CATUndercarriage

4484218 Kit-Bearing Main — Cat DE150GC DE200E0

This is a main bearing kit designed to support the rotating crankshaft within the engine, reducing friction and wear. Manufactured to meet stringent OEM quality standards, these bearings provide optimal load-bearing capacity and durability compared to worn or damaged bearings. Operators may notice increased engine noise, low oil pressure, or a loss of engine power if these bearings fail.

Kit-Bearing Main – Part No 4484218 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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 Kit
MaterialTri-metal Alloy (Steel-backed aluminum-tin)
ApplicationEngine - Crankshaft Support
Service LifeReplace during engine overhaul or if wear is detected
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indicators of main bearing failure include a knocking or rumbling sound from the engine, especially under load, and a potential drop in oil pressure. If ignored, the bearings can wear to the point of crankshaft damage, leading to severe engine noise and a significant loss of power. Continued operation risks catastrophic engine damage.

Installation Tip

Ensure the crankshaft journals and bearing surfaces are meticulously cleaned and free of any debris before installing the new bearings. Always use the correct assembly lubricant on the bearing surfaces and crankshaft fillets.

Service Note

Inspect the crankshaft journals for wear or damage, and check connecting rod bearings when replacing main bearings.