Discover the Secret of Easier Trailer Wiring: Get the Best 4-Pin Harness Now!

If you’re looking for the best 4-pin trailer wiring harness, you’ve come to the right place. With so many options available in the market, it can be a perplexing task to decide which one to buy. But don’t worry – we have done the hard work for you and have compiled a comprehensive guide that covers all aspects of a 4-pin trailer wiring harness. From identifying the right product to understanding its installation and maintenance, this guide is a must-read for anyone planning to buy a 4-pin trailer wiring harness. So if you want to make an informed decision and get the most out of your investment, read on!

Why Best 4-pin Trailer Wiring Harness Is Necessary?

A 4-pin trailer wiring harness is necessary to connect a trailer to a vehicle. It provides power to the trailer lights, brakes, turn signals, and other components. A 4-pin harness is necessary because it ensures that all of the trailer components are receiving the proper voltage and current for safe operation. It also helps protect the vehicle from electrical damage due to faulty wiring. Having a properly functioning 4-pin harness is essential for safe and reliable towing.

Comparison Chart for Best 4-pin trailer wiring harness

Recommended Product Briefs on Best 4-pin trailer wiring harness Are Listed Below

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

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

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CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness, Black

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CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness, Black

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

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

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CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Subaru Ascent, Forester, Outback, Crosstrek, XV , Black

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CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Subaru Ascent, Forester, Outback, Crosstrek, XV , Black

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CURT 56217 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Highlander, Lexus RX350

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CURT 56217 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Highlander, Lexus RX350

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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

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The CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires is the perfect way to ensure your trailer lights are connected properly. With an ergonomic design for easy plugging, 16-gauge wires for reliable connection, a versatile 4-pin wiring design to match industry standards, and a durable black molded rubber housing that will never corrode, this trailer connector is ready to install and make your trailer connection as reliable as ever.

Why We Like This:
Easy Grip Plugging in your trailer wiring and lights is easy with the ergonomic design of this 4-pin trailer plug. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging.
Reliable Connection This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring. It has 16-gauge wires and can be used to connect the taillights, brake lights and turn signals.
Versatile Design This trailer connector makes a great replacement 4-flat trailer wiring connector. The 4-pin wiring design matches industry standard 4-way flat sockets and can be used on a wide variety of trailers.
Durable Construction For long lasting use and a reliable connection, the housing of this 4 pin trailer wiring plug is made from durable black molded rubber that will never rust or corrode.
Ready To Install Equipped with blunt cut color coded wires, this 4 prong trailer wiring plug comes ready to install with a 12 inch wire lead providing extra length for an easy installation.

Common Questions & Answers:
Q: How long are the wires?
A: The CURT 58030 Trailer Side 4 Pin Flat Wiring Harness comes with 12 inch wires for easy installation.
Q: Does it come with instructions?
A: Yes, it does come with instructions for simple installation and splicing into existing wiring harnesses.
Q: Is it weatherproof?
A: Yes, the durable black molded rubber housing is designed to never rust or corrode making it weatherproof!

Additional Product Information

Height 2
Length 7
Weight 0.05
Width 2

CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness Black

 CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness Black

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The CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness is the perfect solution for anyone needing to upgrade their vehicle towing capabilities. This wiring harness is designed specifically for vehicles with a USCAR socket, meaning it’s easy to install and provides a secure connection. It also features an ergonomic design, which makes it easy to plug and unplug your trailer lights. The durable black molded rubber housing ensures that this wiring harness will never rust or corrode.

Why We Like This
Easy Installation: No cutting or splicing needed as it ts into existing USCAR connection on your vehicle
Standard Connector: Allows you to connect trailer taillights, brake lights, and turn signals
Ergonomic Design: Makes plugging in and out of trailer lights easier
Durable Construction: The housing is made from black molded rubber that will never rust or corrode
USCAR-Specific: Designed specifically for vehicles with a USCAR socket

Common Questions & Answers
Q: Is this wiring harness compatible with my vehicle?
A: This wiring harness is designed specifically for vehicles with a USCAR socket. Please be sure that your vehicle has a USCAR socket before purchasing.
Q: How long will this wiring harness last?
A: The durable construction of the black molded rubber housing ensures that this wiring harness will last for many years.
Q: Does this product come with instructions?
A: Yes, this product comes with instructions on how to install the wiring harness.

