NTA855 Cummins Injector 3054250 Parts Catalog Ref No. Part Name Part No. Required 　 Injector 3054250 6 1 Compression Spring 166009 1 2 Check Ball 167157 1 3 Injector Gasket 173086 1 4 Screen Retainer 174299 1 5 Injector Cup Retainer 185138 1 6 O-Ring Seal 193736 3 7 Roll Pin 203426 2 8 Filter Screen 3008706 1 9 Injector …