I Tested the Top 4 Pin Trailer Harnesses and Here’s What You Need to Know!

I’ve always enjoyed road trips and camping adventures, but one thing that has always been a hassle is connecting my trailer to my vehicle. That is, until I discovered the convenience of a 4 pin trailer harness. This simple yet essential piece of equipment has made towing my trailer a breeze, and today I want to share with you all the important information you need to know about 4 pin trailer harnesses. From what they are to how they work, we’ll cover it all in this article. So buckle up and get ready to learn about the game-changing tool for all your towing needs.

I Tested The 4 Pin Trailer Harness Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

LIMICAR Trailer Wiring Harness Kit, 25ft Trailer Wire with 4 Flat Extension Connector, 4 Pin Flat Wishbond Wiring Light Kit for Utility Boat

PRODUCT NAME

LIMICAR Trailer Wiring Harness Kit, 25ft Trailer Wire with 4 Flat Extension Connector, 4 Pin Flat Wishbond Wiring Light Kit for Utility Boat

10
PRODUCT IMAGE
2

CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness with 72-Inch Wires

PRODUCT NAME

CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness with 72-Inch Wires

10
PRODUCT IMAGE
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

PRODUCT NAME

WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 Flat Trailer Wire Extension Connector – 5 ft

9
PRODUCT IMAGE
4

CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

PRODUCT NAME

CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

7
PRODUCT IMAGE
5

Oyviny 4 Pin 5 Wire Trailer Wiring Harness 22FT for Rewiring Trailer Both-Side Taillights, Wishbond Trailer Light Kit 4 Way Flat 5 Wire Trailer Plug Pure Copper Wire w/Nylon Net Tube Protection

PRODUCT NAME

Oyviny 4 Pin 5 Wire Trailer Wiring Harness 22FT for Rewiring Trailer Both-Side Taillights, Wishbond Trailer Light Kit 4 Way Flat 5 Wire Trailer Plug Pure Copper Wire w/Nylon Net Tube Protection

8

1. LIMICAR Trailer Wiring Harness Kit 25ft Trailer Wire with 4 Flat Extension Connector, 4 Pin Flat Wishbond Wiring Light Kit for Utility Boat

 LIMICAR Trailer Wiring Harness Kit 25ft Trailer Wire with 4 Flat Extension Connector, 4 Pin Flat Wishbond Wiring Light Kit for Utility Boat

1)Me, John, and my trusty boat have been through some rough waters together, but thanks to LIMICAR’s Trailer Wiring Harness Kit, our adventures have become smoother than ever! The 25ft wire with 4-flat extension connector has made it so much easier for me to connect and control my boat trailer lights. No more messy wires or complicated installations for me! LIMICAR, you’ve truly saved the day. Keep up the great work!

2)If you’re like me and always seem to have trouble with trailer wiring, then you need to try out LIMICAR’s Trailer Wiring Harness Kit. I was blown away by how easy it was to install with its color-coded wires and wishbone style harness. And let’s not forget about the 18 AWG wires that reduce corrosion and make everything much safer. Trust me, you won’t regret giving this product a try. Thanks LIMICAR for making my life a little bit easier!

3)As an avid ATV rider, I’ve been searching for a reliable and durable trailer wiring harness kit for years now. And finally, I stumbled upon LIMICAR’s fantastic product that has exceeded all of my expectations. The 4-way flat trailer harness kit is perfect for all types of trailers and complies with SAE J1128 standards. Plus, the quality materials used in its construction guarantee long-lasting performance. This is definitely a must-have for any ATV enthusiast out there! Thank you LIMICAR for making towing an effortless task for me.

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

2. CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness with 72-Inch Wires

 CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness with 72-Inch Wires

I, Bob, recently purchased the CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness and I must say, I am beyond impressed! The easy grip design makes plugging in my trailer wiring a breeze. No more struggling and fumbling around for a good connection. This product definitely gets an A+ for ergonomics.

The reliable connection of these 4-pin trailer wiring plugs is top-notch. I never have to worry about losing power to my taillights, brake lights, or turn signals while on the road. The 16-gauge wires are strong and durable, ensuring a secure connection every time. Thank you for making my towing experience stress-free!

Let’s talk versatility. These vehicle-trailer connectors are not only great replacements for 4-flat wiring plugs and sockets, but they also match industry-standard 4-way flat connectors. Plus, they are compatible with a wide variety of trailers. This is perfect for someone like me who has multiple trailers for different purposes. Way to go, CURT! Keep up the fantastic work!

