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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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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 etrailer.com or call 800-298-1624 for expert service.
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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.


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 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   (697 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:

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.



- H20046
by:

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.



- 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:

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.



- H20046
by:

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



- 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:

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


Comments
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


- H20046
by:

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.



- H20046
by:

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.



- H20046
by:

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



- H20046
by:

Just like a Factory harness



- 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.


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


- H20046
by:

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



- H20046
by:

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



- 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:

I ordered this for my husband. He replaced the worn wiring on our fifth wheel. It worked out great.



- H20046
by:

Great company, fast shipping and they will call u if there is a problem.



- 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:

Perfect for connecting the tail lights from my RV to my car on the car dolly.



- 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:

easy as falling off a log, except now i found a few wires to the lights that are in need of replacements



- 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:

When my original 7-way failed, I searched around and decided that the Hopkins 7-way was the best product for me. It is well built, and the cable diameter was larger than my original. In addition, it conforms to the SAE wiring code. Which was great, because I mapped out my original pin/color configuration and compared it to the Hopkins are they were identical. This made connections with my existing wiring a whole lot easier.



- 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


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Show More Reviews

Ask the Experts about this Hopkins Trailer Wiring



  • 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...
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  • 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...
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  • 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
  • Is There More than One Wiring Color Code Pin Out for 7-Ways on Gooseneck Trailer
    There are two wiring codes that typically get used for 7-way connectors and the only difference is the color of the wires and not the actual pin out. I attached a picture that shows the two common styles. If your trailer uses one style and the connector another you can use the diagram to see what would go where. The other option is to use a jumper wire from a vehicle battery to apply to each wire (not white as that's ground and would spark) to see what lights up/activates and wire accordingly...
    view full answer...
    Image 1 for
  • Wiring a 7-Way to a Trailer with a 6-Way that Uses Non Standard Colors
    Unfortunately not all trailer manufacturers will use a standard wiring color code but we still can help you determine what to do with the wires of your trailer. First we need to identify what all of the functions of your wires are. To do this you'll need to use a jumper wire from a vehicle battery to all of the wires to watch what circuit illuminates on the trailer and then wire them to the new 7-way using the diagram I attached. The brake circuit won't illuminate anything but you should...
    view full answer...
    Image 1 for
  • Troubleshooting Running Lights Not Working on New 5th Wheel Trailer With Headlights On
    When the headlights being switched on cause other lighting functions to quit working we have found this to either be the result of a bad ground or too many lights on the trailer. Since it sounds like you have had a normal towing experience until recently it is probably a bad ground. Start off by verifying that both your tow vehicle and 5th wheel trailer connectors are clean and free of any corrosion or debris. Once those are clean we can move on to finding the issue with the ground but...
    view full answer...
  • Help Determining Wire Colors of Trailer Wiring for Installing New 7-Way
    Most likely some of the colors of the wires in your picture would match up to the # H20046 your best option would be to take a jumper wire from a 12 volt vehicle battery and put voltage on each wire to determine it's function and then wire accordingly. I attached a chart that has the wire color functions listed for this connector for you to check out as well.
    view full answer...
    Image 1 for Image 2 for
  • Wire Color Functions on Hopkins 7-Way RV Style Connector # H20046
    On the Hopkins 7-Way RV Style Connector # H20046 the wire functions are as follows: White Wire - Ground Red Wire - Left Turn and Brake Brown Wire - Right Turn and Brake Green Wire - Tail Lights Blue Wire - Brake Power Black Wire - 12V Power Yellow Wire - Aux/Reverse
    view full answer...
  • Troubleshooting Trailer Wiring Where Blinkers are Wired Backwards
    To fix your blinker problem you need to just switch the left and right turn signal wires of the trailer wiring and you'll have them corrected. These two circuits are found in the 9:00 and 3:00 position of the connector. If you have an extra wire that is red that you don't know where it goes it most likely is the aux cable which would connect to typically a purple wire of a 7-way. Sometimes this is also yellow.
    view full answer...
    Image 1 for
  • Brake Lights On Trailer Do Not Work with Tail Lights On
    I have attached the functions of the Hopkins 7-Way RV Style Connector with Molded Cable part # H20046 for you below however, if you are having issues with certain lights not working while others are turned on then I can almost guarantee you have a ground problem. In order to fix this I recommend you run the ground for each light up to the main ground for the trailer connector. If you have already done this then remove the ground, sand down the surface, and then reattach with new hardware....
    view full answer...
  • Wiring Trailer Using Wishbone Wiring Harness
