Cummins ISX/QSX 4089981 Fuel Pump Timing Actuator PAI 180175CROSS REFERENCE: 4089981 4089981NX 4089981PX 4089981RX 4902905 4902905NX 4902905PX 4902905RX 5693748 5693748PX 5693748RX APPLICATION: Cummins ISX QSX Multiple Use Application. BRAND: PAI 180175 Cummins 4089981 Fuel Pump Timing Actuator PAI 180175. OEM replacement parts and truck components. Maintains accurate fuel timing operation. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50