20 Best Trailer 4 To 7 Pin Adapter [2024]

Are you looking for the best Trailer 4 To 7 Pin Adapter? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Trailer 4 To 7 Pin Adapter.

We Recommended:

# Preview Product
1 Hopkins 47345 4 Wire Flat Adapter Hopkins 47345 4 Wire Flat Adapter
2 ONLINE LED STORE 7-Way Blade to 4-Way Flat Trailer Adapter [Nickel-Plated Copper Terminals] [Rugged... ONLINE LED STORE 7-Way Blade to 4-Way Flat Trailer Adapter [Nickel-Plated Copper Terminals]...
3 CURT 57240 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter CURT 57240 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter
4 OPT7 Weatherproof 7 Way Flat Blade to 4 Way Pin Adapter w/Secure Tab - for Trailer Tow Hitch and... OPT7 Weatherproof 7 Way Flat Blade to 4 Way Pin Adapter w/Secure Tab - for Trailer Tow Hitch and...
5 YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug... YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug...
6 WOFTD Trailer Plug Adapter 7 Pin Round to 4 and 5 Flat Blade Trailer Connector Trailer Adapter 7 Way... WOFTD Trailer Plug Adapter 7 Pin Round to 4 and 5 Flat Blade Trailer Connector Trailer Adapter 7...
7 MICTUNING 4-Way Flat to 7-Way Round Blade Trailer Adapter Wiring Plug Connector with Mounting... MICTUNING 4-Way Flat to 7-Way Round Blade Trailer Adapter Wiring Plug Connector with Mounting...
8 MITZONE 4-Way Flat to 7-Way Round Blade Trailer Light Adapter Wiring Reverse Plug Connector with... MITZONE 4-Way Flat to 7-Way Round Blade Trailer Light Adapter Wiring Reverse Plug Connector with...
9 Trailer Plug Adapters 7 Pin to 4 and 5 Flat Blade Trailer Connector for Trailer Tow Hitch,... Trailer Plug Adapters 7 Pin to 4 and 5 Flat Blade Trailer Connector for Trailer Tow Hitch,...
10 AutoSonic 7 Way Blade to 4 Way Flat Trailer Adapter, Female Trailer Connector Plug, 7 pin to 4 pin... AutoSonic 7 Way Blade to 4 Way Flat Trailer Adapter, Female Trailer Connector Plug, 7 pin to 4...
11 X AUTOHAUX 4.5ft 7 Way Round to 4 Way Pin Flat Trailer Coiled Wiring Harness Connector Adapter Plug X AUTOHAUX 4.5ft 7 Way Round to 4 Way Pin Flat Trailer Coiled Wiring Harness Connector Adapter Plug
12 CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black
13 MaxxHaul 70086 7-Way Round to 4-Way Flat Trailer Plug Adaptor with 18 Inch Flexible Cable Which... MaxxHaul 70086 7-Way Round to 4-Way Flat Trailer Plug Adaptor with 18 Inch Flexible Cable Which...
14 Hopkins 47185 Multi-Tow 4 Flat to 7 Blade and 4 Flat Adapter Hopkins 47185 Multi-Tow 4 Flat to 7 Blade and 4 Flat Adapter
15 CARROFIX 7 Pin Round to 7 Way RV Blade Trailer Adapter Wiring Connector CARROFIX 7 Pin Round to 7 Way RV Blade Trailer Adapter Wiring Connector
16 SS VISION Heavy Duty Trailer Converter Adapter 7 Way Round to 4 Pin Flat Plug Blade SS VISION Heavy Duty Trailer Converter Adapter 7 Way Round to 4 Pin Flat Plug Blade
17 Super repairman 7 Pin Round to 4 Pin 5 Pin Flat Blade Trailer RV Boat Adapter Plug Super repairman 7 Pin Round to 4 Pin 5 Pin Flat Blade Trailer RV Boat Adapter Plug
18 Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter Plug End 4 pin to 7 pin Electrical Connector... Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter Plug End 4 pin to 7 pin Electrical...
19 CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester, Black CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester, Black
20 COROTC 7 Way to 4 Way 5 Way Trailer Light Adapter, 7 Pin Round to 4 Pin 5 Pin Flat Blade Trailer RV... COROTC 7 Way to 4 Way 5 Way Trailer Light Adapter, 7 Pin Round to 4 Pin 5 Pin Flat Blade Trailer...
Bestseller No. 1
Hopkins 47345 4 Wire Flat Adapter
  • The new patent-pending LED series incorporates built-in trouble-shooting
  • If the trailer lights are not functioning correctly, you can isolate the problem by simply looking at the adapter
  • Includes function testing LEDs
  • 7 Way RV blade to 4 Wire flat
  • Take the guesswork and frustration out of vehicle to trailer wiring
Bestseller No. 2
ONLINE LED STORE 7-Way Blade to 4-Way Flat Trailer Adapter [Nickel-Plated Copper Terminals] [Rugged...
  • NO TOOLS NEEDED - Easily adapt your 7-WAY RV BLADE vehicle socket to 4-WAY FLAT connector used on lightweight trailers.
  • NO MORE UGLY DANGLING CONNECTORS - Our 7-way blade to 4-way flat adapter eliminates the need of converter wiring harnesses and is compact enough to be...
