CATBearing & Bushing

2645371 Sprocket — Cat 303

This sprocket is a toothed wheel designed to engage with a chain or track, transmitting rotational force and enabling movement in construction equipment. Manufactured to meet rigorous OEM quality standards, it offers superior durability and wear resistance over a worn sprocket that may show rounded teeth or excessive play. Operators may observe track slippage, unusual noises, or reduced traction when this sprocket begins to fail.

Sprocket – Part No 2645371 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
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

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

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

Part TypeDrive Sprocket
MaterialHardened Steel
ApplicationUndercarriage drive system
Service LifeReplace as needed based on wear inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indications of a worn sprocket include a noticeable increase in track noise or a tendency for the track to 'climb' off the sprocket. If ignored, the sprocket teeth will continue to wear, leading to poor track tension and potential derailment. Failure to replace a worn sprocket can result in accelerated wear on the track chain and other undercarriage components.

Installation Tip

Ensure the drive shaft and mounting surfaces are clean and free of debris before installing the new sprocket. Do not overtighten the mounting bolts, as this can damage the threads or the sprocket itself.

Service Note

Inspect the drive chains, idlers, and track rollers for wear and damage when replacing the drive sprocket.