Additional Product Information

Height 9
Length 6
Weight 0.705
Width 3
Size 6 x 3 x 9 inches

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

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

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:
The CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Wiring Harness with 72-Inch Wires is a great choice for anyone who needs to connect their vehicle and trailer. This wiring harness features 16-gauge wires, a durable black molded rubber housing, and a 4-pin wiring design that is compatible with a wide variety of trailers. The ergonomic design of this harness makes plugging in your trailer wiring and trailer lights easy, while the 72-inch wire loop allows for flexible installation. No matter what your needs, the CURT 58050 is an excellent choice for any vehicle or trailer connection job.

Why We Like This:
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

Common Questions & Answers:
Q1: Is this specific model compatible with my vehicle?
A1: Yes, this model is compatible with a wide variety of vehicles as it matches industry standard 4 way flat connectors.
Q2: How long are the wires?
A2: The wires are 72 inches long which provides plenty of extra length for flexible installation options.
Q3: Is this model easy to install?
A3: Yes, this model comes ready to install with color coded wires so all you need to do is splice them into your existing vehicle and trailer wiring setup.

Additional Product Information

Height 2
Length 7
Weight 0.3
Width 2

CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness Fits Select Subaru Ascent, Forester, Outback, Crosstrek, XV , Black

 CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness Fits Select Subaru Ascent, Forester, Outback, Crosstrek, XV , Black

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The CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness is the perfect way to equip your vehicle with the ability to tow a trailer. It plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer. This aftermarket, vehicle-trailer wiring harness is specifically designed for select years of the Subaru Ascent, Forester, Outback, Crosstrek and XV Crosstrek (factory tow package required), making it an ideal solution for those looking to add versatile towing options.

Why We Like This
Easy To Install: No cutting or splicing required! This 4-pin trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard connector.
Standard Connector: This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.
Vehicle Specific: Designed for select years of the Subaru Ascent, Forester, Outback, Crosstrek and XV Crosstrek (factory tow package required).
Reliable Power: Built with surface mount technology that generates less heat and optimal light intensity.
Dust Cover: Comes with a rubber dust cover that easily fits onto the 4-way flat connector when not in use.

Common Questions & Answers
Q: Does this product work on other vehicles?
A: No, this product is specifically designed for select years of the Subaru Ascent, Forester, Outback, Crosstrek and XV Crosstrek (factory tow package required).
Q: Is this product easy to install?
A: Yes! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard rear 4-pin trailer wiring connector – no cutting or splicing required!
Q: Is this product reliable?
A: Yes! The 4-way trailer light wiring is built with surface mount technology which generates less heat while providing optimal light intensity and durable performance.

Additional Product Information

Height 9
Length 4
Weight 0.75
Width 2

CURT 56217 Vehicle-Side Custom 4-Pin Trailer Wiring Harness Fits Select Toyota Highlander, Lexus RX350

 CURT 56217 Vehicle-Side Custom 4-Pin Trailer Wiring Harness Fits Select Toyota Highlander, Lexus RX350

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The CURT 56217 Vehicle-Side Custom 4-Pin Trailer Wiring Harness is the perfect solution for drivers who want to tow a trailer. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota Highlander and Lexus RX350 (factory tow package may be required). This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. The wiring harness is easy to install with no cutting or splicing required, so you can quickly and easily get your trailer ready for action.

Why We Like This
Easy to Install: No cutting or splicing required, just plug in and you are ready to go
Standard Connector: 4-way trailer light wiring is popular on a wide variety of trailers
Vehicle Specific: Designed for select years of the Toyota Highlander and Lexus RX350 (factory tow package may be required)
Reliable Power: Built with surface mount technology for optimal light intensity and durable performance
Dust Cover: Comes with a rubber dust cover that fits onto the 4-way flat connector when not in use.

Common Questions & Answers
Q: Is this product compatible with all Toyota Highlander models?
A: The CURT 56217 Vehicle-Side Custom 4-Pin Trailer Wiring Harness is designed for select years of the Toyota Highlander and Lexus RX350 (factory tow package may be required). Please check your vehicles compatibility before purchasing.
Q: Does this product come with instructions?
A: Yes, it comes with detailed instructions that provide step-by-step guidance on how to install the wiring harness.
Q: What type of electrical system does this product use?
A: This product uses a 3W electrical system.

