Set 8275-1 : Motorized Bulldozer [Technic] [BrickLink]
My collection of Lego Technics with 3 more on the way that I bought off E-bay. Lego technic 8275 motorized bulldozer, lego technic 42009 mobile crane mk II and lego technic 8258
LEGO 8275 Motorized Bulldozer Set Parts Inventory and Instructions - LEGO Reference Guide
LEGO Technic #8259 Mini Bulldozer compared to set 8275 - YouTube