7-Way Molded Trailer Wire Connector, 4' Long

7-Way Molded Trailer Wire Connector, 4' Long

Item # H20043

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7-Way Molded Trailer Wire Connector, 4' Long Trailer End Connector H20043
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Product Images

In Use/Installed

Customer Photos


  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • Plug and Lead
  • Hopkins
  • 4 Feet Long
Lowest Prices for the best wiring from Hopkins. 7-Way Molded Trailer Wire Connector, 4' Long part number H20043 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


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  • Reviews (120)
  • Q & A (51)
  • Videos (2)
  • Photos
  • Why etrailer?

Hopkins Wiring - H20043


Trailer Connector RV Style 7-Way Blade with 4' lead

  • Pre-wired 7-Way Trailer Connector
  • Measures 4 feet long including connector
  • Wire gauges:
    • 14 Gauge - red, brown, green, and yellow
    • 12 Gauge - Blue
    • 10 Gauge - White and Black


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. -

Hopkins # 20044




20043 7-Way Molded Trailer Wire Connector, 4' Long






California residents: click here


Video of 7-Way Molded Trailer Wire Connector, 4' Long


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Wiring - Trailer Connectors - H20043 Review


Customer Reviews

7-Way Molded Trailer Wire Connector, 4' Long - H20043

Average Customer Rating:  4.8 out of 5 stars   (120 Customer Reviews)


- H20043
by:

Solved my problem. I was switching out the my boat plug wiring. This product was perfect for my situation. Excellent quality. Very easy to rewire. 523152



- H20043
by:

While I have not hooked this up to my boat trailer yet, I can say the cord and plug are made of high grade rubber and should last a very long time. Looking forward to installing next weekend! 542263



- H20043
by:

Exactly what I needed, and very fast delivery. Thanks etrailer! 175247


Comments

Very well. No issues with this products

Clark S - 02/18/2016

16821

- H20043
by:

Used this on my snowmobile trailer. The cable outer jacket is to rigid (Not flexible). Gets worse in colder temps. Don't recommend it for cold use. Picture is in garage at 53F. Cable is so stiff it won't fall on the floor. 453419



- H20043
by:

I recently purchased a 7-Way Molded Trailer Wire Connector, 4' Long Item # H20043 for my boat trailer. The connector is very well made and is very easy to install. The video describing the wiring is extremely helpful. I ordered it using standard UPS shipping and received it in 3 days. I have been purchasing items from etrailer for several years and I have been 100% satisfied with every purchase. Not a company out there that can beat their parts inventory, prices and support. Gregg 453282



- H20043
by:

Good quality as expected - great job etrailer! One item was delayed which slowed delivery of entire order, but etrailer provided excellent communication. 656146



- H20043
by:

Great product. 650458



- H20043
by:

The dog chewed up the harness on my tent trailer. I haven’t put the new one on yet but it appears to be good quality. 644844



- H20043
by:

Outstanding value. Really well made quality product. Can't wait for the weather to clear and warm so I can install. Highly recommend! 644618



- H20043
by:

Well made product 644320



- H20043
by:

Very good product fast shipping 643867



- H20043
by:

Shipped fast very pleased with service 639853



- H20043
by:

Installed and working 634376



- H20043
by:

Excellent customer service and very knowledgeable. Helped solve a difficult problem for us and got the product out the same afternoon. On scale of 1 to 10, give a 20! 608961



- H20043
by:

Exactly as described and fastest delivery anyone could ask for. Thank you etrailer. 606962



- H20043
by:

Nice product 600628



- H20043
by:

Delivery was great and the customer service is excellent 596347



- H20043
by:

should fix my problem perfectly 594107



- H20043
by:

I will always use etrailer for my parts/they have everything/they respond to your questions and i received what i ordered this is the way to do business thankyou 585470



- H20043
by:

just what I needed to hook up my electric brakes. 567929



- H20043
by:

It was exactly what I wanted to hook my boat up with backup lights on it. I received it in perfect time and safely packaged. I will keep ordering all my trailer parts from etrailer. 563215



- H20043
by:

Well made product 550773



- H20043
by:

No problems, worked great! 526569



- H20043
by:

Every thing fit just right. Well made and is just what I needed to make the trailer correct for towing. 523398



- H20043
by:

I recently purchased this connector for my trailer and received it on time with notification of shipment and tracking info. The connector looks as advertised, great experience with the website. Will be buying more products from this company. 515275



- H20043
by:

This was to replace a cord that ended up dragging, so it was spliced in and seems to be working well. Plug end is solid and works well. 494971



- H20043
by:

Great quality. 490675



- H20043
by:

Nice product at a good price. Fast delivery. Really nice doing business with Etrailer. I highly recommend. 482477



- H20043
by:

Harness is still working fine. 479151


Comments

Good

Calvitt - 02/27/2019

49920

- H20043
by:

looks very good. I have not installed yet but soon. appears as good as original. 470630


Comments

just fine

Garry - 01/27/2019

48955

- H20043
by:

The wiring harness is fine. I use it everyday and it's made of durable material. 469008


Comments

All good

-- Heather A - 01/24/2019

48830

- H20043
by:

as described, super delivery time 466850



- H20043
by:

The colors of this plug do not match up with the standard wiring for trailers. I did not find this out until after I wired up my trailer,which caused me some blown fuses. I probably should have check them first. 462861



- H20043
by:

All items are of good quality. Very well packaged. Shipping was fast. Like Arnold said " I WILL BE BAAAACK!" 457831



- H20043
by:

Exactly what I needed.....quick delivery....great price!!!! 448934



- H20043
by:

Outstanding. Going to be a bit before I rewire everything but all looks great and delivery was fast. Couldn't ask for better service. 448731



- H20043
by:

This on-store is becoming my “go to “ for all my trailer parts. They offer excellent products, great pricing and fast shipping! They have been able to supply all of my variety of needs!! 447074



- H20043
by:

I ordered a pigtail and LED lightbar for my car trailer. Great products, just what I needed, shipped promptly. I called their sales dept with some questions prior to placing the order and got "over and above " help. This is the second order I placed with them, both were very good experiences. 429673



- H20043
by:

Looks and feels like a quality product. It works. Since I have it for one week only, no experience on long term use. 421307


Comments

Hi, Still using it and Im happy with it.

HH - 08/17/2018

42510

- H20043
by:

Excellent product, good quality. 418764



- H20043
by:

Have not had time to install, looks like it will fit the bill. Thanks Ace 413902



- H20043
by:

another great product delivered on time, always a go to when you need things for towing 413281


Comments

I have lost track of all of the items I have purchased from etrailer over the past few years, but I do know that everything I have received has arrived generally pretty quick and everything has been great quality. I just recently bought another brake controller for another pickup I just bought, chose the same one because my other one is still working well and I think the price was even still pretty close to what it was a year ago. Thanks for the great products, fast shipping, and good prices, etrailer is my go to for towing, trailers, and truck needs to tow.

Bill - 08/01/2018

41784

- H20043
by:

Good product 402257



- H20043
by:

High quality product, much better protection from rocks and debris than alternatives. People who look at my wiring assume it is factory installed. 402109



- H20043
by:

Well built and heavy duty but the wires for the turn signals and running lights were put in the wrong terminals for the collar coding. I did not have this problem with the last one I ordered. After swapping the wire collars on thows three it workes fine. 401018



- H20043
by:

Works fine so far. One year and counting. This may seem like a simple enough product for which you would ask, "what could go wrong?" BUT, I have had these heat up and melt. This one, so far, so good. No melting, no shorting, no heating up. 391453



- H20043
by:

Just had the wiring harness installed with the recommended junction box A friend installed it for me an said it was so simple and he like the setup so much he is going to get a couple more to convert his personal trailers. And I am very happy with the installation as well Thanks Shell 390746



- H20043
by:

Everything was as sold. Parts still going strong. Etrailer was a good company to do business with. 387336



- H20043
by:

Nice cable. Flexible, great insulation, and fits in the truck receptacle better than any other I've owned. 386449



- H20043
by:

Complete package was new and is perfect for my trailer 380807


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120
Show More Reviews

Ask the Experts about this Hopkins Wiring
Do you have a question about this Wiring?


