The Perkins 400 Series is an extensive family of engines in the 0.5-2.2 liter range. The 3 cylinders 403-11 model is one of Perkins smallest engines, combining performance, low operating costs, and an ultra-compact package. From a packaging point of view, the 403-11 is the ideal engine for small industrial applications. Its simple, robust mechanical fuel system makes it easy to install and maintain.