  • RUGGED NYLON HOUSING - Water, temperature, and shock resistant to provide years of reliable service.
  • EXCEEDS OEM SPECIFICATIONS - Nickel-plated copper electrical terminals are tough against corrosions while yielding superior conductivity.
  • LOCKS SECURELY IN PLACE - Durable nylon housing designed to be latched on by the tow vehicle's socket while finger lugs allow easy removal when...
SaleBestseller No. 3
CURT 57240 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter
  • VERSATILE DESIGN. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade...
  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring adapter. It features tabs on...
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 7-way RV blade and can be used to connect the taillights, brake lights...
  • NO-SPLICE INSTALL. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic...
SaleBestseller No. 4
OPT7 Weatherproof 7 Way Flat Blade to 4 Way Pin Adapter w/Secure Tab - for Trailer Tow Hitch and...
  • The STRONGEST BEASTS ADAPT: Give your rig the ability to light up any trailer, camper, or accessory
  • STAYS ON TIGHT: Use your 7-pin dust cover to secure your adapter in place. It WILL NOT fall off
  • READY FOR ANY SITUATION: Sealed weatherproof construction with rust resistant prongs and cap cover
  • PERFECT FOR UHAUL, trailers, 5th wheel, and any auxillery lighting
  • FULLY COVERED by our free 90 Days warranty, offered only by OPT7
SaleBestseller No. 5
YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug...
  • Easy to Use: Converts 4 pin flat truck connector to a standard 7 pin RV blade socket, connects tail reverse turn signals, synchronizes the trailer's...
  • High Quality: The 4 7 trailer adapter uses extremely durable ABS plastic construction instead of PVC, improving the corrosion resistance, oxidation...
  • Dust & Water Proof: The trailer light adapter is Well-sealed spring-loaded keeps out dust and water when not in use, and prolongs its use life....
  • Simple Installation: The 4 way to 7 way trailer adapter comes with a mounting bracket and hardware, conveniently connect the trailer wiring adapter to...
  • What You Get: 1 * 4 Way Flat to 7 Way Blade Trailer Light Adapter with Mounting Bracket, using manual. If you have any questions, don't hesitate to...
Bestseller No. 6
WOFTD Trailer Plug Adapter 7 Pin Round to 4 and 5 Flat Blade Trailer Connector Trailer Adapter 7 Way...
  • 7-way Round to a 4-way or 5-way Flat Blade trailer connector, Designed by WOFTD, photographed by WOFTD. RV-style connector.
  • Eliminates the need for cutting or splicing. Hassle free setup, no wiring nor splicing required.
  • The WOFTD trailer plug adapter adopts the 2 in 1 design, which combines 4 way plug with 5 way plug, and can be used by most trailers, easily convert 7...
  • The plug with copper wire link, Not easy to get hot, better electrical conductivity. With a strong casing, it is highly waterproof, wear-resistant,...
  • Please feel free to contact us at first if there is any problem when you receive or use our products. We are always here to support you.
Bestseller No. 7
MICTUNING 4-Way Flat to 7-Way Round Blade Trailer Adapter Wiring Plug Connector with Mounting...
  • Make the Wiring Easier - Plug and play, convert the car's 4-pin flat socket to the 7-pin blade round socket for the trailer, synchronize the trailer's...
  • High-quality Manufacturing - Using pure copper as the inner core, greatly improves the electrical conductivity. With the high-quality PVC shell,...
  • Provide Extra Protection - With the spring-loaded cover, high dust-proof, to avoid the adapter damage from the external environment when it is not in...
  • Simple to Install - Equipped with mounting bracket, screws, and nuts, just find the right position to install and tighten the nut to install...
  • Wide Application - Applicable to all towing vehicles that don't require electric brakes, including trailers, semi-trailers, RVs, etc
Bestseller No. 8
MITZONE 4-Way Flat to 7-Way Round Blade Trailer Light Adapter Wiring Reverse Plug Connector with...
  • ✅【PLUG & PLAY】 No splicing of wires are needed, PLUG & PLAY. Easily convert 4 way flat socket to 7 way blade round socket, connects tail reverse...
