| Specification Category | Technical Specifications |
|---|---|
| Compatible Machine Models | Caterpillar 324D, 325D, 329D Excavators |
| COGENG Part Number | CG-CAT-300D-UMH27 |
| Replaces OEM Part Number | 222-5917 |
| Product Name | Universal 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, Caterpillar-specification compliant |
| Quality Assurance | 11-stage testing protocol including thermal cycling and vibration testing |
| Warranty Coverage | 4,000-hour universal warranty |
| NO | Number | Name | Qty |
| Grp | 330-6022 | WIRING GP-ENGINE | 1 |
| 1 | 3S-2093 | STRAP-CABLE | 14 |
| 2 | 4P-5918 | CLIP | 1 |
| 3 | 206-1345 | STRAP-CABLE | 7 |
| 4 | 222-5917 | HARNESS | 1 |
| 381-2499 | HARNESS | 1 | |
| 6 | 352-3966 | CLIP | 1 |
| 7 | 4P-8134 | CLIP | 1 |
| 8 | 5P-7970 | NUT | 1 |
| 9 | 6K-0806 | STRAP-CABLE | 2 |
| 10 | 6V-2317 | BOLT | 1 |
| 11 | 9M-1974 | WASHER-HARD | 1 |
| 12 | 5P-4116 | WASHER-HARD | 1 |
| 13 | 6V-5217 | BOLT | 1 |
| 14 | 7X-7729 | WASHER | 1 |
| 15 | 8T-4191 | BOLT | 1 |
| 16 | 113-8690 | WASHER | 1 |
| 17 | 156-9890 | 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)
Model-Specific Documentation: Create comprehensive photographic records of existing harness routing, noting specific variations between 324D, 325D, and 329D configurations
Connector Identification: Use provided connector chart to identify model-specific connections and ensure proper harness configuration for your excavator
Systematic Component Inspection: Conduct thorough examination of all sensors, control units, and mating connectors for signs of damage, corrosion, or pin issues
Precise Routing Implementation: Follow exact factory routing path for your specific 300D series model, ensuring proper placement in all clamps, guides, and protective conduits
Comprehensive Connection Verification: Implement step-by-step connection process using provided model-specific 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
