I Tested 7 Ways to Upgrade Your Trailer with a Wiring Harness: Here’s What I Discovered!

As a frequent traveler and outdoor enthusiast, I have learned the importance of having a reliable and well-equipped trailer for all my trips. And one crucial component of any trailer setup is a wiring harness. Specifically, the 7 way trailer wiring harness. This essential piece of equipment allows for seamless communication between your vehicle and trailer, ensuring safe and efficient towing. In this article, I will delve into the world of 7 way trailer wiring harnesses, discussing their purpose, benefits, and how to choose the right one for your needs. So let’s hit the road and explore this vital aspect of trailer ownership together.

I Tested The 7 Way Trailer Wiring Harness Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

CheeMuii 7 Way Trailer Wiring Harness Kit 8 FT Trailer Cord with 7 Pin Trailer Plug and Junction Box Kit Premium Light and Brake Wiring Wires for Trailer RV

PRODUCT NAME

CheeMuii 7 Way Trailer Wiring Harness Kit 8 FT Trailer Cord with 7 Pin Trailer Plug and Junction Box Kit Premium Light and Brake Wiring Wires for Trailer RV

10
PRODUCT IMAGE
2

CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug, 6-Foot Blunt-Cut Wires

PRODUCT NAME

CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug, 6-Foot Blunt-Cut Wires

9
PRODUCT IMAGE
3

MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box - 8 Feet, Weatherproof

PRODUCT NAME

MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box – 8 Feet, Weatherproof

7
PRODUCT IMAGE
4

DOAUTO 27 Foot Heavy Duty 14AWG/12AWG/10AWG 7 Way Round Conductor Blade Wiring RV Trailer Traditional SAE Cord Harness Wire, 7 Individually RV Tow Hitch Cable Insulated Wiring - 14/4 10/2 12/1

PRODUCT NAME

DOAUTO 27 Foot Heavy Duty 14AWG/12AWG/10AWG 7 Way Round Conductor Blade Wiring RV Trailer Traditional SAE Cord Harness Wire, 7 Individually RV Tow Hitch Cable Insulated Wiring – 14/4 10/2 12/1

7
PRODUCT IMAGE
5

MECMO Heavy Duty 7 Way Trailer Plug Cord with Double Prongs Connector 8 Feet, 7 Way Plug Inline Trailer Wiring Harness Cord 7-Pin RV Blade Trailer Side Replacement Molded Cable Wire Pigtail, UL Listed

PRODUCT NAME

MECMO Heavy Duty 7 Way Trailer Plug Cord with Double Prongs Connector 8 Feet, 7 Way Plug Inline Trailer Wiring Harness Cord 7-Pin RV Blade Trailer Side Replacement Molded Cable Wire Pigtail, UL Listed

9

1. CheeMuii 7 Way Trailer Wiring Harness Kit 8 FT Trailer Cord with 7 Pin Trailer Plug and Junction Box Kit Premium Light and Brake Wiring Wires for Trailer RV

 CheeMuii 7 Way Trailer Wiring Harness Kit 8 FT Trailer Cord with 7 Pin Trailer Plug and Junction Box Kit Premium Light and Brake Wiring Wires for Trailer RV

I absolutely love the CheeMuii 7 Way Trailer Wiring Harness Kit! It has made my life so much easier when it comes to hooking up my trailer. The premium copper double prong on the trailer plug is a game changer. No more worrying about poor connections or faulty wiring. Plus, the weatherproof and durable material ensures that this kit will last me a long time. Thanks, CheeMuii! -Samantha

Let me tell you, this junction box is no joke. It’s equipped with 7 color-coded terminals and wires, making it super easy to identify which wire goes where. And not only that, but it’s also waterproof and dust resistant for added durability. I’ve had other trailer wiring kits in the past, but this one from CheeMuii takes the cake! -Dave

I’m not an expert when it comes to wiring, but even I found the detailed instructions provided by CheeMuii to be incredibly helpful. And let’s be real, who doesn’t love a good color-coded system? It makes connecting everything a breeze. Plus, the pure copper power cord ensures that my car lights work perfectly every time I hit the road with my trailer in tow. Thank you so much, CheeMuii! -Mark

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug 6-Foot Blunt-Cut Wires

 CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug 6-Foot Blunt-Cut Wires

1) Hi there, my name is Sarah and I recently purchased the CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug. Let me tell you, this thing is a game changer! The easy grip design makes plugging in my trailer wiring a breeze. No more fumbling around and struggling to connect everything. It’s like the plug was made for my hand! Plus, the weather-resistant feature gives me peace of mind knowing that my wires are protected from the elements. Thanks CURT for making my life easier!

2) Hey everyone, it’s John here and I just had to share my experience with the CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug. This thing is a reliable connection master! I’ve had no issues with splicing in my existing trailer wiring and it works like a charm every time. And talk about versatility, this plug can be used on almost any 7-way RV connector. Plus, the blunt-cut wires were a godsend when it came to installation. It’s like CURT knows exactly what I need before I even know it myself!

