8 Best 4 Wire Trailer Connector for 2024

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The 4 wire trailer connector is an essential component for connecting your trailer to your vehicle, ensuring a secure and reliable electrical connection. As the year 2023 approaches, it's crucial to stay ahead of the game and invest in the best trailer connector available. In this article, we will be exploring the top 8 4 wire trailer connectors for 2023, providing you with detailed information and insights to help you make an informed decision. Whether you are a frequent traveler or occasional hauler, finding the perfect trailer connector is vital for a smooth and safe towing experience.

 

The CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires is a reliable and versatile trailer plug that makes connecting and disconnecting your trailer wiring and lights a breeze. With its ergonomic design featuring tabs on the top and bottom, it provides an easy grip for effortless plugging and unplugging. This 4-pin wiring plug is ready to splice into your existing trailer wiring and can be used to connect the taillights, brake lights, and turn signals. Made from durable black molded rubber, the housing ensures a long-lasting and corrosion-resistant connection. The 12-inch wire lead provides extra length for an easy installation. This trailer connector is compatible with industry-standard 4-way flat sockets and can be used on a wide variety of trailers. Overall, it offers a reliable and convenient solution for your trailer wiring needs.

Key Features

  • EASY GRIP. Ergonomic design with tabs for better grip.
  • RELIABLE CONNECTION. 4-pin plug ready to splice into existing trailer wiring.
  • VERSATILE DESIGN. Compatible with industry-standard 4-way flat sockets.
  • DURABLE CONSTRUCTION. Made from durable black molded rubber.
  • READY TO INSTALL. Blunt-cut, color-coded wires for easy installation.
  • Specifications

  • Color: Regular
  • Dimension: 7.00Lx2.00Wx2.00H
  • Pros

  • Easy to grip and plug in
  • Reliable and durable connection
  • Versatile and compatible design
  • Ready to install with color-coded wires
  • 12-inch wire lead for easy installation
  • Cons

  • Some customers experienced slow delivery
  •  

    The CURT 58030 Trailer-Side Wiring Harness is a top choice for anyone in need of a reliable and easy-to-install trailer connector. With its ergonomic design, durable construction, and versatile compatibility, it provides a hassle-free experience for connecting and disconnecting trailer wiring and lights. The color-coded wires and 12-inch wire lead further enhance the installation process. While some customers faced slow delivery, the overall performance and quality of this wiring harness make it a great investment. Whether you are a trailer owner or a DIY enthusiast, this product delivers on its promises and ensures a secure and efficient connection for your trailer’s electrical needs.

     

    The CURT 58380 Vehicle-Side and Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires is a versatile and durable solution for connecting your vehicle and trailer wiring. With an ergonomic design and easy-grip tabs, plugging in and unplugging is a breeze. The reliable 4-pin connectors can be spliced into your existing wiring and are compatible with a wide variety of trailers. Made from durable black molded rubber, these connectors are built to last and will never rust or corrode. Equipped with color-coded wires and a 12-inch wire loop, installation is quick and hassle-free.

    Key Features

  • Easy grip ergonomic design
  • Ready to splice into existing wiring
  • Versatile replacement for 4-flat wiring plugs
  • Durable black molded rubber construction
  • Color-coded wires and 12-inch wire loop for easy installation
  • Specifications

  • Dimension: 7.00Lx2.00Wx2.00H
  • Size: 4-Pin Trailer Wiring
  • Pros

  • Easy to grip when plugging in or unplugging
  • Reliable connection for taillights, brake lights, and turn signals
  • Compatible with a wide variety of trailers
  • Durable construction that will never rust
  • Ready to install with color-coded wires
  • Cons

  • Not a plug and play solution for some
  • Male ground lead may come loose
  • Some customers found it cheaply built
  •  

    The CURT 58380 Wiring Harness is a reliable and versatile option for connecting your vehicle and trailer wiring. With an easy-grip design and durable construction, it provides a secure and long-lasting connection. While it may not be a plug and play solution for everyone, the color-coded wires and 12-inch wire loop make installation relatively straightforward. However, some customers have experienced issues with the male ground lead coming loose, and a few have found the product to be cheaply built. Overall, if you’re in need of a 4-pin flat wiring harness, this CURT product is worth considering.

     

    The CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness is a reliable and easy-to-install solution for connecting your vehicle and trailer wiring. With an ergonomic design and tabs for a better grip, plugging in and unplugging is a breeze. The 16-gauge wires ensure a secure connection for taillights, brake lights, and turn signals. This versatile wiring harness is compatible with a wide variety of trailers and can be used as a replacement 4-flat wiring plug. Made from durable molded rubber, these connectors are built to last and will never rust or corrode. With color-coded wires and a 72-inch wire loop, installation is easy and flexible. Overall, this CURT 58050 wiring harness provides a reliable and durable solution for all your towing needs.

