This is a highly detailed 3D crankshaft and piston assembly designed in SolidWorks, featuring a complete 4-cylinder engine mechanism with pistons, connecting rods, and crankshaft. The model accurately represents the kinematic motion and structure of an internal combustion engine.

File formats included:

• STEP

• SLDPRT

It is ideal for mechanical engineering study, motion analysis, and material analysis, as well as educational demonstrations and CAD visualization. The assembly is cleanly modeled, allowing easy modification, simulation, and rendering. It can also be used as a game or animation asset for mechanical or industrial scenes.