This deck idler is an aftermarket replacement for compatible Exmark mower decks. It belongs to the deck belt drive system and helps route and maintain belt contact so the blades run properly under load. Built to match OEM This part is made to match the original idler’s fit and function for the intended deck application. The mounting layout and working profile are designed to line up with the existing belt path and hardware location. Installation Installation is typically a bolt-on job using common hand tools. Remove belt tension, swap the old idler for the replacement, then reinstall and check belt routing before running the deck; no modifications are intended. .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; } }