    Key Features

  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these vehicle-trailer connectors. They feature tabs on the top and bottom for a better grip when plugging in or unplugging
  • RELIABLE CONNECTION. These 4-pin trailer wiring plugs come ready to splice into your existing vehicle and trailer wiring. They have 16-gauge wires and can be used to connect the taillights, brake lights and turn signals
  • VERSATILE DESIGN. These vehicle-trailer connectors make great replacement 4-flat wiring plugs and sockets. The 4-pin wiring design matches industry-standard 4-way flat connectors and is compatible with a wide variety of trailers
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of these 4-pin trailer wiring plugs is made from durable black molded rubber that will never rust or corrode
  • READY TO INSTALL. Equipped with color-coded wires, these 4-prong trailer wiring connectors come ready to install. The 72-inch wire loop provides plenty of extra length for a flexible installation
  • Specifications

  • Color: Regular
  • Dimension: 7.00Lx2.00Wx2.00H
  • Pros

  • Easy grip design for effortless plugging and unplugging
  • Reliable 4-pin connection for taillights, brake lights, and turn signals
  • Versatile replacement for 4-flat wiring plugs and sockets
  • Durable construction with black molded rubber housing
  • Ready to install with color-coded wires and 72-inch wire loop
  • Cons

  • Too big for certain applications
  •  

    The CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Rubber Wiring Harness is a top-notch solution for connecting your vehicle and trailer wiring. With its ergonomic design, reliable 4-pin connection, and durable construction, it offers a hassle-free towing experience. The easy grip design and color-coded wires make installation a breeze, while the 72-inch wire loop provides flexibility. It’s a versatile replacement option for 4-flat wiring plugs and sockets, ensuring compatibility with a wide range of trailers. The only downside is its size, which may not be suitable for certain applications. Overall, this CURT wiring harness is a high-quality product that delivers on its promises.

     

    The CURT 58300 Vehicle-Side Trailer Wiring Harness Mounting Bracket is a high-strength and corrosion-resistant bracket designed to securely mount virtually any industry-standard 4-way flat connector. Made from solid steel with a black powder coat finish, this bracket provides strength and durability while resisting rust. It can be easily installed by bolting it directly onto your vehicle or using a tube clamp mount. The bracket has received positive reviews for its quality design, easy installation, and clean look. However, some customers have noted that it is not universal and may require modifications to fit certain connectors. Overall, this CURT mounting bracket is a reliable and affordable option for securely mounting your trailer wiring harness.

    Key Features

  • Standard fit for any industry-standard 4-way flat connector
  • Flexible mounting options
  • Made from high-strength solid steel
  • Corrosion-resistant black powder coat finish
  • Easy installation with bolt-on or tube clamp mount
  • Specifications

  • Color: Gloss black powder coat
  • Dimension: 7.00Lx2.00Wx2.00H
  • Pros

  • High-quality design
  • Securely connects trailer lights
  • Affordable price
  • Fast delivery
  • Cons

  • Not universal, may require modifications
  • Screws not included
  •  

    The CURT 58300 Vehicle-Side Trailer Wiring Harness Mounting Bracket is a reliable solution for securely mounting your trailer wiring harness. With its high-strength steel construction and corrosion-resistant finish, this bracket offers durability and longevity. While it may not be universal and may require modifications to fit certain connectors, it provides a secure and clean look for your trailer lights. The affordable price and easy installation further add to its appeal. If you are looking for a sturdy and reliable mounting bracket for your trailer wiring harness, the CURT 58300 is worth considering.

     

    The CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness with 60-Inch Wires is a reliable and easy-to-use solution for connecting your vehicle's taillights, brake lights, and turn signals to your trailer. It features an ergonomic design with tabs for easy plugging and unplugging, and the 16-gauge wires ensure a reliable connection. The durable black molded rubber housing ensures long-lasting use, and the blunt-cut, color-coded wires make installation a breeze. This versatile connector is compatible with industry-standard 4-way flat plugs, making it suitable for a wide variety of trailers. With its extra-long 60-inch wire lead, you'll have plenty of flexibility during installation. Overall, the CURT 58040 is a high-quality trailer wiring harness that provides convenience and durability.

