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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 (48)
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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   (47 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
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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
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Quality part. Makes wiring and troubleshooting a trailers electrical easy. 608194



- 3375601101
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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
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GTG 590899



- 3375601101
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Used this product to upgrade both of my trailers. Makes troubleshooting the wiring harness very easy. 711349



- 3375601101
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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
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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
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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:

The box is rather light weight for the amount of wiring that has to go into it. The positive and negative posts are together at one end next to the cover attachment post making access very difficult. But the box is better than what the manufacturer provided. If you are adding disc brakes with an additional four wires you might consider a different box. 637992



- 3375601101
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Products as advertised. Prompt shipping. Thanks 678448



- 3375601101
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Great product and price 825289



- 3375601101
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Quick delivery. Sale price was great! Paid less for 2 units then I would have paid for a single unit locally. 819864



- 3375601101
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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. 819566



- 3375601101
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Exactly as advertised 816381



- 3375601101
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Great product for adding options to any trailer. I used it on a boat trailer I was putting new lights on that had integrated backup lights. 812259



- 3375601101
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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!” 808578



- 3375601101
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Good product fast shipping 806230



- 3375601101
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The products are exactly what I needed. Delivery was in a couple of days from placing my order. 802551



- 3375601101
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Meh. Bought this thinking it would be made for trailer brake connections, but blue terminal is labled aux. Probably doesnt matter, but colors dont match the harness cable. :( 802394



- 3375601101
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Really nice junction box. Perhaps over the top for a 4 wire utility trailer, now it will be easy to replace the box to tongue wire a harness. 787073



- 3375601101
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thumbs up 786641



- 3375601101
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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 776294



- 3375601101
by:

Got my quality products fast at a fair price. Highly recommend etrailer for all ur trailer needs 775699



- 3375601101
by:

Installed this product and literally forgot about it! No Problems. No Failures. I recommend it to anyone that pulls a trailer 775505


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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...
    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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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 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...
  • 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...
  • 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...

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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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