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Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals - Chrome - Vehicle End

Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals - Chrome - Vehicle End

Item # PK11502
Our Price: $8.94
You Save: 66%
Trailer Wiring
Shipping Weight: 0.23 lbs
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Establish a secure connection between your trailer and your towing vehicle with this 5-pole, round pin, wire-insertion-style socket. Chrome-plated socket has concealed terminals to provide easy assembly and durability. Great Prices for the best trailer wiring from Pollak. Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals - Chrome - Vehicle End part number PK11502 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (99)
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Pollak Trailer Wiring - PK11502

  • Trailer Connectors
  • Vehicle End Connector
  • 5 Round
  • Plug Only
  • Pollak

Establish a secure connection between your trailer and your towing vehicle with this 5-pole, round pin, wire-insertion-style socket. Chrome-plated socket has concealed terminals to provide easy assembly and durability.


  • Chrome-plated, zinc die-cast, 5-pole socket connects trailer to towing vehicle
  • Round, split brass pins
    • Minimum voltage drop is ensured
    • Dielectric (non-conducting) grease coating
      • Protects against corrosion and resistance
    • Maximum current capacity provided
  • Concealed terminals for durability
    • Provide easy assembly
  • Spring-loaded lid
    • Keeps dust and moisture out of interior
  • 2-Hole mounting style


  • Volt rating: 12 volts - 24 volts
  • Current rating: 15 amps
  • Mounting screw holes: 1-3/4"
  • Wiring configuration:
    • Color - circuit:
      • White - Ground Return
      • Green - Right Turn and Brake Lights
      • Yellow - Left Turn and Brake Lights
      • Red - Auxiliary Circuit
      • Brown - Tail Lights
  • Recommended wire gauge: 14 to 16 gauge
  • 1-Year limited warranty

11-502P Pollak 5-Way, Round Pin Trailer Wiring Socket, Concealed Terminals - Chrome - Vehicle End

Replaces 11-502

Customer Satisfaction Score:

Customer Reviews

Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals - Chrome - Vehicle End - PK11502

Average Customer Rating:  4.7 out of 5 stars   (99 Customer Reviews)

Establish a secure connection between your trailer and your towing vehicle with this 5-pole, round pin, wire-insertion-style socket. Chrome-plated socket has concealed terminals to provide easy assembly and durability.


I purchased the male 5 pin connector on my pull behind motorcycle trailer and the female on my 2008 Harley Davidson. They were the perfect purchase for my application.
Thank you.


Nice product. Proper di-cast with chrome finish...not the cheapy plastic one this replaced. I prefer this to the flat-4 plug, because the flat-4 can't really be secured the the vehicle, and most of the time thay are run out the truck over the bumper. I didn't want to risk scuffing the painted bumper cover, plus I have a 3rd brake light on my trailer, which requires a dedicated brake light wire. I installed this on a 2006 WRX and a 1990 Mustang (1 trailer, 2 cars that tow it)


Professional, timely, and reasonable pricing. Would not hesitate to deal with them again.


The pins were too big by a little bit. Had to force the female plug into the socket


I purchased both pieces and got the fifth that I was looking for for my motorcycle. I would recommend this for anyone wanting to wire the motorcycle to pull a trailer.


This item is very high quality and protects against weather conditions when not in use. When the female mate is connected, the protective cover on this unit provides a catch to prevent the connection from separating. This item will mount on the rear of my 2010 Honda Goldwing and provide an electrical interface from my Goldwing to my Bushtec trailer for running, brake, & turn lights, to include interior trailer lights. Keep up the good work etrailer!!

Marquis R.


Much better than expected as the finish on the connector is completely free of rust, discoloration, or other imperfections associated with open road use items.. Of course the connector is mounted is a area that is subjected to water, rocks, dust and dirt, however I have not had any problems visually or electrically since installation. Mating of the connectors are still snug with perfectly clean electrical contacts.


The trailer connector socket was exactly as described. It worked well. I had to buy some brackets from etrailer to mount it to my Tri-Glide. Those worked well also.



Did the receptacle have a mounting bracket?

Etrailer Expert

Patrick B.


The receptacle and mounting bracket are a one-piece unit. The two holes on either side of the socket door can be used with bolts or self-tapping screws to secure the socket to the vehicle. If you need to mount it a bit differently you can purchase different bracket separately like part HM48605.

Bob L.


After a year the socket is still working great. It is nice and tight, no fear of it coming lose. Great product.


