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Volvo EC330D EC350D Excavators Engine Wiring HarnessVOE23870650
Designed for Volvo D8K, D8H, and D8F engine systems, this core electronic control cable serves as a vital link for the engine and its sensors. It facilitates the transmission of critical sensing signals and power control commands, ensuring the operational stability of excavators even under demanding industrial working conditions.
Key Electrical Connections
1. Fuel System Control: Connections for the common-rail pressure sensor and electronically controlled fuel injectors.
2. Intake, Exhaust, and Emissions Monitoring: Connections for the turbocharger boost pressure sensor, the EGR (Exhaust Gas Recirculation) valve, and temperature/NOx (nitrogen oxide) sensors within the aftertreatment system.
3. Safety and Status Monitoring: Connections for engine crankshaft/camshaft position sensors (for rotational speed signals), the oil pressure sensor, and the coolant temperature sensor.
Common symptoms of damage to this wiring harness include
1. Frequent ECU communication fault codes (such as SID/PID codes) appearing on the instrument cluster.
2. Irregular drops in engine speed, engine stalling, or intermittent failure to start (often caused by poor contact in the engine speed signal wire).
3. The excavator entering "limp mode" (restricted speed/reduced power).
4. Sensor data drift, leading to excessive emissions or false oil pressure warnings.
Recommended Synchronous Replacement Items (Highly Recommended)
| No. | Description | Volvo Reference P/N | Qty | Reason for Synchronous Replacement |
|---|---|---|---|---|
| 3 | Common Rail Pressure Sensor | 21534005 / 21542854 | 1 pc | Ensures accurate signal for the high-pressure common rail system. Old wiring harnesses often corrode here due to fuel permeation. |
| 4 | Crankshaft Position / Speed Sensor | 21426987 / 21327229 | 1 pc | The critical signal provider that determines whether the engine can start smoothly. |
| 5 | Camshaft Position Sensor | 21426989 / 21327231 | 1 pc | Works in tandem with the crankshaft sensor to synchronize engine timing. |
| 6 | Intake Manifold Pressure & Temperature Sensor | 22422505 / 21534011 | 1 pc | Located near the intake manifold where oil fouling is heavy, making the connector highly prone to aging. |
| 7 | Engine Oil Pressure & Temperature Sensor | 22899626 | 1 pc | Prolonged exposure to engine oil can harden the rubber seal, leading to oil leakage. |
| 8 | Coolant Temperature Sensor | 21164343 / 21548060 | 1 pc | Monitors engine temperature to prevent overheating and cylinder scuffing. |
| 9 | ECU Main Connector Dust Cover | 21303107 (Ref.) | 2 pcs | Plastic protective shields for ECU wiring terminals. The locking clips are easily broken during disassembly. |
DETAILS
| DESCRIPTION | Engine Wiring Harness | PART NUMBER | VOE23870650 |
| WEIGHT | 1.4kg | VOLUME |
45.0 × 35.0 × 12.0 cm |
| TRUCK MOLDE | VOLVO | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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