CATBearing & Bushing

3537428 Main Bearing Kit — Cat 206 212

This is a comprehensive main bearing kit that includes all necessary bearings for supporting the crankshaft in specific Caterpillar engines. Manufactured to exact OEM specifications, these bearings ensure proper crankshaft alignment and lubrication, unlike worn bearings that can cause excessive engine noise and oil pressure loss. Operators might hear distinct knocking sounds from the engine, observe a sudden drop in oil pressure, or notice increased engine vibration when this kit is needed.

Main Bearing Kit – Part No 3537428 – 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 Kit
MaterialSteel alloy with babbit lining
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary indicator of failing main bearings is a deep, rhythmic knocking sound from the engine that often increases with engine speed. This is usually accompanied by a significant drop in oil pressure, and if ignored, can lead to catastrophic engine failure due to crankshaft seizure. The risk is severe internal engine damage, requiring extensive and costly repairs.

Installation Tip

Ensure that all bearing surfaces and the crankshaft journals are meticulously cleaned and lubricated with appropriate assembly lube before installation. Do not mix and match bearings from different kits or manufacturers; use the complete kit as intended.

Service Note

When installing a main bearing kit, always inspect the crankshaft for straightness, wear, and surface finish, and consider replacing the rear main seal.