Roughneck 636 for sale. Price: SOLD More pictures will follow. Specifications Roughneck 636 Year: 2019 Length: 636 cm Width: 225 cm Engine: 200 hp Mercury Optimax, 2006 Engine hours: approx. 700 h Tube: Hypalon Seats: No seats, the owner will keep the seats. This Roughneck 636 is like new and has a Kalf trailer with it. All services have been done to the engine. The RIB is running perfect. For more information please contact us at or call: +31 515 44 23 27.