The Simplicity 1655839A is a genuine OEM pulley, precisely engineered for various Simplicity lawn and garden tractor models. With an outside diameter of 114.3 mm (4.5 inches), an inside diameter of 15.88 mm (0.625 inches), and a width of 28.58 mm (1.125 inches), this durable component is essential for maintaining correct belt tension and facilitating efficient power transmission. It ensures reliable performance and a precise fit, contributing to the smooth operation and longevity of your equipment.