Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard Hopkins Wiring H20046
  1. Wiring
  2. Hopkins
  3. Trailer Connectors
  4. Trailer End Connector
  5. 7 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
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Hopkins Plug and Lead Wiring - H20046
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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 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 etrailer.com or call 800-298-1624 for expert service.
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Hopkins Wiring - H20046

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

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


Features:

  • 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


Specs:

  • 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 12 volt (hot lead) Black Wire
Yellow Wire Aux. -



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   (602 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.

- H20046
by:

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.



- H20046
by:

Wiring harness is great, but BE CAREFUL: All the colors may not match up with what you have on your vehicle and trailer. Fortunately, as an electrician, I like to ohm the pigtails first to verify which wire goes where...glad I did. I would recommend and by this product again. "3 stars" because not everyone has the tools to verify which wire goes where, but they could connect color to color if that was the case.



- H20046
by:

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 etrailer.com!



- H20046
by:

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.



- H20046
by:

Whenever I order from Etrailer.com, I get super fast delivery and great products. They communicate just the right amount.



- H20046
by:

I've used these harnesses on many trailer repairs and they work great. The plug end does not come loose from cable, are adequate length to custom fit.



- H20046
by:

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



- H20046
by:

I could tell immediately this was a far superior cable to the one I had before. Built solid and when I tested it with the receiving end I heard a nice click knowing it was securely seated in place. The previous cable did not do this.



- H20046
by:

Again great product, great service


Comments
Still works as it should!
David - 03/27/2021


- H20046
by:

I have bought from etrailer and I'll buy from them again always great service and fast shipping and great products.



- H20046
by:

Great product, quality is obvious, has gotten a lot of use over the past year and still working great! Thanks, Ron



- H20046
by:

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 ETrailer.com and Rebecca for great support.



- H20046
by:

Good unit. As long as it isn't cold. Then the wiring gets extremely stiff. This isn't rated for cold flexibility, but I'm still withholding a star for it's lack of cold weather flexibility. I ended up buying a different pig tail that was rated for cold weather.



- H20046
by:

Excellent thick covering for the wires inside. Wires themselves are good quality too. The plug is durable and not cheap feeling. Overall the cable/wire system is very solid and I’m really pleased with the quality. I used this on my trailer project. (Bought this one, RV standard, and should have bought the other kind - not a big deal, just have to match colors up properly. I’m still very happy with it.)



- H20046
by:

Installed fairly easily, wiring colors matched previous wiring harness (verified before install with multimeter), and worked well. Would buy again!


Comments
Still going strong, just doing its thing. Wire harnessing it up. On the trailer. Passing those electrons from the vehicle back to the trailer. Five star quality marches on.
Will - 10/15/2019



- H20046
by:

I ended up ordering a non-standard item, and etrailer called and emailed to let me know this item was in stock. I changed my order and this item arrived quickly and was as advertised.


Comments
A year later, and this cable is still working great.
Dan - 06/04/2020


- H20046
by:

Thanks for getting our alternative parts out to us. etrailer is one of my best vendors!!



- H20046
by:

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.



- H20046
by:

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 Etrailer.com for getting this to me quickly.


Comments
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

Thanks for your follow up and reply. Also happy to hear that Bob H's review and suggestion of using a junction box was helpful to you.

-- Etrailer Expert Rachael H - 5/11/2015


- H20046
by:

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.



- H20046
by:

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.



- H20046
by:

Excellent quality and fit



- H20046
by:

Product shipped right away - ordered on Monday night and it shipped by lunchtime on Tuesday. (arrived Friday) I liked that I was notified via email with order confirmation and tracking information. The product was good quality and exactly as shown in the photo and description. I printed out the wiring diagram off the website, so the wiring presented no problem. An improvement would be to put a color diagram in the box with the unit. Other than that, everything was great.


Comments
Still no issues - product is working great!
Tabitha D - 01/26/2015



- H20046
by:

Excellent replacement for prior 7 point electric cable.


Comments
Great replacement for broken wires
Thomas - 08/11/2020


- H20046
by:

Once again etrailer.com had everything in stock I needed to complete my job, cant do it with out you guys.


