| Category | Specification |
|---|---|
| COGENG Part Number | CG-CAT-2594877 |
| OEM Reference | 259-4877 |
| Compatible Models | Caterpillar 330D, 330DL, 330DLN Excavators |
| Construction Standard | Caterpillar OEM Specification |
| Wire Type | Oil-Resistant Cross-Linked Polyethylene |
| Connector Rating | IP66 (Dust Tight & Water Resistant) |
| Temperature Range | -40°C to 125°C |
| Voltage Rating | 24V DC System |
| NO | Number | Name | Qty |
| Grp | 251-0435 | WIRING GP-CONSOLE -RH | |
| 1 | 3S-2093 | STRAP-CABLE | 5 |
| 2 | 7K-1181 | STRAP-CABLE | 2 |
| 3 | 283-3074 | SWITCH AS-TOGGLE | 1 |
| 4 | 163-6711 | SWITCH AS-TOGGLE | 1 |
| 5 | 163-6795 | STRAP-CABLE | 2 |
| 6 | 251-0602 | BRACKET | 1 |
| 7 | 259-4877 | HARNESS AS-CONSOLE | 1 |
| 102-8806 | KIT-RECEPTACLE | 1 | |
| 247-2693 | RECEPTACLE AS-CONNECTOR | 1 | |
| 243-4510 | RECEPTACLE AS-CONNECTOR | 1 | |
| 264-7032 | SEAL-CONNECTOR | 1 | |
| 264-7031 | SEAL-CONNECTOR | 1 | |
| 8 | 9X-2042 | SCREW-TRUSS HEAD | 1 |
| 9 | 8C-5063 | CONDUIT-FLEXIBLE | 1 |
| Connector Type | Specification |
|---|---|
| Main ECU Connectors | 16-pin Sealed Deutsch DT Series |
| Sensor Connectors | 4-pin Micro-Quad Sealed |
| Power Connectors | 10mm Gold-Plated Brass Terminals |
| Grounding Points | 6x M10 Stud Connections |
| Parameter | Specification |
|---|---|
| System Voltage | 24V DC (Heavy-Duty) |
| Max Current Capacity | 40A (Main Power Circuits) |
| Wire Gauge Range | 8AWG - 20AWG |
| Insulation Resistance | ≥1000MΩ @ 1000V DC |
| Dielectric Strength | 3000V AC/60s No Breakdown |
Disconnect battery power before installation
Verify harness routing matches OEM path and secure with original clips
Ensure all connectors are fully engaged and locked
Test all electrical functions before returning to service
Recommended inspection of connected components during replacement
Each COGENG 259-4877 wiring harness undergoes rigorous quality validation:
Circuit continuity verification
Insulation resistance testing
Connector engagement validation
Mechanical stress testing
Environmental compatibility check
This comprehensive testing ensures reliable performance and long-term durability in accordance with Caterpillar's stringent quality standards for excavator applications.
