With an advanced suspension system and a commercial-grade 52” mowing deck, the STIHL RZ 552 zero-turn mower is built for durability, operator comfort, and a long life span. The 27 hp Briggs & Stratton® engine with five-step cyclonic air filtration allows for longer service intervals between filter changes, and the Hydro-Gear® ZT-3400 transaxles enable ten mph forward ground speed and five mph in reverse, allowing for smooth and efficient cutting.