VolvoEngine Parts

4955856 — +0.25Mm Main Bearing &Amp; Thrust Set 4955856 For Cummins Engine B3.9 B4.5 B5.9 Isb Qsb4.5 Qsb5.9 Volvo Excavator Ec140

This +0.25mm Main Bearing & Thrust Set provides critical support and alignment for the engine's crankshaft, ensuring smooth rotation and proper load distribution. Manufactured to precise tolerances, these bearings offer superior wear resistance and reduced friction compared to worn bearings that can lead to crankshaft damage. Operators may experience increased engine noise, particularly knocking sounds from the bottom end, or a noticeable drop in oil pressure when these bearings begin to fail.

+0.25Mm Main Bearing &Amp; Thrust Set 4955856 For Cummins Engine B3.9 B4.5 B5.9 Isb Qsb4.5 Qsb5.9 Volvo Excavator Ec140 – Part No 4955856 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine Parts
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

Related Volvo Parts

From the same category — may also be needed

11382300
Controller Ecu 11382300 For Volvo Engine D3.4Dcae3 Excavator Ecr88
3802125
Turbo K26 Turbocharger 3583006 3802125 For Volvo Penta Ship With Kad43
VOE14509313
For Volvo Excavator Ec360B Ec330B Engine D12C Radiator Hose Upper Wate
CYHFP122704
Engine Assembly For Volvo D7D
SSFP210152
V-Belt Pulley Voe20800016 For Volvo D6D D7D Engine Ec210B Ec240B Ec290
FP180527
Cooling Water Temperature Sensor 20513340 For Volvo Engine D13B D16C D

Browse all Volvo Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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 & Thrust Set (+0.25mm)
MaterialTri-metal alloy
ApplicationEngine crankshaft main journals
Service LifeReplace during engine overhaul
CompatibilityCummins B3.9, B4.5, B5.9, Isb, Qsb4.5, Qsb5.9; Volvo EC140
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom of failing main bearings is an increase in bottom-end engine noise, often described as a deep knocking sound that varies with engine speed. If left unaddressed, this can lead to excessive crankshaft wear and potential seizure of the crankshaft within the block. Continued operation with worn main bearings risks catastrophic engine failure.

Installation Tip

Ensure all crankshaft journals and bearing surfaces are meticulously cleaned and free of any debris before installation. Use the correct assembly lube on all bearing surfaces to prevent initial dry running.

Service Note

Inspect the crankshaft journals for scoring or wear, and replace connecting rod bearings and check piston rings when installing main bearings.