The Mould King L4 Motor technical building kit offers a challenging construction experience for all technology enthusiasts. With a total of 1787 parts, it creates a detailed inline four-cylinder engine that brings the fascinating mechanics of real engine technology to life. The model features mechanically moving parts, including gears, a chain, and a rotating fan. Thanks to the electric drive, the complex movements can be clearly observed during operation. A structured instruction manual guides you step by step through the assembly of this detailed model.