    Key Features

  • EASY GRIP. Plugging in your trailer wiring is easy with ergonomic design.
  • RELIABLE CONNECTION. 16-gauge wires ensure a secure and durable connection.
  • VERSATILE DESIGN. Compatible with industry-standard 4-way flat plugs.
  • DURABLE CONSTRUCTION. Made from durable black molded rubber.
  • READY TO INSTALL. Blunt-cut, color-coded wires for easy installation.
  • Specifications

  • Dimension: 7.00Lx2.00Wx2.00H
  • Size: 4-Pin Trailer Wiring
  • Pros

  • Easy to grip for plugging and unplugging
  • Reliable and secure connection
  • Versatile design for various trailers
  • Durable construction for long-lasting use
  • Ready to install with color-coded wires
  • Cons

  • Does not include a dust cover
  • Does not include crimp terminals
  • Wire length may not be sufficient for all needs
  •  

    The CURT 58040 Vehicle-Side Trailer Wiring Harness offers a convenient and reliable solution for connecting your vehicle to a trailer. Its ergonomic design, durable construction, and compatibility with industry-standard plugs make it a versatile and practical choice. The 16-gauge wires ensure a secure connection, although some users may find the wire length to be insufficient for their specific needs. Additionally, the absence of a dust cover and crimp terminals may be a minor inconvenience. Overall, the CURT 58040 is a high-quality product that provides ease of use and durability. Whether you need to connect your taillights, brake lights, or turn signals, this trailer wiring harness is a dependable choice.

     

    The WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires is a reliable and high-quality product designed for connecting taillights, brake lights, and turn signals on trailers. With its 18AWG brass wire and insulating rubber coating, it ensures durability and protection against rust and corrosion. The 5-ft wire lead provides flexibility during installation. It also comes with a 4-pin trailer wiring plug that is easy to splice into your existing trailer wiring. The WOFTD Trailer Wiring Harness is a trusted and convenient solution for your trailer wiring needs.

    Key Features

  • WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 flat trailer wire Extension Connector – 5 ft
  • Made of 18AWG brass material with insulating rubber coating
  • Connect taillights, brake lights, and turn signals
  • 5-ft wire lead for flexible installation
  • Trailer Plug Adapter compatible
  • Specifications

  • Color: 5 Ft
  • Pros

  • High-quality and durable wiring harness
  • Easy to splice into existing trailer wiring
  • Flexible installation with a 5-ft wire lead
  • Trailer Plug Adapter compatibility
  • Cons

  • Wiring colors may not match standard RV and utility trailer coding
  •  

    The WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires is a reliable and convenient solution for connecting your trailer’s taillights, brake lights, and turn signals. With its high-quality construction and flexible installation, it provides a secure and efficient wiring connection. The only drawback is that the wiring colors may not match standard RV and utility trailer coding, which may require additional verification during installation. Overall, this wiring harness is a recommended choice for those in need of a dependable and hassle-free trailer wiring solution.

     

    The EXERAUO Trailer Wiring Harness Kit is a top-quality solution for safely and easily wiring your utility trailer lights. Made with high-quality materials and featuring strict quality assurance, this kit offers lasting performance and reliability. The kit includes a 21ft male and 4ft female trailer wiring extension, designed with 18 AWG color-coded wires for easy and safe wiring. The color-coded wires (white for ground, brown for tail lights, yellow for driver side stop/turn, green for passenger side stop/turn) plug into the 4-way flat connector, simplifying the installation process. With a 25ft harness kit, this wiring harness ensures ease of installation and reduces wiring time. Additionally, the product comes with a 30-day return/replacement service, guaranteeing customer satisfaction. Overall, the EXERAUO Trailer Wiring Harness Kit is a reliable and efficient solution for all your trailer wiring needs.

    Key Features

  • 4 Pin Flat Trailer Wiring Harness Kit
  • 21ft male & 4ft female trailer wiring Extension
  • Color coded wires for easy installation
  • 25ft harness kit to reduce wiring time
  • 30-day return/replacement service
  • Specifications

  • Size: 25FT Trailer Wire
  • Pros

  • Made of high-quality materials
  • Reliable and lasting performance
  • Color-coded wires for easy installation
  • Includes two wiring harnesses for ease of installation
  • Comes with a 30-day return/replacement service
  • Cons

  • Not compatible with magnetic trailer lights
  • Some customers found the wires to be too short
  •  

    The EXERAUO Trailer Wiring Harness Kit is a high-quality and reliable solution for wiring your utility trailer lights. With its color-coded wires, easy installation process, and a 25ft harness kit, this product ensures a hassle-free experience. The inclusion of a 30-day return/replacement service further adds to its appeal. However, it’s important to note that this wiring harness kit is not compatible with magnetic trailer lights and the wires may be too short for some customers. Overall, if you’re in need of a trustworthy trailer wiring solution, the EXERAUO Trailer Wiring Harness Kit is a great choice.

