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Pollak 10-Terminal Junction Box

Pollak 10-Terminal Junction Box

Item # PK52248
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Pollak Accessories and Parts - PK52248
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This junction box provides a quick and easy way for you to connect the trailer plug to the trailer wiring. The box also makes your trailer connector simple to replace. Call 800-298-8924 to order Pollak accessories and parts part number PK52248 or order online at etrailer.com. Free expert support on all Pollak products. Guaranteed Lowest Price and Fastest Shipping for Pollak 10-Terminal Junction Box. Accessories and Parts reviews from real customers.
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  • Reviews (69)
  • Q & A (16)
  • Videos (2)
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Pollak Accessories and Parts - PK52248

  • Wiring
  • Junction Box
  • Pollak

This junction box provides a quick and easy way for you to connect the trailer plug to the trailer wiring. The box also makes your trailer connector simple to replace.


Features:

  • Provides quick and easy way to wire trailer plug to trailer wiring
  • Allows simple replacement of trailer connector
  • Has black, ABS plastic construction


Specs:

  • Box dimensions: 7.5" long x 3.75" wide x 2.5" tall
  • 1-Year limited warranty


52-248 Pollak 10-Terminal Junction Box





Video of Pollak 10-Terminal Junction Box

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




Video Transcript for Pollak Wiring PK52248 Review

Today we're going to be taking a look at part #PK52248. This is the Pollak 10-Terminal Junction Box. This junction box is going to provide a quick and easy way for you to connect the trailer plug to your trailer wiring. The box is also going to make it very simple and easy for your trailer connector to be easily replaced. It's going to feature a nice black durable ABS plastic construction. Here on the inside, it's going to contain 10 terminals. These are going to be size 10 or .190 of an inch terminals.

It's got a nice little lid that goes over the top for a secure connection. It's going to come with the four bolts that goes in the four holes right here to connect the lid to the actual box. Let's go ahead and go over some measurements real quick. Now, the length of the box, not including the mounting tabs, is going to give us a measurement of 7 1/2 inches. The width of the box is going to give us a measurement of 3 3/4 of an inch. Then the height of the box is going to give us a measurement of 2 1/2 inches tall.

The mounting holes on this box are going to be separated center-on-center going this direction by 8 1/8 of an inch. Going this direction, those mounting holes are going to be separated, it looks to be, by 3 3/16 of an inch. You can see everything that it comes with here on the table. It's going to come with the nuts that are going to attach our ring terminals to each of the terminals located here in the junction box. That's what these 10 are over here. It's going to come with the four bolts to attach the lid to the actual box.

It's going to come with these four nuts, as well. Those are going to be designed to go on the backside of a bolt when installing this to your mounting location. Those bolts are going to be sold separately. You may already have those, and you may just want to use your existing bolts if you're just replacing the box. If you don't have some, you can, simply, pick some up at a hardware store, and you can use the included nuts right here. It's going to come with these grommets.

Four of the grommets are going to have the open design. Those are going to be what slides into this portion right here. You're going to have two slots on this side, two slots on this side, and two slots in the front. It's going to allow plenty of room for your wires to go through into the junction box, but it's also going to help in assisting keeping out any dirt or grime from getting in here and causing any type of damage or corrosion to the connection points themselves. You're also going to get two grommets that are solid. Now, these are going to allow you to cover up the slots that you don't want to use. That way nothing gets in there. If you want a tighter connection, if these holes are too big for your wiring, you can just make a little slit in there and use it for that function, as well. It's a really nice design. Again, durable ABS construction. It's going to come with a lock nut for each terminal, grommets, open and closed, to protect the connection points by keeping out dirt and grime. It's going to come with the bolts to get the lid attached. That's going to do it for our review of part #PK52248. This is the Pollak 10-Terminal Junction Box. .


Customer Reviews

Pollak 10-Terminal Junction Box - PK52248

Average Customer Rating:  4.8 out of 5 stars   (69 Customer Reviews)

This junction box provides a quick and easy way for you to connect the trailer plug to the trailer wiring. The box also makes your trailer connector simple to replace.