  • ✅【ALL-INCLUSIVE PACKAGE】Package includes: 1 * 7 Pin Flat to 4 Pin Blade Round Trailer Adapter + 1 * Mounting Bracket + 6 * Screws + 6 * Nuts.
  • ✅【Dust-proof & Water-Proof】Well-sealed spring-loaded cover, designed to avoid the adapter damage from the external environment when it is not in...
  • ✅【Wide Application】 Applicable to all towing vehicles that don't require electric brakes, including trailers, semi-trailers,caravans, RVs,...
  • ✅【PURCHASE WITH CONFIDENCE】In BSOC AUTO Store, right parts are guaranteed. If you are not sure about the vehicle fitment or the part ever fails...
Bestseller No. 9
Trailer Plug Adapters 7 Pin to 4 and 5 Flat Blade Trailer Connector for Trailer Tow Hitch,...
  • 7 PIN TO 4/5 PIN -- Converts 7-way round trailer connector to a 4-way or 5-way, RV-style connector
  • TRAILER PLUG -- Applicable for utility RV boat camper trailer car carrier
  • EASY TO USE -- Simple plug-and-play, eliminates the need for cutting or splicing. Hassle free setup, no wiring nor splicing required, Just Plug-N-Play
  • WIDELY USED -- 7 way to 4 way 5 way Trailer Plug works fine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM,...
  • Brand: HOB4U - THE BEST CUSTOMER SERVICE - If for any reason you're not completely happy with your purchase - if it breaks, if it's damaged in...
Bestseller No. 10
AutoSonic 7 Way Blade to 4 Way Flat Trailer Adapter, Female Trailer Connector Plug, 7 pin to 4 pin...
  • You can quickly and easily convert a 7-pole, RV-style connector to a 4-way, flat connector with the AutoSonic 7 Way to 4 Way Trailer Adapter, it can...
  • We hold the highest bar in the industry, the AutoSonic 7 Way to 4 Way Trailer Adapter is made of durable and weather-resistant materials with second...
  • The AutoSonic adapter features a classic while compact design, and it also comes with a anti-dust cover, not only to make it look like more sexy but...
  • Its plug & play function, super high quality nature makes it a must-have gadget for your towing vehicles, you'd be smart to get one for yourself and...
  • Go with AutoSoinc products & Go with confidence: we are proud of our quality products and stand behind them, that’s why what you will also get is...
SaleBestseller No. 11
X AUTOHAUX 4.5ft 7 Way Round to 4 Way Pin Flat Trailer Coiled Wiring Harness Connector Adapter Plug
  • Adapts a 7 way trailer hitch used for RV and boat towing to a 4 flat connection.
  • Coiled cable stretches at least 4.5ft long, which provides sufficient space for towing vehicle and trailer. Note: The designed length of this coiled...
  • With the function of connecting running lights, left turn and brake signal, right turn and brake signal. Plated terminals, abrasion resistant. The...
  • Compact design between the wire and plug, well protect the adapter from the dust and water, for long service life.
  • Easy installation and plug in use, fit for most boat, trailer and RV towing. Note: Before purchasing, please confirm whether the length of the cable...
Bestseller No. 12
CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black
  • VERSATILE DESIGN. This dual-output trailer wiring adapter makes it easy to tow different trailers with your vehicle, equipping it with a standard...
  • WEATHER-RESISTANT. This trailer wiring harness adapter comes with dust covers for the 4-pin and 7-pin wiring sockets to protect the terminals from...
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights,...
  • EASY TO INSTALL. This dual-output 4-pin to 7-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing...
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic...
SaleBestseller No. 13
MaxxHaul 70086 7-Way Round to 4-Way Flat Trailer Plug Adaptor with 18 Inch Flexible Cable Which...
  • Eliminates the Need for Multiple Plugs and Adapters to Tow Various Vehicles
  • 7-Way to 4-Way Adaptor Does the Job of Otherwise Multiple Plugs and Adaptors
  • Brass Connectors Enables for Solid Electrical Conductivity
  • Weatherproof Molded Construction with 18" AWG 300 Volt Rated Flexible Cord
Bestseller No. 14
Hopkins 47185 Multi-Tow 4 Flat to 7 Blade and 4 Flat Adapter
  • Multi-Tow adapters provide two towing options from one vehicle-end connector creating a true customized wiring system
  • Multi-Tow 7:4
  • 4 wire flat to 4 wire flat and 7 RV round adapter
  • Allows the user to create custom plug-in wiring systems for any towing situation