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Show More Reviews

Ask the Experts about this Hopkins Wiring

  • Will 7-Way Connector Charge Auxiliary Trailer Battery
    The yellow wire on the Hopkins 7-Way RV Style Connector with Molded Cable # H20046 will not be able to charge an on-board battery, it should really be used for reverse lights. To charge the auxiliary battery on your trailer the best option is to use a battery charger such as the CTEK MULTI US 3300 12-Volt Universal Battery Charger # CTEK56353 which you would plug into a standard outlet. You can maintain that charge when driving by running # 10-1-1 wire along with 40 amp circuit breaker...
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  • Adding 5-Way Harness to 2018 Toyota Highlander With 4-Flat
    I'm a bit confused by your question; the Highlander you are getting has just a 4-pin flat, is that correct? And you are looking to tow a trailer with a 5-flat?
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  • Gauge Wire to Use When Wiring Up Brake Assemblies
    10 gauge wire like our part # 10-1-1 (sold by foot) is the correct gauge to use for trailer brake output circuits as it can deliver the amperage needed to activate the brakes properly.
    view full answer...
    Image 1 for
  • 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...
  • Can Electric Drum Brakes be Added to a Utility Trailer
    It can be possible to add electric drum brakes to an existing trailer that does not have them. The linked article explains in detail. The trailer will need to have or be fitted with brake flanges, the brake assemblies and hub/drums of matching dimensions and trailer wiring to support the brake circuit. The tow vehicle will have to be equipped with a trailer brake controller and a suitable trailer socket to match the one on the trailer. Typically trailers with brakes use a 7-way RV-style...
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  • Is Replacement Trailer Side 7-Way Connector # H20046 Male or Female
    The Hopkins 7-Way connector, part # H20046, is a male connector. The trailer side is the male end because it inserts into the vehicle side. This is somewhat misleading because usually a male connector has prongs and vehicle side trailer connectors have the prongs even though it is a female connector. I've never seen a vehicle with a male trailer connector. Likewise with a female on a trailer. Take a look at the pictures I've attached and see if they match the type of setup you have....
    view full answer...
    Image 1 for Image 2 for
  • Replacement 7-Way and Junction Box for 5th Wheel Trailer with Non-Functioning Brakes
    Since you have confirmed that your 5th wheel's brakes do not work even when connected to a different tow vehicle you will want to focus on the trailer for your troubleshooting. There are simple troubleshooting steps you can take to isolate the problem on the trailer. First, I suggest checking the condition of the 7-way plug. Sometimes corrosion can develop INSIDE the plug housing where it is all but impossible to detect. Normal exposure to the elements can cause this. Since your brake...
    view full answer...
  • Recommendations For Re-Wiring Horse Trailer With Brakes
    Since you said you have a 7-way blade connector on your Silverado I would start with the 7-Way Molded Trailer Wire Connector, part # H20046. This is an 8 ft long harness with the 7-way trailer connector. If you need a shorter harness you can check out part # H20044 which is a 6 ft long harness with the connector. You will want a circuit tester like part # 40376 to make sure you match the wiring on the trailer side connector to the functions on the vehicle connector. I then recommend...
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  • Wiring Trailer Reverse Lights Using Spectro Trailer Wiring Junction Box # 38656
    Power for your trailer's backup lights needs to come from the tow vehicle's reverse light circuit. You will need to choose one of the available circuit posts on the Spectro Junction Box # 38656 as the one you'll use for the reverse light circuit. Usually this would be the Auxiliary post at the far end of the box opposite the ground. Please refer to the linked photo. It does not matter what color wire you use to wire the trailer (although using the conventional colors does help keep...
    view full answer...
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  • Equipping 2004 GMC Sierra to Maintain Battery on Enclosed Trailer
    What you are wanting to do is actually pretty simple. The 12-Volt accessory circuit on your 7-way can be used to tend or maintain your battery on your trailer, but the circuit does not have sufficient amperage to charge a battery that has been completely discharged. Using a battery isolating solenoid like part # TR118665 would be advisable. This will prevent the battery on the tow vehicle from being discharged by disabling the 12-volt accessory circuit from the 7-way once the ignition...
    view full answer...
  • Can 7-Way Molded Trailer Wire Connector Connect to Roadmaster 6-Way # RM-910030-6
    Yes, the terminals of the RoadMaster 6-Way connector and socket part # RM-910030-6 are compatible with 10 gauge wire like what comes with the # H20046. The center pin of the 6-way is the 12 volt accessory circuit and the ground is the circuit in the 2:00 position as you look into the opening of the connector.
    view full answer...
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  • How To Hardwire a New 7-Way Trailer Connector by Function When Wire Colors Do Not Match
    You will need to wire the 7-Way Molded Trailer Wire Connector, # H20046, for function rather than by color. Since the trailer side needs to be replaced, you will need to trace the wires back to see which wire does which function. An easier option would be to test the connector you have, before replacing it, to see which wire color matches which function on the trailer side of the connector. Using a circuit tester, like # PTW2993, test the trailer side wires for: right turn and stop,...
    view full answer...
  • How to Make 6-Way Square to 7-Way Adapter