I've had the receptacle and plug version of this installed between a homemade truckbed trailer and my older toyota truck for several years and it works great, good connection, and easy to install. I went with the 5 conductors as all I needed were left/right signals, brake and running lights. I drive offroad a lot with the trailer without problems. I just received my second order, for an additional trailer, and the plug is really tight, thanks to the conductors being slightly too spread. I'll have to pinch the pins a bit to loosen the fit - easy enough. Otherwise it'd be 5 stars!


This product is not in use at this time. It is a different approach to a rollback wrecker issue with marker lights down the side of the rollback. Original set up was to run 11000 miles of wire so that the rollback could rollback without connecting and disconnecting a plug...The issue was the wire broke down because of all the movement then causing lighting problems ALL the time. Removing all that wire and making only one simple connection eliminated the wire and movement. So the only repair that may be needed is readily accessible. The action needed then was to disconnect the connection before rolling the wrecker back and to.


Excellent product. I had difficulty finding a 5 pin connector locally. When I found this product on the internet I ordered it immediately and am delighted with it. I can't believe how inexpensive it is. Could have paid 10 times as much for a competitor's model but this one works just dandy for me. Even if I had to replace it every year, which I know I won't have to do, I would still be way ahead. The service provided by etrailer was exceptional. These guys are at the top of my list for future orders!



I ordered it it came in a timely manner and the price was right thank you


Male and female plug-in works great


Exactly what I needed and arrived in a couple of days.


Appears to be very well constructed. Only thing that I think could be improved is that it doesn't have a waterproof cover on it. That is easy enough to remedy though by simply using some terminal grease on the contacts to protect them from the weather. I am not mounting this on a vehicle myself, I am building a box for testing trailer wiring and lights. I am trying to include as many of the different types of trailer connectors that are commonly seen on trailers in my area.


Product came quickly and in good order. It was for the most part what I expected. the old one, however, had a plastic inner seal to protect the wires from touching the inside of the product. This one did not . It would be an improvement to have this feature. Total install not yet complete. Will see how it all works when it is all wired up.

Mike M.


Got it working fine but have not used it for trips yet. Still have to test it on a trip


I recently purchased a compact trailer to tow behind my touring motorcyle. I also wanted to be able to tow it behind my car. This 5 pin connector will allow me to do that. It is of good quality and was delivered quickly. It is a specialty item that I could not find locally. I would definitely purchase from etrailer again.


Exactly the connector I was looking for. Ordering was simple and quick. Price was great also very nice that I didnt have to order 10 or more of them. Thanx


I am impressed with this company. When I placed my order I had instant communication until it was delivered which was quick too I might add. I just installed this in place of the 5 pin flat hookup I had for my boat trailer and I am very satisfied. I got tired of having to tie the connectors together and worry about them every trip I took. Thanks for good service and good products


PK11502 matched up perfectly with the other half of the 5 pin connection on the trailer. I used a shrink sleeve and some weatherproof silicone tape to make the connection weatherproof.


Fast and easy


Quality made product that was easy to add to my motorcycle wiring. Works very well with the mating plug on my trailer. Very happy with price, delivery time, and simplicity.


ETrailer had the parts I couldn't locate, anywhere else, at a fair price. Shipping was reasonable and not another profit item as other companies. Shipment was received in two days. Last used for a trailer hitch for my GMC. Always a great company to do business with. Of course I recommend them for all your towing and truck needs.


I like the look, and really easy to install, just make sure you do not strip much off the wire so you can put it through the hole under the screw, so as to not have any extra wire sticking out because they are really close.


Worked great for the application for my cycle trailer.
Order and shipping was easy and timely.


Plug appears to be a high quality unit. I am installing it on my BMW R1200RT Motorcycle so I can tow a camper trailer.

