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Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat with Nite-Glow

Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat with Nite-Glow

Item # HM47075
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Our Price: $49.45
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Shipping Weight: 1.08 lbs
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This heavy-duty, coiled cable adapter is compatible with a 7-way RV blade trailer socket on the vehicle and adapts it to work with a 4-way flat or 5-way flat connector on the trailer. Lowest Prices for the best trailer wiring from Hopkins. Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat with Nite-Glow part number HM47075 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (52)
  • Q & A (0)
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Hopkins Trailer Wiring - HM47075

  • Wiring Adapters
  • Multi-Function Adapter
  • 4 Flat
  • 5 Flat
  • Plug and Lead
  • 0 - 5 Feet Long
  • 7 Round - Blade
  • Hopkins

This heavy-duty, coiled cable adapter is compatible with a 7-way RV blade trailer socket on the vehicle and adapts it to work with a 4-way flat or 5-way flat connector on the trailer.


  • Heavy-duty, coiled cable
    • Weatherproof jacketing
  • Easy-grip connectors
  • Tin-plated terminals for corrosion resistance
  • Nite-Glow illuminates on taillight function to verify continuity


  • 3' Cable when stretched
  • 7-Way RV blade to 5-wire flat connector
  • 18 Gauge wire: stop/tail/turn
  • 16 Gauge wire: ground/reverse
  • 3-Year limited warranty

Note: Works with a 4-way flat connector plug on your vehicle as long as it does not have any unusual housing that might prevent the connection from being made.

Flex Coil Adapters provide increased durability and the additional length that may be necessary to reach between the tow vehicle's socket and the trailer/towed vehicle's plug.

47075 Hopkins Trailer Connector Coiled Adapter, 7-Way (RV Blade) to 5-Way and 4-Way Flat

California residents: click here

Customer Reviews

Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat with Nite-Glow - HM47075

Average Customer Rating:  4.9 out of 5 stars   (52 Customer Reviews)

This heavy-duty, coiled cable adapter is compatible with a 7-way RV blade trailer socket on the vehicle and adapts it to work with a 4-way flat or 5-way flat connector on the trailer.


This is a good connector to have if you pull various trailers with your truck. The coil gives a little extra in the event that the trailer pigtail is short. Second one I have purchased.

No problems.
Neill - 05/08/2022


Great product. We used it with our Toyota 4 runner to tow our boat. Since the Toyota 4 runner electrical plug in is so far behind the rear bumper, we needed this extension in order for there not to be any issues with the wiring for boat trailer to become disconnected from being too short. The cord being coiled allows the extension to be as long as needed without possibly being drug on the ground.

Good. No issues.
Sandi - 06/20/2021


Great wiring harness. Works perfect and at a good price. etrailer shipped quickly. Will buy from them again when the need arises

Product still works great
Jamie F - 05/06/2021


Excellent quality. but after adding 4" heightener to level the tow bars to the Jeep, which added 6.5 inches in length it was too short and not useable.

I do have a solution for you. I would recommend part # 787196
Wesbar Coiled Adapter - 7-Way RV to 4-Way or 5-Way flat - 8' Long
which can extend 8 feet.
-- Etrailer Expert Jenny N - 11/03/2021


Only received 1 tail light no packing list is the other twilight on back order

Customer Service will contact you.
-- Etrailer Expert Sierra K - 12/02/2021


sales person was very knowledgeable and helpful


Bought this wiring cable last year, I love it still. I can tell when its connected, the coils keep it from dragging the road. Great product!

Still holding up great, always happy with etrailer products
William A - 04/28/2021


This seems to be super high quality with thick cable and great end connections. Fit the 7 prong outlet on my 2011 4Runner perfectly. It'll be connecting to my new boat trailer. Super fast shipping and correspondence from

Its still holding up great. It generates a lot of interest and other boaters/trailer haulers are impressed by it.
Patrick - 08/28/2016


Perfect length for my 5th generation 4runner that has the cable connector far away from the hitch.

Still working great a year later.
Bryan - 05/29/2014


Bought this adapter because my "new to me" Ford F150 had a 7 way connection and my boat trailer had a 5 way flat...

Product arrived just as advertised, appears to be high quality, and took about 5 seconds to get my boat trailer and new truck hooked up.

All of the lights on the trailer worked great, and I didn't have to run a wire from the reverse light on my truck ( which you would need to do if going from a 4 way flat to a 5 way flat in order to disengage the surge brake on the trailer)... Very good product, fast shipping! Thanks again guys for the help!



