CATBearing & Bushing

1617163 Main Bearing Set — Cat 216 216B

This is a main bearing set, essential for supporting the rotating crankshaft within the engine and maintaining proper oil clearance. Manufactured to precise tolerances, these bearings ensure smooth crankshaft rotation and prevent metal-to-metal contact, unlike worn bearings which allow excessive crankshaft movement and noise. Operators may hear a distinct knocking sound from the engine or observe a significant drop in oil pressure.

Main Bearing Set – Part No 1617163 – 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 Set
MaterialSteel-backed aluminum alloy
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first symptom of failing main bearings is often a deep knocking sound from the engine, especially under load. As wear progresses, this noise intensifies, and oil pressure may drop noticeably. Continued operation risks severe crankshaft and block damage due to excessive movement and lubrication failure.

Installation Tip

Thoroughly clean the crankshaft journals and bearing bores to remove all debris and old lubricant before installing new bearings. Never reuse old bearing bolts; always use new ones torqued to specification.

Service Note

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