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Trailer wire harness assembly

Trailer wire harness assembly


A Trailer Wire Harness Assembly is a specialized system of electrical wiring designed to connect and power various components of a trailer. It ensures reliable electrical connections between the trailer and the towing vehicle, facilitating the operation of essential features such as lighting, brakes, and turn signals.


Key Features:


1.Comprehensive Connectivity: Integrates multiple wiring lines into a single, organized assembly, simplifying the connection between the trailer and towing vehicle.


2.Durable Construction: Built with high-quality materials to withstand harsh environmental conditions, including exposure to moisture, heat, and vibration.


3.Versatile Design: Available in various configurations to match different types of trailers and towing vehicles, ensuring compatibility and flexibility.


4.Enhanced Safety: Provides reliable connections for critical functions such as brake lights, turn signals, and tail lights, improving safety and compliance with road regulations.


5.Easy Installation: Designed for straightforward installation, often with plug-and-play connectors, reducing installation time and complexity.


6.Customizable Options: Can be tailored to specific requirements, including additional features like trailer brake controllers and auxiliary power supplies.


Applications:


1.Automotive Trailers: Connects electrical systems for lights, brakes, and signals, ensuring proper function and safety during towing.


2.Cargo Trailers: Facilitates the operation of interior lighting, electrical brakes, and other components.


3.Recreational Vehicles (RVs): Powers essential systems such as exterior lighting and brake lights, ensuring smooth operation during travel.


4.Utility Trailers: Connects electrical components for proper signaling and lighting, essential for safe towing.


A Trailer Wire Harness Assembly is essential for ensuring that all electrical systems in a trailer function correctly and reliably. Its robust design and versatile configurations make it a vital component for safe and efficient towing operations.


Advantages of Using Trailer Wire Harness Assembly


1. Enhanced Safety

Trailer wire harness assemblies ensure reliable connections for brake lights, turn signals, and tail lights, significantly improving safety during towing. This enhances visibility and communication with other drivers, reducing the risk of accidents.


2. Simplified Installation

Designed with user-friendly features, these harnesses often come with plug-and-play connectors, making installation straightforward and reducing the time and effort required. This allows for quick setup and minimizes downtime.


3. Durability and Longevity

Constructed from high-quality, weather-resistant materials, trailer wire harness assemblies are built to withstand harsh environmental conditions, such as moisture, heat, and vibration. This durability ensures a long lifespan and reduces maintenance costs.


4. Versatility and Compatibility

Available in various configurations, these harnesses can be used with different types of trailers and towing vehicles. This versatility ensures compatibility across a wide range of applications, from small utility trailers to large recreational vehicles.


5. Organized Wiring

By consolidating multiple wires into a single, organized assembly, trailer wire harnesses prevent tangling and simplify troubleshooting. This organized approach makes it easier to manage and maintain the wiring system.


6. Customizable Options

Trailer wire harness assemblies can be customized to meet specific requirements, such as incorporating additional features like trailer brake controllers and auxiliary power supplies. This customization allows for tailored solutions to suit particular needs.


7. Improved Functionality

A well-designed wire harness assembly ensures that all electrical components of the trailer function correctly. This includes powering interior lighting, electrical brakes, and other essential systems, enhancing the overall functionality of the trailer.


8. Compliance with Regulations

Using a trailer wire harness assembly helps ensure compliance with road safety regulations. Properly functioning lights and signals are crucial for legal towing, and these harnesses help maintain adherence to these standards.


9. Cost-Effective Solution

Investing in a trailer wire harness assembly can save money in the long run by reducing installation time, maintenance costs, and potential repairs due to faulty wiring. The durability and reliability of these assemblies provide a cost-effective solution for trailer wiring needs.


10. Enhanced Towing Experience

By ensuring all electrical systems are properly connected and functioning, trailer wire harness assemblies contribute to a smoother and more enjoyable towing experience. Reliable lighting and signaling improve driver confidence and overall road safety.


Trailer wire harness assembly

  • Custom Trailer Wiring Harness


    Equipping Your Vehicle with Proper Trailer Wiring

    Any vehicle towing a trailer requires a trailer wiring harness to safely connect the taillights, turn signals, brake lights and other necessary electrical systems.


    If your vehicle is not equipped with working trailer wiring, there are a number of different solutions to provide the perfect fit for your specific vehicle. Complete with a color coded trailer wiring diagram of each plug type, this guide walks through each available solution, including custom wiring, splice-in wiring and replacement wiring.

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Why Choose Us?

