* This part replaces: 781-0086

11B-022B205

MTD - 786-0056-0638 - COVER-BELT W/O REV

Tread Depth - 20

312-180-000

Oregon 91-443 Mulching Blade for 21" John Deere - M111453, M112738, M112972, M113492, M124767, M125413, M125808, M77178, M92810 Hubs & Pulleys * This part replaces: 781-0086SPECIFICATIONS Blade Width 2. 75" Thickness 0. 134" Blade Length 20 7 8" Outer Hole Diameter 3 8" Center Hole Size 7 8" Center to Center 3 11 16" OffSet 3 8" Air Lift 1" PRODUCT FEATURES The Oregon 91 443 lawn mower blade is created to provide consistency and longevity, while delivering a cleaner cut and quality results. PRODUCT DETAILS Center hole: 7 8" Requires 1 blade for 21" cut Use with John Deere: Try cycler walk behind mower, 145Z Superior