CATBearing & Bushing

4W5698 Main Bearing — Cat 16G 16H NA

This main bearing is a crucial engine component that supports the crankshaft, allowing it to rotate smoothly within the engine block. Manufactured to meet rigorous OEM standards, it provides a low-friction surface essential for engine longevity, unlike a worn bearing which exhibits scoring and increased clearance. Operators may observe a drop in oil pressure, increased engine noise (knocking), or a general loss of engine power when this bearing fails.

Main Bearing – Part No 4W5698 – 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 TypeEngine Main Bearing
MaterialBabbitt-lined Steel
ApplicationEngine Crankshaft Support
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing main bearing is often a persistent knocking sound from the engine, especially under load. Continued operation will lead to a significant drop in oil pressure and potentially increased engine vibration. Ignoring these symptoms can result in severe crankshaft and engine block damage.

Installation Tip

Ensure all oil passages are clean and free of debris before installing the new bearings. Do not mix up the upper and lower bearing shells, as they are often specific to their position.

Service Note

Inspect crankshaft journals for scoring or out-of-roundness and check the oil pump for proper function.