- PK52248
by:

Very good product that made wiring my home made utility trailer easy. The box has plenty of room for your wires and long studs for those connections that need many wires, like the ground. There was also enough room above the studs for me to mount the Tow Ready 118158 converter to the cover and keep it protected. The 3 extra studs worked out perfectly to hook up the converter as well. Only thing that would make this better is if it included more solid grommets so you could make smaller holes in some or plug more of the openings, but some silicone sealant will fix this. I did most the wiring before mounting to the trailer, only had to connect the blue brake wires after mounting. 184871



- PK52248
by:

This is the third one of these I have bought. I have nothing but good to say, room to grow excellent. 442867


Comments
Excellent 3 boxes on 3 trailers and no colorization
Ken - 10/15/2018

44641

- PK52248
by:

Good afternoon I found your products to be very good quality and I look forward to putting them through the paces considering I work at a training center. Your service reps were very product knowledgeable and answered all of questions and didn't push me toward something I don't want or need. I look forward to working with you guys again in the near future. 573281



- PK52248
by:

I bought this box because It had 10 terminals,and extra space is a plus for future add on's. I also bought this one because it was more expensive and figured it would be better quality than the cheaper unit, but I feel that the plastic housing is flimsy and could break easily also there is no gasket on the cover to keep water out. It will get the job done but I not thrilled with it. 180875



- PK52248
by:

Good product for what it does. Wish it was a little thicker. Makes a clean wiring job possible. Mounted mine inside a tool box along with the brake emergency battery. Did away with the "boat trailer" wiring the manufacturer had installed. 317861


Comments
Still doing good. Helps that it’s out of the weather and sun.
ARIC - 11/22/2017

31177

- PK52248
by:

Works great, mounted on the inside of the frame, had plenty of room for my wires and makes installing the new lights and IV cable a breeze. 793723



- PK52248
by:

Worked great, installation was simple and quick. Have used trailer several times and brakes worked perfectly. 782933



- PK52248
by:

Worked great plenty of room on the terminal posts for xtra circuits and accommodating to a variety of different harnesses... 747185



- PK52248
by:

worked well. 733293



- PK52248
by:

Good price on a quality, hard to find product. Shipped quickly and well packaged. 715765



- PK52248
by:

Wonderful product for an even better pr ice. 706417



- PK52248
by:

Over the years I have installed 10 or more of the ten pin connection boxes on other people’s trailers. This time it was on my 5th wheel. It is a great box and makes for a much nicer fix in the future. I also had to replace the 7 wire pig tail because the plug was pulled off. I bought the 6ft. Coiled cable. I used a 1/2 inch clamp to hold the cable at the box and a Connect-to-Protect to keep the cable up out of the weather. The products are great and look great too. Thank you, Philip 700033



- PK52248
by:

I haven't put it on the trailer yet, waiting on one part that I order. But, looking at it... it well built and like how it has pretty room to bring in many wires and keep them looking like a professional install them. 695976



- PK52248
by:

Great product and great people to deal with at etrailer they followed up with me to make sure I had my product on time just all around great service 682503



- PK52248
by:

Great box for making all the connections for the plug harness, trailer brakes, and the brake battery and safety switch. etrailer has all the parts needed to rewire a trailer from plug to lights!!! 678306



- PK52248
by:

The junction box worked great. I feel better about how clean all the wiring is now. 665000



- PK52248
by:

Product was delivered promptly and what was ordered. Thank you. 662260



- PK52248
by:

I recommend this Great Product, very Versatile, open Architecture, Solid Construction! 639949


Comments
Excellent product very durable
Al W - 05/09/2020

76055

- PK52248
by:

Pollak ten post junction box. Been using them for years. Never disappointed 637615



- PK52248
by:

makes wiring your trailer much easier. great product, thank you! I ordered one for both my trailers. 615891



- PK52248
by:

Product is solid, does as advertised. 610919



- PK52248
by:

As described. Fast shipment. Great site 604067



- PK52248
by:

very handy when wiring up a large trailer with many lights. 583881



- PK52248
by:

I liked this terminal box for managing wiring on the back end of my truck. The previous owner did a hack job on the wiring when they installed an aftermarket bumper and headache rack so I used this to correct the problems they introduced. I repaired the wiring harness and then used an inline 7 pole 5th wheel splitter to run all 7 connections to the junction box rather than have taps in each of the factory wires. This let me take off multiple lights from the junction box with clean and easily maintainable ring connectors on the ends. I was able to safely wire the aftermarket blinkers and backup lights through the junction box rather than taps to maintain the integrity of the factory wiring harness. 581076



- PK52248
by:

Nice product as advertised, I still like etrailer 545650


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Show More Reviews

Ask the Experts about this Pollak Accessories and Parts

  • Junction Box Replacement Recommendation for Trailer that Uses Cap Connectors for Trailer Wiring
    Cap connectors are not the best way to connect wires. The Pollak 10-Terminal Junction Box # PK52248 would be a way better way to make the connections as opposed to what you have now. I attached a picture that shows the junction box wired up next to the picture you submitted to show the difference. I also attached an install video link for this as well.
    view full answer...
  • Installing Trailer Connector and Junction Box on 20ft Gooseneck Trailer
    If you click on the link I've provided, you can see our Trailer Wiring FAQ article, which will show you exactly how the connector on your gooseneck trailer should be wired. I took the liberty of looking in on your order, and saw that you're using a # HM20048 wiring connector and a junction box, which is exactly what I'd recommend. I've provided a wire color code chart for the # HM20048 connector. I've also linked you to an install video for the junction box, which will show you exactly...
    view full answer...
  • Recommended Junction Box For Individual Trailer Brake Wiring
    My recommendation for the junction box is the Pollak 10 terminal Junction Box, # PK52248. This will give you individual terminals for your 8 contacts. I'd suggest using the other two for a hot supply line and a ground line so you can just add jumper wires within the junction box itself. Your application will be a customized one, but this additional junction box will allow you to have the simple troubleshooting you desire. I would not go smaller than 12 gauge wire for trailer brakes,...
    view full answer...
  • Comparing Regular, Fused, and Circuit Breaker Junction Boxes for Trailer Wiring
    Given that trailer wiring only consists of basic light functions, 12 volt power, and brake output a system of fuses is not necessary because it is easy to determine if something is not working. If there was a short, the way you would know with or without a fuse junction box is going to be the same either way. You still have to fix the short and in the case of a fused junction box replace the fuse. A fused junction box would prevent a short from going any further than the junction box....
    view full answer...
  • Size of Terminals in Pollak 10-Terminal Junction Box Part # PK52248
    The terminals on the interior of the Pollak 10-Terminal Junction Box are size 10, or .190 of an inch. You would need a ring terminal suitable for a # 10 stud for a 10-12 gauge wire.
    view full answer...
  • Why Are Their 7 and 10 Terminal Junction Boxes Made for Trailer Wiring
    I attached a picture of a 10 terminal junction box that is using every single available terminal. If you had turn signals that were separate from your trailer brake lights this would be the junction box to use along with the # 118158. Otherwise the 7 terminal box like part # 38656 would be all that you would need.
    view full answer...
  • How to Connect Wiring to Marine Battery for Interior Lights of Enclosed Trailer to Work
    To charge the marine battery in your trailer you need to run some wiring from the pin in the 11 o'clock position on your trailer 7-Way to your marine battery (see attached photo). This should be the same wire that your breakaway kit is connected to. If you have a junction box like part # PK52248 inside your trailer then you will just need to connect your battery to that 12V power wire. This will charge your battery whenever your trailer 7-Way is connected to your truck. For your reverse...
    view full answer...
  • Recommended Wiring, Junction Box, And Breakaway Kit For 18-Ft Tandem Flat Bed Trailer
    To re-wire your 18-ft trailer you will need a few things. I recommend installing a junction box like part # PK52248. You can run your trailer connector like part # H20044 to the junction box and use the terminals in the box to run the wiring to the trailer. For 7-way jacketed wire I recommend part # DW04914-1. This is sold by the foot. The junction box will also make it easier to install and use a breakaway kit like part # HM20001. This kit includes a charger and a weather-resistant...