Show More Reviews

See what our Experts say about this Pollak Trailer Wiring

  • Installation of Pollak 5-Pole Vehicle End Wiring Socket
    In the Pollak Wiring Socket # PK11502 the wires are inserted into the sides of the posts and there is a screw on the end. See the picture I've attached.
    view full answer...
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  • 5-Way Round Pin Trailer and Vehicle Side Connectors
    The mating 5-Way vehicle end for # PK11501 is # PK11502.
    view full answer...
  • How Do You Take Apart Pollak 5-Way Round Trailer Connectors to Attach Wires
    To take apart the Pollak 5-Pole vehicle side connector # PK11502 or its matching trailer side connector, # PK11501, you would remove the set screw and then the pin portion will either fall out or you will need to push it out from the back of the connector using a screwdriver.
    view full answer...
  • 4-Square to 5-Round Trailer Connector
    There is not an adapter so you'd need to make your own for your trailer with a 5-round connector like # PK11501. What you'd need to do is cut off the end of your 4-way and connect the wires to the terminals of the 5-Pole, Round Pin Trailer Wiring Socket - Vehicle End # PK11502.
    view full answer...
  • 5 pole Round 5 Pin Vehicle and Trailer Connectors.
    I can recommend both trailer and vehicle connectors for you. The trailer connector is item # PK11501 this is a Pollak 5-Pole, chrome connector. The vehicle connector is item # PK11502 this is also Pollak 5-Pole. It has a chrome-plated socket has concealed terminals to provide easy assembly and durability. I have linked videos for both.
    view full answer...
  • When Wiring a Motorcycle 5 Pin Round Trailer Plug What is the Standard Wiring Diagram
    The Pollak 5-Pole, Round Pin Trailer Wiring Sockets, item # PK11502, and # PK11501, do not have a standardized wiring configuration. I normally direct my customers to the 6-way wiring configuration, eliminating the middle pin. Start by wiring the top most connector inside the vehicle end # PK11502, as with the taillight circuit (12 o-clock). Then looking inside the connector, where the wires are attached, going clockwise the next terminal (1 o-clock) position can be wired as brake output,...
    view full answer...
  • 5-Way Round Vehicle and Trailer Side Connectors for Use with a Motorcycle
    Motorcycles have unique trailer connectors that are a little different than what is on other vehicles. You could wire in connector # PK11502 and it will likely be a match to what is on your trailer. Or you could also get the matching trailer side connector, # PK11501, so that the bike side and trailer side are for sure compatible. I have linked videos for both parts for you.
    view full answer...
  • Outside Diameter of Pollak 5-Pole, Round Pin Trailer Wiring Connector
    The outside diameter of the Pollak 5-pole Round Trailer Connector, part # PK11501 measures .80 inches. That is just a little under 13/16 of an inch. This is the trailer side connector. The matching vehicle side connector is # PK11502. The part of it that would fit into the hole is 0.974 inches.
    view full answer...
  • Pollak 5-Pole PK11501 Outside Diameter
    The .80 inches measurement was via digital caliper, but the Pollak 5-Pole, Round Pin Trailer Wiring Connector - Chrome - Trailer End # PK11501 is 13/16 inches for a more traditional measurement. If you also need the vehicle side that is the Pollak 5-Pole # PK11502.
    view full answer...
  • What is the Diameter of a 5-Pole Trailer Connector
    The outer diameter of the Pollak 5-Pole, Round Pin Trailer Wiring Connector # PK11501 is right about 3/4" which you can see in the attached photo. This is the standard size for a 5-pole connector so odds are what you have will work just fine. If you're needing the socket end of this as well then part # PK11502 is the matching chrome piece. Attached are review videos for you to check out.
    view full answer...
    Image 1 for
  • How To Determine Fit of Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals
    The Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals part # PK11502 uses a standard five pin layout. I don't have the diameter of the pins but it will work with pretty much any five round trailer connector like the Pollak 5-Pole, Round Pin Trailer Wiring Connector part # PK11501. This setup is commonly used on motorcycles and motorcycle trailers. If I had to guess, I would say 1/8" should be fairly accurate. If you are trying to instead determine wire gauge size, the...
    view full answer...
  • 5-Way Round Vehicle Connector To Tow Trailer WIth 5-Way Round
    I do have an option for you but it is not a wiring harness for the truck. I recommend to wire in the Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals part # PK11502 at the rear of the truck which will give you a plug to plug in the 5-way round on your trailer. This is recommend to be used with 15-16 gauge wire and I attached the wiring configuration below: White - Ground Return Green - Right Turn and Brake Lights Yellow - Left Turn and Brake Lights Red - Auxiliary Circuit Brown...
    view full answer...
  • Recommended Mounting Bracket To Mount 5-Pole Round Connector Under Hitch Ball
    We have exactly the mount you are looking for. To mount the Pollak 5-Pole, Round Pin Trailer Wiring Socket, Concealed Terminals # PK11502 you were looking at under the hitch ball you will need the Pollak Connector Bracket for 4-, 5- and 6-Pole Trailer Connector Sockets # PK11627. I included videos for each of the products mentioned for you to take a look at.
    view full answer...
  • Parts Needed to Make a 6-Way Square to 5-Way Round Adapter
