The Zahn™ series of trenchers consist of three power units and set of compatible front ends. One of these machines is the Zahn R300, which is designed to be powerful, productive and fast. The unit includes a Kohler® gas engine, operator's console, and articulation joint that enables the front end to perform like a dedicated unit. The two-wheel-drive R300 powers two types of front-end trenchers, while its four-wheel-drive InterChange counterpart accepts up to seven types of front ends: trencher, plow, dumper, tiller, backhoe, stump grinder, and a tool carrier that can drive more than 40 quick-change attachments.