VolvoEngine Parts

21670498 Coupling — Volvo FH12 FH16

This coupling is designed to connect rotating shafts, typically between the engine and a driven component like a transmission or hydraulic pump, to transmit torque smoothly. It is engineered with specific flexibility and damping characteristics to absorb vibrations and misalignment, unlike a worn or broken coupling that can cause shuddering or noise. Operators might notice vibrations transmitted through the chassis, abnormal noises from the drivetrain, or a loss of power transfer.

Coupling – Part No 21670498 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine 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 TypeDrive Coupling
MaterialRubber, steel
ApplicationDrivetrain, engine to transmission
Service LifeReplace every 5,000-10,000 hours or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing coupling is often increased vibration felt through the vehicle, especially during acceleration. If left unaddressed, these vibrations can worsen, leading to audible clunking noises and potential damage to adjacent drivetrain components. Continued operation with a severely worn coupling risks a sudden loss of drive power.

Installation Tip

Ensure the mating surfaces of the shafts are clean and free of rust or debris before installing the new coupling. Do not overtighten the mounting bolts, as this can distort the coupling.

Service Note

Inspect the driveshaft U-joints and transmission mounts for wear when replacing the drive coupling.