    What you would need to make the adapter you are looking for is the part # 37995 for the 6 pole square side and the part # PK11502 or part # PK11501 depending on which style 5-way you need.
    view full answer...
  • Parts Needed to Connect a 5-Pole, Round Connector to a 4-Way Flat Connection
    You could put together an adapter using part # PK11501 and part # 18172 for the 5 pin round/4-Way Flat connection that you need. For the 2 female - 5 pin round connectors, you'll need part # PK11502 This 5-pole socket will connect your trailer to tow vehicle. The female/male terminology can be a bit confusing because of the pins in this connector. Part # PK11502 is actually an industry standard female connector because part # PK11501 plugs into it. I have also attached a link with...
    view full answer...
  • How to Tow a Trailer with 5-Round Trailer Connector Using a Vehicle with 6-Round Trailer Connector
    I guess my first question would be if you would like to convert the 6-round trailer connector on the vehicle to match the 5-round trailer connector on the trailer or convert the 5-round trailer connector on trailer to match the 6-round trailer connector on the vehicle. We have options for both ways which I have attached for you below. In order to change out the 6-round vehicle side trailer connector you are going to need to use the Pollak 5-Pole, Round Pin Trailer Wiring Socket part #...
    view full answer...
  • Replacement 5-Way Recommendation for Trailer to Match 5-Way of Motorcycle
    You will have to cut off the 5 round on your trailer and wire a 5-flat to it instead so that it will match your motorcycle. For that you would need the part # HM47910.
    view full answer...
  • Recommended Mounting Bracket For Pollak 5-Pole, Round Pin Trailer Wiring Socket # PK11502
    I recommend the Hopkins Mounting Bracket # HM48605 for securing the Pollak 5-Pole, Round Pin Trailer Wiring Socket # PK11502. The Hopkins bracket has a slit in the bottom which allows you to easily attach and remove the connector without having to remove all the wiring from the connector.
    view full answer...
  • Making 4-Way to 5-Way Round Adapter
    We do not carry that specific adapter, but we do carry the parts you need to make one. You can use the Pollak 5-Pole, Round Pin Trailer Wiring Connector - Chrome - Trailer End # PK11502 along with the Hopkins Endurance 4-Way Flat Trailer Connector Socket - Trailer End # HM48030.
    view full answer...
  • Motorcycle has 4-Way Flat and Trailer has 5-Way Round Connectors
    If that is the only trailer that you plan on towing with your motorcycle then I recommend simply replacing your 4-Way Flat with the Pollak # PK11502. Simply cut the 4-Way off and connect the wires so that they match up functions with your trailer. I believe that your 5-Way on your trailer has the turn and stop signals separated. If this is the case then you would need to install the Curt # C56196 before the 5-Way Round connector to match up the functions.
    view full answer...
  • Converter for Wiring Motorcycle 5-Way to Trailer
    Since you have a motorcycle it almost certainly has separate tail lights (your brake lights are on separate bulbs as your turn signals). so even though you have connected the 5-Pole # PK11502 (motorcycle end) and 5-Pole # PK11501 (trailer end) you will also need the Wiring Converter # RM-732. This will convert the separate style of wiring your motorcycle has to the combined style of wiring on your trailer.
    view full answer...
  • Solution for Trailer with 5-Way that Does not Match Pollak 5-Way PK11502
    There are 5-way rounds like the part # PK11502 and there are 5-way flats like the # HM47900. I am not sure which you have tried but it sounds like your motorcycle uses a unique style of connector. Which if you have the # PK11502 already you could just replace what's on the trailer with the part # PK11501 and be set.
    view full answer...
  • Parts Needed to Convert 5-Way of Motorcycle to Standard Trailer Wiring 4-Way
    The reason your motorcycle has a 5-pin connector and not a 4-pin is because the motorcycle trailer wiring setups have the stop lights separate from the turn signals which is different from standard trailer wiring. So you can definitely replace the 5-pin with a 4-way but you will need to use a kit that has a converter integrated into it that can combine those taillight circuits. For that you could use the part # C56190KIT. You'd just need to run your existing trailer wiring to the input...
    view full answer...
  • How to Tow a Trailer with a 5-Way Round Connector with a Bike With a 4-Way Flat
    Why is an interesting question for your situation. But most likely I would say the reason would be so that you could tow the trailer with your motorcycle? Since 4-way flat connectors are much more popular than 5-way rounds I would recommend you remove the 5-way and install a 4-way flat to match the one on your bike. For a 4-way you would want the part # 18004. Now since most likely your trailer has separate turn signals from the brake light you will need to use a taillight converter as...
    view full answer...
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Info for this part was:

Employee Mike L
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Mike L
Employee Robert G
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Employee John H
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Employee Tyler C
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Employee Cole B
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Employee Hannah L
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Hannah L

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