1. Accessories and Parts
  2. Buyers Products
  3. Wiring
  4. Junction Box
Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS

Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS

Item # 3375601101
lowest price pledge
Retail:$59.96
Our Price: $20.38
You Save: 66%
Accessories and Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.73 lbs
Quantity: 
In Stock
Accessories and Parts 3375601101 - Junction Box - Buyers Products
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Color coded terminals in the ABS box provides a fast, easy way to connect the wires from the trailer connector to the wiring for either a 6-way or 7-way connector. Makes replacing your trailer's connector simple. Call 800-298-1624 to order Buyers Products accessories and parts part number 3375601101 or order online at etrailer.com. Free expert support on all Buyers Products products. Guaranteed Lowest Price and Fastest Shipping for Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (131)
  • Q & A (18)
  • Videos (2)
  • Photos
  • Why etrailer?

Buyers Products Accessories and Parts - 3375601101

  • Wiring
  • Junction Box
  • Buyers Products

Color coded terminals in the ABS box provides a fast, easy way to connect the wires from the trailer connector to the wiring for either a 6-way or 7-way connector. Makes replacing your trailer's connector simple.


  • Electrical junction box consolidates your truck's wiring
  • Color-coded terminals help you stay organized
  • ABS construction
  • Number of terminals: 7
  • 1-Year warranty

5601101 Buyers Products Electrical Junction Box - 7 Color Coded Terminals - ABS





Video of Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS

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




Video Transcript for Buyers Products Wiring 3375601101 Review

Speaker 1: Today we're taking a look at a trailer wiring junction box. This is a durable ABS plastic box that creates a fast, easy way to connect the wires from your trailer connector to the wiring on the trailer for either a six way or a seven way connector. It also makes replacing your trailer's connector simple if and when needed. The electrical junction box consolidates all the wiring connections on your trailer to one location.It mounts to a secure area of the trailer's frame. As you can see, internally it features seven terminals or posts. Each post comes with a flat washer and a nut.It's really simple and easy to use also, and I want to point out that the terminals are all color coded which helps you stay organized.It comes with hardware to secure the lid to the box so that has two holes right here so that way you can attach the lid securely.It also comes with the internal strain relief brackets and screws.It comes with rubber plugs already installed which keeps dirt, grime and moisture out of the box.

Then for whatever slots you want to use, you can remove the solid rubber plug and replace it with a rubber plug that has a hole in it for the wiring to pass through.Now basically how you would use this is you would put ring terminals on the ends of all your wiring on the trailer side and on the trailer connector side. If you have a yellow wire from your trailer connector, you put a ring terminal on it, connect it to the yellow post. Then if you have a yellow wire from the trailer side, put a ring terminal on it, connect it to the same post and then that combines those functions together. Then you just repeat that for all the different terminals or connection posts.I want to go over a few measurements with you real quick, starting with the overall measurement going edge to edge in this direction from outside edge of one tab to the same point on the other, it's about eight inches.Our mount holes are separated on center by about 7-5/16" as inaudible 00:02:17 going in this direction here at the base is about 3-1/4" and the overall height or thickness gives us a measurement of about, I would say, about 2-1/4" to 2-3/8" right in that area.That's going to do it for today's look at the trailer wiring junction box.


Customer Reviews

Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS - 3375601101

Average Customer Rating:  4.7 out of 5 stars   (131 Customer Reviews)

Color coded terminals in the ABS box provides a fast, easy way to connect the wires from the trailer connector to the wiring for either a 6-way or 7-way connector. Makes replacing your trailer's connector simple.

- 3375601101
by:

Received the Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS. It is well made and includes wire grommets. It will make the wiring replacement/upgrade for my dump trailer easy.


Comments
Still working fine. Easy to wire.
Mark F - 01/23/2021


- 3375601101
by:

I have a 2019 Forest River travel trailer. I started having brake problems and the dealer was no help so since i have some experience I started looking at the issue myself. What i found was a series of loose and poor 12v connections throughout the braking system and some in the lights as well. The main culprit was connections in the main junction box, see pictures. The factory used a household style jbox and not a quality sealed jbox. I looked on line to fInd a suitable solution that allowed easy access and easy installation. This product fit the bill Perfectly. After a couple hours work to remove the old box and install the new one (in new location) cut and install proper ends on all the wires and make clean secure connections my trailer now has brakes that work properly. The new box came with all necessary screws, nuts and has plenty of wiring install point options. It is all plastic so i was careful not to over tighten any of the screws used to retain the harnesses on each end of the box. Thank you for a great product. Tim Gunter, TX Happy Camper



- 3375601101
by:

Excellent product, well made and sturdy. Color coded anchor bolts to secure your 7pin connections with the wiring of your trailer to match up appropriately with assigned functions from your vehicle’s harness. Which is all standard! Gasket sealed to help protect connections if attached outside exposed to the elements. Extra sleeves provided in case your wire harness is slimmer in diameter or wished to seal proof the junction box. Can’t express enough how easy, convenient, and the quality of this product has been from install and to this point in time. Over a year in my trailer, and looks just as good as the day I put it in. It is made of thicker plastic, built to last, and has held up with no deformation of any kind within my enclosed trailer in the Texas heat. Im sure my trailer, being black, and enclosed, bakes over 160 degrees in there.......if not over or near 200 degrees. Yet plastic is still good and not brittle, and like I said......is no different than the day I put it in. I bought it to rewire my whole trailer and to include reverse lights and electric brakes. Original wiring was complete BS and had splicers, which caused intermittent working lights and shorts. I gutted and rewired the whole thing with thicker gauge wiring, heat shrink connections with heat shrink tubing over that, and any possible friction points I wrapped with tape and put heat shrink tubing over that. Needless to say, the color coded connections within the junction box made my life so much easier. Not to mention the thought process that went into the design of this junction box for a clean install no matter where you decide to mount it was a God Sent! You wont regret this purchase! I’ll quote Chef Paul Prudhomme on this one,...... “ I Guarantee!”



- 3375601101
by:

This junction worked perfectly! So handy to have under your vehicle to wire up a wide variety of accessories! I used it to wire up flush mount pod lights that I installed in the rear bumper. They serve as reverse lights and they’re also wired to come on with a switch. Very handy!



- 3375601101
by:

I have bought 2 of these, they make wiring my trailers very easy. It makes for a very sanitary looking job.



- 3375601101
by:

This thing is awesome. Even though my trailer was wired one way with the truck wired with different color wires doing different things, with the color coding of this box it made things a lot easier to wire. Multiple ways to get wires into the box, color coded, it made the job of rewiring my trailer a snap.



- 3375601101
by:

I put this on a boat trailer to keep the connections out of the water. Easy way to link up the wires and keep it dry. I like the entry points for the wire makes it easy to adjust to different wire sizes.



- 3375601101
by:

Works as advertised. I used it on an enclosed snowmobile trailer. When I replaced the pig tail, I decided to replace the existing rats nest of a junction box. The only reason I didn't give it 5 starts is that the plastic isn't the most durable. You have to be careful not to put too much torque on the fasteners. I thought I was using very light torque with hand tools, but I ended up striping one of the fasteners that holds the cover on. I decided to use a light coat of sealant to ensure the cover stays on.



- 3375601101
by:

Made connecting trailer wiring with truck wiring very easy. The color coding and instructions was very precise and easy to understand. My first time to use a junction box but it won't be my last for wiring a trailer.!.



- 3375601101
by:

Was really looking for a box made in the USA; however, that was only wishful thinking. The boxes worked but I'm skeptical that the box will meet my expectations. More room is needed to adequately attach the wires to the lugs (I used soldered terminal connectors with heat shrink tubing). The replacement grommets that the wire (made in the USA) bundle goes through to enter the box are not tall enough or made to completely seal when the lid is screwed on. Furthermore, the lid will need a bead of silicone as a gasket to hopefully make the box waterproof. I will keep looking for waterproof boxes that can be used for junction boxes.



- 3375601101
by:

Used this on my 5th wheel and has worked very well.



- 3375601101
by:

Easy to use and solved Ford 7 wire convention verses harness I had.



- 3375601101
by:

I have been building trailers for a while now. When I found etrailer they cut my cost way down. I really haven’t shopped elsewhere sense!



- 3375601101
by:

Excellent customer service and shipping. Product exactly fits my need to connect two tail lights for an extended e-bike rack. The cable and connection box were well built and easy to implement.



- 3375601101
by:

A quality product and easy to install



- 3375601101
by:

This terminal strip is larger and better than I expected. It will really make my wiring connections easy!



- 3375601101
by:

This product is exactly what I ordered. Delivery was fast and I’m very pleased with etrailer.



- 3375601101
by:

Keeps the connections dry & out of the weather. Quick delivery! etrailer is my go-to place for my trailer related supplies



- 3375601101
by:

Works great on the trailer to change plugs when someone borrows the trailer! Great way to wire multiple sockets on the vehicle!



