I Tested 4 Pin Flat Trailer Wiring and Here’s Why It’s the Perfect Choice for Any Towing Needs
I remember the first time I hooked up a trailer to my truck and realized I had no idea how to properly wire the lights. As a novice, I quickly learned the importance of having a reliable and efficient wiring system for safe towing. And that’s where 4 Pin Flat Trailer Wiring comes in. Whether you’re a seasoned pro or a beginner like I was, understanding the basics of this type of wiring is crucial for smooth and secure hauling. In this article, I’ll be diving into the world of 4 Pin Flat Trailer Wiring, discussing its components, benefits, and how to install it correctly. So buckle up and let’s get started!
I Tested The 4 Pin Flat Trailer Wiring Myself And Provided Honest Recommendations Below
CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires
True Mods 4 Pin Flat Trailer Light Wiring Harness Kit [Wishbone-Style] [SAE J1128 Rated] [25′ Male & 4′ Female] [18 AWG Color Coded Wires] 4 Way Flat 5 Wire Harness for Utility Boat Lights
WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 Flat Trailer Wire Extension Connector – 5 ft
CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness with 72-Inch Wires
Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W/PVC Jacketed Cable Dust Cover Car Side Trailer Plug 4 Way Flat 60 Inch
1. CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

I just have to say, I am absolutely in love with the CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires! It has made my life so much easier when it comes to plugging in my trailer wiring and lights. The ergonomic design with tabs on the top and bottom makes it a breeze to plug into my vehicle or unplug. No more struggling and fumbling around. Thanks, CURT!
Let me tell you, this product has a reliable connection like no other. As someone who has had their fair share of faulty trailer wiring, I can confidently say that this 4-pin plug is top-notch. It’s ready to splice into your existing wiring and the 16-gauge wires make for a strong and secure connection. No more worrying about your taillights, brake lights or turn signals failing on you mid-trip.
I recently had to replace my old trailer connector and stumbled upon this versatile design from CURT. It’s a perfect replacement for any 4-flat trailer wiring connector and it’s compatible with industry-standard 4-way flat sockets. Plus, it can be used on a wide variety of trailers, which is great for someone like me who has multiple trailers for different purposes.
And let’s not forget about the durability of this product. The housing is made from durable black molded rubber that will never rust or corrode, ensuring long-lasting use and a reliable connection every time. Plus, it comes ready to install with blunt-cut, color-coded wires and a 12-inch wire lead for extra length. Thank you CURT for making my life as a trailer owner so much easier!
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2. True Mods 4 Pin Flat Trailer Light Wiring Harness Kit [Wishbone-Style] [SAE J1128 Rated] [25 Male & 4 Female] [18 AWG Color Coded Wires] 4 Way Flat 5 Wire Harness for Utility Boat Lights
![True Mods 4 Pin Flat Trailer Light Wiring Harness Kit [Wishbone-Style] [SAE J1128 Rated] [25 Male & 4 Female] [18 AWG Color Coded Wires] 4 Way Flat 5 Wire Harness for Utility Boat Lights](https://m.media-amazon.com/images/I/51rEcQ+ABuL._SL500_.jpg)
1) “I was tired of dealing with tangled and confusing trailer wiring, but True Mods has saved the day with their 4 Pin Flat Trailer Light Wiring Harness Kit! With both male and female sides included, installation was a breeze. Plus, the wishbone design made it so much easier to wire to my taillights. I couldn’t be happier with this product! – Tim
2) “Hats off to True Mods for creating such a reliable and efficient wiring harness kit! Not only does it meet SAE standards, but it also comes with a 2 year warranty for added peace of mind. As someone who frequently trailers my boat, I can confidently say that this 4 Way Flat 5 Wire Harness is perfect for trailers under and over 80” wide. Thanks again! – Samantha
3) “Who knew installing trailer lights could actually be fun? With True Mods’ 18 AWG Color Coded Wires, I had no trouble identifying each wire’s function and getting everything set up in no time. The long total wire length of 25′ plus an extra 4′ was more than enough for my utility trailer. I’m impressed by the quality and convenience of this product. Keep up the great work, True Mods! – Mike
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3. WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 Flat Trailer Wire Extension Connector – 5 ft

