| Specification Category | Detailed Specification |
|---|---|
| COGENG Part Number | CG-KOM-6754819440 |
| OEM Reference Number | 6754-81-9440 |
| Construction Standard | Komatsu OEM Specifications |
| Wire Insulation Material | Oil-Resistant Cross-Linked Polyethylene (XLPE) |
| Connector Protection Rating | IP66 (Dust Tight & Powerful Water Jet Resistant) |
| Operating Temperature Range | -40°C to 125°C |
| System Voltage Rating | 24V DC System |
| Wire Gauge Compliance | Meets Komatsu Original Specifications |
| Quality Verification | 100% Circuit Continuity & Insulation Tested |
| Warranty Protection | 18-Month Limited Warranty |
| NO | Number | Name | Qty |
| 1 | 6754-81-9450 | WIRE HARNESS | 1 |
| 1 | 6754-81-9210 | WIRE HARNESS | 3 |
| 2 | 6754-81-9220 | CLIP | 3 |
| 3 | 6754-81-9230 | CLIP | 6 |
| 4 | 6754-81-9440 | WIRE HARNESS | 1 |
| 4 | 6754-81-9310 | WIRE HARNESS | 1 |
| 5 | 6732-21-4180 | BOLT | 3 |
| 6 | 6162-23-5770 | SPACER | 1 |
| 7 | 01435-60835 | BOLT | 1 |
| 7 | 6732-61-6140 | BOLT | 1 |
| 7 | 6754-81-9320 | BOLT | 1 |
| 8 | 6754-81-9330 | SPACER | 1 |
| 9 | 6731-61-1370 | BOLT | 1 |
| 10 | 6216-74-6180 | BOLT | 2 |
| 11 | 01584-00605 | NUT | 3 |
| 12 | 6732-71-3210 | NUT | 1 |
| 13 | 6754-71-5330 | CLIP | 1 |
| 14 | 6754-81-9340 | BRACKET | 2 |
| 15 | 6754-81-9230 | CLIP | 2 |
| 16 | 6736-81-5110 | BOLT | 2 |
| 17 | 6754-81-9280 | BRACKET | 1 |
| 18 | 01435-60816 | BOLT | 2 |
| 18 | 6732-21-3120 | BOLT | 2 |
| 19 | 01435-60612 | BOLT | 1 |
| 19 | 6733-71-5680 | BOLT | 1 |
| 20 | 6754-81-9270 | BRACKET | 1 |
| 21 | 6754-81-9390 | BOLT | 1 |
| 22 | 04434-51308 | CLIP | 1 |
| 23 | 6216-74-6180 | BOLT | 1 |
Disconnect battery and main power sources before installation
Follow OEM routing paths and secure with original mounting hardware
Ensure all connectors are fully engaged and locking mechanisms secured
Verify proper clearance from moving parts and hot surfaces
Test all electrical functions and system diagnostics after installation
Q: What Komatsu models use the 6754-81-9440 wiring harness?
A: The COGENG 6754-81-9440 wiring harness is a direct OEM replacement specifically designed for Komatsu PC200-8, PC210-8, and PC220-8 excavator models. Always verify the part number stamped on your original harness tag and consult your machine's parts manual to confirm exact compatibility before ordering, as harness configurations can vary by serial number range and specific machine options.
Q: What are the symptoms of a failing wiring harness on a Komatsu Dash 8 series excavator?
A: Common symptoms include intermittent electrical faults, multiple warning lights illuminated on the monitor panel, unresponsive hydraulic or engine controls, erratic gauge or sensor readings, CAN bus communication errors, specific functions not responding, or unexpected machine shutdowns. Dash 8 series Komatsu excavators feature advanced electronic control systems, making harness integrity critical for proper machine operation and reliable communication between control modules.
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