- 3375601101
by:

This enclosure is great to terminate the power and also connect the stop, running and license plate lights on my welding trailer. It is waterproof and is "the best thing since sliced bread". Highly recommended



- 3375601101
by:

This junction box was really easy to work with. It's sort of not actually necessary, but it makes life a whole lot easier, and I really like the idea of having it for future upgrades and changes. Build quality was great and I'm just plain glad I bought it.



- 3375601101
by:

These are the only way to wire a trailer. From bumper pulls to goosenecks, so easy to isolate any problems.



- 3375601101
by:

Product was used on my 25 year old horse trailer to clean up all the splices and additions that has occurred over many years. Color coded terminals was a bonus.



- 3375601101
by:

Just the right size for my trailer, great people Thank you!



- 3375601101
by:

Great little box and gets the job done


28
134
Show More Reviews

Ask the Experts about this Buyers Products Accessories and Parts

  • How to Complete Electric Brake Wiring to Trailer Connector
    It sounds like you have a junction box like part # 3375601101 installed on your trailer and the brake output wire from the assemblies are ran to this but not to the trailer connector. If that is the case than all you will need is a ring terminal like part # 44-5310A and some spare wire like part # 10-1-1 to finish running the brake output wire from the junction box to the trailer connector. It sound like you may also need a new trailer connector as well and for that I recommend the...
    view full answer...
  • What Size Ring Terminals Should be Used with Buyers Products Junction Box # 3375601101
    The ring terminal size you need for the posts of the junction box part # 3375601101 that you referenced is 3/16 inch like the part # 44-5310A which would work great. The terminal matches the correct ring size and also is designed for 10 to 12 gauge wire.
    view full answer...
  • What Size Thread/Nut Does Buyers Products Junction Box # 3375601101
    The size of the nuts that fit the posts of the Trailer Wiring Junction Box # 3375601101 is M5-.8 pitch. This does not come with extra nuts.
    view full answer...
  • Dimensions for Buyers Product Wiring Junction Box # 3375601101
    The Buyers Products Trailer Wiring Junction Box # 3375601101 referenced in your question measures 6.5 inches long, 3.21 inches wide, and 2.5 inches tall when the cover is installed. The mounting holes at each end are spaced apart 7.38 inches on center. I have attached an image to assist.
    view full answer...
    Image 1 for
  • Can a Junction Box be Used for 4-Way Flat Trailer Connector
    You could technically use a junction box like part # 3375601101 for a 4-Way connection, like part # HM38134, but since junction boxes are designed for 7-Way connections you'll need to find a way to plug up the larger hole since you're only going to be running 4 wires through it instead of all 7. We do carry some different style 4-Way connectors like the Quick Fix # HMC20031 which make connecting the wiring a little quicker but I feel like this isn't as solid or secured of a connection...
    view full answer...
  • Can I Use Wiring Junction Box part # 3375601101 On A Boat Trailer
    The Trailer Wiring Junction Box part # 3375601101 is not designed for a marine application unless you keep the junction box as far away from the the water as possible. If you mount the box on the tongue and it doesn't get backed into the water when launch the boat then you should be okay. There may be boxes out there made for marine applications but we do not carry them at this time.
    view full answer...
  • Is Black Terminal for Trailer Wiring Junction Box Used for Reverse Light Circuit
    When connecting wiring to the Trailer Wiring Junction Box # 3375601101 you can actually make whichever terminal connect to whatever function you'd like. Typically the color black is used for 12V power when it comes to trailer wiring but if you wanted to use that terminal for the reverse light circuit it would still work, you'd just have to remember to connect the reverse wire from your trailer 7-Way to that same terminal.
    view full answer...
  • Can a Junction Box on a Trailer Short Out?
    Junction boxes like # 3375601101 have independent terminals for each function that don't connect to each other. It would be very possible for a connection to go bad or lose connection, but it is not normal for an entire junction box with all its functions to go bad. I've attached a trailer wiring diagram to assist. It sounds like you may have lost multiple functions, so I recommend checking your ground connection as that could absolutely impact multiple functions and then check vehicle...
    view full answer...
  • Replacement Junction Box for etrailer 7-Way Upgrade Junction Box Kit
    I wonder if the box was stressed in some way when bolting it to the trailer. Maybe one of the install bolts was pulled the box in a direction that stressed it. That said, for just the box you'd want the part # 3375601101 which is an exact replacement for what comes with the # e99011.
    view full answer...
  • Is the Yellow Wire For the Reverse Lights On the 7-Way Molded Trailer Wire Connector H20043
