Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long
(244 reviews)
Price: $62.48
Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long
Item # 277-000141
Our Price: $62.48
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- All Info
- Reviews (244)
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- Videos (2)
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Epicord Accessories and Parts - 277-000141
- Trailer Wiring
- Junction Box
- Epicord
- Epicord 7-way molded trailer plug and 7-gang junction box
- 10' Long heavy-duty cord
- Wire gauge and function:
- White (ground): 10 gauge
- Black (12V power): 10 gauge
- Yellow (reverse/auxiliary): 14 gauge
- Red (left turn and stop): 14 gauge
- Green (tail and running lights): 14 gauge
- Brown (right turn and stop): 14 gauge
- Blue (brake): 12 gauge
- Weatherproof and corrosion resistant
- Hardware included
- cETL and ETLus Listing
- Junction box dimensions: 8" long x 2-1/4" wide x 3-1/2" tall
- 1-Year Warranty
RV078-10X Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long
94244
Video of Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Epicord 7 Way Molded Trailer Plug with Junction Box Revew
Today we're going to be taking a look at and showing you how to install the Epicord. This is a 7-way molded trailer plug connector with junction box. The 10-foot length is part number 277-000141. The 7-foot length is part number 277-00142. Here's what our wiring kit is going to look like. This is the 10-foot length.
As you can see, we've got a good long length here, nice heavy-duty jacketed 7-pole cable. That's going to go right into our 7-pole plug. This is going to plug right into the back of any 7-pole vehicle and give us all the signals going right to our junction box. This is going to eliminate a lot of the splicing and different wires, trying to get a connection here, get a connection there. These all can be made in the safety of our weather-proof box. You can see here as we open it up, this is all pre-wired.
Got a really nice factory seal here. It's going to keep out the elements for us. We've got top and bottom entries or exits and we've got side entries. This is going to take care of the brake signal going to our trailer, our ground. We've got 12 volt power and we're going to have all our stop signals, out turn signals, everything we need to head down the road safely. After we've decided on our positioning, we can just use a couple of self-tapping screws and secure it right to the frame of the trailer.
Now we can secure our wire off however you want to, whether it's using zip ties or our customer had some loom clamps installed here, so we're just going to go ahead and use them for him. That'll give us length to get up here to the front and our customer's requested that we just leave this loose. He's got a longer and a short tongue for the trailer, so just coil that up here for now, let's make these connections. Let's get our cover pulled off here. The first connection we're going to make here is going to be for our ground wire. Actually, just poke that right through the plug there, going to run this down and I want to connect it right to the white.
I'm going to add a ring terminal to the end of that. I need about 7 of those and that's going to be part number 44-5310A. If we use an 8mm we can back the nut off, right there, and just start laying our new ring terminals right on top. Now, I'm going to bring my brake wires through, this is going to be the ground and also the power for our brakes. Now we'll run in our 4-pole wires. Now once you've got all the wires ran in that you need to for your box, you can actually tighten down the screws there. There's a little clamp that will hold all those wire nice and secure. Now, it's just a matter of getting our cover back on there. Now we'll just plug it into the back of the vehicle here and we can run through our lights. We have our running lights, our left blinker, our right blinker and also our brakes. And that's going to complete our installation of the Epicord, a 7-way molded trailer connector with 7-way junction box.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
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Customer Reviews
Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long - 277-000141
Average Customer Rating: 4.7 out of 5 stars (244 Customer Reviews)
by: Mark H.09/24/2023
The trailer plug/junction boxes worked out very well! Using them made it a lot easier to rewire the trailer.
by: Blais Racing11/20/2016
I installed this product yesterday and it is a really nice product. It would be a great product if the darn wire colors from the plug were the same as the industry standard. But if you go by what is on the small mount that the wires screwed to it is accurate.
I got the longer 10' cable as I wanted to mount it further back than the stock metal electrical box that they mount all the stuff in from the factory. I ended up mounting it on the bottom side of the cross braces on the bottom side of the trailer.
I also installed a seperate fuse box to individually fuse all the circuits so that if anything on the trailer shorted out it wouldn't blow the fuses in the truck.
by: Richard10/06/2023
Very disappointed that the plug molding is too long for my truck's factory plug outlet. Look at it wrong and it'll fall out of the outlet. I tried trimming it down so the door would hold the cable catch, but the rubber is too soft.
by: Raymond04/20/2024
The product is very nice real heavy duty but I must of wired it wrong because the brakes were on all the time as I was driving down the highway and cooked all 4 bearings and destroyed all 4 brake pads
by: Matthew 06/15/2019
Little over a year since install and no problem thus far with this product. The rubber grommets supplied with it keeps everything water tight. Wires are not colored coordinated! I overlooked that detail in product description and had to rewire everything, lol.
Mike L.
6/18/2019
Actually, theres more than one accepted wire color convention when it comes to trailer wiring color codes which is why we list the function for each terminal/wire color in the product description.
by: Chase05/03/2019
It was just as expected. Good quality and no hidden issues.
For everyone else’s essay, the studs are 5mm. So, for the best fit grab you some 5mm heat shrink ring terminals. 1/4in for the mounting hardware. This went on my boat trailer, so I grabbed some stainless steel 1/4in hardware and used nylon lock nuts. I used extension cord for my wire runs. A grounded extension cord will give you your 3 wire runs for the tail lights, a standard 2 blade extension cord for any marker/running lights. Heatshrink adhesive butt connectors on all connections. The wiring info that ETrailer provides was correct for my 2019 F150.
Overall makes for a solid trailer light setup. Highly recommend this junction box.
by: Chris F. 08/22/2017
Used this to convert a trailer from 4 pin to 7 blade connector so that I could add brakes. Gives a nice place to terminate your wires. The wire color guide on the product page was very helpful when it came to wiring up the trailer. Plan on putting some type of sealant around the wires because unless you use a large 7 conductor wire there will be a gap where water could get in.
by: diggerules02/24/2017
This product is great!! It is probably overkill for my little utility trailer but I was tired of re-wiring it for shorts in the crappy standard wire that came with the light sets. This junction box feels very sturdy and has the cable/plug is very hefty as well. Easy to setup. The colors didn't match what my car was but it is very simple to swap the terminals to what you need. I forgot to take more pictures through out my install.
by: Allen02/09/2018
This is worth every penny as far as im concerned. Makes wiring up everything on trailer from plug to tail light so much easier. The junxtion box also makes finding shorts easier since it is the hub for all accessories.
by: Larry 09/27/2023
I do business with many prevailers but I have yet to find one equal to E trailer. They are fantastic people to do business with and quality parts. Thanks for being in there.
by: John05/01/2020
I needed to completely rewire my landscape trailer because of the poor quality of the original components. This is quality hardware. The only issue I had was the color/functions of the new component did not exactly match with the color/functions on my trailer. It was not a difficult issue to overcome.
by: Allen03/18/2018
Last project built. Used etrailer for almost all parts, 7 pin wiring harness, junction box, tail lights, jacks vent cover and so. Love the leveling jacks. Friend wants one now so started another one. I will be getting all the parts from etrailer...
by: Nolan Anderson03/15/2017
This is a great part It made wiring
in the trailer very easy. It fit underneath the gooseneck and mounted up real nice. I recommend it to anyone that needs to rewire their trailer.
by: A02/09/2024
Great all in one unit
by: Ronald04/24/2018
I just finished mounting this to my trailer frame and it really seems to be a top notch product. It's so much cleaner looking and sealed connections.
by: Randy02/18/2019
I took delivery today and installed it onto the body of my slide in camper immediately. Installation was simple and effective. There's multiple slots for every applications. Everything works great.
by: Philip V06/02/2023
Absolute Garbage!!! Why would they not follow the 7 pin color code?? Red is reverse, green is running, brown is left blinker, yellow is right blinker??? Why would etrailer sell this garbage?
by: Mark11/05/2022
STOP!!! Wiring colors are non-standard.
The wiring colors do not match the standard. All of the colors are there, they are just rearranged. I hooked it up thinking that it was a color to color matchup like EVERY other product for 7-pin connectors and now I have to replace a special $xx fuse in my truck that I cannot get for 2 days. Not to mention the troubleshooting time.
There are standards for a reason, the products that you sell should adhere to them, or be clearly marked that they DO NOT. Simply listing the colors and hoping that someone notices they're wrong when they're ordering is insufficient.
I have 7 trailers and all of them follow the standard, except this one now.
by: Francis 07/13/2023
Paul was Fantastic !!! Great customer service !!
by: Dale S05/07/2017
Cord was excellent. I was concerned about the wiring of the plug, but the wiring was completely compatible with my 2015 Ford Expedition and Airstream Trailer. (Yellow auxiliary center wire) No changing around of colors on the wire ends. Great!! It would be nice if Etrailer also sold this cord without the box, as I have a great box inside the Airstream for wiring, and had to remove the box to run the cord through the frame tube. But, for the price of the entire product, the box was really a nice "gift" for those who need it. Thanks, Etrailer.
Dale S.
