Cummins 5255739 Crankcase Breather PAI 050519OEMCROSS REFERENCE: 5255739 4945227 APPLICATION: Cummins 8. 3L ISC Multiple Use Application. DETAILS: Genuine Part Crankcase Breather Seperator BRAND: PAI 050519OEM Cummins 5255739 Crankcase Breather PAI 050519OEM. Diesel truck and replacement parts. Maintains crankcase ventilation and ensures consistent internal pressure balance. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50