    view full answer...
  • 7 Pin or 10 Pin Junction Box Recommendation for Wiring Up a Trailer
    The biggest difference between the two junction boxes that you referenced is the number of terminals. The # 38656 has 7 and the # PK52248 has 10. For a 7-way I would recommend you go with the 7 pin box part # 38656 since there would be no need for more circuits than you have. We don't carry the yellow marker (known as paint markers, available at local hardware stores), that you see in the attached video, but any marker or even a pencil could be used as long as it is visible to you....
    view full answer...
  • Junction Box To Wire Lighting on Flatbed Trailer
    Yes, the Pollak 10-Terminal Junction Box part # PK52248 will work to wire up the lights on your flat bed trailer. The posts on this particular junction box are not labeled so you can connect your functions to the box on any of the posts. Since you are just doing lights, you can just leave the rest of the posts unused without any issues. You will need ring terminals part # 44-5310A to connect your wiring to the terminals.
    view full answer...
  • How To Run Grounds for Lights on an Aluminum Frame Trailer
    It sounds like you may be wondering how to attach the grounds on your trailer because it has an aluminum frame which you have either read or experienced issues with. If that is the case then I recommend you first use a junction box like the Pollak 10-Terminal Junction Box part # PK52248. Once you have this you can then run all of your lights and trailer connector to a single ground point on the coupler with a ring terminal like the part # DW05762-1 (junction box to coupler) and extra wire...
    view full answer...
  • What is the Wire Gauge on 10 Inch Electric Trailer Brake Magnets
    The magnet wires on Electric Trailer Brake Assembly # A35W42B are 18 gauge. The wiring going to the brakes from a trailer connector is usually larger such as 10 gauge # 10-2-1.
    view full answer...
  • Brake Conversion from Hydraulic to Electric Brakes on a 1984 Shoreline Boat Trailer
    Thanks for your recent purchases and sending us a picture! It's always better to add electric brakes on both axles because it reduces the stress on all components. You will need a 7-way molded connector # H20046 for your trailer to plug into your 2002 Ford F-150's 7-way connector. This connector is 8 feet long. I highly recommend getting a junction box like # 38656 or # PK52248 because it's an easy way to connect the wires from trailer connector to wiring for 6- or 7- connectors....
    view full answer...
  • 2-Wire to 3-Wire Converter for RV with Combined Lighting and Trailer with Separate Lighting
    I have a solution for you, but there is not a plug-in adapter to convert your RV's taillights from combined wiring to separate wiring. If you are pulling a trailer with separate lighting, you will want to use a 2-wire to 3-wire converter. I recommend the Tow Ready Vehicle to Vehicle Tail Light Converter # 118158. This system will install below the 7-way trailer connector # H20046 on the trailer. The converter will keep the trailer lights as a 3-wire, separate light system while they...
    view full answer...
  • 2-wire to 3-wire Converter for Trailer Lights
    The Tow Ready Converter # 118158 will work well for your application. This converter needs to be installed downstream, so to speak, of your trailer connector. This converter box is not designed to be exposed to the elements, so you will want to mount it somewhere on the trailer where it is protected. You could also use a fuse box, like # PK52248, to protect the converter. If the ground wire from your trailer connector is already grounded to the trailer, the converter's ground wire can...
    view full answer...
  • Replacement Trailer Wiring Junction Box For 1994 Featherlite Horse Trailer
    I did some research and was unable to find the white plastic you were referring to that holds a box for trailer wiring but may have a solution for you. We offer a trailer wiring junction box like part # 38656. This junction box has the junctions included and makes wiring a 6 or 7 way trailer connector easy. This box measures 7 x 3-1/2 x 2-1/4. For a 10 terminal junction box I recommend the Pollak Junction Box, part # PK52248. This box measures 7-1/2 x long x 3-3/4 wide x 2.5 tall....
    view full answer...




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Info for this part was:

Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Written by:
Tyler C
Video Edited:
Andrew L
Installed by:
Cole B

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