5/7/2018
It was very well made and we have had NO problems with it. Thanks.
by: Jens05/05/2023
Excellent product one more step to simplify our trailer building process
by: Tyrone 06/20/2023
Very happy with this product. I'm looking forward to installing it on my trailer. Very solid and well made.
by: Rob02/21/2019
Can you provide a pin out / wire color vs location on the 7 way plug Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long - 277-000141 I ordered. I'm seeing several installs where the wire color on this plug dose NOT match standard trailer wire color. Also it did not come with any paper work or instructions stating this. Example yellow is standard trailer for left turn. This 7 way plug looks to maybe use yellow for aux power going by other install photos and research.
This will be a major set back as my trailer has already been compleated and went by standard trailer wire color. ?????
Mike L.
2/21/2019
There is more than one accepted color code/wiring convention for a 7-way trailer connector. The color code for the Epicord 7-way plug/junction box is as follows: °White ground: 10 gauge °Black 12V power: 10 gauge °Yellow reverseauxiliary: 14 gauge °Red left turn and stop: 14 gauge °Green tail and running lights: 14 gauge °Brown right turn and stop: 14 gauge °Blue brake: 12 gauge. This is shown on the product description page on our website.
by: Kenneth01/31/2019
This new cable and distribution box will make the wiring job quick and easy. Trailer previously had a 4-wire system (no brakes) and was not up to current standards for lighting, so I'm replacing everything electrical and adding the brakes. This will help immensely.
Kenneth
1/20/2020
This project turned out great! I really like buying from etrailer. They always have what I need, along with great customer service and fast shipping.
by: Will M.05/23/2019
Love the 7 way barrel plug! Was easy to mount the junction box and connect the correct wires to the terminals once ring lugs were attached to the wires. Great light/brake trailer system cable and box!!!
Love etrailer.com!!!
Will M.
5/24/2020
fine
25
244
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See what our Experts say about this Epicord Accessories and Parts
- What Amp Circuit Protection Usually Protects Brake Output Circuit for Trailer Brake ControllerWhen installing junction box like the etrailer part # e99011 that you referenced you do not need to install a fuse on the trailer wiring but if you were asking about on the vehicle side the brake output circuit is typically protected by a 30 amp fuse or breaker.
view full answer... - Wire Color Match to 4-Way Wiring with Epicord 7-Way Molded Trailer Plug 277-000141Yes, you are correct about the install of the # 277-000141. The wiring colors you mentioned are correct except the blue wire is for brake output from a brake controller. You would want to run the black wire for both the lighting and a 12 volt auxiliary. Unless you wanted to run the same circuit on your tow vehicle up to the battery as well. The yellow wire you mentioned is reverse light typically.
view full answer... - Wiring A 7-Way Plug To A Trailer With Only 5 WiresAs far as your trailer side, We would have to assume that the green is your right turn, yellow is left turn, and brown is tail lights. Generally white will be ground and black will be 12v power. That being said, wire colors are not universal, and we do recommend going in with a wire tester # PTW2993 to determine function. When installing the 7 way, you would leave the purple (reverse lights) and blue (brake output) wires disconnected. Since it sounds like your trailer is not wired for...
view full answer... - How to Connect Brake Wiring to a 2000 Jayco Eagle That Has a 6-Way Connector Installed Since, you do not have the 7-Way RV trailer connection that the majority of trailers with brakes use, I recommend using Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long, 277-000141. This product will allow you to wire all of your trailer's lighting functions and the newly installed brake wiring into a junction box. The box has a 10 foot trailer connection with a 7-way plug. The 7-way plug will allow you connect your trailer's lighting and brake wiring to your vehicle's 7-way...
view full answer... - Recommended Wiring for Clearance Lights on Homemade 16 Foot Car Hauler TrailerDepending on the size of your trailer there are some requirements for lighting. I've attached an article to assist. When wiring a trailer, I do like the option of including a junction box. I personally really like the Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long # 277-000141. This will allow you to use ring terminals # 44-5310A to make your connections. For clearance lights, you want to splice into the running light circuit (normally the brown wire) on your trailer....
view full answer... - Parts Needed to Add 7-Way to 1999 Camplite Damon 2408SLETo upgrade the 4-way of your 1999 Camplite Damon Model 2408sle to a 7-way so that you can use the brakes of the trailer you'd want to use the Epicord 7-Way with Junction Box part # 277-000141. You'd cut off the 4-way of you trailer and run it to the matching posts of the junction box and then run 10 gauge wire like part # 10-1-1 from the brake output pin of the box to the brake assemblies and you'd be set.
