| Specification Category | Details |
|---|---|
| Compatible Machine Model | Komatsu PC288USLC-3E0 Excavator |
| COGENG Part Number | 22U-06-27430 / 22U-06-27431 |
| OEM Part Number | Replaces Komatsu 22U-06-27430, 22U-06-27431 |
| Product Name | Main Engine Wiring Harness Assembly |
| Application | Connects Engine ECU, Sensors, Solenoids, and Critical Control Units |
| Wire Specifications | High-temperature, cross-linked polyethylene insulation; Oil & Abrasion Resistant |
| Connector Type | OEM-Grade, Weatherproof (IP67 rated equivalents) |
| Quality Assurance | 100% Electrical Continuity and Resistance Tested |
| Warranty | COGENG Standard 12-Month Limited Warranty |
| NO | Number | Name | Qty |
| 1 | 22U-06-27430 | WIRING HARNESS | 1 |
| 22U-06-27431 | WIRING HARNESS | 1 | |
| 2 | 19M-06-31720 | • RESISTOR | 1 |
| 3 | 20Y-06-31660 | • FUSIBLE LINK, 30A | 1 |
| 4 | 22U-06-11270 | • FUSIBLE LINK, 65A | 1 |
| 5 | 08057-14012 | CLIP | 2 |
| 6 | 08057-22012 | CLIP | 1 |
| 7 | 01010-81225 | BOLT | 3 |
| 8 | 01643-31232 | WASHER | 3 |
| 9 | 08057-12012 | CLIP | 1 |
| 10 | 195-33-11220 | SPACER | 1 |
| 11 | 01010-81250 | BOLT | 1 |
| 12 | 01643-31232 | WASHER | 1 |
| 13 | 08057-12012 | CLIP | 1 |
| 14 | 08057-22012 | CLIP | 2 |
| 15 | 01010-81225 | BOLT | 3 |
| 16 | 01643-31232 | WASHER | 3 |
| 17 | 08057-12012 | CLIP | 1 |
| 18 | 01010-81225 | BOLT | 1 |
| 19 | 01643-31232 | WASHER | 1 |
| 20 | 421-971-2960 | BRACKET | 1 |
| 21 | 01010-81225 | BOLT | 1 |
| 22 | 01643-31232 | WASHER | 1 |
| 23 | 08057-12012 | CLIP | 1 |
| 24 | 01010-81225 | BOLT | 1 |
| 25 | 01643-31232 | WASHER | 1 |
| 26 | 08057-12012 | CLIP | 2 |
| 27 | 01010-81225 | BOLT | 2 |
| 28 | 01643-31232 | WASHER | 2 |
| 29 | 08057-12010 | CLIP | 1 |
| 30 | 08057-12012 | CLIP | 1 |
| 31 | 01010-81225 | BOLT | 1 |
| 32 | 01643-31232 | WASHER | 1 |
| 33 | 08057-12012 | CLIP | 5 |
| 34 | 01010-81225 | BOLT | 5 |
| 35 | 01643-31232 | WASHER | 5 |
| 36 | 08057-12012 | CLIP | 1 |
| 37 | 08057-12012 | CLIP | 1 |
| 38 | 01010-81295 | BOLT | 1 |
| 39 | 01643-31232 | WASHER | 1 |
| 40 | 195-979-3570 | COLLAR | 1 |
| 41 | 08034-20536 | BAND | 4 |
| 42 | 08057-00812 | PLATE | 2 |
| 43 | 01010-81225 | BOLT | 2 |
| 44 | 01643-31232 | WASHER | 2 |
| 45 | 08057-00812 | PLATE | 1 |
| 45 | 08057-12012 | CLIP | 1 |
| 46 | 08057-12012 | CLIP | 1 |
| 47 | 208-01-11270 | WASHER | 1 |
| 48 | 08057-12012 | CLIP | 2 |
| 49 | 01010-81225 | BOLT | 2 |
| 50 | 01643-31232 | WASHER | 2 |
Disconnect Power: Before starting, ALWAYS disconnect the negative terminal of the battery and isolate it to prevent accidental short circuits.
Document the Process: Before disconnecting the old harness, take photos or label connectors and routing paths with tape. This will serve as a valuable reference during installation.
Gentle Handling: Do not force connectors apart. Release locking tabs carefully. Avoid pulling on the wires themselves; always pull by the connector body.
Inspect Components: Before installing the new COGENG harness, inspect all mating connectors on the engine and sensors for corrosion, bent pins, or damage. Clean or repair as necessary.
Correct Routing: Follow the exact original routing path. Secure the harness firmly in all designated clips and clamps. Avoid contact with sharp edges, hot surfaces (e.g., exhaust manifold), and moving parts.
Secure Connections: Ensure every connector is fully seated and its locking mechanism audibly "clicks" into place.
Post-Installation Check: After installation, double-check all connections. Reconnect the battery and perform a system check for error codes before starting the engine.