     

    The 4-Way Flat Trailer Connector with Snap Self-Closing Lid Cover is a heavy-duty 12V 4-pin trailer tow wire harness socket kit. It includes a ready-to-install 4-pin socket, a 7.8-inch pigtail, a mounting bracket, and hardware. The WeatherLock construction ensures that it is 100% watertight, keeping water and dirt out. The durable FiberCore composite construction is mechanically strong and UV-resistant. The socket has high-quality plated contacts that ensure many years of use. It meets all SAE J1239 testing and performance requirements. This trailer connector is perfect for vehicles without a factory trailer plug and comes with a spring-loaded hinged cover, making it more convenient than other alternatives with rubber covers. While there are no wiring installation instructions included, the product is of obvious high quality.

    Key Features

  • READY-TO-INSTALL kit includes 4-pin socket, pigtail, and mounting bracket
  • Weather Lock's 100% WATERTIGHT construction per IPX7 and IPX9K
  • DURABLE Fiber Core composite construction is mechanically strong and UV-resistant
  • HIGH-QUALITY plated contacts ensure many years of use
  • Meets all SAE J1239 testing and performance requirements
  • Specifications

    Pros

  • Convenient snap self-closing lid cover
  • Sturdy and weatherproof
  • Factory style vehicle side plug
  • Easy installation
  • Includes dielectric grease for electrical components
  • Cons

  • No wiring installation instructions
  • Bolts and nuts may not be durable with constant use
  •  

    The 4-Way Flat Trailer Connector with Snap Self-Closing Lid Cover is a high-quality and durable option for vehicles without a factory trailer plug. Its WeatherLock construction ensures that it is watertight, and the FiberCore composite construction makes it mechanically strong and UV-resistant. The snap self-closing lid cover adds convenience and longevity. The lack of wiring installation instructions may pose a challenge for some users, but the product overall is of great value. This trailer connector is a recommended purchase for those looking for a reliable and easy-to-install solution.

     

    4 Wire Trailer Connector Buyer's Guide

    What is a 4 Wire Trailer Connector?

    A 4 wire trailer connector is an essential component used to connect a vehicle's electrical system to a trailer's lighting system. It allows for the transfer of power between the towing vehicle and the trailer, enabling the trailer's lights to function properly while on the road. Consisting of four wires, each with a specific function, this connector ensures that all necessary signals are transmitted between the towing vehicle and the trailer.

    Benefits of Using a 4 Wire Trailer Connector:

    • Provides a secure and reliable connection between the towing vehicle and the trailer.
    • Ensures the trailer's lights function effectively, increasing visibility and safety on the road.
    • Enables the trailer to comply with legal requirements for lighting, signaling, and braking while being towed.
    • Allows for convenient and easy operation, minimizing installation and maintenance efforts.

    Key Considerations When Choosing a 4 Wire Trailer Connector:

    1. Trailer Compatibility: Ensure that the connector is compatible with your trailer's wiring system, taking into account the number and type of wires required for your trailer's lights and functions.
    2. Vehicle Compatibility: Consider the compatibility of the connector with your towing vehicle's electrical system. Check if your vehicle supports a 4 wire connector or if any additional adapters are needed.
    3. Durability and Weather Resistance: Look for a connector that is built to withstand various weather conditions and offers durability, as it will be exposed to outdoor elements during towing.
    4. Easy Installation: Select a connector that comes with clear instructions and is easy to install, even for individuals with limited technical knowledge. Avoid complicated wiring procedures that may lead to errors or difficulties during installation.
    5. Quality Connectors and Wires: Opt for connectors made of high-quality materials to ensure long-term reliability and prevent premature wear or corrosion. Similarly, using quality trailer wires is crucial for optimal performance and longevity.

     

    Frequently Asked Questions:

    Q: Can I install a 4 wire trailer connector by myself or do I need professional assistance?
    A: Installing a 4 wire trailer connector can typically be done by individuals with basic DIY skills. However, it is important to carefully follow the provided instructions and use proper tools to ensure a secure and reliable connection. If you are uncertain or uncomfortable with the installation process, consulting a professional is always a good idea.

    Q: What are the functions of each wire in a 4 wire trailer connector?
    A: Each wire in a 4 wire trailer connector serves a specific purpose:

    Q: How can I protect my 4 wire trailer connector from weather and corrosion?
    A: To protect your trailer connector, consider:

    Q: Are there any additional accessories I should consider for my 4 wire trailer connector?
    A: Depending on your specific needs and the trailer’s features, you might want to consider: