CATBearing & Bushing

8n5301 Bearing — Cat 3508 3512

This is a critical engine bearing that supports rotating components within the crankshaft assembly, ensuring smooth operation and preventing excessive friction. It is manufactured to meet stringent OEM material and dimensional standards, offering superior wear resistance compared to a worn or damaged bearing. Operators may notice a knocking or rattling sound from the engine, accompanied by a significant drop in oil pressure if this bearing fails.

Bearing – Part No 8n5301 – 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 TypeEngine Bearing
MaterialSteel alloy with babbitt lining
ApplicationEngine crankshaft main or connecting rod
Service LifeReplace based on engine overhaul schedule or inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing bearing include a distinct knocking or tapping sound from the engine, especially under load. If ignored, the noise will intensify, and oil pressure will begin to drop, indicating increased clearance. Continued operation risks severe crankshaft and engine block damage.

Installation Tip

Ensure the crankshaft journals are meticulously cleaned and free of any debris before installation. Avoid overtightening the bearing caps, as this can distort the bearing and lead to premature failure.

Service Note

Inspect crankshaft journals for wear or damage and replace connecting rod bolts if they are single-use.