professional Customized 5 wire trailer harness to 4 wire

Professional Custom Trailer Wiring Harness Solutions

We specialize in high-quality, custom trailer wiring harnesses for seamless vehicle-to-trailer connectivity. Our products include the versatile Customized 5 wire trailer harness to 4 wire, ideal for adapting newer trailers to older vehicle systems, ensuring full functionality for lighting, brakes, and signals.

For heavy-duty applications, our reliable 7 way trailer wire harness and 7 pin trailer wire harness provide complete circuit coverage, supporting functions such as electric brakes, auxiliary power, and reverse lights. We also offer a standard 5 wire trailer harness for trailers with basic lighting and braking needs, and a simple yet efficient four wire trailer harness for essential light-based functions.

All harnesses are built with OEM-grade materials, corrosion-resistant connectors, and durable jacketing to perform reliably in tough conditions. Whether you need a custom solution or a ready-made harness, we ensure perfect fitment, clear labeling, and hassle-free installation.

Boost your trailer’s performance and safety—message us today for a custom quote or technical support!

Key Features & Benefits:

• High-Conductivity Conductors: Utilizing 99.99% oxygen-free copper for high purity, low resistance, anti-aging properties, and extended service life. This ensures minimal energy loss, reduced heat generation, and superior current load capacity.

• Durable Insulation & Sheathing: Made from environmental protection high-strength PVC or neoprene, offering excellent abrasion resistance, tensile strength, corrosion resistance, waterproofing, flame retardancy, oil resistance, and weather ability. Ideal for both indoor and outdoor use, even in harsh or moving environments.

• Stringent Quality Control: Guarantees uniform thickness of insulation and sheath with very low eccentricity. Each harness undergoes high-voltage testing to ensure no breakdowns, providing ultimate safety and reliability.

• Available Configurations: Choose from sheath colors including all black, white inner with orange outer, white inner with black outer, or white inner with blue outer.

• Certifications & Testing: Our products comply with CCC, CE, ISO9001:2008, and ROHS standards. They have passed third-party tests for high-temperature resistance (105°C), low-temperature resistance (-40°C), and flame retardancy.

• Common Specifications: Available in cross-sections from 10mm² to 120mm² (10mm, 16mm, 25mm, 35mm, 50mm, 70mm, 95mm, 120mm) to meet diverse power requirements.

Applications: Perfect for use as welding cable, torch wire, welding machine wire, battery cables, power leads for cutting tools, and grounding applications.

Request a free quote for your custom wiring harness needs and experience the difference in quality and performance!

Specification

Customizing the wiring harness only requires four steps!

1:Please provide your design drawings, specifications, or samples.

2:We will review the drawings and provide you with the most competitive quote.

3:Upon your confirmation of the drawings and price, we can proceed with mass production or provide you with a sample first to ensure quality.

4:Finally, we will carefully package and ship your order promptly via the fastest available method.

product display:

Our factory and production lines

FAQ

Q1:What are the different types of wire harnesses?

A:Some of the most popularly used wire harnesses are flat harnesses, ribbon harnesses, EMI shielded harnesses, RF harnesses, airborne looms, and military looms. 

Q2:What is a wire harness?

A:A wire harness, also known as a cable harness or wiring assembly, is a structured set of wires, cables, and connectors bundled together into a single unit. Its primary purpose is to transmit electrical power and signals efficiently. By binding multiple cables with materials like conduit, tape, or sleeves, it simplifies installation, improves organization, and protects the components from abrasion, moisture, and heat. This crucial component is used to provide reliable connectivity and streamlined manufacturing in countless industries, including automotive, aerospace, industrial machinery, and consumer electronics.

Q3:Who makes the best wiring harness?

A:Of course, it's Xiamen Kehan Electronics Co., Ltd. - one of the best wire harness suppliers in China.