| Specification Category | Technical Specifications |
|---|---|
| Compatible Machine Model | Komatsu PC300-7 Excavators |
| COGENG Part Number | CG-KOM-PC300-HDMH16 |
| Replaces OEM Part Number | 207-06-71570 |
| Product Name | Heavy-Duty Main Wiring Harness Assembly |
| Application Scope | Complete excavator electrical system integration |
| Wire Specifications | XLPO insulation (-40°C to 150°C), oil/fuel/abrasion/chemical resistant |
| Connector System | IP67 rated sealed connectors, OEM-specification compliant |
| Quality Assurance | 10-stage testing protocol including thermal cycling and vibration testing |
| Warranty Coverage | 4,000-hour heavy-duty warranty |
| NO | Number | Name | Qty |
| 1 | 207-06-71570 | WIRING HARNESS | 1 |
| 2 | 08041-01000 | • FUSE, 10A | 16 |
| 3 | 08041-02000 | • FUSE, 20A | 4 |
| 4 | 04434-53411 | CLIP | 3 |
| 5 | 195-33-11220 | SPACER | 3 |
| 6 | 01010-81040 | BOLT | 3 |
| 7 | 01643-31032 | WASHER | 3 |
| 8 | 04434-51710 | CLIP | 2 |
| 9 | 195-33-11220 | SPACER | 2 |
| 10 | 01010-81040 | BOLT | 2 |
| 11 | 01643-31032 | WASHER | 2 |
| 12 | 01435-01016 | BOLT | 1 |
| 13 | 04434-53411 | CLIP | 1 |
| 14 | 01010-81020 | BOLT | 1 |
| 15 | 01643-31032 | WASHER | 1 |
| 16 | 08034-20519 | BAND | 3 |
| 17 | 04434-52310 | CLIP | 3 |
| 18 | 195-33-11220 | SPACER | 3 |
| 19 | 01010-81040 | BOLT | 3 |
| 20 | 01643-31032 | WASHER | 3 |
| 21 | 08193-30010 | CLIP | 1 |
| 22 | 08028-43030 | CABLE, GROUND | 1 |
| 23 | 01010-81020 | BOLT | 1 |
| 24 | 01643-31032 | WASHER | 1 |
| 25 | 04434-51910 | CLIP | 1 |
| 26 | 01010-81020 | BOLT | 1 |
| 27 | 01643-31032 | WASHER | 1 |
Complete System Power Down: Execute full shutdown procedure including battery disconnection, main power isolation, and verified capacitor discharge waiting period (minimum 15 minutes)
Detailed Pre-Installation Documentation: Create comprehensive photographic records of existing harness routing, connector orientations, and all securing point locations
Proper Connector Handling: Use appropriate tools to release locking mechanisms - always pull on connector housings, never on wires to prevent terminal damage
Systematic Component Inspection: Conduct thorough examination of all sensors, control units, and mating connectors for signs of damage, corrosion, or pin issues
Exact Factory Routing Compliance: Follow precise OEM routing path, ensuring proper placement in all clamps, guides, and protective conduits while maintaining safe clearance from moving components
Comprehensive Connection Verification: Implement step-by-step connection process using provided checklist, verifying all connectors are fully seated with positive locking confirmation
Full System Functional Testing: Perform progressive power-up sequence and complete operational testing of all electrical systems, including diagnostic code verification and operational calibration
