CATBearing & Bushing

6Y3908 Bearing — Cat D6M D5H

This is a precision-engineered bearing designed to facilitate smooth rotation and support loads in critical powertrain and implement systems. Manufactured to meet Caterpillar's high standards, it provides superior durability and performance compared to a worn bearing that would exhibit increased friction and noise. Operators may notice increased resistance to movement, audible grinding, or excessive heat from the affected component when this bearing fails.

Bearing – Part No 6Y3908 – 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 TypeBall Bearing
MaterialChrome Steel
ApplicationPowertrain and Implement Systems
Service LifeReplace based on inspection or 2,000-4,000 hrs
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of failure may include increased operating noise or a slight increase in the temperature of the component. If left unaddressed, the bearing can seize, leading to shaft damage and potential loss of power or implement function. Continued operation risks significant mechanical damage and costly repairs.

Installation Tip

Thoroughly clean the bearing housing and ensure the shaft is free of any burrs or debris before attempting installation. Never use a hammer or excessive force to seat the bearing, as this can cause internal damage.

Service Note

Inspect the shaft for wear and ensure the bearing bore is clean and free of contaminants before installing the new bearing.