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Trailer Connectors

Your Professional Trailer Connectors Supplier

 

Hangzhou Tonny Electric & Tools Co., Ltd. specializes in the manufacture of high-quality trailer connection cables. Our comprehensive product range includes trailer lighting cables, brake signal cables, and power supply cables in various specifications and lengths, designed to meet the requirements of diverse trailer connection systems.


We provide suitable cable solutions for standard trailers, off-road trailers, and specialized trailers alike. Additionally, we offer customization services to produce cables with specific specifications and connector types tailored to unique customer needs. Please feel free to contact us; we look forward to the opportunity to collaborate with you.

 

 
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Why Choose Us

Complete industrial chain

End-to-end capabilities covering r&d, product optimization, mass production, and customized solutions.

Advanced production capacity

More than 20 modern production lines supporting 1,000+ product models with flexible output.

Professional testing laboratory

Equipped with advanced testing instruments to ensure consistent quality and performance compliance.

OEM / ODM / OBM Services

Proven experience supporting private labels and customized product development for different markets.

 

Advantages of Trailer Connectors
 
Automotive Wire Harness Connector

Reliable electrical connection
Ensure stable power transmission between towing vehicles and trailers for lighting, braking, and signal systems.

 

Enhanced safety compliance
Provide consistent operation of brake lights, turn signals, and indicators, helping meet road safety and regulatory requirements.

 

Durable construction
Designed with corrosion-resistant materials and reinforced housings to withstand vibration, moisture, and harsh outdoor conditions.

 

Wide compatibility
Available in standard configurations (4-pin, 7-pin, etc.) to support various trailers, rvs, and towing vehicles.

 

Easy installation & maintenance
Plug-and-play designs simplify installation and reduce downtime during replacement or servicing.

 

Stable signal performance
Secure pin contact minimizes power loss and signal interruption, even during long-distance towing.

 

Long service life
Engineered for repeated coupling and uncoupling, maintaining performance over extended use cycles.

 

Applications of Trailer Connectors

Passenger vehicles & light trailers: Used to power lighting and signal systems for utility trailers, boat trailers, and small cargo trailers.

 

Commercial towing & logistics: Support reliable electrical connections for box trailers, flatbeds, and transport trailers in fleet operations.

 

Recreational vehicles (rvs): Enable power supply for lighting, braking systems, and auxiliary functions in travel trailers and caravans.

 

Agricultural equipment: Applied in farm trailers and machinery to ensure proper lighting and signaling during field and road use.

Construction & industrial trailers

Provide dependable power connections for heavy-duty equipment trailers operating in harsh environments.

Marine & boat trailers

Designed to withstand moisture and corrosion while maintaining stable lighting and signal performance.

Emergency & specialty vehicles

Used in trailers for emergency response, mobile service units, and specialty transport solutions.

 

Product Description
 

Item

Value

Place of Origin

China

Brand Name

SOAR

Model Number

Wiring harness

Application

Automobile

Product name

Custom Wire Harness Cable Assembly

Color

OEM Color

Length

Customized Length

Service

OEM ODM Accept

Pins

6PIN

Sample

Avaiable

Keywords

Cable Harness Assembly

Wire Gauge

22AWG

Quality

High-Quality

 

Delivery
 

Selling units

Single item

Single package size

10X10X10 cm

Single gross weight

1.000 kg

 

Lead Time
 

Quantity (pieces)

1 - 1000

> 1000

Lead time (days)

35

To be negotiated

 

 

Packaging & Shipping

 

productcate-612-485

 

 

FAQ

 

Q: How do I know which trailer light connector I need?

A: The right connector depends on your trailer's wiring needs. Small trailers typically use a 4-way flat, while larger trailers with electric brakes or additional features require a 6-way or 7-way connector for proper functionality. Always check your trailer's wiring specifications.

Q: What causes trailer light connectors to stop working?

A: Common issues include corrosion, dirt buildup, loose connections, broken wires, or blown fuses in the tow vehicle. Regular inspection and cleaning, along with applying dielectric grease, can prevent most problems and ensure a consistent electrical connection.

Q: How can I prevent corrosion in my trailer light connector?

A: To prevent corrosion, clean connectors regularly, apply dielectric grease, and store them in a dry location when not in use. Using a protective cover can also shield connectors from rain, dirt, and road debris, prolonging their lifespan.

Q: Why do my trailer lights work intermittently?

A: Intermittent lights usually indicate a loose connection, damaged wiring, or corrosion. Check that the connector is securely plugged in, wires are intact, and there is no moisture or debris affecting the contacts. Cleaning and reseating the connection often resolves the issue.

Q: Can I convert a 4-way connector to a 7-way connector?

A: Yes, you can use a wiring adapter to convert a 4-way flat to a 7-way round connector, but you May need additional wiring for electric brakes or auxiliary functions. Ensure proper wiring and compatibility for safe towing.

We are one of the most experienced trailer connectors manufacturers and suppliers in China for over 30 years, specialized in providing high quality customized service. Please rest assured to buy discount trailer connectors made in China here and get quotation from our factory. For price consultation, contact us.

7 Way Trailer Connector Socket, 12v 7 Pin Trailer Socket, Automotive Wire Harness Connector