This aftermarket deck spindle fits select Simplicity 44 and 50 mower decks. It supports the mower blade and transfers pulley drive into blade rotation, helping keep the deck cutting properly when the original spindle is worn, noisy, or damaged. Built to match OEM This spindle is made as a direct replacement for the original deck spindle design, with mounting points and blade/pulley interfaces intended to match the factory layout. It is built to fit the deck without changing the surrounding mower deck components. Installation Installation is a standard mower deck spindle replacement: remove the deck belt and blade, unbolt the old spindle, and install the replacement in the same location. Basic hand tools are typically used, and no deck modifications are intended when the part is matched to the correct application. .product-description-v2 { font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, sans-serif; color: #1d1d1d; line-height: 1.55; max-width: 720px; } .product-description-v2 > div { margin-bottom: 18px; } .product-description-v2 h3 { font-size: 16px; font-weight: 700; color: #1d1d1d; margin: 0 0 8px; } .product-description-v2 p { margin: 0; font-size: 15px; } @media (max-width: 768px) { .product-description-v2 { font-size: 15px; } }