    To make a 7-way to 6-way square adapter will require you to get the part # 37995 to use the 6-way end and then wire up a 7-way to it like part # H20043. This will give you the adapter you would need since there isn't one already pre-made.
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  • Troubleshooting Tekonsha P3 Brake Controller 90195 Overload Issue
    Since your local technician tested your Pathfinder's 7-way and found it to have a functional trailer brake circuit, AND since your new trailer behaved properly when connected to another tow vehicle, the issue I suspect you might have is an intermittent short in the trailer wiring. If the trailer is not brand new there could be corrosive build-up on or even inside the 7-way plug. Water can over time migrate into even a sealed/molded 7-way plug like # H20046 and cause adjacent circuits...
    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...
  • 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...
  • Installing Hopkins 7-Way Trailer Pigtail to 2001 Sundowner Trailer
    The Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard # H20046 will connect to your 6 wires function for function. Many trailers will not have the reverse light function, so it is likely that you have a ground yet it is simply a different color wire on your trailer. If you check the functions using a circuit tester like # PTW2993 it is likely the red (auxiliary/backup) wire will not be used on this harness and the blue wire will only have function...
    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....
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    Image 1 for Image 2 for
  • 7-Way Diagram for 7-Way of 2014 Mercedes Sprinter 3500
    The PA66-MD40 is a standard 7-way which we have diagrams for. I attached a picture that shows how a standard RV 7-way gets wired up for you to check out.
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  • Diagnosing Malfunctioning Turn Signal and Brake Lights on Gooseneck Trailer
    Although the brake and turn signals work on the truck, I would recommend testing the 7-way connector on the truck to determine if the problem exists in the trailer wiring on the vehicle, or on the trailer. Use a circuit tester like part # 40376 and test the pins on your 7-way that are in the 3:00 and 9:00 position. With the right turn signal on you should see power on the pin on the 3:00 location. With the left turn signal activated, the pin in the 9:00 location should light up the tester....
    view full answer...
  • 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...
  • 7-Way Trailer Connector has 8 Wires and Brake Lights do not Work
    On a 7-Way trailer connector the brake lights and turn signals are on the same circuits. The pins in the connector at the 3 o'clock and 9 o'clock positions are the turn signal and brake light circuits. On the tow vehicle side use a circuit tester such as # 40376 or a meter if you have one to test those pins while someone sits in the vehicle and steps on the brake pedal. If there is no power on those pins during this test then the issue is on the vehicle side and is likely a blown or missing...
    view full answer...
  • Is a Battery Isolator Needed when Adding a Battery to a Trailer
    First, the 12 volt circuit from a trailer connector, and most factory alternators on vehicles, are not able to charge up a trailer mounted battery. What they will do is provide a maintenance charge and keep the trailer battery at its current charge level. A battery isolator will only send power back when the vehicle is running. This will help to keep from draining the vehicle battery. Or you could just disconnect the trailer from the tow vehicle when you stop for long periods of time....
    view full answer...
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  • Adding a Battery and Wiring to a Non-Powered Trailer to Add Interior Lights to an Enclosed Trailer
    The first thing you will need is a battery and a battery box. The wiring for the light will need to be connected directly to this battery via a switch that you can get at a hardware store if the light does not already have a switch. Or you can install a new light that has a switch like the Trailer Dome Light with Switch and Aluminum Base, # IL61CB. Mount the switch in the trailer, route the wiring from the light to the switch, and then from the switch to the battery. If the light is...
    view full answer...
  • Troubleshooting Trailer Lights Not Functioning When Headlights are On
    It sounds like you have a bad ground connection. If all ground connections are not making good contact to bare metal, when the tail lights are turned on then the trailer lights will go out or not function properly. You will need to check all of the ground connections especially where the tail lights are mounted to the trailer frame, and where the light brackets are mounted if they are bolted to the frame. If a plastic license plate holder is mounted between the left side taillight and...
    view full answer...
  • Wire Colors and Functions of Hopkins 7-Way Molded Trailer Wire Connector
    There are two color code standards that are used in the trailer world. The Hopkins 7-Way RV style connector and cable, # H20046, that you referenced uses the RV Industry standard color code which is as follows: White Wire - Ground Red Wire - Left Turn/Brake Brown Wire - Right Turn/Brake Green Wire - Tail Lights Blue Wire - Brake Controller Output Black Wire - 12 Volt hot lead Yellow Wire - Reverse Lights or Auxiliary Circuit This color code is commonly found on camping trailers...
    view full answer...
  • Recommendations For Complete Re-Wiring Of 6 X 12 Enclosed Trailer With LED Lights
    We do have everything you need to re-wire your 6 X 12 enclosed trailer. We also have any of the lights you said you want to use as well. For trailer wiring I recommend installing a 7-way so you can operate the light inside the trailer. The 7-way wiring I recommend is the Hopkins # H20046. This harness is an 8-ft long molded 7-way. I then recommend using a junction box like part # 38656. You would mount this on your trailer and then run your # H20046 wiring into the box. You can...
    view full answer...




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