Time to replace the blades on your zero-turn mower? This Caltric 3-pack is a great value and a direct replacement for the original part number 510-417-901. These blades are compatible with a bunch of popular models, including the Dixon Kodiak SE 6125, Ram 61ZT, Ram Ultra 61, and several Husqvarna M-ZT61 models (always double-check your specific model and year to be sure!). Each blade is 20-3/4 inches long and 2.5 inches wide, with a 5-point star center hole. They're made to be durable and provide a clean cut for your lawn. Caltric is a major supplier of mower parts, so you know you're getting a quality aftermarket part. The pack comes with three blades, which is perfect because most 61-inch decks use three. Before you order, we strongly recommend comparing the picture of the blade shape and the center hole pattern to your old blades to ensure a perfect match. Keep your mower cutting smoothly and efficiently with this essential maintenance part.