Premium Quality 7 Pin Trailer Wiring Harnesses at Competitive Prices – Your Cost-Effective China Supplier

At WIRINGLABS , we specialize in providing high-quality 7 Pin Trailer Wiring Harnesses designed to meet the needs of the U.S. market. Our expertise and factory-direct pricing ensure you receive the best value and performance for your trailers.

Why Choose Our 7 Pin Trailer Wiring Harness?

Expert Design:
Our 7 Pin Trailer Wiring Harnesses are engineered by experts to provide reliable connections and durable performance. We use top-quality materials to ensure longevity and safety in all your trailer applications.

Superior Quality:
Every 7 Pin Trailer Wiring Harness is crafted with meticulous attention to detail. Our rigorous quality control processes guarantee that you receive a product that meets the highest standards of reliability and performance.

Factory-Direct Pricing:
By manufacturing our products in-house, we offer competitive, factory-direct prices. This means you benefit from significant cost savings without compromising on quality.

Easy Installation:
Our 7 Pin Trailer Wiring Harnesses are designed for easy, plug-and-play installation. With clear instructions and user-friendly components, you can quickly and efficiently connect your trailer’s electrical systems.

Product Features

Durable Construction:

High-quality materials that resist wear and tear
Weatherproof design to withstand harsh conditions
Robust connectors that ensure secure and stable connections

Enhanced Safety:

Reliable signal transmission for safe towing
Built-in safeguards to protect against short circuits and electrical faults
Compliance with industry standards for trailer wiring

Versatile Applications:

Compatible with a wide range of trailers
Suitable for various towing needs, including RVs, boats, and utility trailers
Customizable options to fit specific requirements

Cable for 7 pin Trailer Wiring Harness

WIRINGLABS choose high-quality purity copper cores cables as conductors, with low resistance, low heat generation and good electrical conductivity.

In order to strengthen the toughness and wear resistance of the cable, we use PVC jacket material instead of the traditional material.

The PVC coated wires or cable is thicker, but it is more wear-resistant, durable and easy to bend and pull when using in harsh environment.

7 pin trailer wiring junction box

This 7-pin trailer junction box can quickly and easily connect the wires to your trailer’s wiring.

Features:

Pre-wired, 7-way, double blade-style, trailer-end plug connects your trailer to your vehicle
Weatherproof, heavy-duty plastic junction box protects wires and terminals from the elements
No Wrong Wiring, Easy installation, wires color name printed on the top of screws for easy identification
ABS box materials for junction box

7 pin trailer wiring junction box dimension

Specs:

Overall box dimensions: 6.5″ long x 3.1″ wide x 2.2″ tall
Cord dimensions: 96″ long x 5/8″ diameter
Ring terminals and 4 open & 4 closed rubber grommets included

Wires color printed on the top of screws for easy identification

7 Pin RV Blade Plug (Field Assembly Type)

Heavy Duty Plastics

Durable Plastic materials for the RV blade plugs body will be never rust or corrode. Black or Grey Color optional.

Screw Wires Termination

Easy to fasten wires to RV blade terminals, Field assembly type for DIY Trailer Wiring.

Cable Gland Design

Featured with Cable Gland for Cable more reliable connection.

Customer Testimonials

Mark T., RV Owner

"The 7 Pin Trailer Wiring Harness from WiringLabs has been a game-changer for my RV. The installation was straightforward, and the quality is exceptional. Highly recommend!"

Emily R., Boat Trailer Owner

"I've tried several wiring harnesses, but none compare to the reliability and durability of WiringLabs' 7 Pin harness. Great product at a great price."

John D., Trailer Manufacturer

"The quality and reliability of WiringLabs' wiring harnesses have significantly improved our trailer products. Their competitive pricing and excellent customer service make them our preferred supplier."

Sarah L., Brand Owner

"Working with WiringLabs has been a game-changer for our business. Their custom solutions and factory-direct prices have helped us reduce costs while maintaining high standards."

James H., Utility Trailer Owner

"I've used several wiring harnesses over the years, and the 4 Pin from WiringLabs is by far the best. It's easy to install and incredibly reliable. Great value!"

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Lisa M., Small Boat Trailer Owner

"The quality of the 4 Pin Trailer Wiring Harness from WiringLabs is outstanding. It was easy to set up, and it works perfectly. Highly recommended!"

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Contact Us

Ready to experience the benefits of working with a true expert in trailer wiring harnesses? Contact us today!

OEM & ODM Available

Whether you want to have wiring as your design or want to design it differently, we can help you.

Lighting Fast Prototype

7 days guaranteed for wiring prototype samples to support fast delivery.

Start With Low MOQ

Our team support a minimum order quantity of 100 pcs for the first order.