CATUndercarriage

2s6739 Pulley — Cat 140G 627

This is a CAT Pulley, a vital component within the engine's accessory drive system, responsible for redirecting belt motion and driving various components like the alternator or fan. Manufactured to high standards, it ensures smooth operation and longevity, unlike worn pulleys that can cause belt slippage and premature belt failure. Symptoms of a failing pulley include squealing noises from the belt area, excessive belt vibration, or the pulley wobbling on its shaft.

Pulley – Part No 2s6739 – 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 or cast iron
ApplicationEngine accessory drive system
Service LifeInspect regularly, replace if worn or damaged
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The most common initial symptom is a high-pitched squealing noise from the engine bay, especially when the engine is started or under load. If ignored, this can lead to belt slippage, causing undercharging of the battery or overheating if it drives the water pump. Continued operation with a worn pulley risks sudden belt failure, potentially disabling critical engine functions.

Installation Tip

Ensure the pulley is perfectly aligned with the other pulleys in the belt system before tightening the mounting bolt to prevent belt misalignment and premature wear. Do not use excessive force when installing, as this can damage the pulley or the shaft it mounts on.

Service Note

Always inspect the drive belt for wear, cracks, or glazing and replace it if necessary when changing the pulley.