VGUC Lego Duplo BLUE TRUCK CAB FLAT BED on gray Base 4x8 - has Hitch | eBay
Bricker - Part LEGO - 48125c03 Duplo Truck Semi-Tractor Cab with Dark Bluish Gray Base
BrickLink - Part 48125c05pb01 : LEGO Duplo Cabin Truck Semi-Tractor Cab with Blue Base and Box and Arrows and Globe Pattern [DUPLO, Vehicle] - BrickLink Reference Catalog