Description Caterpillar Wheel Loader #966D (35S1 and Up) (94X1 and Up) (99Y1 and Up) Operator's Manual (OPT) Sections and Models:Manuals > ManualsCaterpillar LOADER: 966D (35S1>, 94X1>, 99Y1>)Machine Types : LoaderMakes : CaterpillarModels : 966dModels :