Caterpillar CT660 Dump Truck STL 3D Print Model

The Caterpillar CT660 is a heavy-duty dump truck featuring a tandem rear axle configuration, a distinctive flat-nosed cab-over-style hood, vertical exhaust stack, and a large rectangular dump body with a roll-tarp system mounted above the cab. This highly detailed 3D model is provided in two versions — standard and windowed/lights — making it suitable for scale display models, dioramas, tabletop games, and RC body references. The model captures fine surface details including textured tires, diamond-plate steps, hinged tailgate, hydraulic hoist arms, and a full rear bumper assembly. Supplied as STL files ready for FDM or resin printing at any scale.

Print settings

FDM printing is recommended for larger scales (1:25–1:50); resin printing is ideal for smaller, high-detail scales. Print the cab and dump body as separate pieces oriented upright or at a slight angle to minimize support scarring on visible surfaces. Supports are required under the side mirrors, exhaust stack, hydraulic arms, and roll-tarp frame. An infill of 20–30% is sufficient for display purposes; use PETG or ABS if structural durability is needed.