There are 3 Wichmann engines types:  AC, AX and 28. IMSE BV, as an official distributor for the Belgian and Indonesian market supplies original parts. You are guaranteed to get the best quality parts with the latest technical modifications. Above the overview of the engine types we can offer parts for. These high quality medium bore 2-stroke trunk piston engines have been designed and manufactured since 1905 in Rubbestadneset – Norway.