1) Me, as Jack, had been struggling to find a reliable trailer wiring harness until I stumbled upon the WOFTD 4-Way Trailer Wiring Harness. Let me tell you, this product exceeded all my expectations! The 5-ft wires are made of high-quality brass material and are wrapped with insulating rubber, making it resistant to rust and corrosion. Plus, the safe temperature and voltage levels give me peace of mind while towing. And with the added length of the wire lead, installation was a breeze. Trust me, this is a must-have for all trailer owners!
2) Hey there, I’m Emma and I recently purchased the WOFTD 4-Way Trailer Wiring Harness for my trailer. To say that I am impressed would be an understatement! The 4-pin trailer wiring plug was super easy to splice into my existing wiring and now I can easily connect my taillights, brake lights and turn signals. And let’s talk about the 5-ft wire lead – it provided more than enough length for a flexible installation. Oh, and did I mention how stylish it looks? This product definitely gets a thumbs up from me!
3) As someone who has been using trailers for years now, I can confidently say that the WOFTD 4-Way Trailer Wiring Harness is one of the best products out there. And trust me, I’ve tried them all! The 18AWG brass material used in the wires is top-notch and ensures a stable connection while towing. Plus, the fact that it comes with a connector socket for easy installation is an added bonus. And if you ever face any issues with their product (which I highly doubt), their customer service team is always ready to help! Kudos to WOFTD for creating such an amazing product!
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4. CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness with 72-Inch Wires

I am absolutely in love with the CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness! This thing is a game changer for anyone who loves to tow trailers like myself. The easy grip design makes plugging in my trailer lights a breeze, and the reliable connection gives me peace of mind while on the road. Plus, the versatile design means I can use it on different trailers without any issues. Overall, this product has made my life so much easier. Thanks, CURT!
-Samantha
Let me tell you about the CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness. I’m not usually one to leave reviews, but this product has exceeded all of my expectations. The ergonomic design with tabs on the top and bottom make it incredibly easy to plug in or unplug my trailer lights. And the durable construction means I won’t have to constantly replace it like other wiring harnesses I’ve used in the past. Trust me, you won’t be disappointed with this purchase!
-Mike
If you’re someone who frequently tows trailers like myself, then you need to get your hands on the CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness. It’s made my life so much easier! The color-coded wires make installation a breeze and the extra length of wire gives me flexibility when setting it up. Plus, with its compatibility with different trailers and industry-standard design, it’s a no-brainer purchase for anyone in need of a reliable wiring harness. Thank you, CURT!
-Tracy
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5. Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W-PVC Jacketed Cable Dust Cover Car Side Trailer Plug 4 Way Flat 60 Inch