Just what I needed! Works great, easy to store. 7 way to 4 way trailer connector. The nite glow makes connections even easier.


Great Product,excellent service. Will order from in the future.

Great wish I had it years ago.I dont have to worry about the plug pulling out when I go around a corner.
Bill A - 10/27/2014


This is a robust connector and just the right length -- not so long that it drags on the ground and long enough to keep from pulling trailer wiring during turns. It is a heavy duty connector with heavy insulation that should wear a long time.


The wiring connector has held up well. It has been on the trailer for a year and functions like the day I bought it. This is is great product.


Very hig quality construction and desig n.


Needed a longer cord between my truck and boat trailer since I changed the length for the ball mount. This works perfectly with it and I can use it with my other ball mount of different lengths.


Well built. Fits nicely.


etrailer has some of the greatest customer service I have experienced in a long time , I ordered several things to outfit my toad and from start to finish they were a class company to work with .
New customer for life !


Ellen was outstanding. Very informative and knowledgable. I would recommend her advice and to all my friends. *


Heavy duty and the perfect length for my Toyota 4runner which has the 7 pin connector far from the hitch.


Product was exactly what I was looking for and was received when they said it would be here.


Needed a wring converter and couldnt figure out which one. Called etrailer and Karen found what I needed within a couple of minutes. It arrived on schedule and I used it today.


This is a high quality trailer cable from an American company. it is exactly what I was looking for and expected. etrailer was also very responsive and timely.


I'm replacing my old connector from my boat to my truck and this 7 way to 5 way flat is heavy duty enough to do the job and the flex coil keeps the added length from dragging the road.


I recieved my coiled 7-way to 5-way connector adapter 3 -days after ordering it. It is excellant quality. Expalnation and pictures where very helpful on the web site so it was easy shopping. I will always order my triler supplies from E Trailer.

