The Automotive Harness Manufacturer!
Ningbo MingXi Industry and Trade Co., Ltd, established in 2014, is a leading provider of integrated electronic manufacturing services. Formerly known as Ningbo MingTeHan Electronics Co., Ltd, the company specializes in PCB production and R&D, SMT assembly, DIP assembly, testing, inspection, aging, full product assembly, and wire harness manufacturing.
We specialize in the production of a wide range of electronics, including single side rigid PCB, double sided rigid PCB, multilayer rigid PCB, high frequency rigid PCB, smartphones motherboard PCBA, smart speaker PCBA, standard wire harnesses, gang smart touch Switch, and more.
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Automotive Wiring HarnessAt Mingxi, we specialize in designing and manufacturing highly reliable and precision-customized wiring harnesses for the automotive and electronics industries. Our products are developed under...view more
Why choose us
Rich Experience
Our core team has over 10 years of experience in electronics manufacturing, enabling us to quickly respond to customer needs and provide professional solutions.
Quality Assurance
We adhere to strict international quality standards (such as ISO 9001 and IPC-A-610) to ensure that every product meets the highest customer expectations.
Comprehensive Service Support
From product development, design optimization (DFM), prototyping to mass production, we provide one-stop services to help customers reduce time-to-market.
Less shorting occurrence: With an automotive wire harness, the possibility of circuit shortage is less. Because the harness assembles multiple wires into well-laid bundles. These bundles are non-flexible and not loose.
Quick setup: Installing a wire harness can be time-taking with the many wires and circuits to connect.with an automotive wire harness, you only need to connect a single unit, and all wires will work. Besides making setup easy, you'll also avoid making wrong connections.
Better fuel usage: Installing an automotive wire harness will ensure your car optimizes fuel usage. In the long run, you save money on gas.
More durability: Cars often need to endure harsh conditions. There are only a few examples of freezing winter weather, heavy downpours, and heat waves. An automotive wire harness will still do its work under such conditions. These harnesses are made with sturdy materials that don't easily crack.

Composition of the Automotive Wire Harness

Wires are cut and pressed into branches using wire cutting machines (single branch, press-fit branch, hinge branch).
The wire is divided into different specifications, including 0.35, 0.5, 0.8, 1.0, 1.25, 2.0, 4.0, 6.0, 10.0, 15.0, and 25.0, which are commonly known as wire diameter. Wires of different diameters have different copper wire strands and insulation outer diameters. The diameter of the wire determines its thickness.
Wire colors: They include black, brown, red, orange, yellow, green, blue, purple, gray, white, and pink, with each color corresponding to a respective letter abbreviation.
Wire types can be classified as B, C, H, G, etc. They can also be classified based on their temperature resistance as T2, T3, or T4.
There is also a special type of wire called a shielded wire, which is primarily used to prevent interference.
Types of Wiring Harnesses in a Car
Air Conditioning Harness
The air conditioning (A/C) harness connects the parts and systems that control your cabin's temperature. That includes the A/C, heater, and related electronics.
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Engine Compartment Harness
The engine compartment harness connects the battery to the alternator, spark plugs, ignition coils, and other crucial components. It also sends signals to the main computer to monitor and control the car's performance.
02
Floor Harness
The floor harness connects the wires under your vehicle to their intended part or system to ensure the vehicle's optimal performance.
03
Interior Harness
The interior harness lets you control different parts in your vehicle without them interfering with one another, preventing issues when using them simultaneously. It also helps power the lights, power windows, locks, and other interior components by connecting them to the electrical system.
04
Main Harness
The main harness provides power to most of the components on the dashboard, such as the headlights, tail lights, and turn signals. It also centralizes sub-harnesses to be connected to, providing additional power if necessary.
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Packaging & Shipping

As one of the leading automotive harness manufacturers and suppliers in China, we warmly welcome you to buy bulk automotive harness made in China here from our factory. For customized service, contact us now.











