Replacement Lawn Mower Deck Belt 1311121 compatible with Toro 74504 74504TE 482530 74518 74542TE 79504 79518 and Exmark 1163455 653368 for Grandstand mowers with 48 inch decks What this belt does Transfers drive power from the engine or PTO to the 48 inch mower deck, keeping blades turning at the correct speed. Replaces worn, cracked, or stretched belts to restore reliable deck operation and maintain cutting performance. Key benefits Direct fit for listed model numbers, simplifying installation and reducing downtime. Engineered to match original equipment dimensions for correct routing and tension. Durable construction for sustained performance under normal mowing conditions. Consistent power transfer that helps prevent slippage and uneven blade engagement. Compatibility and size Part number 1311121 Fits Grandstand style mowers with 48 inch decks Compatible with Toro models 74504, 74504TE, 482530, 74518, 74542TE, 79504, 79518 Compatible with Exmark models 1163455, 653368 Performance and materials Built from a durable belt compound with reinforced internal cords to maintain tension and resist stretching Designed for reliable engagement with deck pulleys and idlers to support consistent cut quality Suitable for routine mowing and heavy residential or light commercial use when operated according to equipment guidelines Installation notes Direct replacement for the listed part number Inspect pulleys and idlers during replacement to ensure proper belt routing and longevity Follow mower manufacturer instructions for safe installation and tensioning Typical use scenarios Seasonal maintenance: a worn belt as part of spring tune up to ensure the deck performs properly during the mowing season. after failure: Install when the original belt shows cracking, glazing, or slipping to restore blade drive and cut quality. Fleet upkeep: Keep spare belts on hand for quick replacement on Grandstand mowers used in large lawns or commercial properties to minimize downtime. Why choose this replacement belt Exact part number match and model compatibility reduce the risk of fit issues Practical design focused on dependable power transfer and straightforward installation Clear part identification makes maintenance and ordering easier Note: Verify the listed part number and mower model before to confirm compatibility.