Cummins 4B/6B 4955873 Thrust Bearing Kit PAI 172060OEMCROSS REFERENCE: 4955873 3800331 3802084 3927771 3925920 3906454 APPLICATION: Cummins 4B 3. 9 6B 5. 9 Multiple Use Application. DETAILS: Genuine Part OEM Number Description Quantity 4938954 BRG,MAIN,THR. 1 3901154 MAIN BEARING 1 BRAND: PAI 172060OEM Cummins 4B 6B 4955873 Thrust Bearing Kit PAI 172060OEM. Heavy truck parts and OEM replacement parts. Supports crankshaft alignment and stability. All components are proudly manufactured in the U. S. A. by