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200+ professional skill people work for your projects

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20+ Years Focus one Wire Harness Assembly

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6000+ Project Cases Experience

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6,000,000pcs Wire Harness Capacity per Year

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IPC/WHMA-A-620 Standard

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1000+ Overmold Developing Tools Experience

Trailer wire harness assembly Cases

1P SAE connector wire harness
1P SAE connector wire harness
Featuring a 1P SAE connector, this wire harness provides a convenient and standardized interface for connecting different devices or components. The SAE connector\'s robust construction ensures durability and resistance to environmental factors such as moisture, dust, and vibrations.
2P SAE connector wire harness
2P SAE connector wire harness
The 2P SAE connector wire harness, with its self-owned overmold design, offers a reliable and efficient solution for various electrical connections. This wire harness is specifically designed to accommodate the 2P SAE connectors, ensuring a secure and stable connection between devices.
3P SAE connector wire harness
3P SAE connector wire harness
The 3P SAE connector wire harness is a versatile and essential component in various industries. This wire harness consists of a 3-pin SAE connector, which is widely used for electrical connections in automotive, marine, and industrial applications.
3P SAE connector wire harness
3P SAE connector wire harness
Marine environments demand robust electrical connections due to exposure to moisture and saltwater. The 3P SAE connector wire harness excels in such conditions with its durable construction and corrosion-resistant materials. It facilitates efficient power distribution throughout boats or yachts while maintaining high levels of reliability.
3P SAE connector wire harness
3P SAE connector wire harness
In automotive applications, this wire harness plays a crucial role in connecting various electrical systems such as lighting, sensors, and control modules. It enables seamless communication between these components, ensuring optimal performance and safety on the road.
4P SAE connector wire harness
4P SAE connector wire harness
Due to its durability and reliability characteristics along with its ability to handle high currents safely; this type of wire harness is often utilized in off-road vehicles such as ATVs (All-Terrain Vehicles), motorcycles or boats where ruggedness is crucial.
4P SAE connector wire harness
4P SAE connector wire harness
This 4P SAE connector wire harness is widely used in the automotive industry for connecting various electrical components such as lights, sensors, switches, and motors. It simplifies the installation process by eliminating the need for individual wiring connections. Additionally, it allows for easy maintenance and troubleshooting as each pin has a specific function assigned to it.
5P SAE connector wire harness
5P SAE connector wire harness
With its durable construction and high-quality materials, this wire harness offers excellent resistance to environmental factors such as temperature variations, moisture, and vibrations. It ensures long-lasting performance even in demanding conditions.
7P connector wire harness
7P connector wire harness
The 7-pin trailer wiring is one of the most popular wiring configruations, particularly the traditional configuration versus the SAE J2863.

Trailer Plug Wiring Colors & Diagrams

Note: The ground wire color on all trailer plug types is always white.  Other colors vary in function, depending on the configuration.

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
Vehicle sideTrailer side
FunctionColor
+12 voltBlack
Electric brakesBlue
Reverse lightsYellow
Left turn / brakesRed
Right turn / brakesBrown
TaillightsGreen
GroundWhite

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140300398622421714030050949898
FunctionColor
+12 voltOrange
Electric brakesBlue
Reverse lightsGrey
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

The Difference in Configurations

Traditional configuration

The traditional 7-way RV blade format is typically used on Sth wheel trailers, travel trailers and campers.

SAE J2863 configuration

The SAE J2863 7-way RV blade format is typically used on gooseneck trailers, utility trailers, cargo trailers and equipment trailers.

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140300732239391714030083675510
FunctionColor
Auxiliary powerRed
Electric brakesBlue
Reverse lightsBlack
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140300989237361714030105688596
FunctionColor
+12 voltBlack
Electric brakesBlue
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140301229930531714030134979455
FunctionColor
+12 voltRed
Electric brakesBlue
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140301472918361714030157904724
FunctionColor
Reverse lightsBlue
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140301658138941714030174513978
FunctionColor
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

7-Way RV Blade

Traditional Configuration

Vehicle sideTrailer side
17140301854981361714030193838216
FunctionColor
Left turn / brakesYellow
Right turn / brakesGreen
TaillightsBrown
GroundWhite

Common Connectors by Trailer Type

Trailers are equipped with different plug types based on their electrical components.

The chart below provides examples of common trailers and the types of plugs they typically use.