  • Take the guesswork and frustration out of vehicle to trailer wiring
Bestseller No. 15
CARROFIX 7 Pin Round to 7 Way RV Blade Trailer Adapter Wiring Connector
  • This adapter allows to convert your 7 round vehicle side to a standard 7 RV trailer side connection
  • U.S standard, perfectly solves a mismatch between your truck and trailer connection hardware
  • Durable, 7 way connector is constructed of high-impact, weather-resistant ABS thermoplastic
  • Plug-In-Simple design for quick and easy installation, no splicing of wires needed
  • Spring-loaded, hinged door on socket to protect the interior from dirt and moisture
Bestseller No. 16
SS VISION Heavy Duty Trailer Converter Adapter 7 Way Round to 4 Pin Flat Plug Blade
  • MAKE THE WIRING EASIER - SS VISION adapter plug converts 7-pin blade round socket into 4-pin flat socket, customizes the plug-in wiring system to...
  • STRONG AND DURABLE - Made of heavy-duty PVC, it has excellent wear resistance, strong enough to stand up to bad weather. Uses brass terminals and tin...
  • PLUG AND PLAY - Installation is very simple, no need to rewire, plug and play, tight & secure connection, does not move around
  • WIDE APPLICATIONS - The best choice for connecting trailers, suitable for most towing vehicles, as Dodge, Toyota, Boat Trailer, RAM
  • EXCELLENT SERVICE - If you have any problems after receiving the products, please contact us in time, we will solve it for you as soon as possible
Bestseller No. 17
Super repairman 7 Pin Round to 4 Pin 5 Pin Flat Blade Trailer RV Boat Adapter Plug
  • 7PIN TO 4/5 PIN - Converts 7-way round trailer connector to a 4-way or 5-way, RV-style connector.
  • TRAILER PLUG - Applicable for utility RV boat camper trailer car carrier.
  • EASY TO USE - Simple plug-and-play, eliminates the need for cutting or splicing. Hassle free setup, no wiring nor splicing required, Just Plug-N-Play.
  • WIDELY USED - 7 way to 4 way 5 way Trailer Plug works fine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM,...
  • LIFETIME - "Super Repairman" Professional 7 Way Trailer Plug,7 pin Round to 4 pin or 5 pin Flat Blade Manufacturer. 60 Days Money Back. A replacement...
Bestseller No. 18
Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter Plug End 4 pin to 7 pin Electrical Connector...
  • 🚚【Tight-Fitted Towing Adapter】 This adapter converts the 4-way flat socket to the 7-way round type socket, connecting tail light, reverse...
  • 🚚【Hassle-Free Setup】Standard round 7-way flat blade connector easily and tightly snaps into trailer's existing socket and holds without any...
  • 🚚【Ultra Durability】Kohree trailer connector is made from heavy plastic for lightweight and durability. Brass terminals and tin contact offer...
  • 🚚【WIdely Application】Kohree Heavy Duty 4 way to 7 way adapter, offers a trusted power supply for towing, well lights up running lights, tail...
  • 🚚【Universe Plug】This 4 way trailer adapter plug works fine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford, Dodge,...
SaleBestseller No. 19
CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester, Black
  • VERSATILE DESIGN. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade...
  • INTEGRATED TESTER. This trailer wiring adapter features a dust cover with a built-in LED wiring tester to ensure proper functionality of your vehicle...
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 7-way RV blade and can be used to connect the taillights, brake lights,...
  • NO-SPLICE INSTALL. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic...
Bestseller No. 20
COROTC 7 Way to 4 Way 5 Way Trailer Light Adapter, 7 Pin Round to 4 Pin 5 Pin Flat Blade Trailer RV...
  • đŸ« 【7PIN TO 4/5 PIN】Converts 7-way round trailer connector to a 4-way or 5-way, RV-style connector.
  • đŸ« 【TRAILER PLUG】Applicable for utility RV boat camper trailer car carrier.
  • đŸ« 【EASY TO USE】Simple plug-and-play, eliminates the need for cutting or splicing. Hassle free setup, no wiring nor splicing required, Just...
  • đŸ« 【 WIDELY USED】7 way to 4 way 5 way Trailer Plug works fine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford,...
  • đŸ« 【Sincere Service】"COROTC" Professional 7 Way Trailer Plug,7 pin Round to 4 pin or 5 pin Flat Blade Manufacturer. If you are not completely...

