Top 10 4 Way to 7 Way Trailer Adapter – Trailer Connectors

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1. OPT7


For Trailer Tow Hitch and Redline Tailgate LED, OPT7 Weatherproof 7 Way Flat Blade to 4 Way Pin Adapter w/Secure Tab

OPT7 #ad - Stays on tight: use your 7-pin dust cover to secure your adapter in place. Ready for any situation: Sealed weatherproof construction with rust resistant prongs and cap cover. It will not fall off. Fully covered by our free 90 days warranty, offered only by OPT7. Perfect for uhaul, 5th wheel, trailers, and any auxillery lighting. The strongest beasts adapt: give your rig the ability to light up any trailer, camper, or accessory.
BrandOPT7 #ad
ManufacturerOPT7 #ad
Height4.33 Inches
Length2.95 Inches
Weight0.31 Pounds
Width1.77 Inches
Part Number900-00121-2
Warranty90 Days Warranty



YONHAN 4 Pin to 7 Pin Adapter Trailer Light Adapter 4-Way Flat Truck to 7-Way Blade Reverse Plug Connector with Mounting Bracket for Towing Solutions

YONHAN #ad - Dust & water proof: the trailer light adapter is well-sealed spring-loaded keeps out dust and water when not in use, including trailers, 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 your trailer hitch or bumper.

If you have any questions, don't hesitate to contact us! What you get: 1 * 4 way flat to 7 way blade trailer Light Adapter with Mounting Bracket, using manual. Applicable to all towing vehicles that don't require electric brakes, semi-trailers, RVs, etc. The inner core is made of pure copper, which dramatically enhances the conductive performance. Easy to use: converts 4 pin flat truck connector to a standard 7 pin RV blade socket, synchronizes the trailer's signal light, plug and play, no splicing of wires needed, connects tail reverse turn signals, easy to create custom plug-in wiring systems for towing solutions.

High quality: the 4 7 trailer adapter uses extremely durable ABS plastic construction instead of PVC, oxidation resistance, improving the corrosion resistance, and high-temperature resistance.
BrandYONHAN #ad
ManufacturerYONHAN #ad
Height3 Inches
Length5.5 Inches
Width4 Inches
Part NumberTC1

3. Hopkins Towing Solutions


Hopkins 47345 4 Wire Flat Adapter

Hopkins Towing Solutions #ad - 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.
BrandHopkins Towing Solutions #ad
ManufacturerHopkins Manufacturing #ad
Height1.75 Inches
Length6.88 Inches
Weight0.2 Pounds
Width2.88 Inches
Part Number47345
WarrantyHopkins warrants all products to be free from defects in material and workmanship, under normal use and service, for a peirod of 90 days from the date of original purchase, with the exception of the Brake-Force and Impulse brake control items, which are warranted to be free from defects in material and workmanship, under normal use and service, for the original buyer's lifetime



ONLINE LED STORE 7-Way Blade to 4-Way Flat Trailer Adapter Nickel-Plated Copper Terminals Rugged Nylon Housing Compact Design 7-pin to 4-pin Trailer Wiring Plug Adapter

ONLINE LED STORE #ad - 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 stored in any of the vehicle's storage compartments.

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 needed. No tools needed - easily adapt your 7-way rv BLADE vehicle socket to 4-WAY FLAT connector used on lightweight trailers. Rugged nylon housing - Water, temperature, and shock resistant to provide years of reliable service.
ManufacturerONLINE LED STORE #ad
Height1.9 Inches
Length6.5 Inches
Width3.74 Inches
Part NumberACCEPSACP1003

5. Buyers Products


Buyers Products TC2074P Plastic Trailer Connector Adapter 7-Way Flat to 4-Way Flat

Buyers Products #ad - Plastic housing. Durable and dependable: founded in 1946, innovation, Buyers Products has become a leader in the truck equipment industry though our commitment to customer care, and value across our range of products.