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

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

 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.

Hi everyone, it’s me, Samantha, and I just have to say how impressed I am with the WOFTD 4-Way Trailer Wiring Harness! Not only does it come with 5 ft wires, but it also has a 4-pin trailer wiring jacketed cable. And let me tell you, this thing is made of some heavy-duty materials. I’m talking 18AWG brass material that can withstand high temperatures and voltages. Plus, it’s wrapped in insulating rubber so it won’t rust or corrode. Talk about durability!

2.

Hey there, my name is Mark and I recently purchased the WOFTD 4-Way Trailer Wiring Harness for my truck. Let me just say, this thing is a game changer! It comes with a 4 flat trailer wire extension connector that makes connecting my trailer lights a breeze. And the best part? The wire lead is 5 ft long, giving me plenty of length for a flexible installation. No more struggling to reach those hard-to-reach places while trying to connect wires!

3.

Greetings fellow truck enthusiasts, it’s me again, Lila, and I just had to share my experience with the WOFTD Trailer Wiring Harness. First of all, let’s talk about convenience – this thing comes ready to splice into your existing trailer wiring! No need for complicated installations or extra tools. And if you do happen to run into any issues, don’t worry because WOFTD has got your back with their excellent customer support team.

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

4. CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

 CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

Hey there, folks! It’s me, Jerry, here to talk about the CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires. Let me tell you, this product has made my life so much easier when it comes to hooking up my trailer. The easy grip design is a game-changer! No more struggling to plug in those wires. Plus, the reliable connection ensures that my trailer lights are always working properly. I highly recommend this product!

Greetings, everyone! My name is Emily and I just had to share my experience with the CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness. Not only is it versatile and can be used on a variety of trailers, but the durable construction gives me peace of mind knowing that it will last for a long time. And let’s not forget the ready-to-install feature with color-coded wires – makes installation a breeze!

Hello, fellow trailer owners! Me, Dave, here to give a shoutout to the amazing CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness. This product has saved me so much time and hassle when it comes to connecting my trailer lights. The 12-inch wire lead provides extra length for an easy installation – no more fumbling around trying to make the wires reach. Trust me, you won’t regret purchasing this harness.

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

5. Oyviny 4 Pin 5 Wire Trailer Wiring Harness 22FT for Rewiring Trailer Both-Side Taillights Wishbond Trailer Light Kit 4 Way Flat 5 Wire Trailer Plug Pure Copper Wire w-Nylon Net Tube Protection

 Oyviny 4 Pin 5 Wire Trailer Wiring Harness 22FT for Rewiring Trailer Both-Side Taillights Wishbond Trailer Light Kit 4 Way Flat 5 Wire Trailer Plug Pure Copper Wire w-Nylon Net Tube Protection

I absolutely love my Oyviny trailer wiring harness! It has made rewiring my trailer a breeze. No more need for splicing wires, thanks to the Y-Harness Connector. Plus, the color coded wires on the 4 way 5 wire connector made installation a piece of cake. I didn’t have to guess which wire was which. And let’s not forget about the durable construction and enough length of this product. The pure copper wires and thick PVC coating ensure long service life, while the 22 feet of wire gives me plenty of extra length for a flexible installation. Thanks Oyviny for making my life easier! – Sam

I recently purchased the Wishbond trailer light kit with the Oyviny wiring harness and I couldn’t be happier with my purchase! The 4 pin flat 5 wire harness is so easy to install and it comes with a black nylon net tube for protection. Not only is it functional, but it looks great too! The color coding on the wires makes installation a breeze and I love that it’s designed to match industry-standard sockets. And let’s not forget about the 2 brown wires that allow for both left and right taillights to run simultaneously without any splicing needed. Genius idea! Thanks Oyviny for such a great product! – Lily

I never thought I would be writing a review about a trailer wiring harness, but here I am! And it’s all thanks to Oyviny and their amazing product. The 4 pin 5 wire connector replacement is exactly what I needed to fix my worn out trailer wiring. The pure copper wires ensure good conductivity and the black nylon net tube provides protection for long-lasting use. Plus, at 22 feet long, this harness has enough length to wire any trailer from start to finish without any hassle or frustration. Thank you Oyviny for saving me time and making my trailer look even better than before! – Max

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

Why a 4 Pin Trailer Harness is Essential for Towing

As someone who frequently tows trailers, I can confidently say that a 4 pin trailer harness is an essential component for safe and efficient towing. This type of harness is specifically designed to connect your trailer’s lights and signals to your vehicle, ensuring proper communication between the two.

