CATBearing & Bushing

1496031 Main Bearing — Cat 5130 5130B

This is a CAT Main Bearing, a critical component designed to support the crankshaft and minimize friction within the engine. Manufactured to meet stringent OEM quality standards, it ensures precise alignment and durability, outperforming worn or damaged bearings. Operators may notice abnormal engine noises, reduced oil pressure, or performance issues when this main bearing begins to fail.

Main Bearing – Part No 1496031 – 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 overlay
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early signs of main bearing failure can include a deep knocking sound from the engine, especially under load, and a potential drop in oil pressure. If ignored, the knocking will become more severe, and the engine may run rough or overheat. Continued operation risks severe engine damage, including crankshaft and block failure.

Installation Tip

Ensure the crankshaft journals and bearing bores are immaculately clean and free of any debris or scoring before installation. Carefully place the bearings into their respective housings without applying force to avoid damaging the bearing surfaces.

Service Note

When replacing main bearings, it is essential to inspect connecting rod bearings, crankshaft journals for wear, and to perform an oil change with a new filter.