CATUndercarriage

2Y4206 Pulley — Cat 120B 140B

This is a CAT Pulley, an essential component in various drive systems that redirects force or changes the direction of motion, often found in engine or accessory drives. It is manufactured to meet high-quality standards, ensuring smooth rotation and longevity, unlike worn pulleys that can cause belt slippage and noise. Operators might notice increased belt noise, premature belt wear, or a lack of power to driven accessories when this pulley begins to fail.

Pulley – Part No 2Y4206 – 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
ApplicationDrive System
Service LifeReplace based on wear and bearing condition, typically 2,000-4,000 hrs
Compatibility120B, 140B
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A squealing or chirping noise from the belt area, especially under load, often indicates a worn or misaligned pulley. If left unaddressed, the pulley bearing can seize, causing the belt to break or slip excessively, leading to a loss of function for the driven accessory. This can result in overheating or other system failures if the affected accessory is critical.

Installation Tip

Ensure the pulley shaft is clean and free of rust or debris before mounting the new pulley. Avoid using excessive force when pressing the pulley onto the shaft, as this can damage the bearing.

Service Note

Always inspect the drive belt and tensioner assembly for wear or proper function when replacing a pulley.