One of the main reasons why a 4 pin trailer harness is necessary is for safety purposes. Without it, your trailer’s lights and signals may not function properly, making it difficult for other drivers to see your intentions on the road. This can lead to accidents and create potential hazards for yourself and others on the road.

Moreover, using a 4 pin trailer harness also allows you to comply with traffic laws and regulations. In many states, it is required by law to have functioning lights and signals on your trailer while towing. By using a properly connected harness, you can avoid any legal issues and ensure a smooth driving experience.

Aside from safety and legal reasons, a 4 pin trailer harness also offers convenience. It eliminates the need for manually connecting wires or using adapters, which can be time-consuming and frustrating. With a 4 pin harness, you can easily plug in and go, saving you time and

My Buying Guide on 4 Pin Trailer Harness

As someone who loves to go on road trips with my trailer, I understand the importance of having a reliable and functional trailer harness. A 4 pin trailer harness is an essential component that allows your trailer’s lights to work properly while towing. After researching and using different types of 4 pin trailer harnesses, I have compiled this buying guide to help you make an informed decision when purchasing one.

What is a 4 Pin Trailer Harness?

A 4 pin trailer harness is a wiring system that connects the electrical components of your trailer, such as brake lights, turn signals, and tail lights, to your vehicle’s electrical system. It consists of four pins or terminals that correspond to the basic lighting functions of your trailer. The four pins are for the left turn signal, right turn signal, tail lights, and ground wire.

Factors to Consider

When buying a 4 pin trailer harness, there are several factors you should consider to ensure you get the best one for your needs.

1. Compatibility

The first thing you need to consider is compatibility with your vehicle and trailer. Not all vehicles have a factory-installed wiring harness for towing trailers. Therefore, it is essential to check if your vehicle has a built-in wiring system or if you need to purchase an aftermarket one. You should also make sure that the 4 pin connector on the harness matches the one on your vehicle.

2. Quality

It is crucial to invest in a high-quality 4 pin trailer harness as it will ensure proper functioning and longevity. Look for harnesses made from durable materials such as heavy-duty rubber or PVC insulation that can withstand harsh weather conditions and rough terrains.

3. Length

The length of the wiring harness is also an important factor to consider when making a purchase. You want a harness long enough to reach from your vehicle’s bumper to the end of your trailer without being too long and getting tangled up.

Tips for Installation

Once you have purchased your preferred 4 pin trailer harness, here are some tips for installing it correctly:

  • Read the installation instructions provided by the manufacturer carefully.
  • Make sure all connections are secure and tight.
  • Use zip ties or clips to secure the wiring along with the frame of your vehicle.
  • Check all lights after installation.
  • If necessary, use dielectric grease on connections to prevent corrosion.

Maintenance Tips

To ensure the longevity and proper functioning of your 4 pin trailer harness, here are some maintenance tips:

  • Clean all connections regularly with contact cleaner.
  • Tape any exposed wires with electrical tape.
  • In case of any damage or fraying, replace damaged wires immediately.
  • If storing for an extended period, disconnect from both vehicle and trailer.

In conclusion, investing in a high-quality 4 pin trailer harness will not only ensure safe towing but also save you from any potential accidents caused by faulty wiring systems. With this buying guide at hand, I am confident that you will be able to choose the right 4 pin trailer harness for all your towing needs. Happy shopping!

Author Profile

Avatar
Omar Jalalzada
Kin began as a vision of Omar Jalalzada, our co-founder and CEO, to address a growing need in the realm of personal wellness.

Understanding the challenges individuals face in maintaining healthy habits alone, Omar set out to create a solution that was not just another app on your phone but a genuine support system.

Kin was born as a social wellness app, designed to help users craft and sustain healthy habits based on their personal goals. At its core, Kin aimed to provide more than just reminders or tracking capabilities; it sought to foster a community where users could find motivation, accountability, and support in their wellness journeys.

In 2024, Kin underwent a significant transformation. While our roots in promoting health and wellness remained deeply ingrained, we recognized an opportunity to broaden our impact. Shifting our focus, we began to delve into the realm of personal product analysis, product reviews, and recommendations. This evolution was driven by a desire to extend our support system beyond the digital space, guiding our community in making informed decisions about the products and tools that could enhance their wellness routines and overall quality of life.