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  • There are a number of things you will need if you want to re-wire your boat trailer to use LED lights and you should start with the Epicord 7-Way Molded Trailer Plug with Junction Box # 277-000141. Keep in mind you will also need Ring Terminals # 44-5310A and Loom Clamps # A0500 The box is color coded like this: - 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):...
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  • Installing a Trailer Battery Charge Line from Vehicle Trailer Connector
  • To charge your trailer battery when you look at the 7-way trailer-side connector the 11 o'clock pin will mate up to your 12V signal from your vehicle. With most trailer connectors like # H20043 this will be the black wire. That black wire simply connects using 10 gauge butt connector like # DW05745-5 to 10 gauge wire sold by the foot # 10-1-1 which will connect to your trailer battery positive terminal. As you stated the negative terminal of the trailer battery will be connected to the...
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  • Connecting Ignition Switched Power From 2015 Toyota Prius v to Enclosed Trailer
  • You will need to use a circuit tester like # PTW2979 to find a wire in your 2015 Toyota Prius v that is hot only when you use your key (ignition switched power). When you do that you can simply wire in the Battery Isolation Solenoid # TR118665, which should be wired like in the accompanying diagram with 10 gauge wire # 10-1-1. I have added a link to a video review of the solenoid for you to check out.
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  • Wiring Harness for Flat Towing 2004 Jeep Wrangler
  • We can help you get set for flat towing your 2004 Jeep Wrangler with your motorhome but we do not offer any wiring adapters for an 8-prong motorhome socket. Most motorhomes these days use a 7-way blade style connector like the one shown in the linked photo. You can convert the MH to a 7-way using a part like # 37185 or # PK12-707E. You'll just need to match up the functions; a circuit tester like # 40376 makes this easier. We do have a plug-in flat towing harness for your 2004 Wrangler,...
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  • So you have added a 7-Way trailer connector to your truck and now you want to add one to the trailer. There are a couple of options that you could employ. First, you could just use a 7-Way trailer connector only such as # PK12706, no wiring, and attach the wires from the old connector and the new wires as needed. Or you could use one that has a wire lead coming out of the back of it such as # H20043 (wire functions listed on its product page). You could also use # ET7WK which comes...
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  • To make an adapter like you are looking for would require the part # H20043 which is a 7-way with 4 feet of wires that you could then wire to a 7-way male like part # A7WCB. The # H20043 could be shortened to whatever length you needed as well. I attached a chart that shows the wiring colors for the # H20043 plus a diagram for a typical 7-way to help you wire up the adapter.
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  • 7-Way Male to 7-Way Male Adapter Recommendation that is 4 Feet Long
  • To make an adapter like you are looking for would require the part # H20043 which is a 7-way with 4 feet of wires that you could then wire to a 7-way male like part # A7WCB. I attached a chart that shows the wiring colors for the # H20043 plus a diagram for a typical 7-way to help you wire up the adapter.
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  • Parts Needed to Re-Wire Car Hauler Trailer Lights and Brakes
  • We can help you with selecting parts to re-wire your trailer's lights and brakes. Trailer size affects the number and types of lights required to be DOT-compliant. I linked for you an article that covers the lighting requirements for trailers of various sizes. This will help you determine what is required for your specific trailer. For lighting you might want to consider one of our complete lighting kits. Kit # TL29BK uses standard incandescent light bulbs and kit # TLL9RK uses high-efficiency...
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  • Wiring Needed to Flat Tow a 2016 Jeep Wrangler
  • It sounds like you've created your own umbilical to go from the 7-way on your RV to a 7-way on your Jeep. The Hopkins connector # H20043 is 4 feet long, which isn't going to be long enough to bridge the gap of space for flat towing. You're going to need at least 6 foot umbilical. For a 6 foot 7-way molded cable use # H20044. We typically don't see 7-ways on the front of vehicles, for a great 7-way to 6-way umbilical with a 6-way (which is most common) connecter and mounting bracket I...
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  • The Hopkins 7-Way Molded Trailer Wire Connector # H20043 is designed to be installed on a trailer and is compatible with the 7-way connector on your 2013 Tundra. When installing this harness I recommend using a wiring junction box like part # 38656. I have attached a link to an installation video for the junction box and also a helpful article on wiring you can check out. You want to make sure you note what the function is for each wire when you are installing the harness on your trailer.
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Info for this part was:

Installed by:
Joe V
Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Video Edited:
Jacob T
Expert Research:
Adam R
Video by:
Kathleen M
Photos by:
Amber A
Expert Research:
Jeffrey L
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Updated by:
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Updated by:
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