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Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS

Trailer Wiring Junction Box - 7 Color Coded Terminals - ABS

Item # 3375601101
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Accessories and Parts 3375601101 - Junction Box - Buyers Products
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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 800-298-8924 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.
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  • Reviews (67)
  • Q & A (15)
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  • 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   (67 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:

Fast service & the parts were perfect as advertised. Very pleased & will definitely order again. 665366



- 3375601101
by:

Quality part. Makes wiring and troubleshooting a trailers electrical easy. 608194



- 3375601101
by:

Works good, easy to get all the wires to and to the plug. I would like to see them use better cover bolts, so they don't rust. 767509



- 3375601101
by:

This is a piece of crap! Cheap plastic. And the terminals you need for 10ga wire are located at the ends of the terminal block, so you have no space to turn that 10ga wire back on itself to make a proper connection. Then one of the screws for the cable entry/cinch snapped off....so the whole thing is a useless waste of time and money! 569119



- 3375601101
by:

Easy to install, nice that posts are color coded but not necessary. Great to have blank plugs and 7 way loom size grommets. 677700



- 3375601101
by:

GTG 590899



- 3375601101
by:

Used this product to upgrade both of my trailers. Makes troubleshooting the wiring harness very easy. 711349



- 3375601101
by:

This is my second order for this part. I was pleased with the first one and the quick and efficient service, not to mention the price, I decided to get a second one for my other trailer 577778



- 3375601101
by:

A friend use one of these on a recent trailer project and I was going with one of etrailer’s coiled 7 way cables so I ordered this junction box to connect it. Great construction, simplifies connections for a much more serviceable and neat appearance. Recommending etrailer to all my friends and family. 595636



- 3375601101
by:

Great product, made the wiring so much easier. 901154



- 3375601101
by:

As described worked great 900651



- 3375601101
by:

He knew exactly what I was looking for and gave me options 900642



- 3375601101
by:

Useful product 897825



- 3375601101
by:

897237



- 3375601101
by: 09/29/2020

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. 894387



- 3375601101
by:

Works great on the trailer to change plugs when someone borrows the trailer! Great way to wire multiple sockets on the vehicle! 885863



- 3375601101
by: 09/11/2020

Worked good for wiring my trailer 877414



- 3375601101
by:

Easy ordering and print shipping ! 873270



- 3375601101
by:

Little bit smaller then I expected, but I'll make it work 869346



- 3375601101
by: 08/25/2020

868559



- 3375601101
by:

These are the only way to wire a trailer. From bumper pulls to goosenecks, so easy to isolate any problems. 864082



- 3375601101
by:

E trailer is a great place to solve my trailer ptoblems. Thank you E Trailer 862536



- 3375601101
by:

I received two trailer wiring boxes in a timely manner and perfect condition. Will be wiring trailers soon. 862529



- 3375601101
by: 08/05/2020

Ended up not using this however it was well made 856318



- 3375601101
by: 08/05/2020

Well built unit. Made wiring my trailer alot more efficient. 856189


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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...
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  • 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...
  • 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...
  • 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...
  • 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...
  • 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 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...
  • 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...
  • 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...
  • 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...
  • 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 Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long # 277-000141 which is 10-ft long 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...
    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...
  • 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...
  • 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...
  • 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...

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Info for this part was:

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

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