Highlights at a glance
Low MOQ Available
Custom Car 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
Our Custom Car Automotive Extension Cable Door Wiring Harness is a precision-engineered connectivity solution specifically designed for automotive door systems, tailored to meet the custom needs of various car models, aftermarket modifications, and automotive manufacturing. This wiring harness serves as a reliable bridge for transmitting power and signals between the car body and door components—including door locks, power windows, side mirrors, speakers, and door lights—ensuring stable and efficient operation even in frequent door opening and closing scenarios.
Crafted with high-quality automotive-grade materials, the harness features oxygen-free copper conductors (0.5-2.5mm²) for low resistance and excellent conductivity, wrapped in flame-retardant, wear-resistant PVC/XLPE insulation that resists high temperatures (up to 125℃), oil, moisture, and abrasion. The extension cable design solves the problem of insufficient original wiring length, making it ideal for door modifications, custom car builds, or replacement of aging/damaged door wiring. We offer full customization: cable length (10cm-5m), conductor count (2-16 cores), connector type (OEM-matching or custom), and wire color, perfectly adapting to different car makes (sedan, SUV, truck, EV) and specific door system configurations.
Each harness undergoes strict quality testing, including voltage resistance, insulation resistance, and fatigue testing, to ensure durability and safety under harsh automotive environments—withstand vibration, temperature fluctuations, and repeated bending without wire breakage or signal loss. Equipped with secure connectors (waterproof optional) and secure fixing clips, the harness is easy to install, fits seamlessly into the car door structure, and ensures long-term reliability, reducing maintenance costs and potential electrical failures. Suitable for both OEM automotive production and aftermarket customization, it provides a professional, tailored wiring solution for automotive professionals and enthusiasts.
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.
Since 2001, Yihetai Cable has been a professional Custom wireharness and cable assembly manufacturer, producing a large number of customized wire harness and cable assemblies. Our highly specialised harness systems are used in the automobiles,industry, new energy, electronics, home appliance, aviation,military, telecommunication, and many other high tech, indus-tries.
Superior Quality Assurance & Professional Packaging
We adhere to strict quality control standards throughout the entire production process, ensuring every wiring harness meets precise specifications and long-term reliability requirements. Each product is carefully packaged using industry-standard protection methods to guarantee safe transportation and delivery, minimizing any risk of damage during transit.
Full Compliance with Global Standards
As a highly professional wiring harness manufacturer, we ensure that all products are fully compliant with international certifications and regulatory requirements, including ISO9001:2015 and IATF 16949:2016. Our commitment to compliance guarantees that our solutions meet the stringent demands of automotive, industrial, and new energy applications worldwide.
Over 20 Years of Industry Experience – One-Stop Solutions
With more than two decades of expertise in wire harness and cable manufacturing, we provide comprehensive one-stop solutions—from design and engineering to production and final assembly. Our experienced technical team works closely with clients to deliver customized solutions that align with specific application requirements and performance standards.
Robust Manufacturing Capacity & Certified Innovation
Our 5,000㎡ modern production facility is equipped with advanced manufacturing and testing equipment, enabling efficient and scalable production. Backed by multiple patent certifications, we continuously invest in innovation to enhance product performance, safety, and manufacturing efficiency.
Trusted by 1,000+ Global Customers
We have successfully served over 1,000 clients across various industries, building long-term partnerships based on quality, reliability, and responsive service. Our growing customer base reflects the trust and confidence placed in our products and our ability to consistently deliver value.
20+ Years Specialized In Custom Wiring Harness And Cable Assembly
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.
