VolvoTransmission Parts

14780712 — Shaft Coupling 14780712 14733243 14780711 For Volvo Excavator Ec480E Ec500E Ec750D

This shaft coupling connects the drive shaft to the transmission or differential, transmitting rotational power while accommodating minor misalignments. It is engineered with robust materials to withstand torque and vibration, unlike a worn coupling with cracked rubber or loose bolts. Operators may notice a clunking noise during acceleration or deceleration, excessive vibration through the drivetrain, or a loss of power transfer as signs of a failing shaft coupling.

Shaft Coupling 14780712 14733243 14780711 For Volvo Excavator Ec480E Ec500E Ec750D – Part No 14780712 – Volvo Spare Part
Part Specifications
BrandVolvo
CategorySpare Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeShaft Coupling
MaterialRubber, Steel
ApplicationDrivetrain Power Transmission
Service LifeReplace as needed based on condition
CompatibilityVolvo 14780712, 14733243, 14780711
ConditionNew — OEM specification aftermarket

Failure Symptoms

A worn shaft coupling often manifests as a distinct clunking or knocking sound when engaging or disengaging power, such as during acceleration or gear changes. Excessive vibration felt through the operator's cab or floorboards is another common symptom. If the coupling fails completely, it can lead to a sudden loss of power to the drive axle, immobilizing the equipment.

Installation Tip

Ensure the mating surfaces of the shafts are clean and free of rust or debris before installing the new coupling to achieve a secure fit. Do not reuse old fasteners; always use new bolts and nuts with appropriate thread-locking compound.

Service Note

When replacing the shaft coupling, inspect the universal joints and driveshaft bearings for signs of wear, and check the alignment of the connected components.