Caterpillar , Disponible International® HX520 Tandem Tractor and XL 120 HDG Trailer with Cat® 12M3 Motor Grader (020347) 1:50 SCALE EN STOCK Caterpillar , Disponible International® HX520 Tandem Tractor and XL 120 HDG Trailer with Cat® 963K Track Loader (020353) 1:50 SCALE EN STOCK