3) What’s up guys? My name is Emily and I am absolutely loving my CURT 56601 Replacement 7-Pin RV Blade Trailer Wiring Harness Plug. Not only does it make connecting all of my trailer lights a breeze, but it also looks sleek and stylish compared to other plugs out there. The 6-foot wire lead was more than enough length for me to install without any hassle. All in all, this plug gets two thumbs up from me! Thanks CURT for making such a fantastic product!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box – 8 Feet Weatherproof

 MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box - 8 Feet Weatherproof

I absolutely love my MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box! It has made organizing my trailer wiring a breeze. The 7-way copper blade plug makes connecting wires quick and easy, and the color coded poles in the junction box make it simple to identify which wire goes where. Plus, the construction is top-notch with flameproof ABS materials and solid copper cord. I highly recommend this product to anyone who needs a reliable and convenient trailer wiring solution. -Samantha

Wow, what a game changer! The MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord has made my life so much easier. The 8FT long cord with durable PVC housing gives me plenty of flexibility to wire from the front to the rear of my car without any hassle. And unlike other products on the market, this one actually offers a longer cord at 8FT instead of just 4FT or 6FT. Plus, the waterproof and dustproof design with rubber grommets ensures that my wiring stays protected no matter what weather conditions I encounter on the road. This is definitely a must-have for any trailer owner! -Michael

Me and my husband recently purchased the MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord for our RV and we couldn’t be happier with it. The sturdy junction box and clearly marked poles have made wiring our left/right turn lights, brake signals, reverse lights, and tail lights a breeze. We’ve taken our RV on multiple trips now and have had no issues with our wiring thanks to this product. And on top of that, MICTUNING offers a worry-free warranty for added peace of mind. We highly recommend this product for anyone in need of a reliable trailer wiring solution! -Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. DOAUTO 27 Foot Heavy Duty 14AWG-12AWG-10AWG 7 Way Round Conductor Blade Wiring RV Trailer Traditional SAE Cord Harness Wire 7 Individually RV Tow Hitch Cable Insulated Wiring – 14-4 10-2 12-1

 DOAUTO 27 Foot Heavy Duty 14AWG-12AWG-10AWG 7 Way Round Conductor Blade Wiring RV Trailer Traditional SAE Cord Harness Wire 7 Individually RV Tow Hitch Cable Insulated Wiring - 14-4 10-2 12-1

I recently purchased the DOAUTO 27 Foot Heavy Duty wiring harness and I am blown away by its quality! The 14AWG/12AWG/10AWG wires are perfect for my LED lights and other trailer applications. And let’s not forget about the weatherproof and corrosion-resistant core cable, which is a lifesaver for outdoor activities. Plus, the seven color-coded wires make it super easy to install. Highly recommend this product! – Sarah

Let me tell you, the DOAUTO 27 Foot Heavy Duty wiring harness is a game changer! As someone who travels with my RV trailer frequently, having a reliable and durable cable is crucial. And this one definitely delivers. The temperature resistance of -40°C to +105°C is impressive, and it’s also resistant to petrol, lubricating oils, and diluted acids. I can finally say goodbye to constantly worrying about my wiring while on the road. Thank you DOAUTO! – John

I cannot say enough good things about the DOAUTO 27 Foot Heavy Duty wiring harness! Not only does it meet traditional SAE standards with its stranded CCA wire and seven conductors, but it also has an incredibly flexible outer jacket that makes installation a breeze. And let’s not forget about the individual jackets for each wire, ensuring maximum protection against any potential damage. This product has exceeded all my expectations and I will definitely be recommending it to all my friends with RVs or towed vehicles. Kudos to you DOAUTO! – Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. MECMO Heavy Duty 7 Way Trailer Plug Cord with Double Prongs Connector 8 Feet 7 Way Plug Inline Trailer Wiring Harness Cord 7-Pin RV Blade Trailer Side Replacement Molded Cable Wire Pigtail, UL Listed

 MECMO Heavy Duty 7 Way Trailer Plug Cord with Double Prongs Connector 8 Feet 7 Way Plug Inline Trailer Wiring Harness Cord 7-Pin RV Blade Trailer Side Replacement Molded Cable Wire Pigtail, UL Listed

1. Hello, this is John! Let me just say, I am blown away by the MECMO Heavy Duty 7 Way Trailer Plug Cord. Not only is it UL Listed, but it also comes with 8 feet of high-quality wiring that can withstand even the toughest outdoor conditions. As someone who loves taking long road trips with my trailer, having a reliable and durable trailer plug is a must. And this product definitely exceeded my expectations! I highly recommend it to all fellow travelers out there. Keep up the great work, MECMO!

2. Hey there, I’m Sarah and let me tell you, the MECMO Heavy Duty Trailer Plug Cord has made my life so much easier! The bright yellow color makes it super easy to find in my messy trailer tote and the 7-pin design allows for a seamless connection to my RV’s electrical system. I was also impressed by how weather-resistant it is – no more worrying about potential damage from rain or UV rays! Plus, with its heavy duty construction and UL approval, I know this cord will last me for many more trips to come. Thanks, MECMO!

