Product Overview
As a core component in automobile electrical architectures, this custom automotive wiring harness eliminates compatibility issues by offering direct customization based on vehicle models, electrical functions, and operating environments. Whether for passenger cars, commercial vehicles, or new energy vehicles (NEVs), it ensures stable power transmission and signal communication, laying a reliable foundation for the safe operation of on-board electronic equipment. Crafted with industry-leading materials and manufacturing processes, this automobile electrical wiring harness stands out for its durability, adaptability, and long service life.
Key Features
Automobile-Specific Compatibility
Tailored exclusively for automotive electrical systems, the harness is designed to match the voltage, current, and spatial layout requirements of different vehicle types. Its automobile electrical compatibility ensures seamless integration with engines, lighting systems, infotainment devices, and battery management modules.
Direct Custom Fit Design
We offer direct custom wiring harness services that skip unnecessary intermediary adjustments. By closely collaborating with customers to collect detailed requirements (such as wire length, terminal type, and connection points), we deliver a perfect fit that reduces installation time and minimizes modification risks.
Durable PVC Insulated Terminals
Equipped with PVC insulated spade terminal and wire end ring connector, the harness features excellent insulation performance, corrosion resistance, and wear resistance. The PVC material effectively protects internal conductors from moisture, dust, and mechanical damage, ensuring stable operation in harsh automotive environments.
High-Conductivity Core
The harness adopts high-purity copper conductors with high-conductivity wiring characteristics, enabling low-resistance power transmission and efficient signal transfer. This design reduces energy loss and prevents overheating, enhancing the overall efficiency of the automobile electrical system.
Vibration-Resistant Connection
Engineered to withstand the constant vibration and shock during vehicle operation, the vibration-resistant harness uses secure terminal crimping and fixing structures. It maintains tight connections even on rough roads, avoiding signal interruption or power failure.
Wide Temperature Adaptability
Operating reliably within a temperature range of -40°C to 125°C, the harness adapts to extreme weather conditions. From freezing winters to scorching summers—making it suitable for global automotive markets.
Specifications & Technical Details
Parameter | Details |
Conductor Gauge | 16-6AWG (supports customization based on current requirements) |
Insulation Material | High-quality PVC (flame-retardant grade: UL94 V-0) |
Rated Voltage | 12V/24V DC (compatible with mainstream automotive electrical systems) |
Operating Temperature | -40°C to 125°C |
Terminal Type | Wire end ring, spade terminal (customizable to other types) |
Wire Color | Black, red, blue, yellow, green (customizable per customer requirements) |
Harness Length | 0.5m-10m (customizable to specific installation needs) |
Waterproof Grade | IP65 (optional IP67 for harsh wet environments) |
Connector Pitch | 2.5mm, 3.0mm, 3.96mm (automotive-specific standard pitches) |
Current Rating | Up to 30A (varies by conductor gauge) |
Product Application Scenarios
Passenger Vehicle Electrical Systems
Ideal for wiring in sedans, SUVs, and hatchbacks—including headlight systems, dashboard electronics, air conditioning controls, power window mechanisms, and infotainment system connections. The custom automotive wiring harness ensures stable performance for daily driving needs.
Commercial Vehicle Power Distribution
Suitable for trucks, buses, and vans, the harness is used in power distribution boxes, brake system electronics, GPS tracking devices, and in-cabin lighting. Its durable structure withstands the long-distance and heavy-load operating conditions of commercial vehicles.
New Energy Vehicle (NEV) Electrical Modules
Critical for NEVs such as electric cars and hybrid vehicles, the harness connects battery management systems (BMS), charging ports, motor controllers, and on-board chargers. The new energy vehicle wiring harness meets high-voltage safety standards and ensures efficient energy transmission.
Special Purpose Vehicle Electronics
Applied in engineering vehicles (excavators, loaders), emergency vehicles (ambulances, fire trucks), and recreational vehicles (RVs). It supports specialized electrical functions such as emergency lighting, equipment power supply, and communication systems, adapting to unique operating scenarios.
Customization Service Process
Initial Consultation & Requirement Collection
Customers provide details such as vehicle model, electrical function requirements, terminal type, wire length, and environmental conditions. Our technical team conducts one-on-one communication to clarify customization needs and provide professional suggestions.
Design & Engineering Proposal
Based on collected requirements, our engineers design the harness structure, select appropriate materials, and create 2D/3D drawings. The proposal includes technical parameters, cost estimates, and delivery timelines for customer confirmation.
Prototype Development & Testing
We produce a small-batch prototype of the direct custom wiring harness and conduct strict tests (conductivity, insulation resistance, vibration resistance, temperature resistance) to verify performance. Test reports are provided to customers for approval.
Mass Production & Quality Inspection
After prototype approval, mass production begins with strict quality control at each process (wire cutting, stripping, crimping, assembly). Every finished harness undergoes 100% inspection to ensure compliance with technical standards.
Timely Delivery & Installation Guidance
We cooperate with reliable logistics partners to deliver products on time. Additionally, we provide installation manuals, wiring diagrams, and online technical support to assist customers with smooth installation.
Quality Assurance & After-Sales Support
Strict Factory Quality Control
Our factory implements ISO/TS 16949 automotive quality management system standards. From raw material procurement to finished product delivery, each link is monitored by professional quality inspectors to eliminate defective products.
Compliance with Automotive Industry Standards
The automobile electrical wiring harness meets international standards such as SAE (Society of Automotive Engineers) and IEC (International Electrotechnical Commission), ensuring compatibility and safety in global markets.
Comprehensive Warranty Period
We offer a 2-year warranty for standard products and a 1-year warranty for customized special-process harnesses. During the warranty period, we provide free repair or replacement for non-human-damaged products.
Responsive After-Sales Service
Our after-sales team responds to customer inquiries within 24 hours. For technical issues, we provide remote troubleshooting or on-site support (if required). We also collect customer feedback to continuously optimize product quality and customization services.
FAQ
How long does the customization of the automobile electrical wiring harness take?
For standard customization requirements (using common materials and terminals), the lead time is 7-10 working days. For special processes (e.g., high-temperature resistant materials, complex wiring), it may take 12-15 working days, depending on the customization complexity.
Can this harness be customized to fit my specific car model?
Yes. We support customization for all mainstream car models (e.g., Toyota, Volkswagen, BMW, Tesla) and niche models. Please provide the vehicle year, model, and specific electrical function requirements, and our team will design a perfectly matched custom automotive wiring harness.
Is the PVC insulation material resistant to high temperatures?
Our PVC insulation material meets UL94 V-0 flame-retardant standards and can withstand high temperatures up to 125°C. For extreme high-temperature environments (e.g., near the engine), we also offer optional cross-linked polyethylene (XLPE) insulation for enhanced heat resistance.
What is the maximum current rating of this wiring harness?
The maximum current rating depends on the conductor gauge. For 6AWG conductors, the rating can reach 30A, which is suitable for high-power automotive equipment such as electric motors and chargers. We will recommend the appropriate conductor gauge based on your current requirements.
Do you provide technical support for harness installation?
Yes. We provide detailed installation manuals, wiring diagrams, and video tutorials. If you encounter installation difficulties, our technical team is available for online consultation 24/7. For large-volume orders, we can also arrange on-site technical guidance.
