bing tracking image
  1. Trailer Wiring
  2. Hopkins
  3. Trailer Connectors
  4. Trailer End Connector
  5. 7 Round - Blade
  6. Plug and Lead
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard

Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard

Item # H20046
lowest price pledge
Our Price: $46.90
You Save: 10%
Trailer Wiring
Orders above $99 qualify for Free Shipping
Shipping Weight: 2 lbs
In Stock
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

Customer Photos

Need help with installation?
Locate installers near me
Replace your damaged 7-way, RV-style, trailer-end connector with this molded cable. Durable cable covering resists damage. Wiring codes are RV standard. Lowest Prices for the best trailer wiring from Hopkins. Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard part number H20046 can be ordered online at or call 1-800-496-5010 for expert service.
  • All Info
  • Reviews (710)
  • Q & A (0)
  • Photos
  • Why etrailer?

Hopkins Trailer Wiring - H20046

  • Trailer Connectors
  • Trailer End Connector
  • 7 Round - Blade
  • Plug and Lead
  • 6 - 10 Feet Long
  • Hopkins

Replace your damaged 7-way, RV-style, trailer-end connector with this molded cable. Durable cable covering resists damage. Wiring codes are RV standard.


  • Pre-wired, 7-way, blade-style, trailer-end connector allows you to connect your trailer to your vehicle
  • Easy-to-grip tabs allow for simple plug in and disconnect
  • Flexible cable allows for easy positioning
  • Molded cable sleeving protects wires
    • Durable covering is insulated and corrosion resistant
  • Simple installation
    • Hardwire to existing trailer wiring
  • Meets SAE standards


  • Cable length: 8'
  • Wire gauges:
    • 14 Gauge - Red, brown, green, and yellow
    • 12 Gauge - Blue
    • 10 Gauge - White and black
  • 90-Day limited warranty

Wiring Code
Molded Connector Function Usual Trailer Wire
White Wire Ground White Wire
Red Wire Left Turn and Brake Yellow Wire
Brown Wire Right Turn and Brake Green Wire
Green Wire Tail Lights Brown Wire
Blue Wire Brake Power Blue Wire
Black Wire Aux. Black Wire
Yellow Wire Reverse Lights Purple Wire

20047 Hopkins 7-Way Molded Trailer Wire Connector, 8' Long

Replaces 20246

Installation Details H20046 Installation instructions

California residents: click here

Customer Reviews

Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard - H20046

Average Customer Rating:  4.8 out of 5 stars   (710 Customer Reviews)

Replace your damaged 7-way, RV-style, trailer-end connector with this molded cable. Durable cable covering resists damage. Wiring codes are RV standard.


Been very happy with the 90 degree wiring harness over the past year. It saved running the 7 pin connector over the tailgate. Replacing the 7 pin connector with new Junction box helped in cleaning up the mess in the old box. The new 7 pin wiring harness is lighter & more flexible. All 3 products are still working well and have saved me time & functionality.


I installed this Hopkins connector cable on my 2003 Jayco 12 Sd popup camper because I replaced hydraulic brakes on it with the electric brakes. Needed some extra wires. Four were not enough to operate the lights and electric brakes. Installation was quick. I had to match wires on the trailer with cable wires. Cable looks great and so far it works great. We just checked out on our first camping trip this year.


Bulletproof. I will order this again for future projects.


Order took a long time to arrive but was exactly what we ordered when it did get here. I understand the challenge is a shortage of labor at the distribution center.


My wire harness was easy to install, looked great and performed great. One year later and it still looks and performs great! I definitely recommend to anyone building their own trailer or are looking to upgrade to better wiring! My homemade trailer was a great success, thanks to!


Needed a new pigtail due to a short in my cable from wear. Spliced it in with the 7pin junction box and back on the road.


I was a little worried about this 7 wire cable because the price was quite a bit lower that the other products. But I was totally wrong about it. This is a very high quality and heavy duty product.I will buy another one for my Dad's cargo trailer.


Exact replacement for my 2018 Keystone Springdale. Good purchase- I carry a spare, seems like these cords only get damaged after dark!


