CATBearing & Bushing

4W8092 Main Bearing — Cat 613C PR-1000

This is a precision-engineered Main Bearing designed to support the crankshaft within an engine, ensuring smooth rotation and minimizing friction. Manufactured to meet stringent Caterpillar specifications, it provides superior durability and load-carrying capacity compared to a worn or damaged bearing. Operators may detect increased engine noise, a drop in oil pressure, or blue smoke from the exhaust when this bearing begins to fail.

Main Bearing – Part No 4W8092 – 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 TypeMain Bearing
MaterialSteel alloy with bearing material
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial symptoms of failing main bearings can include a knocking sound from the engine, especially under load, and a potential decrease in oil pressure. If left unaddressed, the knocking will become more severe, oil pressure may drop critically low, and excessive wear can lead to crankshaft damage. Continued operation risks severe engine internal damage and potential seizure.

Installation Tip

Ensure the crankshaft journals and bearing bores are perfectly clean and free of any debris before installation. Never reuse old bearing bolts; always use new, properly torqued fasteners.

Service Note

When replacing main bearings, it is essential to inspect the crankshaft for any signs of scoring or wear and to check the condition of the connecting rod bearings.