Trailer TypeCommon Connector TypeAlternative Connector Types
Utility trailer

Utility trailer

4-way flat

4-way flat

6-way round

6-way round

7-way RV blade

7-way RV blade

Boat trailer without surge brakes

Boat trailer without surge brakes

4-way flat

4-way flat

7-way RV blade

7-way RV blade


1713866574321361

Boat trailer without surge brakes

1713866756112735

5-way flat

7-way RV blade

6-way round

7-way RV blade

7-way RV blade

1713866630562955

Boat trailer without surge brakes

1713866785450769

6-way square

1713867413672102

6-way round


1713866666781053

Boat trailer without surge brakes

1713866840521211

7-way RV blade

1713867373712373

6-way round

1713867357365848

7-way RV blade

1713866694199930

Boat trailer without surge brakes

1713867272451585

7-way RV blade

1713867025294970

6-way round


1713866714957740

Boat trailer without surge brakes

1713866968352254

6-way round

1713866999775115

7-way RV blade


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  • Custom Overmold SAE plug

    We are proud to offer our expertise in providing custom wire harness solutions. Our team of skilled professionals is dedicated to meeting the unique needs and specifications of our clients. With years of experience in the industry, we understand the importance of delivering high-quality wire harnesses that are tailored to specific applications.


  • Custom Wiring Connectors

    While some vehicles may not be equipped with a standard trailer wiring connector, they may have a special socket specifically intended for installing wiring, provided by the vehicle manufacturer. A custom wiring connector uses a single plug to plug into this factory socket and provide a standard trailer wiring connector.

  • 1713952853683405


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  • Custom Wiring Harnesses

    A custom wiring harness has multiple plugs that are used to 'T' into the vehicle's taillight assembly, drawing power directly from the taillights or from a direct battery connection and providing a standard trailer light wiring connector. While custom wiring harnesses usually require two or more connection points, splicing and soldering are still not needed.


  • Stable quality

    why our price always competitive but still offer high quality assembly service?

    1. Stringent supplier audit is conducted to ensure a consistent supply of high-quality raw materials.

    2. Impeccable IQC/IPQC/OQC quality control measures are implemented to significantly reduce the occurrence of defects.

    3. State-of-the-art automated wire cutting, stripping, tinning, and crimping integrated machines are extensively utilized in accordance with IPC/WHMA-A-620 standards.

    4. A comprehensive 100% continuity test is performed to guarantee that all products exhibit no circuit shorts, mismatches, or isolation breaks that could potentially cause harm.

  • 1717213948904984


  • 1717213996232826

  • Competitive Price

    Our skilled workers working with automatic machines have proven to be a winning combination, resulting in significant cost savings throughout our production process. By leveraging the expertise of our highly trained workforce and harnessing the efficiency of automated machinery, we have been able to streamline operations, optimize productivity and provide competitive price.


  • Free of Quote

    Please send us details of your require, also wire length, gauge, color, electric circuits, and order quantity. We will provide a quotation within three working days.

    Additionally, we can also offer pricing based on drawings or samples.

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How to Custom Your Wiring Harness

1715391162438397

FAQ

1. How to customized my own products?
Send your sample or drawing/schematic requests → Feedback with quotation(1~3days) → Confirm quotation and make deposit payment → Make overmold if needed (7 days) → Mold test → Making samples(1~3 days) → Samples test(Approval) → place order for Mass production(2~3weeks) → Quality checking → Packing → Delivery → After Service → Repeat Order.
2. Can you provide us with samples?
We specialize in customized designs and made Samples are available free of charge(Value below $5.00 per unit, final costs depend on real needs) Sample lead time 3~10 working days
3. What delivery time for the regular order?
We deliver quality products on time every time, within 30 days of receiving confirmed orders. We support customers picking up goods from our factory directly.
4. What payment do you support?
T/T, Credit Card, and PayPal are available.
5. Can you help export goods to us?
We support Door-to-Door Delivery Services, small packages by Express like DHL, FedEx, UPS, etc. large volume shipping by air, sea, and train. We support customs and tax clearance, and small value no customs duties.
6. What is the warranty policy?
After Sales Service:Continuous and satisfactory service for repair or replacement, Strong support for failure analysis. Warranty Time:1~3 years.
7. HelpBuy Support:
If you require procurement assistance from other factories and consolidation of all goods into a single batch shipment, we can offer our buying service to help facilitate the process and ensure proper packing for shipping to your location.
8. Warehouse Support:
You order from us but do not require all goods to be shipped at once, we are able to assist in separating multiple batches according to your preference and ship them to you in any desired quantity.

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HOOHA WIRE AND CABLE PRODUCTS
Hooha Harness is a leading contract manufacturer dedicated to providing custom wire harnesses, over-mold cables, DC power cables, and wire & cable harness assembly service.
CONTACT US

Address: 920, No.13, Baida West Road, Humen Town, Dongguan City, Guangdong Province, China. 523000

Whatsapp: +86-13532747009

Tel: +86-0769-89212228

Phone: +86-13532747009

Email: sales@hoohawirecable.com

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