Nice heavy duty. The cable jacket does shrink back from the plug a bit over time. I wish they were available with the other 7-way color scheme.


only negative is nothing to say what wire goes to what function. basically no diagram sheet but that is easily found Info


Could not get any easier to install, the wires were color coded as the wires on my enclosed car trailer


Are use the wiring harness to add brake lights turn signals and back up lights and running lights to my bicycle carrier I’ve added to my recreational vehicle

I had also purchased the combo light package from the trailer and it’s really nice to know vehicles behind me know what I’m doing when I’m turning stopping and it’s really great to see the extra light when I back up at night

The back up tail light system that I purchased from Arkins as been working out well staying waterproof and I enjoy the additional back up lighting when pulling the RV into a dark campsite
Paul A - 06/04/2021


I recently ordered this power cord for my travel trailer as my original cord became corroded and difficult to engage into the tow vehicle plug. It is not hard to tell the replacement cord is far superior to the original, fit and finish is great and slides into the receptacle with ease. Installation was a no-brainer, took me about an hour. When I originally ordered the cord, I ordered a cord 1 foot shorter than the original. I gave etrailer (Rebecca) a quick call and she cancelled the original order and got me the cord I needed with no delay -- Thank you Rebecca.

Still works great.
Grant R - 06/05/2021


Received the connector and attached wiring harness in a timely manner. Product was just as described and of very good quality. Will be an easy replacement for my old weathered car trailer connector.


I am replacing the trailer connection wiring harness as part of the brake system. My 5th wheel trailer is now 10 years old so this is a preventive maintenance step in the process. Hopefully with new wheel/brake parts my trailer brakes will work better.
Thanks and Rebecca for great support.


Great quality on this overmolded harness. Various/appropriate AWG wires for each pin. Looks like it w/last a long time.


Had some real issues with this one. Should have noticed when purchasing this harness is not wired using standard truck/trailer color format. Other than that it went together fairly nice. If the connector would come apart I was thinking of fixing the wiring my self.


Pros: Best wire gauge in a 7 pin connector I could find.

Cons: reverse lights (red), left turn (yellow), right turn (green), and running light (brown) and not wired correctly in the plug for their respective wire colors.

I bought this for a sealed plug with good gauge wire to help save some time. What I got was a total headache trying to find out the problem of why it was not working correctly. This might not have been so bad had it not been on a new to me truck that I was not so trusting of the wiring in it. So I wound up looking at the truck first not thinking the plug would be wired incorrectly.

Be warned.


Received it today and I have it installed. Easy to install and very satisfied with your product. Thank you


Etrailer was Johnny on the spot , got what I ordered in 3 days , great service . I’ll sure buy from them in the future . Thank you etrailer


Just like a Factory harness


Thanks for your help with parts for my trailer build. My wife and I are still making custom cabinets out of curly maple. We hope to finish this winter. We have taken it out 7 times this season. Thanks again.


The only reason I had to order myself a second one of these is that I cut the first one too short...after grumbling "measure twice, cut once" to myself about 50 times, I ordered the new one and will do the job right this time. I would also recommend using a junction box to make your connections; this helped me organize the project, and make neater, more secure electrical connections than simply splicing wires. Measure twice! // Kudos to for getting this to me quickly.

This molded plug pigtail has held up perfectly, in all kinds of weather, for the year that Ive had it installed on the trailer. Im still glad I wired it through a junction box like the one in Bob Hs review below. The box is a lot easier than managing 14 loose wires.
Hans V - 04/22/2015


Part of brake wiring assembly. I followed etrailer's wiring diagram.


