| Attribute | Specification |
|---|---|
| COGENG Part Number | CG-VWH-21814766 |
| Replaces OEM Number | VOE21814766, 21814766 |
| Product Name | Volvo Premium Main Wiring Harness Assembly |
| Application | Volvo Excavator Models: EC240B, EC290B Series |
| Harness Type | Main Engine/Chassis Harness |
| Connector Type | OEM-Specification IP67 Sealed Connectors |
| Wire Insulation | High-Temperature XLPE (150°C Continuous Rating) |
| Wire Gauge Range | 0.5mm² to 10mm² (20-8 AWG) |
| Protection System | Double-Wall Convoluted Tubing + Abrasion-Resistant Sleeving |
| Environmental Rating | IP67 Protected Connectors, Oil-Resistant Construction |
| Quality Standard | ISO 9001:2015, Exceeds Volvo OEM Specifications |
| Warranty | COGENG Limited 24-Month Warranty |
| NO | Number | Name | Qty |
| 1 | VOE21814766 | Cable harness | 1 |
| VOE22067983 | Cable harness | 1 | |
| •CONNECTED TO: | |||
| ••Connector | |||
| ••Engine speed,camshaft | |||
| ••Solenoid valve | |||
| ••Coolant temperature | |||
| ••Charge-air temperature | |||
| ••Fuel Regulator | |||
| ••Fuel Nozzle | |||
| ••Fuel filter | |||
| ••Oil pressure sensor | |||
| ••Engine speed | |||
| ••Pressure Sensor | |||
| ••Level Sensor | |||
| ••Starter Motor | |||
| 2 | VOE20799892 | Bracket | 1 |
| 3 | VOE20460347 | Clamping band | 7 |
| 4 | Cable Clamp | 1 | |
| 5 | VOE20460055 | Screw | 3 |
| 6 | VOE20799942 | Bracket | 1 |
| 7 | VOE21377079 | Bracket | 1 |
| 8 | VOE20450802 | Flange screw | 2 |
| 9 | VOE21377118 | Retaining plate | 1 |
| 10 | VOE20405672 | Screw | 4 |
| 11 | Bracket | 1 | |
| 12 | VOE4881440 | Cable tie | REQ |
| 13 | VOE20450683 | Adapter | 1 |
| 14 | VOE13947628 | Plane gasket | 1 |
| 15 | VOE20513340 | Sensor | 1 |
| 16 | Seal | 1 | |
| 17 | VOE20524936 | Pressure sensor | 1 |
| 18 | VOE20460055 | Screw | 1 |
| 19 | VOE20820494 | Sensor | 1 |
| 20 | VOE20450694 | Screw | 2 |
| 21 | VOE21291011 | Pressure sensor | 1 |
| VOE20585158 | Pressure sensor | 1 | |
| 22 | VOE20450707 | Tachometer | 1 |
| 23 | VOE20700252 | Bracket | 1 |
| 24 | VOE20799862 | Bolt | 2 |
| 25 | VOE20450997 | Bracket | 2 |
| 26 | VOE4881440 | Cable tie | 4 |
| 27 | VOE21634021 | Pressure sensor | 1 |
| 28 | VOE21391695 | Level sensor | 1 |
| 29 | VOE20515173 | Gasket | 1 |
| 30 | Pressure Sensor | 1 | |
| 31 | 20795296? | Solenoid valve | 1 |
| 32 | VOE21598195 | Guard plate | 1 |
Q: What are symptoms of a failing main wiring harness on a Volvo EC240B?
A: Common signs on B-Series Volvo excavators include intermittent CAN bus communication errors, multiple warning lights illuminating on the display, specific hydraulic functions not responding, erratic gauge readings, or the machine failing to start. The heat and vibration in the engine bay and main frame accelerate harness insulation degradation over time.
Q: Does the VOE21814766 harness fit both EC240B and EC290B?
A: Yes, the VOE21814766 main wiring harness is a direct fit for both Volvo EC240B and EC290B excavators. It is a common main chassis harness shared across these B-Series platforms. Verify the part number on your original harness tag to confirm exact fitment.
Q: Why replace the entire main harness instead of repairing damaged sections?
A: On B-Series machines, the wiring insulation becomes brittle and connector seals degrade throughout the entire harness due to age, heat, and exposure. Patching one damaged section often leads to another failure soon after, causing repeated downtime. A complete COGENG harness restores the entire electrical system to OEM specification for long-term reliability.
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