view full answer... - Parts Needed to Add Trailer Brakes to Trailer with 2,900 lb AxleThe 2,900 lb trailer axles have the same spindle dimensions as the 3,500 lb axles so for a hub drum you'd want the # DX68XR and then for brake assemblies # AKEBRK-35-SA for a set of self-adjusting assemblies. The other things you might also need is 10 gauge wire like part # 10-1-1 which you'd need to use to wire up the assemblies and then if you have a 4-way wiring setup currently you'd want the Epicord Junction Box # 277-000141 to convert to a 7-way.
view full answer... - Adapter Needed to Tow Trailer With 6-Way Connector Using 7-Way Connector Equipped VehicleFor a tow vehicle that has a 7-way blade-style trailer connector like # A10-7072VP and a trailer that has a 6-way connector such as # PK11604, you could absolutely use an adapter like the # 47549 you'd looked at. This is a universal adapter, which is handy because there are two accepted ways to wire a 6-way trailer connector. One way uses the center pin as the 12-v trailer accessory power feed, the other uses center pin as the brake output. The adapter has the center pin wired as the...
view full answer... - What All Is Needed To Add Brakes To A 2017 NuCamp T@g TrailerThere should be no issue adding brakes to your 2017 NuCamp T@G, but you will need to verify a few things, like weight capacities, wheel bolt pattern, and bearings, to make sure they will fit properly. With that being said, a few of these will be examples and again, will need to be verified before ordering. I did also include an article we have on adding brakes to a trailer for reference. To start with, you will need to contact NuCamp with your VIN to see if they can tell you your bearing...
view full answer... - Parts Needed to Rewire Trailer that Has BrakesFirst thing you'll want is a 7-way/junction box like part # 277-000141 which you'll mount near the front of the trailer. This covers the 7-way that runs to the vehicle and gives a place to run all of the wires for the rest of the trailer wiring. For 10 gauge wire to use for the brake output circuit and 12 volt accessory you'd want the part # 10-1-1 which we sell by the foot. And then for the lighting functions you'd want the # DW04923-1 which is also sold by the foot.
view full answer... - How to Convert M105A2 Cargo Trailer from Air-Over-Hydraulic Brakes to EOH or Electric Drum BrakesThe M105A2 military trailers don't have standard axle sizes as they utilized a variety for their specific needs. If you have 10 inch, 12 inch, or 12-1/4 inch drums you can make a conversion to electric drum brakes. You will need to measure your hub diameter as well as you hub depth to find the correct fit. I've attached a link to you options to assist. Then you will use # 10-1-1 wire sold by the foot and the Epicord 7-Way Molded Trailer Plug with Junction Box - 10' Long # 277-000141...
view full answer... - How To Switch from Hydraulic to Electric Over Hydraulic Brakes On a TrailerIn order to convert from hydraulic to electric over hydraulic brakes you'll simply need an electric over hydraulic brake actuator. The HydraStar Electric Over Hydraulic Actuator for Disc Brakes part # HBA16 is our most popular option and what I recommend using. Then you'll have to address the coupler. The coupler may have a place for a lockout pin but if not you can either weld it or replace it altogether. I have attached the options for replacement. The last thing you'll need is the Trailer...
view full answer... - Troubleshooting Horse Trailer Wiring Where Brakes Lock Up ImmediatelyHorse trailer wiring is funny as there's two different ways the standard 6-ways can be wired with the only real difference being the brake output circuit and the 12 volt accessory circuit being swapped. What would have solved your problem initially is if you had swapped those two circuits on your Dodge Ram 6-way initially before messing with the other circuits. If you check out the picture I attached it would be swapping the blue and black wires.
view full answer...
- Troubleshooting 7-Way Trailer Wiring with Colors That Don't Match FunctionsWiring by function is the route to go for your situation. This is done by testing each wire of your trailer individually. The easiest way is to use a 12V battery and connect the negative terminal to the trailer's ground on the frame and then use the positive terminal with a jump wire to connect to each individual wire. One wire in your 7-way will be the ground wire. You will want to find this one first because it will cause a spark if you connect the battery to it. You can trace...
view full answer...
