CATBearing & Bushing

1496033 Main Bearing — Cat 5130 5130B

This main bearing is a critical component for supporting the crankshaft within the engine block, ensuring smooth rotation and proper alignment. Manufactured to meet stringent Caterpillar standards, it offers superior load-bearing capacity and wear resistance compared to a worn bearing that may show signs of scoring or excessive clearance. Operators might notice increased engine noise, low oil pressure, or a rough-running engine if this bearing fails.

Main Bearing – Part No 1496033 – 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
MaterialTri-metal alloy on steel backing
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul or based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The initial symptom of main bearing failure is often a deep knocking or rumbling sound from the engine, particularly under load. This can be accompanied by a drop in oil pressure and increased engine vibration. If left unaddressed, it can lead to severe crankshaft and engine block damage, necessitating a complete engine rebuild.

Installation Tip

Ensure the crankshaft journals and bearing saddles are perfectly clean and free of any debris or scoring before installation. Use the correct assembly lube on the bearing surfaces.

Service Note

Inspect the crankshaft for any signs of wear, scoring, or out-of-roundness, and check connecting rod bearings for wear.