| Specification Category | Technical Specifications |
|---|---|
| Compatible Machine Models | Komatsu PC300-7E0, Komatsu PC350-7E0LC Excavators |
| COGENG Part Number | CG-KOM-HD-MH15 |
| Replaces OEM Part Number | 207-06-75111 |
| Product Name | Heavy-Duty Main Wiring Harness Assembly |
| Application Scope | Complete excavator electrical system integration |
| Wire Specifications | Military-grade TXL insulation (-50°C to 150°C), extreme oil/fuel/abrasion resistance |
| Connector System | IP68 rated sealed connectors with advanced locking mechanisms |
| Quality Assurance | 11-stage validation including salt spray corrosion and extended vibration testing |
| Warranty Coverage | 5,000-hour heavy-duty warranty |
| NO | Number | Name | Qty |
| 1 | 207-06-75111 | WIRING HARNESS | 1 |
| 20Y-06-31660 | FUSIBLE LINK | 1 | |
| 22U-06-11270 | FUSIBLE LINK | 1 |
Complete System De-energization: Execute full shutdown procedure including primary and secondary battery disconnection, main power isolation, and verified capacitor discharge period (minimum 20 minutes)
Comprehensive Pre-Installation Documentation: Create detailed photographic and video records of existing harness routing, connector orientations, and all mounting point locations
Professional Connector Management: Use appropriate tools to release advanced locking mechanisms - identify connector types before disconnection and handle with care
Systematic Component Audit: Conduct thorough inspection of all sensors, control modules, and mating connectors for signs of damage, corrosion, or pin deformation
Precise OEM Routing Implementation: Follow exact factory routing path, ensuring proper seating in all clamps, guides, and protective conduits while maintaining critical clearances
Advanced Connection Verification: Implement sequential connection process using provided checklist, verifying all connectors achieve positive lock engagement and seal compression
Comprehensive System Commissioning: Perform staged power-up sequence, system initialization, and complete functional validation using official Komatsu diagnostic equipment