Having trouble finding a great Trailer 4 To 7 Pin Adapter?

This problem is well understood by us because we have gone through the entire Trailer 4 To 7 Pin Adapter research process ourselves, which is why we have put together a comprehensive list of the best Trailer 4 To 7 Pin Adapters available in the market today.

After hours of searching and using all the models on the market, we have found the best Trailer 4 To 7 Pin Adapter for 2023. See our ranking below!

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John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Trailer 4 To 7 Pin Adapter that you consider buying. Your questions might include the following:

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John Harvards provides an Trailer 4 To 7 Pin Adapter buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

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  1. Brand Value: Every brand of Trailer 4 To 7 Pin Adapter has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Trailer 4 To 7 Pin Adapter?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Trailer 4 To 7 Pin Adapter.
  5. Customer Ratings: Number ratings grade Trailer 4 To 7 Pin Adapter objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Trailer 4 To 7 Pin Adapter.
  7. Product Quality: You don’t always get what you pay for with an Trailer 4 To 7 Pin Adapter, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Trailer 4 To 7 Pin Adapter is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Trailer 4 To 7 Pin Adapter information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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FAQ:

Q: What is a 7 pin connector on a trailer?

A: It is filled with the information you need to know to make the right connection for your trailer. A 7 pin connector is a simple device that has 3 more functions than the 4 pin version.

Q: Can I connect a 4-pin connector to a 7-pin adapter?

A: Connecting a 4 pin connector to a 7 pin adaptor or trailer system, or vice versa, is not that difficult. All it takes is a little patience, a little know-how, and some expert advice if you are not sure. Just keep in mind that when you are doing that, you may not be able to use all the features on your trailer.

Q: Can I plug my RV lights into a 7 pin adapter?

A: Getting electrical power to your vital RV functions is not as difficult as it may seem. Sometimes you can plug a 4 pin connector into a 7 pin adapter and get all the power to your lights, and more as you need.

Q: What does a 4 pole connector do on a trailer?

A: What is a 4 Pole Connector The four-pin connector is similar to the 7 pin in that it helps send the electrical power to your trailer’s safety lights. It just has fewer options and doe snot usually control the electric brake, aux power or the reverse lights.