CATBearing & Bushing

1450169 Main Bearing — Cat Engine: 3114 3116

This is a main engine bearing designed to support the crankshaft within the engine block, ensuring smooth rotation and proper oil film formation. Manufactured to precise tolerances, it offers superior wear resistance and load-bearing capacity compared to a worn bearing which can lead to increased engine noise and reduced oil pressure. Operators may observe knocking sounds from the engine, a significant drop in oil pressure, or visible blueing on the crankshaft journals when this bearing fails.

Main Bearing – Part No 1450169 – 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 babbit lining
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of main bearing failure is typically a deep knocking or rumbling sound originating from the engine, especially under load. As the condition worsens, oil pressure will drop significantly, and the engine may run rough or lose power. Prolonged operation can lead to severe crankshaft and block damage, necessitating a complete engine rebuild.

Installation Tip

Thoroughly clean the crankshaft journals and the main bearing bores in the engine block to prevent any abrasive material from causing premature wear. Never reuse old bearing caps or bolts; always use new ones to ensure proper clamping force.

Service Note

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