CATEngine Parts

2295154 Main Bearing (Thrust) — Cat 120H 120H ES

This is a Main Bearing (Thrust) designed to control the axial movement of the crankshaft within the engine block, ensuring proper alignment and reducing friction. Manufactured to meet high-durability standards, it provides a smooth, low-friction surface essential for crankshaft longevity. Operators may notice increased engine noise, particularly a knocking sound, or a loss of oil pressure if this bearing fails.

Main Bearing (Thrust) – Part No 2295154 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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 (Thrust)
MaterialSteel-backed babbitt or aluminum alloy
ApplicationEngine crankshaft main journal
Service LifeReplace during engine overhaul or when diagnosed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing thrust bearing is often an audible knocking or rattling sound from the engine, especially under load. If ignored, this can progress to significant crankshaft end-play, leading to oil pressure loss and potential damage to other internal components. Continued operation risks severe damage to the crankshaft and engine block.

Installation Tip

Thoroughly clean the crankshaft journals and bearing saddles before installing new bearings to prevent premature wear. Ensure the oil holes in the bearings are aligned with the corresponding oil passages in the block and crankshaft.

Service Note

When replacing main bearings, always inspect the crankshaft journals for scoring or out-of-roundness and check the oil pump for adequate pressure.