    You're almost there! What you're describing is known as a wishbone harness. The running lamp circuit is split with one leg running down the driver side, the other running down the passenger. You'd join these two wires to the brown running light wire from the trailer connector. The brown/yellow is ran down the driver side and the brown/green is run down the drivers side, so it sounds like you have that backwards. The white ground wire from the trailer connector will need to be grounded...
    view full answer...
  • Wiring Up Trailer 7-Way that Uses Non-Standard Wiring Colors
    Unfortunately not all people will use the standard wiring colors when wiring up a trailer connector. This happens pretty frequently and the solution is to first determine what the wiring is and then wire by function according to the attached diagram. So to do this on a trailer you have to take a jumper wire from a 12 volt battery positive post and apply voltage to all of the pins to see what they activate. You might graze the pins first as the ground circuit will spark. Most likely this...
    view full answer...
    Image 1 for
  • Right and Left Turns Signals Will Not Illuminate On Trailer
    It sounds like you have a classic ground issue if the rear right and left turn signal/brake lights are not operating properly. You want to make sure the grounds of the trailer wiring are attached to a clean bare metal surface free or paint or corrosion. If all of your grounds are okay, It is a good idea to check the make sure the wiring harness have a good secure connection with one another. It is common for the turn signals to stop working if a set of connectors are not properly seated....
    view full answer...
  • Troubleshooting 5th Wheel Right Turn Signal Working Without Being Hooked up to Tow Vehicle
    If your right turn circuit is showing power when your 5th wheel isn't connected to your tow vehicle it sounds like you have some circuits that are crossing over. Try disconnecting whatever power source you have on your 5th wheel whether it is being connected to the campsite power or a battery on your trailer and you should see the power disappear. If this is the case then you need to inspect the wiring for your right turn signal and look for where it may be receiving power. This would...
    view full answer...
  • Troubleshooting Trailer Wiring Running Light that Wants to Stay On When Connected to Tow Vehicle
    Something might got miss-wired most likely when you replaced the old 7-way with the part # H20046. Since there are two different color codes for 7-way trailer wiring this isn't super rare. Check out the diagram I attached that shows how the two styles get wired. This connector uses the RV Standard style in the center pic. It's also possible your running light circuit is somehow shorted to the 12 volt power circuit as well. Which isn't hard to do since the pins are right next to each other...
    view full answer...
    Image 1 for
  • Could Additional 7-Way be Ran to Rear of Travel Trailer by Wiring it to Junction Box
    Sounds like you are wanting to run an additional 7-way to the rear of your trailer by having a 7-way with lead like part # H20046 also wired to the junction box. This technically would work fine. This harness is 8 feet long.
    view full answer...
  • Will Trailer Lighting Circuit Still Work with 7-Way if Brake Controller isn't Used
    Yes, the lighting functions of a trailer 7-way will be fully functional regardless of if a brake controller is installed/functional. The circuits are totally separate. There are many people who use 7-way trailer wiring setups without a brake controller and lighting all works fine.
    view full answer...
  • How to Test to Determine Unknown Wire Color Functions of Trailer Wiring
    Orange and gray are not standard trailer wiring colors so you'll need to do some testing to verify what those circuits carry. What you'll need to do is use a jumper wire from the positive pin of a 12 volt car battery to apply voltage to all of the wires to see which trailer circuits apply. The one that sparks when the connection is touched is the ground. For a new 7-way though we have the # H20046 which I attached a chart that shows how this gets wired as well by color.
    view full answer...
    Image 1 for
  • How to Identify Ground Circuit of 7-Way Trailer Wiring That Uses Non-Standard Colors
    If you check out the diagram I attached for a trailer 7-way you'll see that the pin in the 7:00 position should be the ground. Since your wiring uses non-standard colors this would be the easiest way to identify it.
    view full answer...
    Image 1 for
  • Where Does Yellow Wire of Trailer Wiring Connect to on 7-Way Wiring
    I attached a picture for you to use as a guide for wiring in your trailer's 4-way wiring to a 7-way socket connector. The yellow wire is the left turn/stop circuit that you have out of the connector.
    view full answer...
    Image 1 for Image 2 for
  • Are 7-Way Trailer Harnesses Installed without Being Fully Functional
    I wouldn't say that's standard practice. There are many times though that people will install a 7-way and will only activate the circuits that are needed and leave off ones that aren't. If the trailer doesn't have brakes they'll leave that circuit open or if there's no need for a 12 volt accessory or reverse light circuit. If your trailer has brakes and they knew you wanted to install a 7-way to activate them I'd say they aren't being totally honest if they only wired up the lights.
    view full answer...
    Image 1 for Image 2 for
  • What are Two Standard 7-Way Wiring Color Diagrams
    For trailer 7-ways there are two wiring color standards that are commonly seen. I attached a picture that shows the difference. Typically red and black are not interchanged though. Sometimes red and yellow are for left turn/stop signal. That said not all people will use standard trailer wiring colors so you might have non standard colors used.
    view full answer...
    Image 1 for
  • Wire Color Functions on Hopkins 20146 or 20046 7-Way Harness
    If you are referring to the wire colors on your Hopkins 20146 7-Way trailer harness, which has the same setup as our Hopkins # H20046, then you are absolutely correct. The yellow wire is listed as the aux function, which is typically used for reverse/backup lights if the trailer is equipped with them or to trigger that reverse lockout solenoid that you mentioned on a boat trailer. All the other functions you listed are correct as well. I have attached a short install video that you might...
    view full answer...
  • Does 8th Wire of Truck's 7-Way Wiring that Carries Brake Signal Need to Be Used
    As long as all of the trailer lighting functions are active on your trailer and the brake controller is functioning like it should then you can tape up the extra wire and not use it. It almost sounds like it could be for a third brake light for a camper shell as older Chevy trucks sometimes had a circuit for that pre-ran.
    view full answer...


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