We do things the right way: we design products like we're building them for ourselves, because we are; Our teams are staffed with engineers and experts who know how to make a product exceptional. Solves a mismatch between your truck and trailer connection hardware. More than just parts: from snow and ice equipment to toolboxes, towing, hydraulics, truck and trailer hardware to our innovative lighting products-it's amazing what Buyers Products can do for your truck.
BrandBuyers Products #ad
ManufacturerBuyers Products #ad
Height1.9 Inches
Length5.05 Inches
Width6.5 Inches
Part NumberTC2074P
WarrantyLimited Lifetime



MaxxHaul 70086 7-Way Round to 4-Way Flat Trailer Plug Adaptor with 18 Inch Flexible Cable Which Extends To 36 Inches , Red

MAXXHAUL #ad - 7-way to 4-way adaptor does the Job of Otherwise Multiple Plugs and Adaptors. Eliminates the need for Multiple Plugs and Adapters to Tow Various Vehicles. Weatherproof molded construction with 18" AWG 300 Volt Rated Flexible Cord. Brass connectors Enables for Solid Electrical Conductivity.
ManufacturerMaxxtow Towing Products #ad
Height1.77 Inches
Length3.74 Inches
Width2.76 Inches
Part Number70086
Warranty90 days



MICTUNING 4-Way Flat to 7-Way Round Blade Trailer Adapter Wiring Plug Connector with Mounting Bracket

MICTUNING #ad - Simple to install - equipped with mounting bracket, screws, and nuts, just find the right position to install and tighten the nut to install successfully. Satisfaction defender: buy with confidence, we stand behind our products all the time, 30 days Money Back/Replacement, worry-free 24-month Warranty, Within 4 Hours Friendly Response,Lifetime Customer Support.

Wide application - applicable to all towing vehicles that don't require electric brakes, semi-trailers, including trailers, RVs, etc. 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 use. Make the wiring easier - plug and play, and customize the plug-in wiring system to connect the trailer, synchronize the trailer's signal light, convert the car's 4-pin flat socket to the 7-pin blade round socket for the trailer, which is very convenient and solves the trouble of rewiring every time.

High-quality manufacturing - using pure copper as the inner core, greatly improves the electrical conductivity. With the high-quality pVC shell, wear-resistant, corrosion-resistant, effectively waterproof and long service life.
ManufacturerMICTUNING #ad
Part NumberMIC-HA-359
Warranty2 years warranty



CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black

CURT #ad - The wiring harness is also well-protected with the included slit loom sleeve. Weather-resistant. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic that will never rust or corrode.

It also includes a mounting bracket for convenient attachment to your hitch or bumper. Versatile design. This dual-output trailer wiring adapter makes it easy to tow different trailers with your vehicle, equipping it with a standard 7-way RV blade socket while retaining use of the existing 4-way flat wiring. Durable construction. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, turn signals, reverse lights, brake lights, trailer brakes and auxiliary power some splicing required.

Standard connection. This dual-output 4-pin to 7-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing required. Easy to install. This trailer wiring harness adapter comes with dust covers for the 4-pin and 7-pin wiring sockets to protect the terminals from water, dirt and corrosion.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight1.1 Pounds
Width2 Inches
Part Number57672
WarrantyOne-Year Limited Warranty

9. Hopkins Towing Solutions


Hopkins 47185 Multi-Tow 4 Flat to 7 Blade and 4 Flat Adapter

Hopkins Towing Solutions #ad - Multi-tow adapters provide two towing options from one vehicle-end connector creating a true customized wiring system. Take the guesswork and frustration out of vehicle to trailer wiring. 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. Multi-tow 7:4.
BrandHopkins Towing Solutions #ad
ManufacturerHopkins Towing Solution #ad
Height3.25 Inches
Length8.88 Inches
Weight0.5 Pounds
Width3.88 Inches
Part Number47185
WarrantyHopkins warrants all products to be free from defects in material and workmanship, under normal use and service, for a peirod of 90 days from the date of original purchase, with the exception of the Brake-Force and Impulse brake control items, which are warranted to be free from defects in material and workmanship, under normal use and service, for the original buyer's lifetime

10. AutoSonic


Female Trailer Connector Plug, Weatherproof, AutoSonic 7 Way Blade to 4 Way Flat Trailer Adapter, Flat Connection, 7 pin to 4 pin Trailer Converter

AutoSonic #ad - You can quickly and easily convert a 7-pole, flat connector with the AutoSonic 7 Way to 4 Way Trailer Adapter, rv-style connector to a 4-way, it can allow your vehicle to tow either campers or boat trailers without electrical brakes. 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 to none craftsmanship which is going to help insure that this adapter is going to last for years of trouble-free operation.

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 our unbeatable Lifetime Warranty Customer Service, the only one of its kind you can find on Amazon.

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 also offer way better protection than others on the market that don’t come with any covers. 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 upgrade your towing experience.
BrandAutoSonic #ad
ManufacturerAutoSonic Products #ad
Height2 Inches
Length3.6 Inches
Weight0.11 Pounds
Width1.9 Inches
Part NumberOGL-1072