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7-Way Molded Trailer Wire Connector, 4' Long

7-Way Molded Trailer Wire Connector, 4' Long

Item # H20043
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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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Hopkins Wiring - H20043

  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • Plug and Lead
  • Hopkins
  • 0 - 5 Feet Long


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






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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   (133 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:

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:

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:

i added it on a trailer i was having problem with the old 4 prong type it works so much better 734807



- H20043
by:

All is okay however the cord that I received measures 43" from end to end. In my situation It would sure have been nice to have extra instead of the piece being a bit short. Oh well, if I wouldn't have wrecked the original one it wouldn't be an issue. My bad. 733948



- H20043
by:

Worked as expected. 717796



- H20043
by:

I have ordered several items from etrailer and have always been satisfied with the product and service. 716898



- H20043
by:

Order received as ordered. Michelle was great contacting me letting me know a part that was ordered would be delayed and found an in stock replacement part. 717164



- H20043
by:

Looks like a good replacement part, as good or perhaps better than what was originally supplied 711282



- H20043
by:

Installed this on my boat trailer a year ago. Works great, high quality, couldn't ask for any more. 707381



- H20043
by:

Product shipped super fast and arrived one day earlier than expected! Good quality product, too, only concern is that the white 10 ga wire is not finely stranded like the smaller wires. It is stranded to be sure, just the strands are fewer and larger than expected. It should still last a long time. 706072



- H20043
by:

Works like it should! 703161



- H20043
by:

Cord worked flawlessly. No complaints w hatsoever. 702711



- H20043
by:

Cord worked flawlessly. No complaints w hatsoever. 702710



- H20043
by:

Just what I needed. Great product!! 681562



- H20043
by:

We got this item delivered in less than a week and for $20 cheaper than we could have walked into a store to get it. It is a good quality product and meets our needs. No issues at all with the product or shipper. I will definitely being using etrailer in the future. 663975



