ISM11 Cummins Cylinder Head Top Level Assembly 2864028 Parts Catalog Ref No. Part Name Part No. Required 　 Cylinder Head PP42729 　 　 Head , Cylinder Top Level Assembly 2864028 1 1 Cylinder Head 2864024 1 2 Expansion Plug 3007632 2 3 Expansion Plug 206741 2 4 Expansion Plug 3007635 8 5 O-Ring Seal 3035026 6 6 Injector Sleeve 3417717 …