item is included in other kits: Item NumberDescription A-RG17897Major Engine Overhaul KitMODELS : Engine Parts > Gaskets John Deere COMBINE: 6600 (SN 335845 > ) John Deere COMBINE: 7700 (SN 335845 > ) John Deere INDUSTRIAL/CONSTRUCTION: ALL MODELS (6.404D, 6 CYL ENG W/ SN 335845 > , John Deere TRACTOR: 4040 (SN 335845 > ) John Deere TRACTOR: 4230 (SN 335845 > ).. more.