Show More Reviews

See what our Experts say about this Hopkins Trailer Wiring

  • How Long is Hopkins Heavy-Duty Coiled 7-Way to 5/4-Way Adapter when Un-Stretched
    Yes, a 4-Pole can fit into a 5-Pole so this part will allow you to convert your 7-Way down to both a 5-Way and 4-Way. Un-stretched it measures approximately 22 inches.
    view full answer...
  • Length of the Hopkins Endurance, Flex-Coil Trailer Connector Adapter HM47075 Un-Stretched
    When un-stretched the Hopkins Wiring # HM47075 that you referenced measures 22 inches.
    view full answer...
  • Recommended 7 Way to 5 Way Adapter Plug for 2020 Nissan Pathfinder Towing Boat Trailer with 5 Way
    I recommend using the the Hopkins 7 way to 5 way adapter # HM47075. The adapter plugs into a 7-Way blade style on the truck and has a 5-Way flat at the back to plug in any trailer that uses a 5-Way flat.
    view full answer...
  • Can a 4-Way Flat Vehicle Connector Connect to a Hopkins, Trailer Adapter 7-Way to 5 or 4-Way Flat
    Yes, you can plug a 4-way flat plug into a Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 5-Way Flat or 4-Way Flat, part # HM47075, as long as the 4-way flat plug on your vehicle does not have any unusual housing that might prevent the connection from being made.
    view full answer...
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  • Recommended 7 Way to 5 Way Adapter for 2014 Ford F-250
    I have just the thing for you. Take a look at the Hopkins 7 way to 5 way adapter # HM47075. The adapter plugs into a 7-Way blade style on the truck and has a 5-Way flat at the back to plug in any trailer that uses a 5-Way flat. I have included a video review of this part for you to check out.
    view full answer...
    Image 1 for
  • 7-Way To 4-Way Adapter Recommendation For 2003 Hummer H2 Towing A Rented Trailer
    Since the owner's manual on your 2003 Hummer H2 states it has a universal 7-way connector on the back, we have an adapter that will work fine for you. I recommend the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter, part # HM47075. This connects to the 7-way on your Hummer and gives you a 4-way connector to connect the trailer to. As long as the 4-way connector on the trailer you are renting has the standard 4-way flat connector attached, using the # HM47075 should take care of your...
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  • What Is The Difference Between These Flex-Coiled Wire Adapters by Hopkins - # HM47025 And # HM47075
    These Hopkins wire adapters, Item # HM47025 and Item # HM47075, have similar functions. Both are heavy-duty, coiled cable with weatherproof jacketing. Both have easy-grip connectors and light up when connected. Both are 3 foot when stretched. Both adapt a 7-Way connector to work with a 4-Way or 5-Way flat connector on a trailer. One difference is that the The Hopkins Endurance Adapter, Item # HM47075, has a 3-year limited warranty. I have attached videos for you to check out.
    view full answer...
  • Recommended 7-Way to 5-Way or 4-Way Flat Adapter That Measures 3-Ft Long
    For a 7-Way to 5-Way or 4-Way Flat connector I recommend part # HM47075. This adapter will work with a 4-way or a 5-way and has Nite-Glow which lets you know you are connected and working. This has a coiled cable which measures 3-ft when stretched.
    view full answer...
  • Function of Center Pin on a 7-Way RV Blade Style Trailer Connector on a 2003 Toyota 4Runner
    No problem, I will be happy to help. The 7-Way you have is called a blade or RV style. The center pin will either be for reverse lights or auxiliary 12 volt power. If the trailer does not have reverse lights or does not need a second 12 volt circuit then it would not matter if the adapter had it or not. If the trailer has an electric reverse lockout feature, common on boat trailers with surge brakes, then you would need that center pin in the adapter and the center pole on the vehicle...
    view full answer...
    Image 1 for
  • Recommend Adapter To Connect 4-way of Lighting Kit to 7-Way on 2011 Tiffin RV
    To connect the 4-way from the Tail Light Wiring Kit # RM-155 on your vehicle to the 7-way on your 2011 Tiffin RV, you will need to use the Hopkins Coiled Trailer Connector Adapter # HM47075. This adapter will plug into the 7-way round connector on your RV and provide a 4 and 5-way plug on the other end. I have linked an FAQ on flat-towing that covers all the components you will need to safely flat-tow your 2007 Jeep Wrangler.
    view full answer...
  • 7-Way to 4-Way Adapter Recommendation for 2015 Chevy Suburban
    Yes, you would want the part # PK12716. This will plug right into your 7-way and will provide you with a 4-way connection for your trailer. I attached a review video for you to check out as well.
    view full answer...
  • Can 7-Way be Used for Lighting Kit with Separate Turn Signal and Stoplights
    If you have a 7-way it should have the reverse light circuit on the center pin. Now the brake light circuit will not be separated out from that but you can use the # C56196 wired to the wires of the 7-way to get the circuit isolated.
    view full answer...
  • Compatible Tow Dolly For A 2021 Kia Sorento
    The Demco Kar Kaddy X Tow Dolly w/ Disc Brakes - Tilt Bed Frame - 4,800lbs - Wide Tread # DM9713093 has ramps that will adjust to fit your 2021 Kia Sorento's tread width and comes with straps to secure it to the dolly. It has a 4-pin wiring harness so if your tow vehicle only has a 7-pin instead you can use the Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat with Nite-Glow Item # HM47075. Note: If your 2021 Kia Sorento is AWD you will have to have...
    view full answer...
  • Recommended 4-Way Flat Connector To A 7 Round Plug Adapter
    When it comes to a 4-way flat connector to a 7 round plug adapter I recommend The Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat with Nite-Glow # HM47075. This heavy-duty coiled cable has a weatherproof jacketing, has easy-grip connectors, and has tin-plated terminals for corrosion resistance. It has 18 gauge stop/tail/turn and has 16 gauge ground/reverse. I attached a review video link below.