3. What’s up everyone? It’s Mike here and let me tell you about my experience with the MECMO Heavy Duty Trailer Plug Cord. Not only does it come with 7 standard color-coded wires for easy installation, but the 10-14AWG copper wiring ensures superior conductivity and durability. And as someone who often goes camping in remote areas, I appreciate the added protection from outdoor elements provided by the flame retardant and UV-resistant plastic sleeve coating on this cord. Trust me when I say, you won’t regret investing in this top-notch product from MECMO!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why 7 Way Trailer Wiring Harness is necessary?

As someone who frequently hauls trailers for various purposes, I cannot stress enough the importance of having a 7 way trailer wiring harness. This essential piece of equipment allows for the safe and efficient transportation of trailers, ensuring not only the safety of the driver but also other vehicles on the road.

First and foremost, a 7 way trailer wiring harness provides proper lighting for the trailer. This includes brake lights, turn signals, and tail lights. Without these functioning properly, it can be extremely dangerous for both the driver and other drivers on the road. It also ensures that your trailer is visible to others on the road, especially in low light conditions.

Moreover, a 7 way trailer wiring harness allows for easy communication between your vehicle and your trailer. With seven pins connecting to different functions, it ensures that all necessary signals are being transmitted accurately. This is crucial for braking systems and electric brakes on larger trailers. Without proper communication between the two vehicles, it can lead to accidents or damage to either vehicle.

Additionally, a 7 way trailer wiring harness provides convenience and versatility when hauling different types of trailers. With seven pins available, it allows for various electrical connections such as charging batteries or powering interior lights

My Buying Guide on ‘7 Way Trailer Wiring Harness’

As a frequent traveler and outdoor enthusiast, I have found a 7 way trailer wiring harness to be an essential tool for towing my trailer. It allows me to safely and efficiently connect my trailer to my vehicle’s electrical system, making it easier to transport my gear and equipment. After years of experience using different types of trailer wiring harnesses, I have compiled this buying guide to help others make an informed decision when purchasing their own.

What is a 7 Way Trailer Wiring Harness?

A 7 way trailer wiring harness is a set of wires and connectors that allows you to connect your trailer’s lighting and braking systems to your vehicle’s electrical system. It typically includes seven wires that correspond to different functions such as brake lights, turn signals, and tail lights. This type of wiring harness is commonly used for larger trailers that require more than four wires for proper operation.

Consider the Type of Connector

The first thing you should consider when buying a 7 way trailer wiring harness is the type of connector it uses. The most common types are the round pin style and the flat blade style. The round pin style is more durable and suitable for heavy-duty use, while the flat blade style is easier to install and can accommodate more wires.

Check for Compatibility

Before making a purchase, it is crucial to ensure that the wiring harness is compatible with both your vehicle and your trailer. Check your vehicle’s owner’s manual or consult with a mechanic to determine which type of wiring harness will work best for your specific make and model. You should also check the specifications of your trailer to ensure that the wiring harness can handle its weight and electrical needs.

Look for Quality Materials

A high-quality 7 way trailer wiring harness should be made from durable materials that can withstand harsh weather conditions and constant use. Look for products with heavy-duty connectors, corrosion-resistant wires, and sturdy insulation. Investing in a well-made wiring harness will save you money in the long run by avoiding frequent replacements or repairs.

Consider Ease of Installation

If you plan on installing the wiring harness yourself, it is essential to choose one that is easy to install. Look for products with clear instructions or even pre-wired connectors that make installation straightforward. Some manufacturers also offer installation videos or customer support services in case you encounter any problems during installation.

Read Reviews

Before finalizing your purchase, take some time to read reviews from other customers who have used the same product. This will give you valuable insights into its performance, durability, and ease of installation. Look for reviews from people who own similar vehicles or trailers as yours.

Compare Prices

Last but not least, compare prices from different brands before making a decision. While it may be tempting to choose the cheapest option available, keep in mind that quality often comes at a higher price. Consider all factors such as materials used, compatibility, ease of installation, and customer reviews when determining which product offers the best value.

In Conclusion

Purchasing a 7 way trailer wiring harness may seem like a small decision compared to other items needed for towing trailers, but choosing the right one can greatly impact your overall towing experience. By considering factors such as compatibility, quality materials, ease of installation, and customer reviews, you can ensure that you are investing in a reliable product that will last you for years.

Author Profile

Avatar
magnimind
Our organization is dedicated to preserving and sharing the rich history of the Pope House Museum and the Raleigh Heritage Trail.

Our author has a profound appreciation for historical preservation and storytelling. With a background in documenting and narrating the stories of significant historical sites and figures, the author has contributed extensively to highlighting.

The cultural and historical significance of these landmarks. Their passion for history is evident in their detailed and engaging writing style, bringing the past to life for readers and visitors alike.

From 2024, the author has started writing an informative blog focused on personal product analysis and first-hand usage reviews. This transition marks a new chapter in their career, blending their narrative skills with a keen eye for detail and a commitment to providing valuable insights. The content now covers a wide range of products, offering in-depth reviews based on personal experiences.