- How To Convert a Trailer From a 4-Way to a 7-Way Trailer ConnectorIn order to convert a trailer from a four way flat to a seven way round I recommend using the Trailer Wiring 7-Way Upgrade Kit part # 277-000141. It comes partially pre-assembled along with the rest of the components you need to make the switch. The only thing you need to do is cut off the old trailer connector and then attach these wire leads to the junction box.
view full answer... - How To Switch from 023-324-00 and 023-325-00 To Electric Trailer BrakesIn order to convert a trailer from hydraulic drum brakes (023-324-00 and 023-325-00) to electric drum brakes you can use the Electric Trailer Brake Kit part # AKEBRK-6. The hubs/drums can be reused but you will need to update the wiring using the Trailer Wiring 7-Way Upgrade Kit w/ Junction Box part # 277-000141. The old actuator can be locked out or replace with an option below.
view full answer... - 7-Way, Junction Box and LED Light Kit for Boat TrailerThe Epicord 7-Way Molded Trailer Plug with Junction Box # 277-000141 will be a great start for rewiring your trailer. Basically you'd mount the junction box close enough to the front of the trailer that the 7-way reaches the tow vehicle and then you'd wire up all your trailer functions/lights to the box and you'd be good. The part # TL36RK is an LED, waterproof light kit designed for trailers that are over 80 inches in width like what you have. You can use the included 4-way wiring for...
view full answer... - How Does Trailer Get Wired for a Battery for Powering Interior LightsWhen adding a battery to a trailer to power accessories like lights the idea is to run the charge circuit from the 7-way wiring (12 volt accessory circuit 1:00 pin position) to give it a maintenance charge when towing. So that's just a matter of running a length of 10 gauge wire like part # 10-1-1 (sold by foot) between the battery and the connector. Or if you don't want to charge the battery you can leave the charge circuit off but you'd need charge the battery periodically. Deep cycle...
view full answer... - Troubleshooting Failing Brakes on Trailer Being Towed by a 2017 GMC Sierra 1500If the issue occurs only when there is metal-to-metal contact between your 2017 GMC Sierra 1500 and the trailer then it is definitely a ground issue. Since you have a GM shop check out your truck I would venture to say that your trailer is the issue. Start off by checking the 7-Way connector on your trailer and making sure that it is clean and free of corrosion. If that looks good move on to the ground connections on your trailer. Since the issue is with your brakes check your main ground...
view full answer... - Is Continuity from Running Lights or Brakes to Ground Normal When Installing a Junction BoxYes, the continuity you are seeing after connecting your wiring to your junction box, like part # 277-000141, is normal. The only way that you wouldn't get continuity is if there was a break in the circuit somewhere. If you have your tow vehicle handy you can also test your wiring by simply connecting the 7-Way from your junction box to the 7-Way on your vehicle. You can then run through each light function to make sure your lights are working properly and use the manual override on your...
view full answer... - Recommended Suspension/Axle/Hub and Brake Assembly Recommendation for Home Made TrailerActually, using the Timbren Axle-Less suspension like the # A35RS545E would be an excellent place to start. It's not necessary, but many will join both axle assemblies using a 2x2 steel tube to tie both sides together for stability. Each assembly includes the Suspension/Spindle assembly, the 10 inch hub/drum and the electric brake assembly. Both assemblies have a combined capacity up to 3500 lb, so it'll work well for your trailer. The bearings, races, grease seals, dust cover and lug nuts...
view full answer... - How To Hook Up Both the Tow Dolly and Vehicle Tail Lights To MotorhomeIn order to have both the tow dolly's and towed vehicle's lights active at the same time while being pulled behind a motorhome, the motorhome's trailer lighting circuits must be rated for the amp draw of both sets of lights. If that is the case then what you are going to need to do is make your own custom adapter as they don't offer anything for this purpose. The parts you will need to make this adapter are the Epicord 7-Way Molded Trailer Plug with Junction Box part # 277-000141 and...
view full answer... - Adding Brakes to 2022 Sport Haven AUT612DThanks for all of the info you gave on your 2022 Sport Haven AUT612D utility trailer. Since you have a 3,500 lb axle the brake assemblies part # AKEBRK-35-SA that you referenced is the correct kit to use. Then for hub/drums you'd want the # AKHD-545-35-EZ-K which fit the spindles you have, the brake assemblies mentioned, and also have the correct bolt pattern. For wiring up the assemblies you'll want 10 gauge wire like part # 10-1-1 which we sell by the foot. And then to convert your...
view full answer... - Adding Trailer Brakes to Trailer with 3,500 lb Trailer AxleYes you can absolutely do that. It's actually pretty easy to do too. What you need first is hub/drums that fit your current spindle that are designed for brakes with the Dexter hub/drum part # AKHD-545-35-EZ-K. This fits right onto the spindles you have now. Then for brake assemblies that fit this hub and your brake flanges you'd want the # 23-468-469 and you'd be set. When wiring up the brakes be sure to use 10 gauge wire like part # 10-1-1 which we sell by the foot. If you have a 4-way...
view full answer...
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Info for this part was:
Expert Research:
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Expert Research:
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Expert Research:
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Expert Research:
Jeffrey L
Video by:
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Dakar D.
11/20/2017
I loved that I got the longer replacement so I was able to move it to a more easier place to access.