    In regards to the 7-Way Molded Trailer Wire Connector part # H20043, the yellow wire is for the reverse light circuit yes. This should then align with the pin responsible for the reverse light circuit on your vehicle. The terminology used for "AUX" is the same as the reverse light circuit. Please note, if you are rewiring a trailer I highly recommend you use a junction box, the Trailer Wiring Junction Box part # 3375601101 to keep everything organized. We also have the Trailer Wiring...
    view full answer...
  • Do I Need an Isolating Solenoid to Wire Aux Battery on My Trailer
    There are a few different ways you can wire a 12v battery to power your interior lights and maintain your breakaway battery on your trailer. You can find the 12v circuit on your trailer's 7 way connector, it's usually a black wire at the 11:00 o'clock position (if you are looking at the face of the plug). Connect that wire to the positive post of the new aux battery, and ground the negative post to the frame. Then you can connect to the aux's positive post to the positive post on the...
    view full answer...
    Image 1 for
  • Recommended Durable 7-way Trailer Connector Pigtail
    Hopkins does a very good job of constructing their molded 7-way trailer connector pigtails for durability, I can highly recommend part # H20044, which is 6 feet long. The best way to connect this to existing wiring is to use a junction box like # 3375601101. A junction box allows you to tidy up the connections, protect them from the elements and provides an easy way to change out the pigtail in the future should it become damaged again. One of the best ways to preserve the long term...
    view full answer...
  • Parts Needed for 7 Way Connector to Put on 17 Foot Long Food Truck
    It sounds like you're looking for a 7 way trailer side connector. The Hopkins # HM20048 you were looking at is going to be 11 feet long, so it's not quite what you're looking for. The longest 7 way trailer side connector we have available is the 18 foot long Bargman # 50-67-106, which will connect to the 7 way connector on your 2007 Toyota Tundra. If you need to, you can make up any distance you need to on your food trailer with either 10 gauge wiring # 10-1-1 or 12 gauge wiring # 12-1-1;...
    view full answer...
  • Do I Need a 7way Connector on my Trailer To Operate the Curt Echo
    I have a solution for you, but the Curt Echo Mobile Brake Controller # C51180 requires 7 way connectors on both the vehicle and the trailer to be used. I recommend using the Hopkins # H20044 and a junction box like the # 3375601101, which has color coded terminals to make wiring a breeze. This Hopkins connector will be compatible with both the Curt Echo and the 7 way on your truck if you need to tow without the use of the brakes. It also sounds like since you only have a 5 way connector...
    view full answer...
  • Parts Needed to Replace Trailer Connector on 2018 Rockwood A122s Pop Up Camper
    I have a solution for you, but there is not a "plug and play" type wiring solution available for this so you would need to cut your existing wires. Once you've done that, you can use the etrailer # e99011 which has a 5 foot long cord and comes with a junction box already attached. If you wanted to go with something slightly shorter, like the # 277-000143 that you were looking at, you can use that 7 way and add the Junction Box # 3375601101 to complete the wiring on your 2018 Rockwood...
    view full answer...
  • Recommended Wiring To Add A 7-Way Connector To Trailer And 1997 Dodge Pickup
    Lets start with adding the 7-way to your trailer to power your newly installed trailer brakes. You will need the Hopkins 7-Way RV Style Connector with Molded Cable # H20046 which will require you to cut off your old 4-way connector and I recommend using the Trailer Wiring Junction Box # 3375601101 for a clean connection to your new 7-way connector. Since you added trailer brakes you will need to run # 12-1-1 from the junction box to your electric trailer brakes. It is a good idea to...
    view full answer...
  • What Gauge are the Internal Wires of the Roadmaster RM-1064-B
    I spoke to Roadmaster and they said all 4 internal wires of the # RM-1064-B are 12 gauge jacketed wire. Depending on what you will be doing with this wire, the following parts may also be good options for add on parts as well. The Pollak Heavy Duty 4 Pole Round Trailer End # PK11402 would attach to the end of the # RM-1064-B very nicely. This would then pair with the Pollak Heavy Duty 4 Pole Round Vehicle End # PK11404. The # RM-1064-B would then attach to a junction box on the trailer,...
    view full answer...
  • Recommmended 4-Way Flat Trailer Wiring for Cargo Carrier Light Strip on Travel Trailer
    My recommendation for your application is to add a junction box like # 3375601101 which will allow you to connect another wire without "splicing in" on the trailer side and run wiring like # DW03240-1 for a longer run or # 16-4B-1 to the rear of your trailer and then use # HM48190.
    view full answer...




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Robert C
Installed by:
Robert C
Employee Adam E
Installed by:
Adam E
Employee Chris R
Video by:
Chris R
Employee Jonathan Y
Video by:
Jonathan Y
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.