Crankshaft bearing shell, main bearing and thrust bearing for Cummins L, ISLe, 6CT diesel engines, aftermarket sliding bearing components to support crankshaft, reduce friction and control crankshaft axial movement. All part numbers are cross-referenced against OEM specs for direct matching.

Part numbers: 3945917, 3800270, 3802210, 3944163, 5522129, 5523039
Fits: Cummins L, ISLe, 6CT diesel engine
Position: Crankshaft journal support and axial limit

What you are ordering
Price is per bearing shell / thrust bearing. Multiple part numbers are separate variants, please select the correct PN from variant options. These bearings are not interchangeable. Different part numbers have different sizes and tolerance grades. Wrong selection will lead to abnormal oil pressure, crankshaft wear and engine seizure.

Specifications
Material: bi-metal alloy, steel back
Structure: precision thin-wall bearing shell
Clearance & load rating: calibrated to OEM standard
Finish: anti-friction alloy surface, oil groove precision machined
Packing: individual protective bag, marked with part number

When to replace
Replace the main bearing and thrust bearing when surface abrasion, scoring or alloy peeling occurs. Common failure signs: low engine oil pressure, abnormal knocking noise, crankshaft axial play out of tolerance. Replace bearings during engine overhaul, and inspect crankshaft journal roundness at the same time.

Fitting notes
Strictly confirm engine serial number and bearing size grade before ordering. Do not install bearings of different part numbers interchangeably. Follow Cummins service manual for bearing clearance inspection and assembly sequence. If you are not sure which PN matches your engine, send us engine serial number for confirmation.

Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.

Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.