CATBearing & Bushing

8N7924 Main Bearing — Cat D7E D8K-H

This is a main bearing designed to support the crankshaft within the engine, crucial for maintaining proper engine timing and power delivery. Manufactured to meet high-durability standards, it offers superior wear resistance compared to a failed bearing, which would show signs of scoring and material transfer. Operators might experience a noticeable drop in engine power, increased oil consumption, or knocking sounds from the engine when this main bearing is compromised.

Main Bearing – Part No 8N7924 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

PM IST.', };

Related CAT Parts

From the same category — may also be needed

6P7625
Bearing
2s0669
Bearing Needle
3K5595
Bearing-Outer
4F1999
1B3909
9J1676
Bearing
7P3454
Bearing

Browse all CAT Bearing Bushing →

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
MaterialSteel alloy with overlay
ApplicationEngine crankshaft support
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early failure may present as a subtle increase in engine noise or a slight decrease in oil pressure. If ignored, the bearing can break apart, leading to crankshaft damage and potential engine seizure. Continued operation risks severe internal engine damage and extended downtime.

Installation Tip

Thoroughly clean the crankshaft journals and bearing bores, ensuring no grit or debris remains. Never reuse old bearing bolts; always use new ones torqued to specification.

Service Note

Inspect the crankshaft journals for scoring or wear, and check the oil pump and oil filter for any signs of debris.