Automotive Wire Harness
High-reliability wire harnesses for automotive applications. From traditional vehicles to EVs, we deliver quality that meets the demanding standards of the automotive industry.
Automotive Applications
Wire harness solutions for every system in modern vehicles.
Engine Compartment
High-temperature resistant harnesses for engine sensors, fuel injection, and ignition systems
Body Wiring
Interior lighting, power windows, door locks, and seat controls
EV/HEV Systems
High-voltage battery cables, charging systems, and motor connections
ADAS & Safety
Sensor connections for cameras, radar, and collision avoidance systems
Instrumentation
Dashboard clusters, infotainment, and driver information systems
Exterior Systems
Headlights, taillights, mirrors, and weatherproof connectors
Built for Automotive Excellence
Our automotive wire harnesses are designed to withstand the harsh conditions of vehicle environments - extreme temperatures, vibration, moisture, and chemicals. Every harness is manufactured to automotive quality standards with full traceability.
- IATF 16949:2016 certified facilities
- PPAP documentation support
- 100% electrical testing
- Pull force and crimp cross-section analysis
- High-temperature and chemical resistant materials
- Sealed and waterproof connector options
- Full lot traceability
- Kanban and JIT delivery programs

Technical Specifications
Our automotive wire harness manufacturing capabilities.
EV & Hybrid Vehicle Harnesses
Specialized high-voltage wire harnesses for electric and hybrid vehicles. We understand the unique requirements of EV applications including EMI shielding, high-voltage safety, and thermal management.
- High-voltage battery pack cables
- Motor and inverter connections
- Charging system harnesses
- BMS (Battery Management System) wiring
IATF 16949 Certified Automotive Wire Harness Manufacturing Excellence
As an IATF 16949 certified automotive wire harness manufacturer, OurPCB delivers precision-engineered wiring solutions for OEMs and Tier 1 suppliers worldwide. Our wire harness products meet the rigorous quality and reliability standards demanded by the global automotive industry.
We manufacture complete car wiring harness systems including engine compartment harnesses designed for temperatures up to 150°C, body wiring for interior systems, and exterior harnesses with IP67/IP69K waterproof sealing. Our automotive cables utilize high-temperature wire types including XLPE, silicone, and fluoropolymer insulations that withstand harsh underhood environments.
For the growing electric vehicle market, we provide specialized high-voltage wire harness solutions for battery pack connections, motor inverters, and charging systems. Our HV harnesses incorporate orange jacket identification, HVIL safety interlocks, and EMI shielding per SAE J1654 and ISO 6722 standards.
Our manufacturing capabilities include automated wire processing, precision crimping with cross-section analysis, ultrasonic welding, and 100% electrical testing. We support complete PPAP documentation packages including control plans, FMEA, capability studies, and dimensional reports. Our testing capabilities ensure every harness meets your specifications.
We serve all major automotive connector systems including TE Connectivity, Molex, Yazaki, Sumitomo, Aptiv, and JAE. From 48-hour prototypes to high-volume production, we support your automotive program with Kanban delivery, JIT scheduling, and flexible ordering with no MOQ. Contact our automotive team to discuss your custom wire harness requirements.
Automotive Wire Harness FAQ
Both our China and Philippines facilities are IATF 16949:2016 certified, the international standard for automotive quality management systems. We also comply with customer-specific requirements from major OEMs and follow PPAP (Production Part Approval Process) procedures.
Yes, we manufacture high-voltage harnesses for electric and hybrid vehicles including battery pack cables, motor connections, and charging system harnesses. We work with specialized HV cables rated up to 600V and use appropriate shielding and safety features.
We work with all major automotive connector manufacturers including TE Connectivity, Molex, Yazaki, Sumitomo, Aptiv (Delphi), JAE, and others. We can source connectors or work with customer-supplied components.
Yes, we provide full PPAP documentation packages including control plans, FMEA, capability studies, dimensional reports, material certifications, and all other required elements for automotive qualification.
Start Your Automotive Project
From prototypes to production, we deliver automotive-grade wire harnesses with IATF 16949 certification and full PPAP support.