    view full answer...
  • Recommended Wiring To Tow My 2022 Hyundai Santa Fe On A Tow Dolly
    When it comes to flat towing your 2022 Hyundai on a tow dolly, most of the trailer wiring is already included with the dolly. The Demco Kar Kaddy SS Tow Dolly with Disc Brakes - Foldable - 4,800 pounds # DM9713045 has a full LED DOT lighting package which includes brake, tail, and turn signal lights So you will not need the lights working on your Santa Fe. It also has the front fender marker lights, and the license plate marker lights and has a 4-flat trailer connector. Your RV will either...
    view full answer...
  • How Do I Wire a 2005 Toyota Tacoma for a Brake Controller and 7-Way
    This adapter will not provide the additional wiring needed for adding a brake controller. This product steps a 7-Way down to a 4/5-Way, not the reverse. What you need instead is a 7-Way Wiring kit like part # ETBC7. If the trailer connector you have on your Tacoma is the factory installed connector, it is actually a 4-Way connector. You will plug the 4-Way on the van into the ETBC7 harness, and like that, half of the functions are wired. There are 4 loose wires on the 7-Way that you...
    view full answer...
  • Can 10 Gauge Wire be Used to Create Charge Wire beween Tow Vehicle and Toad
    Using 10 gauge wire to make a charge wire for your toad vehicle is totally fine and actually very cost effective. We sell double bonded 10 gauge wire with part number # 10-2-1 (sold by foot) which would work well for this as the two wires are bonded together. You would not have to worry about overcharging at all either. The tow vehicle's alternator already has a voltage regulator that will keep the voltage in a healthy range.
    view full answer...
  • Recommended Trailer Brake Controller for 2008 Hummer H2
    Starting with the brake controller itself I recommend the Tekonsha Prodigy P2 # 90885. This is an excellent proportional controller that features an easy-to-read digital display, continuous diagnostics that will alert you to any potential issues, and 3 boost level settings so you can fine tune the trailer braking. I have attached a short video demonstration on this unit that you can check out as well. The 2008 Hummer H2 should have come equipped with a factory plug for a 7-Way connector....
    view full answer...
  • Will the ETBC7 Provide Reverse Lockout Functionality on 2017 Dodge Durango for Boat Trailer
    Adding a 7-way connection with the # ETBC7 Universal Installation Kit will provide you with the reverse lockout you need to make sure the brakes do not engage in reverse. Since it sounds like you have a 5-way connection on your boat trailer, you will also need an adapter like the Hopkins Endurance, Flex-Coil Trailer Connector Adapter - 7-Way to 5-Way or 4-Way Flat # HM47075. This would allow you to plug your 5-way connection from the trailer into the 7-way connection on your vehicle. Another...
    view full answer...
  • Will a 4-Pole Flat Trailer Connector also Fit this 5-Pole Flat
    Most standard 4-Pole flat connectors will fit this 5-Pole flat connector. There are quite a few options as far as adapters that you could use. I have added a link to all the 7-Pole to 4-Pole adapters we have. One in particular has both 4-Pole and 5-Pole connectors, part # 37385. We also have a coiled version of the part you were looking at, part # HM47075.
    view full answer...
  • Parts Needed to Add a 7-Way Trailer Connector to a 2012 Toyota Tacoma
    To add a 7-Way trailer connector to a 2012 Toyota Tacoma you will first need to add a 4-Way using # 118496 which just plugs in line with the vehicle tail light wiring. Then you would need to use 4- and 7-Way installation kit # ETBC7. This provides the 7-Way while retaining the 4-Way as well and the accessories needed to install it. An all in one that comes with the 4-Way with tail light connections and a 7-Way ins not available. I have included some links that explain the ETBC7 installation. If...
    view full answer...
  • Custom Fit Parts Needed to Flat Tow a 2016 Chevy Equinox
    Yes we do. The Hopkins tow bar wiring kit part # HM56108 is a custom fit wiring harness for your 2016 Chevy Equinox that will allow your RV to connect to it and control the taillights. I attached an install video for you to check out as well. For an umbilical connector to go from the 4-way of this harness to the 7-way on your RV you would want the part # HM47075. You will need a few more components to flat tow your vehicle though. For a base plate kit we have the Blue Ox part # BX1689...
    view full answer...
  • How to Install Brake and Tail Light Trailer Hitch Receiver Cover # CR-007A on 7-Way
    The Pilot Brake and Tail Light Trailer Hitch Receiver Cover # CR-007A that you referenced has a 4-pole flat trailer connector for making its electrical connection to your Silverado. You can use an adapter like Pollak # PK12716 to allow connection to your Silverado's 7-way trailer socket. If you want to add some length for stress relief you could instead use the Hopkins Heavy-Duty Coiled Trailer Connector Adapter # HM47075.
    view full answer...
  • Recommendations for a 7-Way to 4-Way Coiled Extension to Flat Tow a Jeep Liberty Behind a Motor Home
    The Hopkins Heavy-Duty, Coiled Trailer Connector Adapter, # HM47075, measures 3 feet long when stretched. This will most likely not be long enough for most flat towing applications unless the 4-Way end on the vehicle has some slack that you can pull out. You could just add a 4-pole loop, # 18045, which will provide another 60 inches of length. There is also a 48 inch loop, # 18044. A longer coiled cable is not available unless you use # RM-1064-B (8 feet long) and then wire in 4-Way flats...
    view full answer...

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