CATBearing & Bushing

1721965 Sprocket — Cat 303

This is a CAT Sprocket designed to engage with a track chain to propel the machine. Manufactured to precise specifications, it ensures optimal tooth engagement and wear resistance, unlike a worn sprocket with damaged teeth that can cause premature track wear and misalignment. Operators may notice increased noise, vibration, or a 'skipping' sensation from the track system when this sprocket is failing.

Sprocket – Part No 1721965 – 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 Track Drive
Service LifeReplace based on wear pattern inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early signs of a worn sprocket include excessive track noise, uneven track tension, or visible wear on the sprocket teeth. If ignored, worn teeth can damage the track chain, leading to derailment or premature wear of other undercarriage components. Continued operation risks significant undercarriage damage and costly repairs.

Installation Tip

Ensure the mounting surface on the final drive hub is clean and free of rust or debris before attaching the sprocket. Do not overtighten the mounting bolts, as this can warp the sprocket or damage the threads.

Service Note

Inspect the track chain for wear, check the final drive seals, and examine the idler and roller bearings for damage.