| Attribute | Specification |
|---|---|
| COGENG Part Number | CG-VWH-14512406 |
| Replaces OEM Number | VOE14512406 (14512406) |
| Product Name | VOLVO Main Wiring Harness Assembly |
| Application | Volvo Large Excavator Models: EC290B, EC290BLC, EC290BLR, EC290BFX, EC290BNLC. Confirm your machine's serial number for a guaranteed fit. |
| Harness Type | Main Engine/Chassis Harness |
| Connector Type | OEM-Specification Heavy-Duty Sealed Connectors |
| Wire Insulation | High-Temperature, Oil-Resistant XLPE (Up to 150°C) |
| Color Coding | OEM-Standard Wire Colors and Tracers |
| Quality Standard | ISO 9001, Compliant with Volvo OEM Specifications |
| Warranty | COGENG Limited 18-Month Warranty |
| NO | Number | Name | Qty |
| 1 | VOE14529064 | Grommet | 2 |
| 2 | VOE14529099 | Bracket | 3 |
| 3 | VOE14529100 | Bracket | 3 |
| 4 | VOE14500291 | Clip | 6 |
| VOE14500291 | Clip | 7 | |
| 5 | VOE14500292 | Clip | 16 |
| 6 | VOE14500293 | Clip | 4 |
| 7 | VOE14500294 | Clip | 1 |
| 8 | VOE14500295 | Clip | 2 |
| VOE14500297 | Clip | 1 | |
| 9 | VOE14500297 | Clip | 4 |
| 10 | VOE14500298 | Clip | 6 |
| 11 | VOE14515523 | Clip | 1 |
| 12 | VOE14501544 | Wire harness | 1 |
| VOE14518708 | Wire harness | 1 | |
| VOE14520393 | Wire harness | 1 | |
| VOE14523872 | Wire harness | 1 | |
| VOE14528504 | Wire harness | 1 | |
| VOE14530076 | Wire harness | 1 | |
| VOE14533139 | Wire harness | 1 | |
| VOE14538563 | Wire harness | 1 | |
| VOE14593563 | Cable harness | 1 | |
| VOE14569830 | Cable harness | 1 | |
| 13 | SA1122-00940 | •Fuse holder | 3 |
| 14 | SA9879-10400 | •Fuse | 2 |
| 15 | SA9879-10800 | •Fuse | 1 |
| 16 | SA9879-11000 | •Fuse | 1 |
| SA9879-11400 | •Fuse | 1 | |
| 17 | VOE14529132 | •Diode | 6 |
| 18 | SA9879-10800 | •Fuse | 1 |
| 19 | VOE14529132 | •Diode | 1 |
| 20 | VOE14511073 | Bracket | 2 |
| 21 | VOE14511453 | Grommet | 1 |
| 22 | VOE14512406 | Wire harness | 1 |
| 23 | VOE14529345 | Clip | 10 |
| 24 | VOE14529396 | Grommet | 1 |
| 25 | VOE14881250 | Clip | 3 |
| 26 | VOE946441 | Flange screw | 4 |
| 27 | VOE946471 | Flange screw | 48 |
| VOE946471 | Flange screw | 49 | |
| VOE946471 | Flange screw | 50 | |
| 28 | SA9751-13606 | Grommet | 1 |
| 29 | SA9751-15016 | Grommet | 2 |
| 30 | SA9751-16427 | Grommet | 1 |
| 31 | VOE14509621 | Grommet | 1 |
| 32 | VOE940148 | Hexagon screw | 3 |
| 33 | VOE946471 | Flange screw | 2 |
| VOE946441 | Flange screw | 2 | |
| 34 | VOE14500292 | Clip | 1 |
| VOE14510011 | Clip | 1 | |
| 35 | VOE14500298 | Clip | 2 |
| VOE14515523 | Clip | 2 | |
| 36 | VOE14510011 | Clip | 1 |
| 37 | VOE14505501 | Bracket | 1 |
| 38 | VOE946441 | Flange screw | 1 |
| 39 | VOE14510011 | Clip | 6 |
| VOE14510011 | Clip | 7 | |
| 40 | VOE14510985 | Grommet | 1 |
| 41 | VOE14522575 | Clip | 1 |
Q: What Volvo models use the VOE14512406 main wiring harness?
A: The COGENG VOE14512406 (also referenced as 14512406) main wiring harness is a direct OEM replacement specifically designed for Volvo EC290B series excavator models, including EC290B, EC290BLC, EC290BLR, EC290BFX, and EC290BNLC. Always verify the part number stamped on your original harness tag and consult your machine's parts manual to confirm exact compatibility before ordering.
Q: What are the symptoms of a failing main wiring harness on a Volvo EC290B series excavator?
A: Common symptoms include intermittent electrical faults, multiple warning lights illuminated on the display, unresponsive hydraulic or engine controls, erratic gauge or sensor readings, CAN bus communication errors, specific functions not responding, or unexpected machine shutdowns. As the central electrical backbone of the excavator, main harness degradation from heat, vibration, and moisture ingress can cause widespread and difficult-to-trace electrical problems.
Q: What does the "main" wiring harness cover?
A: The main wiring harness is the central electrical backbone of the excavator, connecting the operator cab controls, monitor display, engine ECU, hydraulic control solenoids, sensors, and various sub-harnesses throughout the machine. It serves as the primary communication pathway for all machine electrical functions via CAN bus networks and is essential for reliable excavator operation.
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