proper sized wires

Show More Reviews

See what our Experts say about this Hopkins Trailer Wiring

  • How to Wire in a 7-way On a Trailer that has a 5-Way
    I attached a chart that details how the # H20046 would wire to your trailer's wiring. You will notice that the wire color column on the far right says "usual," this means the color codes are always specific. On your 5-way the jacketed circuit will be the ground circuit, the circuit next to that should be the running lights circuit, next to that should be the left turn/stop circuit, next to that the right turn/stop circuit, and finally the reverse light circuit, or sometimes brake output. The...
    view full answer...
    Image 1 for
  • Hopkins 7-Way Trailer Connector to Older Featherlite Wiring Recommendation
    The diagram you attached shows a 7-way wired up in what is considered the "traditional way." If you check out the chart I attached you will see the three ways (really only 2), that a 7-way can be wired. The Featherlite is wired up like the diagram on the left. Now to wire up the # H20046 all you would need to do is wire up the connector by FUNCTION and not color. If your trailer has the same wire colors as the diagram you attached the blue wires would match up, the brown of the trailer...
    view full answer...
    Image 1 for Image 2 for
  • Identifying Trailer Wire Colors and Troubleshooting Trailer Wiring Not Functioning
    I can help you identify the wire functions of the kit you have. The yellow wire is left turn/stop, the green is right turn/stop, the yellow and brown is left side running light circuit and the brown and green is right side running light circuit. You didn't mention a white wire though which is a very important circuit. That is the ground circuit and without it being connected to a clean metal surface on the trailer frame none of the circuits will function.
    view full answer...
  • Wire Function by Color on the Hopkins 7-way Trailer Connector
    The Hopkins 7-way Trailer Connector # H20046 does not include instructions however all you'll really need to know is the wire function by color on the harness: White - Ground Red - Left turn and brake Brown - Right turn and brake Green - Tail Blue - Brake power Black - 12 Volt Yellow - Aux I've attached a help article on wiring for you. You'll want to wire the harness by function instead of just matching the colors since your trailer very well may be different. I've also attached a...
    view full answer...
    Image 1 for
  • Troubleshooting Weak Ground When Installing Ram A-Frame 3,500-lb Electric Jack
    Your jack circuit breaker should be installed on the +12V wire that goes to the positive battery terminal. If your jack lights operate but the jack motor does not this tends to suggest that your problem is a weak ground connection. Weak grounds can often pass enough power to allow some low-power-draw functions like lights to work properly but will not pass enough current to operate the power-hungry jack motor. You can test this easily by applying your charged battery's power direct to...
    view full answer...
  • 7-Way Trailer Connector Sparked When It Touched Bare Bolt Of Trailer
    The 12V power connection on the plug does go directly to your trailer battery positive terminal. So it completed the circuit when it touched the grounded bolt on your trailer. This is not uncommon, so I suggest you just be a little more careful when putting the plug away. Your trailer wiring is working as it should. The trailer wiring is run from your vehicle, but that trailer battery will still give you that charge when the circuit is completed.
    view full answer...
  • Does 12 Volt Wire on Trailer Side 7-Way have to Be Connected if Trailer Does Not Need 12 Volt Power
    On a 7-Way trailer connector such as # H20046 the 12 volt wire would connect to any accessory that would need 12 volt power such as a trailer mounted battery or a jack in some cases. You usually do not see them on boat trailers. If you don't have anything on the trailer that needs 12 volt power you can just cap off that wire and stow it out of the way.
    view full answer...
  • Are All 7 Way Blade Connectors the Same
    Yes, there is only one type of 7-way blade connector. I am attaching a help article about wiring that may be of interest to you.
    view full answer...
  • How to Ground Trailer Brakes on an Aluminum Trailer
    On an aluminum trailer I would recommend you ground the brakes by running the ground wire back up to the ground circuit of the connector on the trailer. Aluminum frames do not make the best ground points so I wouldn't ground the assemblies to the frame. You would most likely have pretty weak braking performance if you did. I attached an FAQ on wiring that you might find helpful also.
    view full answer...
  • What Gauge Wire Should be Used to Wire Trailer Brakes
    That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary. On a smaller trailer with a single axle of brakes 12 gauge wire would probably be enough. But for a longer tandem axle trailer I would recommend you run 10 gauge wire to all the assemblies just to minimize the amount of resistance that would be on...
    view full answer...
  • How To Wire In a 7-way to Replace a Boat Trailer 5-Way Flat
    You definitely could install the 7-Way Molded Trailer Wire Connector # H20046 in place of the 5-way that is installed on your trailer currently. The colors wouldn't match up exactly. White would go to white, you would run both brown wires to the single green wire of the 7-way. Yellow of your trailer would go to the red wire of the 7-way, and green of the trailer wiring would go to brown of the 7-way. Now without knowing where the red wires of the 5-way go it's hard to say for certain....
    view full answer...
    Image 1 for Image 2 for
  • Which Replacement Hub/Drums and Brake Assemblies Needed for 1985 Monarch Horse Trailer
    As a first step, you'd want to determine the reference numbers from the inner and outer wheel bearings and the wheel bolt pattern used by your current hub/drums. If the reference numbers aren't readable, you'd need to use a digital caliper on the surfaces of the spindle where the inner and outer bearing and the grease seal ride. With this information, I can recommend a replacement drum. To recommend replacement brake assemblies, I'd need to know the inside diameter and depth of your brake drums.
    view full answer...
    Image 1 for
  • How to Protect Trailer End Connector From the Weather
