QSX15 Cummins Actuator 4089980 Parts Catalog Ref No. Part Name Part No. Required Actuator Kit 4089980 A/R Actuator Gasket 4902789 1 Metering Actuator 4902904 1 Pan Head Cap Screw 4954670 3 Above is the introduction of the 4089980 Cummins Actuator, while if you need Actuator 4089980, complete Cummins engine or other Cummins product, please further consult our sales.