CATBearing & Bushing

8N9018 Bearing — Cat

This is a high-quality intermediate main bearing designed for the CAT 3208 engine, crucial for supporting the crankshaft and maintaining proper oil clearance. Manufactured to meet stringent OEM standards, it offers superior wear resistance and load-bearing capacity compared to a worn component. Symptoms of a failing bearing include a distinct knocking sound from the engine, especially under load, and a potential decrease in oil pressure.

Bearing – Part No 8N9018 – 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
ApplicationCAT 3208 Engine (Intermediate Main)
Service LifeReplace based on engine overhaul schedule
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing 8N9018 bearing will typically produce a deep, rhythmic knocking sound that increases with engine RPM. Continued operation can lead to a noticeable drop in oil pressure and potential damage to the crankshaft. Ignoring these symptoms risks significant internal engine damage.

Installation Tip

Ensure the crankshaft and bearing bores are perfectly clean and free from any abrasive particles before installation. Never use abrasive materials to clean bearing surfaces, as this can damage the overlay.

Service Note

Always measure crankshaft journal diameter and check for taper and out-of-round when replacing main bearings.