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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  • 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. 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 (57)
  • Q & A (15)
  • Videos (2)
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  • Why etrailer?

Pollak Accessories and Parts - PK52248

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:  4.7 out of 5 stars   (57 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:

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:

Nice product as advertised, I still like etrailer 545650



- PK52248
by:

Still working great!!!!!!!!!!!!!!!! 407980



- 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:

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:

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:

Product was delivered in a couple of days. Arrived in excellent shape and was exactly what I required to use for my RV. 137365


Comments

Works great looks great and very functional!!!

Dan N - 06/24/2015

12797

- PK52248
by:

I got this to replace a metal box that's actually supposed to be used in a house. The old box was corroded and rusty, and I wanted a better way to make connections and something that would be cleaner to work with. Clean was wishful thinking. While I appreciate that the box was taped shut to keep the extra parts in, the tape used was the worst stuff I've ever dealt with. There were many small pieces of tape that didn't come off, plus the adhesive left behind was a total mess. If not cleaned, it would have become a complete dirt ball in a matter of days on dusty roads. I soaked it for more than 2 hours with Goo Gone and still had to scrub and scrape. I got most of it, but there's still some that will be collecting dust. If Pollak would spend a penny or two more per unit on better tape, it would save their customers that aggravation. The other small issue is what's been mentioned before, not enough solid grommets. Like others, I'll also be stuck with having to close the extra space in some of the grommets with silicone. I just wish manufacturers would read feedback and make improvements. 446928



- PK52248
by:

Installation was easy. 229995



- 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:

Had to replace the cable connecting my Springdale travel trailer to the tow vehicle. I ordered the etrailer 50-67-005 cable and the PK52248 junction box. The original cable was terminated in a standard electrical box with all of the connections done with wire nuts. When I opened the electrical box and pulled the wires out to have a look-see, one of the white ground wires came out of the wire nut. This is not the first time I have had a "loose wire nut" problem with this travel trailed so I decided the new cable would be differently. The j box was mounted to a 2 X 6 steel tube so I used 1/4 inch self drilling screws to mount it. I also used 1/4 in. self drilling screws to mount the metal cable clamps to hold the cables, going into the box. I used a couple of pieces of 3m mounting tape on the back of the j box to hold it in place to the frame while installing the mounting screws. I also made a small label to go in the lid of the j box to show wire colors and function. There was going to be five ground wires connected so I made a small bridge out of 1/2 in X .062 brass to go on the two end posts. I think this made a cleaner installation. When everything was wired and checked out I sealed the open grommets with RTV. The intermittent problems with the cable are now fixed. 413583



- PK52248
by:

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



- 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:

Worked great 2 nd one I have gotten from you. Thanks 522929



- PK52248
by:

Good product. Would recommend. 517350



- PK52248
by:

Just what I need to get my truck wired up 503503



- PK52248
by:

This junction box will work great to clean up the wire routing I have on my trailer and make it easier in the future to trouble shoot problems. 493023


Comments

So far so good, everything works great.

Tommy F - 04/05/2019

51475

- PK52248
by:

Had every item in stock and shipping was very prompt. Also had the order exactly as I ordered. Would order again. 489503



- PK52248
by:

As always product exactly as advertised and extremely quick shipping 478168



- PK52248
by:

It's a decent product for the price. It's little smaller than you would hope since it's not much larger that a standard 7 pole trailer junction box. 471022



- PK52248
by:

Used this junction box to rebuild the wiring system on a new trailer. Have used this type before and was impressed with the quality and ease of use. Made the new wiring much more secure and protected. One year later and it's working well. 463769



- PK52248
by:

Great little splice box to use for connecting other stuff to your 7 way wiring. 443899



- PK52248
by:

This junction box was perfect. It has enough & extra connection points for all 7 of My wire connection and 3 extra connections for any future use that may be needed. It was very easy to install and connect the wires. 406478



- PK52248
by:

Great products and super service. Arrived on time and in good condition. Products are always first rate and I can find stuff at etrailer I can't find anywhere else. My first stop for trailer parts. 389214



- PK52248
by:

Nice and neat box for trailer wiring ju nction 380707



- PK52248
by:

Thank you for caring the odd ball stuff. and the speed delivery. 342161



- PK52248
by:

Just the box I was looking for. Sturdy and room enough for my needs. Plugs included for the unused holes. 336069



- PK52248
by:

Etrailers catalogue provided a complete & accurate description of the 8 items purchased. Placing the order by phone was fast & efficient. Items arrived within 4 working days, no tax no shipping charge. Professional all around. 320257


Comments

The EOH braking system works perfectly. You are my supplier of choice ifwhen I need additional trailer parts on the future.

Pat M - 11/21/2017

31130

- PK52248
by:

Nice way to clean up trailer wiring. I wish it had a water proof gasket under the cover 297994



- PK52248
by:

Awesome product! Makes wiring lights more simplified if you have a pile of colored spaghetti to try and sort through. Recommend this product! 295882



- PK52248
by:

Just what I needed thaks again Vic kowe ll 252330



- PK52248
by:

good name brand use it for drag light plugs also 226937



- PK52248
by:

Good stuff... great products and info for professional trailer wiring. Most of the local yahoos have no idea how to do this correctly.... these guys know their stuff. No more corroded wiring connections inaccessible wire connections. Perfect. 219749



- PK52248
by:

I am very happy with the product. The description was very accurate. 210614


Comments

I just wanted to return a message saying that I am very pleased with the products that I have purchased and that I am very happy with how they are holding up.

Cory O - 07/29/2016

19786

- PK52248
by:

This is the second one of these I bought, Great product. I only wish there were a few more of the closed plugs. 207622


Comments

Still going strong, holding up well to sun light, staying dry inside

Ken - 06/25/2016

18947

- PK52248
by:

well built 190766



- PK52248
by:

The extra terminals provided the connections for my break away kit, nice junction box. 190730



- PK52248
by:

Exactly what I ordered and expected. Does just what I needed it to do. 178039



- PK52248
by:

I used this when replacing my seven round trailer connector. The ten terminals are a good idea. My trailer has a power winch, electric brakes with breakaway switch, 12volt power for inside the trailer, back up lights, and of course the required lights. Having all the available terminals made for easy wiring and clarity in wire runs. Much better than having a mess of wires in the battery box. This should be standard on all trailers. 168161



- PK52248
by:

just what i was looking for. works great 147853


Comments

mounted on trailer and fixed my problem

steve k - 08/24/2015

14519

- PK52248
by:

seems good fast shipping 147700



- PK52248
by:

Mounted this in my truck to use a terminal connection point for some of my accessories. Much better than splices and I am able to get everything wired up pretty easy now. 139122



- PK52248
by:

Great product really cleans up the look of my trailer. 121662



- PK52248
by:

Makes wiring simple. Not Watertight. No gasket in the lid, and comes with only 2 solid gromets and 4 large hole gromets. I'm not running a 1/2" bundle of wires out of four places in the box so I have to silicon the holes shut. Not major but should have come with enough solid gromets to seal the box up. 117975



- PK52248
by:

Have not installed at this time but the part looks to be well built and should fit the need it is intended for 112166


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Ask the Experts about this Pollak Accessories and Parts
Do you have a question about this Accessories and Part?


  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...


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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Written by:
Tyler C
Expert Research:
Jameson C
Video Edited:
Andrew L
Installed by:
Cole B
Photos by:
Amber A
Expert Research:
Jeffrey L
Photos by:
Zach O

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