Troy-Bilt Original Equipment 3-in-1 Blade for 21 in. Walk-Behind ...

The Craftsman 21" blade with part number 742P05643 is a genuine 3-in-1 mulching/bagging/side-discharge replacement blade for 21-inch walk-behind lawn mowers, featuring an S-shaped center hole for MTD, Cub Cadet, Troy-Bilt, and other compatible brands, designed for precise fit and optimal cutting performance.