Genuine Stihl/Viking 6371 702 0102 / 63717020102 mower blade for compatible Stihl RM 253 and Viking MB 253 lawn mowers. This genuine replacement cutting blade forms part of the mower's blade assembly and is designed to provide a clean, consistent cut while maintaining the correct balance during operation. Suitable for replacing a blunt, bent, chipped or damaged original blade and manufactured to the correct specifications for precise fit and reliable cutting performance. Stihl's RM 253.2 parts documentation identifies 6371 702 0102 specifically as the blade, while published specifications give a blade length of approximately 498–505mm.