Yuyao Mideal Electric Co., Ltd. is one of the leading manufacturers and suppliers of 7 pins trailer spring cable in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale cheap 7 pins trailer spring cable made in China here from our factory.
7 Pins Trailer Spring Cable
Our 7 core trailer cable is designed for trailer electrical systems that require more circuits than a basic 5-core configuration. Seven individually insulated conductors are combined within one outer sheath, providing an organized wiring solution for lighting, signalling and additional electrical functions between a towing vehicle and compatible trailer.
The 7 core trailer wire is widely suited to trailer applications where several independent circuits need to operate through one cable connection.
Compared with a 5-core trailer cable, the additional conductors provide greater flexibility for more complete trailer electrical systems. Compared with a 15-core cable, the 7-core configuration remains relatively compact for applications that do not require the larger number of circuits associated with more complex commercial vehicle systems.
Key Features
- 7-pin trailer cable for multi-function electrical connections
- Coiled spring design for controlled extension and retraction
- Helps reduce cable dragging, tangling, and excess slack
- Suitable for trailer lighting and auxiliary electrical circuits
- Durable connector and cable construction
- Flexible configuration for different trailer applications
- Custom wire gauge, length, connector, and spring dimensions
- Suitable for OEM, ODM, and bulk supply

Product Specifications
|
Item |
Details |
|
Product Type |
7 Pins Trailer Spring Cable |
|
Application |
Trailer / Towing |
|
Pin Quantity |
7 Pins |
|
Connector |
7-Pin Trailer Connector / Customized |
|
Cable Type |
Coiled Spring Cable |
|
Conductor |
Copper / Customized |
|
Cable Length |
Customized |
|
Extended Length |
Customized |
|
Wire Size |
Customized |
|
Jacket Material |
PVC, TPU, or customized |
|
Rated Voltage |
According to application requirements |
|
Rated Current |
According to configuration |
|
Spring Diameter |
Customized |
|
Application |
Trailers, caravans, RVs, utility trailers, and towing vehicles |
|
Packaging |
Standard or customized |
Suitable for a Broad Range of Trailer Applications
The balance between conductor count and cable size makes 7 wire trailer cable suitable for many towing and trailer electrical applications.
Potential applications include:
- Utility trailers
- Cargo trailers
- Car trailers
- Boat trailers
- Caravans and recreational trailers
- Equipment trailers
- Agricultural trailers
- General trailer wiring harnesses
Where a trailer requires more electrical functions than basic lighting alone, a 7-core configuration can provide additional circuit capacity without moving to a much more complex multi-core cable.

Custom 7 Core Trailer Cable Manufacturing
We provide custom 7 core trailer cable manufacturing for trailer manufacturers, automotive electrical suppliers, wiring harness manufacturers, distributors and OEM/ODM customers.
Available customization can include:
- Conductor cross-section
- Conductor color coding
- Cable length
- Insulation material
- Outer jacket material
- Cable outer diameter
- Surface printing and marking
- Connector termination
- Custom packaging
For OEM projects, provide your wiring diagram, conductor specification, cable length, trailer connector type, operating environment and required electrical functions so that the cable construction can be matched to the trailer system.
Looking for a customized 7 pins trailer spring cable?
Send us your wiring diagram, connector type, cable length, wire specification, spring dimensions, and application details for product configuration and quotation.
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