CATUndercarriage

2s8961 Pulley — Cat D9G D9H

This pulley is a critical component within the engine's accessory drive system, responsible for transmitting rotational force to other components like the alternator or fan. Manufactured to precise tolerances, it ensures smooth operation and longevity, unlike worn pulleys that can develop cracks or wobble. Operators may observe a squealing noise from the engine bay, premature belt wear, or a loss of accessory function when this pulley begins to fail.

Pulley – Part No 2s8961 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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 TypePulley
MaterialSteel
ApplicationAccessory Drive System
Service LifeReplace as needed based on wear inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing pulley often begins with an audible squeal or whine from the engine compartment, especially under load. If left unaddressed, the pulley may develop excessive wobble, causing rapid belt wear or slippage. Continued operation risks accessory failure and potential belt breakage, leading to overheating or loss of power.

Installation Tip

Ensure the new pulley's bore is clean and free of any debris before mounting it onto the shaft. Do not use excessive force or impact tools when installing the pulley, as this can damage the bearing or shaft.

Service Note

Inspect the condition of the drive belt and tensioner when replacing the pulley.