Additional Product Information

Height 3
Length 9
Weight 0.881849048
Width 4

Benefits of Best 4-pin trailer wiring harness

1. Easy to Install: 4-pin trailer wiring harnesses are designed for a quick and easy installation, making them the perfect solution for DIYers and RVers.
2. Durability: The best 4-pin trailer wiring harnesses are made with durable materials that can withstand tough roads and vibrations, ensuring a long life of reliable performance.
3. Versatility: The 4-pin setup allows you to use the same wiring harness to tow multiple trailers, making it an efficient and cost-effective solution for those who need to tow multiple trailers.
4. Safety: A quality 4-pin wiring harness helps ensure proper connections between your vehicle and trailer, reducing the risk of electrical fires or other safety hazards.

Buying Guide for Best 4-pin trailer wiring harness

Types of 4-Pin Trailer Wiring Harness

When shopping for a 4-pin trailer wiring harness, it is important to know the different types available. The most common type of wiring harness is a flat four-pin harness, which includes four flat connectors that make contact with the vehicles electrical system. This type of wiring harness is typically used for small trailers and can be connected directly to the vehicles battery.

Another type of 4-pin trailer wiring harness is a round four-pin wiring harness. This type of wiring harness includes four round connectors that are connected to the vehicles electrical system. This type of wiring harness is usually used for larger trailers and can be connected directly to the vehicles battery or to an aftermarket power source.

What to Look For in a 4-Pin Trailer Wiring Harness

When shopping for a 4-pin trailer wiring harness, there are certain features and specifications you should look for. First, make sure that the wiring harness you are considering has been designed specifically for use with your vehicle. This will ensure that it will properly fit and provide adequate power transfer from your vehicles electrical system to your trailer.

You should also look for a wiring harness that has been tested and certified by an independent third-party organization to ensure it meets safety regulations and industry standards. In addition, make sure that the connectors on your chosen trailer wiring harness are corrosion resistant and waterproof, as this will help protect them from damage caused by moisture or harsh weather conditions.

Installation Considerations
Before purchasing a 4-pin trailer wiring harness, it is important to consider how you plan on installing it in your vehicle. If you plan on installing the wiring yourself, make sure you have all the necessary tools and materials such as wire cutters and wire strippers before beginning installation. It may also be helpful to read up on any installation instructions provided by the manufacturer before starting work on your project.

If you do not feel comfortable installing the trailer wiring yourself, there are many professionals who specialize in this type of work who can handle it for you at an additional cost. Be sure to research any professionals you use before hiring them to ensure they have experience with this type of work and can provide quality results at an affordable price.

The best 4-pin trailer wiring harness for your vehicle depends on your specific needs. Some options may be better suited for certain trailers than others, so it’s important to consider the type of trailer and the specific features you need from the wiring harness before making a purchase. Consider comparing the features of different brands, as well as the price, to find the best 4-pin trailer wiring harness for your vehicle.

Author Profile

Carl Frisch
Carl Frisch
With more than 30 years in the bicycle industry, I have a strong background in bicycle retailing, sales, marketing and customer service. I have a passion for cycling and a dedication to excellence. As a manager, I worked diligently to increase my capabilities and responsibilities, managing up to eleven mechanics (at Palo Alto Bicycles) and later as a working partner in my own store.

As the shop owner of Spoke n’ Word Cycles in Socorro, NM, the success of the mission was my responsibility, which I pursued passionately since we opened in 2003 through the spring of 2011. I am adept at managing owned and loan inventory, preparing weekly & annual inventory statements, and managing staff. The role as managing partner also allowed me tremendous freedom. I used this personal freedom to become more deeply involved in my own advancement as a mechanic, to spearhead local trail building, and advocating for cycling both locally and regionally.

As a mechanic, I have several years doing neutral support, experience as a team mechanic, and experience supporting local rides, races, club events. I consistently strive to ensure that bicycles function flawlessly by foreseeing issues and working with the riders, soigners, coaches and other mechanics. Even with decades of experience as a shop mechanic and team mechanic, and continue to pursue greater involvement in this sport as a US Pro Mechanic, and UCI Pro Mechanic.

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