Custom Car 4-Pin Plug Fuel Injector Wire Harness
Our premium automotive fuel injector wire harnesses feature precision-engineered 4-pin connectors with GXL-grade wiring rated for temperatures from -40°C to 125°C. Engineered for optimal electrical performance with less than 0.5V voltage drop, these harnesses ensure precise fuel injector operation and meet IATF16949 quality standards for automotive applications.
Designed for both OEM replacement and performance applications, our custom wire harnesses deliver reliable connectivity and exceptional durability in demanding engine environments.
IATF16949 Certified Quality
All our automotive wire harnesses are manufactured under IATF16949 quality standards, ensuring reliability and performance in critical automotive applications.
Custom Design Flexibility
We support fully custom designs with various lengths, connector configurations, and wire gauges to meet your specific fuel injection system requirements.
Product Features
Technical Advantages
Premium Construction Features
- GXL automotive-grade wire for superior durability
- Heat shrink tubing for thermal protection
- Precision 4-pin connectors for secure fit
- Weather and chemical resistant materials
Production Capabilities
Manufacturing Excellence
- IATF16949 certified production facilities
- Custom design and engineering support
- Rigorous quality control testing
- Scalable production from prototypes to mass volumes
Technical Specifications
1 Connector Specifications
4-pin automotive grade connectors with secure locking mechanism and gold-plated terminals for optimal conductivity
2 Wire Specifications
Premium GXL automotive wire with temperature rating of -40°C to 125°C, featuring copper conductors and cross-linked polyethylene insulation
3 Protection & Durability
• Heat shrink tubing at critical connection points
• Abrasion-resistant wire jacketing
• Chemical and oil-resistant materials
• UV protection for extended engine bay life
4 Electrical Performance
• Voltage rating: 50V DC
• Current capacity: 10A per circuit
• Voltage drop: <0.5V at rated current
• Insulation resistance: >100MΩ
Automotive Applications
Fuel Injection Systems
- Direct replacement for OEM fuel injector harnesses
- Performance and racing fuel system upgrades
- Engine conversion and swap applications
- Diesel common rail injection systems
Engine Management
- ECU to fuel injector connectivity
- Sensor and actuator wiring integration
- Engine wiring harness assemblies
Automotive Sectors
- OEM automotive manufacturing
- Aftermarket performance upgrades
- Automotive repair and restoration
custom car 4pin plug auto fuel injector wire harness




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How to custom your own wire harness?
Send your sample or drawing/schematic for quote price→ Feedback with quotation(1~3 days) → Confirm quotation → Arrange sample you for approval→ [Make mold if needed (7 days) →Mold test] → Making samples(1~3 days)→Samples test(Approval) →place order for Mass production(2~3 weeks)→Quality checking→Packing →Delivery →After Service →Repeat Order.