This Kramp 75404044A V-belt serves as a high-quality aftermarket replacement for MTD 50-inch mower deck drive systems. With an effective inner length (Li) of 1270 mm (50 inches) and an outer length (La) of 1320 mm, and a width of 12.7 mm (1/2 inch), it is engineered to match the specifications of the original MTD 75404044A part. This durable 4L section V-belt ensures reliable power transmission for various MTD, Cub Cadet, and Yard-Man riding lawn mowers, providing a precise fit and long-lasting operation.