The Toro 1086543 Shaft-Roller is an authentic OEM replacement component engineered for various Toro Groundsmaster and Reelmaster series mowers. This essential part plays a crucial role in the roller assembly, facilitating smooth movement and consistent ground contact for optimal cutting performance. Manufactured to Toro's rigorous specifications, it guarantees reliable operation and direct compatibility with models including the Groundsmaster 328-D, 3280-D, 3320, 3500-D, 3505-D, 4000-D, 4010-D, 4100-D, 4110-D, 4300-D, and Reelmaster 5010-H, 5210-D, 5410-D, 5510-D, 5610-D.