This aftermarket variable speed pulley is a replacement drive component for compatible John Deere lawn and garden tractor applications. It belongs in the belt drive system and helps control ground speed by changing the effective pulley ratio as the drive is adjusted. Built to match OEM This pulley is built to match the original-style fit and function for the intended drive system. It is made as a faithful aftermarket replacement, with the correct pulley form and mounting layout needed for proper belt tracking and operation. Installation Installation is a straightforward replacement job for a mechanic familiar with belt drive service. Remove belt tension, take off the worn pulley, install this replacement in the same position, and check belt alignment and adjustment before putting the tractor back to work. .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; } }