91-443 Mower Blade for John Deere
91-443 Mower Blade for John Deere
91-443 Mower Blade for John Deere is a replacement mower blade with a profile intended to restore consistent cutting performance. Match the complete part number, mounting pattern, dimensions, and equipment configuration before ordering.
Purpose and Value
A worn, bent, or incorrect blade can leave uncut strips, tear grass, increase vibration, and reduce discharge quality. Correct geometry helps restore an even cut and limits avoidable spindle and deck vibration.
Verified Supplier Specifications
| Blade length | 20-7/8" |
|---|---|
| Blade width | 2.75" |
| Thickness | 0.134" |
| Center hole | 7/8" |
| Outer hole | 3/8" |
| Center-to-center | 3-11/16" |
| Offset | 3/8 |
| Air lift | 1" |
Supplier-Verified Application Details
Center hole: 7/8" Requires 1 blade for 21" cut Use with John Deere: Try-cycler walk-behind mower, 145Z Superior mulching for bagging and discharge efficiency Enhanced hardening to keep the blade sharper and more durable Made to exact OEM specifications Replaces major brand: John Deere
Supplier Replacement Reference
Replaces major brand: John Deere SPECIFICATIONS, DETAILS & SUPPORT Blades 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" General Color Black Volume 62.36 in³ Product UOM Each Weight (with Packaging) 1.87 Lb Product Height 0.134 Product Length 20-7/8" Product Width 2.75 MODEL FIT GUIDE AND PARTS CROSS REFERENCE Fit Guide JOHN DEERE Replacement Guide J THOMAS JOHN DEERE ROTARY STENS SUNBELT
Deck quantity guidance: Requires 1 blade for 21" cut Use with John Deere: Try-cycler walk-behind mower, 145Z Superior mulching for bagging and discharge efficiency Enhanced hardening to keep the blade sharper and . Confirm the exact deck configuration before ordering.
What One Purchase Includes
One blade. Multi-blade decks require the quantity stated for the exact deck.
Fitment Safeguard
Verify the complete OEM or replacement number, mower or engine model, serial range, deck size, mounting pattern, orientation, and required quantity. Similar-looking parts can differ in offset, rotation, hole pattern, thread, connector, or other critical details.
Installation and Service
No product-specific installation manual was verified in the supplier record. Follow the equipment manufacturer's procedure. For blades, stop the engine, remove the key, disconnect the spark-plug lead, secure the blade, wear cut-resistant gloves, install in the correct orientation, and torque hardware to the equipment manufacturer's specification.