The Sawhamale Steering Spindle Kit Bushing, designed exclusively for your 169839, 169840, and 9040H lawn mower's metal shaft assembly, is a must-have for a smooth steering experience. This reinforced bushing ensures optimal control, minimizing friction and vibrations. Its high-quality, metal construction guarantees durability, making it ideal for outdoor use. With the Sawhamale Steering Spindle Kit Bushing, you can expect precise steering, precise control, and virtually no maintenance. Simply follow the simple installation guide, and you'll be cruising on a smooth ride in no time.