    I looked through our product offerings and was honestly surprised when I saw we didn't offer a cover for a trailer connector. Since the tape didn't work for you, have you considered using some of that Press'n Seal plastic wrap? You could use a piece to cover the connector, and secure the wrap with the duct tape. That way, any tape residue would remain on the wrap and not the connector itself.
    view full answer...
  • How to Test the Functions of Trailer Tail Light Circuits
    The easiest way to test the functions of the taillight wiring on a trailer is to use a jumper wire. You will touch one end of the jumper wire to the positive post of a 12 volt vehicle battery and then touch the other end of the wire to all of the different wires to see what circuits illuminate. The other option would be to trace the wires back to see where they terminate.
    view full answer...
  • Replacing Damaged 7-Way on Horse Trailer
    There's more than one accepted way to wire a 7-way, but the most common uses the green wire for right turn/brake, yellow wire for left turn/brake, brown for running lamps, blue for brake output black for 12-volt accessory power to the trailer, white for ground and purple for the reverse light circuit. Because wire colors can vary so greatly, we typically tell folks to wire by function, not by color. An alternative color code is yellow wire for auxiliary or reverse lights, green for running...
    view full answer...
    Image 1 for
  • Does 7-Way Molded Trailer Wire Connector Have a Reverse Light Function
    Yes, the center pin on trailer side wiring harness # H20046 is for reverse lights on the trailer. For this particular harness it is the yellow wire. But it will only work if the center pin is functional on your 2012 Toyota Tacoma. If you have the factory installed 7-Way on the Tacoma then it should be active.
    view full answer...
  • What is the Reverse Light Wire on the Hopkins Molded Trailer Wire Connector # H20046
    If you will be using the Hopkins Molded Trailer Wire Connector, # H20046, then the yellow wire will attach to the wire from your reverse lockout solenoid. The yellow wire is attached to the center pin on the connector and the center pin in the trailer connector on your tow vehicle is for the reverse lights. Once the vehicle is shifted into reverse, the solenoid will close. I have attached a table that shows all of the wire functions for this molded trailer connector.
    view full answer...
    Image 1 for
  • How is Length of 7-Way Connector Lead Determined for Wiring Up Trailer
    The method you described would be a great way to determine what length to cut the # H20046. That way you would end up with enough wire that it wouldn't come unplugged when making a tight turn. Securing the wire up and out of the way is a smart option as well so that the weight of the cable would not want to pull it out of the connector and so that it doesn't get caught on anything.
    view full answer...
  • Troubleshooting Trailer Brake Lights That Illuminate when 7-Way is Plugged In
    You have trailer wiring circuits that are shorting out on either your truck or trailer to the stop turn circuits. Most likely it is the 12 volt power circuit shorting to the brake/turn circuits. You will want to check out the wiring on both your truck and trailer looking for any exposed wire that could be causing the short and fix as necessary. I attached a couple help articles on trailer wiring for you to check out as well.
    view full answer...
  • Trailer Running Lights Only Work when Interior Lights are Turned On
    If the white wire is the ground then what you might be experiencing is a short to ground. But the main issue here is that the interior lights need to be wired from the switch to the battery independently of any of the exterior lights. After you have isolated the interior light wiring from the external light wiring the problems may heal or it could reveal additional wiring problems. Be sure that all of the lights are grounded to clean and corrosion free bare metal surfaces. Try to inspect...
    view full answer...
  • Cable Diameter of Hopkins # H20046 7-Way Molded Trailer Wire Connector
    The outer diameter of the # H20046 cable is 5/8 inches. On the inside the red, green, yellow and brown wires are 14 gauge, the blue wire is 12 gauge and the white and black wires are 10 gauge. Bear in mind that the wire color code is non typical, the wiring color code is listed on the product description page.
    view full answer...
  • How to Wire a Hopkins 7-Way Trailer Connector # H20046 1987 Layton RV Trailer
    There are standard colors for trailer wiring, but not everyone will follow those guidelines and since your trailer is older it is likely that the colors are different. The best way to wire up your trailer with this 7-Way Molded Trailer Wire Connector # H20046 would be to test all the functions of the wiring on your trailer and then wire the # H20046 to it by function. I attached a review video for this product and an FAQ on trailer wiring for you to check out. I also attached a picture...
    view full answer...
    Image 1 for
  • Mounting Two Trailer Stop, Turn and Marker Lights on Each Side of a Trailer
    If you are using two stop/turn/marker lights on each side of the trailer, the only signal you will be able to separate out is the taillight signal. Trailers in the United States use a combined stop and turn signal so you would not be able to separate them to wire one light turn and marker and the other light brake and marker or brake turn and marker. You would essentially have two options. One light on each side stop/turn/tail and the other taillight only, or one light stop/turn only and...
    view full answer...
  • What is the outer Diameter of the Cable on 7-Way Molded Trailer Wire Connector, # H20046
    I went out to the warehouse and grabbed a 7-Way Molded Trailer Wire Connector # H20046 to measure it for you. I used a set of digital calipers to get an accurate measurement. The diameter of the outer black sheath is 0.59 inches or 19/32 of an inch. A hole 5/8 of an inch would be perfect for this size cable. I have included a link to a video review of this connector for you.
    view full answer...

< Previous
123. . .19

Do you have a question about this Trailer Wiring?

  • Why

    At we guarantee:
  • Highest quality trailer wiring 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 trailer wiring 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 Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Brandon M
Expert Research:
Brandon M
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Jeff D
Installed by:
Jeff D
Employee Shane T
Installed by:
Shane T
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

At 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. Let us know if anything is missing or if you have any questions.