Then all you would need is about 1 foot of bonded 4-wire, # 16-4B-1. You would just need to insert the wires into the back of each connector according to how the vehicle side 6-Way is wired and for what your trailer requires (since there isn't a standard for a 4-Way...
    view full answer...
  • Is the 4-way flat to 4-way Round # 47465 Compatible with with 4-Pole # PK11404 and # PK11410
    I went and pulled the Adapter part # 47465, Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket # PK11404 and Pollak Heavy-Duty, 4-Pole, Round Pin Socket # PK11410 to see if they were all compatible and I found that they were. The round 4-way of the # 47465 is compatible with both the # PK11404 and the # PK11410. Check out the video I attached where I show this.
    view full answer...
  • Flat Towing Wiring Kit for a 2018 Jeep JL Wrangler Unlimited
    The Tekonsha T-One # 118786 that you referenced is for activating the light functions on a trailer when towing with your 2018 Jeep JL Wrangler Unlimited. It sounds like you are needing some wiring to flat tow your Jeep and for that you need some different parts. If you use the Hy-Power Diode Wiring Kit # RM-152 along with the Hopkins Mounting Bracket # HM48605 and the Pollak Heavy-Duty, 4-Pole, Round Pin Socket # PK11410 then you will essentially have the Flexo-Coil Wiring Kit # RM-15267...
    view full answer...
  • 4-Way Round Chrome Car End for a 2003 Jeep Wrangler To Tow Behind Motor Home
    To install towing lights on your 2003 Jeep Wrangler you have two options. One way is to use a taillight isolating diode system, RM-154, to wire the motor home lighting system into the cars with diodes protecting both from damage. The second is to use a separate set of bulbs in the rear taillights, RM-155, that are run only from the motor home and do not interact with the vehicle wiring. This option requires enough space in the towed vehicles taillights to mount the extra bulb, but it eliminates...
    view full answer...
  • Replacement 7-Way Recommendation for Trailer with 2 Round 4-Ways
    It's highly unusual for a trailer like yours to have two round 4-ways like what is in the picture you sent in. It's possible they would match the # PK11410 which is a female 4-way socket but I'd have no way of knowing how yours are wired since they are not standard. Best option I would have would be for you to cut off the 4-ways and wire them to a 7-way plug like part # H20043. To identify the wires of the connector you'd need to use a 12 volt jumper wire from a vehicle battery's positive...
    view full answer...
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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Robert G
Expert Research:
Robert G
Employee Patrick B
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Patrick B
Employee Jeff D
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Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Mike H
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Employee Dustin K
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Employee Sue W
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Employee Nicholas E
Test Fit:
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Employee Adele M
Updated by:
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Employee Wilson B
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Employee Cole B
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