Professional engineering team provides drawing design, prototype sampling and mass production service. We customize low-voltage body harness, high-voltage EV harness, sensor wiring and modified vehicle cables to fit all vehicle models; support custom wire specifications, connectors, shielding and waterproof structures without fixed standard inventory.
Oxygen-free tinned copper core + heat/oil-resistant automotive insulation; waterproof sealed connectors, anti-vibration wrapping design. All harnesses pass IATF16949 standard reliability tests including -40℃~150℃ temperature cycle, long-term vibration, waterproof and tensile tests, stable performance under harsh engine and chassis working conditions.
Full-automatic crimping, welding and testing production lines, every finished harness undergoes 100% conduction & insulation inspection. Products own ISO9001, IATF16949, RoHS, REACH certifications, stable mass delivery capacity for automakers, aftermarket refitting factories and engineering machinery brands.
YI HETAI is a professional manufacturer dedicated to customized wire harness solutions and precision cable production. We provide one-stop OEM & ODM service for automotive wiring looms, fully customizable according to your vehicle drawings, sample requirements, voltage standards and assembly layouts.
Automotive wire harness acts as the neural network of vehicle electrical systems, responsible for stable power supply and signal transmission among ECUs, sensors, control modules and all car electrical components. Our custom car harnesses adopt oxygen-free tinned copper conductors paired with high-temperature, oil-resistant XLPE/TPE automotive-grade insulation, equipped with waterproof, shock-resistant automotive connectors from well-known brands TE, JST, MOLEX. All products strictly comply with IATF16949, ISO9001, RoHS, REACH automotive industry standards, passing vibration, high-low temperature, waterproof, tensile and insulation breakdown aging tests to adapt to harsh underhood, chassis and cabin environments.
We support full personalized customization: wire gauge, length, shielding structure, waterproof grade (IP65/IP67/IP68), connector pinout, wrapping protection, high-voltage/low-voltage design can all be tailored to match fuel vehicles, new energy EVs, commercial trucks, engineering vehicles and special vehicles. Our automated production lines with precise terminal crimping, ultrasonic welding and 100% electrical testing guarantee stable connection, low contact resistance and zero short-circuit risks for long-term vehicle operation.
Wide Application Scenarios of Automotive Wire Harness
1. Passenger Fuel Vehicle Harnesses
Engine compartment harness, body wiring, dashboard harness, door & window control harness, lighting harness, air conditioning harness, audio & infotainment harness, connecting ECU, sensors, headlights, power windows and central control panels.
2. New Energy EV High & Low Voltage Harnesses
High-voltage orange-sheathed harness for battery packs, inverters, drive motors and charging systems (400V–800V DC); low-voltage harness for BMS, ADAS autopilot sensors, car display, T-box and vehicle control units, with full EMI shielding to eliminate signal interference.
3. Commercial & Engineering Vehicle Harnesses
Trucks, vans, buses, excavators, forklifts and agricultural machinery chassis harness, brake system wiring, instrument panel harness, durable against heavy vibration, mud, oil and extreme temperature fluctuations.
4. Special Modified Vehicle Harnesses
RVs, ambulances, logistics special vehicles, car refitting auxiliary wiring, customized multi-functional extended harnesses for aftermarket upgrade and modification projects.
Low MOQ Available
Custom Automotive Wire Harness Solutions
ISO 9001:2015 & IATF 16949 Certified
All Materials RoHS-Compliant
100% Fully Tested | Full Traceability Guaranteed
Fast Lead Times & Competitive Pricing
Flexible Customization, From Small Batches to Mass Production
Experienced Technical Team & Professional Support
About this supplier
Yihetai specializes in providing custom electrical wire harness solutions and precision wire & cable manufacturing. As an officially certified High Tech Enterprise in Xiamen, we hold the prestigious ISO9001:2015 and IATF 16949:2016 international quality management system certifications, testaments to our unwavering commitment to quality excellence and global compliance standards. With over two decades of profound expertise in the wire, cable, and custom electrical wire harness manufacturing industry, we have meticulously built a seamless full industry chain service ecosystem. Spanning from stringent raw material sourcing, iterative customized electrical wire harness solution, to efficient finished product delivery, our service model is engineered to cover every critical touchpoint of our clients' needs. Our core competitive advantages are deeply embedded in the entire value chain of production, sales, and delivering end-to-end value for global partners.
Is there any relevant certification for customized products?
We will confirm the certificates required for the product with the customer before customization, and complete all the agreed certifications before the product is delivered, and write it into the contract agreed by both parties.
What is your payment terms?
T/T 30% as deposit, 70% paid off before delivery. We will show you the photos of the products and packages before you pay the balance.
Can we mix color variants to achieve MOQ?
Sorry, we can only accept one color to meet the MOQ, because if the color is different, we need more labor.
Are they global versions?
Yes, our products are universal in all countries.
What is your sample policy?
We can provide the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Do you test all your goods before delivery?
Yes, we will do final inspection on the goods before delivery.
How about after-sales support?
We provide lifetime technical support, and our engineers provide 24-hour online technical support.
What is your delivery method?
FOB, CFR, CIF, EXW, DDU, Express Delivery.