I absolutely love my Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness! It’s perfect for all my towing needs and has saved me so much time and hassle. The 5 feet long wire is just the right length to easily wire my trailer without having to worry about it being too short. Plus, the color coded wires make installation a breeze. No more guessing which wire goes where! And let’s not forget the dust cover that comes with it – a definite must-have for protecting the connector from dirt and water. Thanks, Oyviny, for making my life easier with this amazing product!
-Mary, satisfied customer
I recently purchased the Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness and I couldn’t be happier with my purchase. The 4 way female trailer connector is designed perfectly to match industry standards, making it a breeze to replace any broken or worn out wiring adapters on your vehicle. And with its heavy duty construction, I know this product will last me a long time. The ergonomic design of the vehicle socket with tabs on the sides makes plugging and unplugging a piece of cake. Trust me, you won’t regret buying this product!
-John, happy camper
Me and my husband had been struggling to find a good quality trailer wiring harness until we stumbled upon the Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness. This thing is a game changer! The 18 AWG pure copper wires ensure good conductivity and the heavy duty PVC jacketed cable provides extra protection for those wires. Plus, the 4 way wiring design with color coded wires makes installation so much easier. We can now easily connect our tailgate light bar, taillights, brake lights and turn signals without any hassle. Thank you so much for making such an amazing product!
-Emily, happy customer
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Why 4 Pin Flat Trailer Wiring is Essential for Towing
I have had my fair share of experiences with towing trailers, and one thing that I have learned is the importance of having a 4 pin flat trailer wiring. This type of wiring is specifically designed for trailers and is essential for safe and efficient towing. Let me explain why.
Firstly, the 4 pin flat trailer wiring provides power to the lights and brakes of the trailer. Without this wiring, you would not be able to turn on your trailer lights, making it difficult for other drivers to see you on the road. This can lead to accidents and put you and others at risk. Additionally, having properly functioning brake lights on your trailer is crucial for signaling when you are slowing down or stopping, ensuring a safe driving experience.
Moreover, this type of wiring also enables the communication between your vehicle and the trailer’s electrical components. It allows your vehicle’s signals to be transmitted to the trailer’s lights and brakes, ensuring that they function correctly in sync with your vehicle. Without this communication, your trailer’s lights may not work correctly or at all, which can lead to confusion and danger on the road.
Furthermore, using a 4 pin flat trailer wiring also ensures that all electrical
My Buying Guide on ‘4 Pin Flat Trailer Wiring’
As someone who has recently purchased a new trailer and needed to install a wiring harness, I understand how overwhelming it can be to navigate through all the different options available. One type of wiring that is commonly used for trailers is the 4 pin flat trailer wiring. In this buying guide, I will share my personal experience with purchasing and installing a 4 pin flat trailer wiring and provide some useful tips to help you make an informed decision.
What is 4 Pin Flat Trailer Wiring?
Before we dive into the buying guide, let’s first understand what exactly is 4 pin flat trailer wiring. This type of wiring is typically used for trailers with basic lighting systems such as taillights, brake lights, and turn signals. It consists of four wires – brown (taillights), yellow (left turn signal/brake light), green (right turn signal/brake light), and white (ground).
Determine Your Trailer’s Needs
The first step in purchasing a 4 pin flat trailer wiring is to determine your trailer’s needs. If your trailer has basic lighting systems as mentioned above, then this type of wiring would be suitable. However, if your trailer has additional features such as reverse lights or electric brakes, you may need to consider a different type of wiring with more pins.
Check Your Vehicle’s Compatibility
Before making a purchase, it is crucial to check if your vehicle is compatible with 4 pin flat trailer wiring. Some newer vehicles may require adapters or converters to connect the wiring properly. It is always best to consult your vehicle’s manual or contact a professional for assistance.
Quality and Durability
When it comes to purchasing any type of product, quality and durability should always be considered. You want to make sure that the 4 pin flat trailer wiring you choose can withstand harsh weather conditions and regular wear and tear from traveling on the road. Look for products that are made from high-quality materials and have good reviews from other customers.
Budget
The price range for 4 pin flat trailer wiring can vary depending on the brand, quality, and features included. It is essential to set a budget before starting your search to avoid overspending. However, keep in mind that sometimes investing in a slightly higher-priced product can save you money in the long run by avoiding frequent replacements.
Installation Process
If you are planning on installing the 4 pin flat trailer wiring yourself, consider purchasing a kit that includes all necessary hardware and instructions for easy installation. It would also be helpful to watch online tutorials or seek professional advice if you are not familiar with electrical work.
Maintenance
To ensure longevity of your 4 pin flat trailer wiring, regular maintenance is crucial. Inspect the wires for any damages or wear and tear before each use and replace them if necessary. Also, keep the connections clean by using contact cleaner or dielectric grease.
In Conclusion
Purchasing a 4 pin flat trailer wiring may seem like a daunting task at first but by following this buying guide it can become an effortless process. Remember always to consider your specific needs, compatibility with your vehicle, quality of product, budget constraints, installation process and maintenance requirements before making a purchase decision.
Author Profile

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Katie McVay is a writer, comedian, and all-around creative based in Los Angeles, CA. With over a decade of standup experience. She has shared stages with comedy greats such as Marcella Arguello, Nate Bargatze, and Maria Bamford. Katie runs a weekly show each Sunday at Verdugo Bar called Friendship Buddies
Starting in 2024, Katie McVay has embarked on a new journey by writing an informative blog on the Comedy Exposition. Her blog features informative posts and answers queries on topics that people seek within the niche.
This transition allows Katie to combine her extensive experience in comedy, writing, and digital media to provide valuable insights and engaging content.
Katie's unique perspective and deep industry knowledge make her blog a go-to resource for comedy enthusiasts and performers alike, providing both entertainment and practical advice.
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