CATBearing & Bushing

1526791 Main Bearing Set — Cat 216 228

This is a set of main bearings crucial for supporting the crankshaft and maintaining its precise alignment within the engine block, minimizing friction and wear. Manufactured to meet strict OEM quality standards, these bearings offer exceptional durability and performance, unlike worn bearings that allow excessive crankshaft movement and oil pressure loss. Operators may observe a significant decrease in oil pressure, audible knocking sounds from the engine, or a noticeable reduction in engine power when this bearing set begins to fail.

Main Bearing Set – Part No 1526791 – 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 Babbitt
ApplicationEngine Crankshaft
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing main bearing set often presents as a deep, rhythmic knocking sound from the engine that intensifies with RPM, coupled with a significant drop in oil pressure. If operation continues, this can lead to severe crankshaft damage, potential engine block compromise, and ultimately, engine seizure. Ignoring these symptoms poses a high risk of extensive and costly engine repair.

Installation Tip

Ensure all crankshaft journals and bearing mating surfaces are immaculately clean and free from any abrasive particles before installation. Always use new, correctly torqued fasteners for the bearing caps.

Service Note

When replacing main bearings, it is essential to inspect the crankshaft journals for wear, damage, or out-of-roundness, and also check the connecting rod bearings.