- 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


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133
Show More Reviews

Ask the Experts about this Hopkins Wiring

  • Rewiring Boat Trailer for 7-Way to Use LED Lights
    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):...
    view full answer...
  • Is the Yellow Wire For the Reverse Lights On the 7-Way Molded Trailer Wire Connector H20043
    In regards to the 7-Way Molded Trailer Wire Connector part # H20043, the yellow wire is for the reverse light circuit yes. This should then align with the pin responsible for the reverse light circuit on your vehicle. The terminology used for "AUX" is the same as the reverse light circuit. Please note, if you are rewiring a trailer I highly recommend you use a junction box, the Trailer Wiring Junction Box part # 3375601101 to keep everything organized. We also have the Trailer Wiring...
    view full answer...
  • 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...
    view full answer...
  • What Parts Are Needed To Add Brakes To A 1997 Coleman Destiny Pop-Up Camper
    To add electric brakes to the Coleman Destiny Bayport pop-up camper, you will need a few pieces of information. You will will need to know the weight capacity of the axle, bolt pattern of the wheels, and whether or not it has brake flanges already and their bolt pattern. If no brake flanges then you will have to either replace the axle with one that does or you can purchase brake flanges like Item # 4-34 and have a qualified welder weld them to the axle. After sorting out what...
    view full answer...
  • Replacement for Factory 7-Way Trailer Connector on 2001 GMC Sierra 2500HD
    To replace the 7-way on your 2001 GMC Sierra 2500HD I recommend the Reese Multi-Plug Wiring Harness for Factory Tow Package # 74682 because it is an easy plug-in design. All you need to do is plug it into the 7-way socket on your truck and it will work as a replacement. For a trailer connector I recommend the Hopkins 7-Way RV Style Connector with Molded Cable # H20046 which is 8 feet long. If you want something shorter there is also the 6 foot # H20044 or 4 foot # H20043. I have added...
    view full answer...
  • 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,...
    view full answer...
  • 7-Way Trailer Extension Harness for Use with Hitch Extender
    Yes we do and for this I recommend the TorkLift Wiring Harness Extension part # TLW6036 which offers a 36"(3') extension between your trailer and vehicle. You would then want to add a combination of part # 18140 and part # PK12711U to secure the female side of the 7-way to the hitch extender. By the time you add the 7-way extension harness and mounting brackets it would be much more cost effective to just cut off the 7-way connector on your trailer and add a (48") 4' extension plug to...
    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.
    view full answer...
  • Adding a 7-Way Trailer Connector to a Trailer
    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...
    view full answer...
  • 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...
    view full answer...
  • Parts Needed to Re-Wire 18 Foot Car Hauler Trailer with 7-Way Connector
    To re-wire your 18 foot car hauler with electric brakes on one axle, I recommend using a wiring junction box like # 38656 in order to make the connections from the lights and brakes. Then for a 7-way trailer plug, you can use the Hopkins # H20046. This connector has an 8 foot lead. The shorter 6 foot # H20044 or 4 foot # H20043 trailer connectors are also available. I recommend using a circuit tester like # 40376 to determine the functions for any wires that are not known, as just using...
    view full answer...
  • Recommended 7-Way Round Trailer Connector And Wiring
    If you are looking for a round connector with a 7-way blade I recommend part # H20046. This is a trailer end connector with 8 ft molded wire. For a 7-way with 6 ft of molded wire you need part # H20044, and for the connector with 4 ft of molded wiring you need part # H20043. for a connector with a coiled wire I recommend the WesBarg 7-Way, RV-Style Connector, part # WG54006-043. This has 6 ft of coiled wire attached. If you are looking for a 7-way with round pins we do not offer a 7-way...
    view full answer...
  • 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.
    view full answer...
  • 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...
    view full answer...
  • Parts Needed to Add Electric Brakes to Trailer with 3,500 Pound Axles
    To answer your last question first the trailer has been towed with no brakes so even if you only add brakes to one axle it will be an improvement. Based on your measurements I'm thinking your inner bearings are # L68149 (1.378 inch diameter) and outer bearings are # L44649 (1.063 inch diameter). Very close to what you have but you'll want to double check like you mentioned. If these bearings are correct the hub and drum assembly for your trailer is # AKHD-545-35-K. If they're not...
    view full answer...
  • Recommended Products Needed When Building A Trailer To Use For Camping.
    As long as you know you will need to stay within the weight capacity of the axle-less system you are looking at, the Timbren system is a great option. I attached a chart that you can use that explains how to adjust the axle on a trailer to make sure you have the correct tongue weight. As the article explains it can be adjusted depending on the tongue weight you get. Since you said you are going to be traveling off-road occasionally you may be interested in the Timbren Heavy-Duty Axle-Less...
    view full answer...
  • Color Code Functions of Hopkins 7-Way Trailer Wiring Harness
    The Hopkins # H20043 uses the following wire coloring: 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 - 12 volt (hot lead) Yellow Wire - Aux. I recommend wiring your trailer by function and not color. If there is a circuit you don't need for any reason it doesn't have to be connected.
    view full answer...
  • Availability of Wiring Adapter to Convert 12-Pin NATO Trailer Connector to 7-Way Blade Style
    We do not offer any adapters to convert a 12-pin military trailer connector to a 7-way RV-style plug like that on part # H20043 but we can help you gather the parts you'll need to wire in a new trailer plug to match that on your pickup. We can also offer you an easier alternative. To re-wire the trailer conector you'll need a wiring junction box # 38656, a trailer-side plug like the 4-foot # H20043 (or longer versions such as 6-foot # H20044 or 8-foot # H20046) and ring terminals like...
    view full answer...
  • How to Make 7-Way to 6-Way Square Adapter for Jayco Camper
    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.
    view full answer...
  • Short Circuit in Trailer Connector Melted Wiring and Causes Trailer Brakes to Lock Up
    On a 7-Way trailer connector there should not be a 24 volt wire. But wires could come loose and make contact with other wires inside the connector and cause a short which is what sounds like happened. I recommend replacing the trailer side 7-Way with # H20043 which also has a 4-foot lead of wires in case the problem exists further back in the wiring. On this harness the white wire is ground, red is left turn signal/brake light, brown is right turn/brake light, green is tail lights, blue...
    view full answer...
  • Converting Trailer from 5-Way Connector to a 7-Way by Function
    I've linked a help article that will give you the common color coding but on your trailer I wouldn't go by it. Even if they are correct you just never know so I suggest testing it. To test it cut off the 5-way connector that's on there and connect each wire to a 12-volt power source and see what functions. Then use a 7-way connector like the Hopkins # H20043 and connect the function to the correct leads. Even the Hopkins does not use the traditional color coding. Instead it uses...
    view full answer...
  • Parts Needed to Make Shorter 7-Way Male to 7-Way Male Adapter
    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.
    view full answer...
  • Parts Needed to Install Brake Controller in a 2008 Kia Sedona
    I can help you with the brake controller for your 2008 Kia Sedona, but since we have a pretty limited selection of axles at this time your best option is going to be to find a shop local to you that can order you in the exact size brake axle you would need. You are going to need to know your current axles hub face to hub face dimension, the distance between the spring seats on center, and the capacity needed. Since you already have a 4-way at the rear of your vehicle all you would need...
    view full answer...
  • Will Hopkins 7-Way Molded Trailer Wire Connector Work With Trailer Connector On 2013 Toyota Tundra
    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.
    view full answer...
  • How to Power Utility Light In Trailer That Has 4-Way Connector
    You are on the right track. You will need to convert the 4-way to a 7-way so that you can tap into the 12 volt accessory circuit of the connector to power the utility light. For a 7-way with a 4 foot long section of wire you would want the part # H20043. Currently your interior light is ran to the running lights circuit of the 4-way wiring. You would need to run the light to the black wire of the new 7-way as that is for the 12 volt circuit. I attached a chart that shows how the 7-way...
    view full answer...
  • 7-Way Recommendation for 2001 Coachman Clipper Pop Up
    A standard 7-way is going to work just fine on your trailer. That converter circuit will be for a 12 volt power source which a 7-way is going to have on the 1:00 pin. For the trailer side you would want the part # H20043 and you would be good to go.
    view full answer...
  • Replacement 7-Way Recommendation for 7-Way on Trailer With Chipped Pin
    The chip in the picture you sent in is why your right turn and brake circuit aren't functioning. It's time to replace the 7-way connector. We have the part # H20043 which is a 4 foot long section. Or we have the part # H20046 which is an 8 foot long section. Or the best solution would be to use the 7-way upgrade kit part # ET7WK which comes with a 7-way, a junction box to make installing the 7-way easier and then also the needed connectors and conduit. It basically is one part number...
    view full answer...
  • Replacement 7-Way Recommendation for a 2006 Chevy Trailblazer
    For a replacement 7-way for your 2006 Chevy Trailblazer you would want the Tow Ready 7-way part # 74682. This also has a 4-way built into the side of it. You would just need to remove the harness from the back of your current 7-way and then plug it into the round connector of this harness. For a replacement 7-way for your trailer you would want the part # H20043. Since trailer wiring colors can vary from vehicle to vehicle your best option would be to use a jumper cable from a car battery...
    view full answer...

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Info for this part was:

Installed by:
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Installed by:
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Expert Research:
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Video Edited:
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Updated by:
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