Under the name cADSttachements appear regularly exclusive small series of KITS that allow you to add a machine variant or a unique work tool to your Caterpillar collection.  

Ad Gevers has once again succeeded in providing many (Caterpillar) Pipelayer collectors with the opportunity to give their collection or diorama even more appearance with these both very accurate Caterpillar 583K Counterweight Kit and Caterpillar 583K Roll-Over Protection System (ROPS) Kit in 1:48th scale. Especially desgined for the Caterpillar 583K Pipelayer they are an exact replica's from the 1:1.  

I am very happy and proud that Ad was willing to build and spray both kits for me. Two unique new acquisitions and great additions to my Caterpillar 583K Pipelayer scale model. #minimasterpiece