Rotary 6438. BLADE MTD 20"X 59/64"X11/16" MULCHER. Replaces MTD 942-0740. Fits Models: MTD: 11A-072A000, 11A-072A022, 11A-072A132, 11A-074A141, 11A-104B090, 11A-104K290, 11A-105A790 W-105, 11A-105D790, 11A-106F190 LC-106, 11A-109Q597, 11A-109Q897, 11A-702A190 LC-40, 11A-704A190 LC-40, 11B-106F190 LC-106, 11B-108C190 LC-106, 11B-109B190 LC-106 and more.
- Replaces: MTD: 942-0740
- Mulching Blade
- Center hole is square with points in the corners.
- LENGTH 20", WIDTH 2-1/4"