91-534 Low-Lift Mower Blade for Grasshopper — 21 in.
91-534 Mower Blade 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 | 21" |
|---|---|
| Blade width | 2.50" |
| Thickness | 0.250" |
| Center hole | 1/2" |
| Offset | 5/16 |
| Air lift | 1-3/16" |
Supplier-Verified Application Details
Center hole: 1/2" Requires 3 blades for a 61" cut Requires 2 blades for a 41" cut Enhanced hardening to keep the blade sharper and more durable Made to exact OEM specifications High-lift: The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge Replacement for a major brand: Gras
Supplier Model and Replacement Guide
Model Fit Guide and Parts Cross Reference Fit Guide Bush Hog Replacement Guide Bush Hog Grasshopper Rotary Stens Sunbelt Woods Product Details Center hole: 1/2" Requires 3 blades for a 61" cut Requires 2 blades for a 41" cut Enhanced hardening to keep the blade sharper and more durable Made to exact OEM specifications High-lift: The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge Replacement for a major brand: Gras
Deck quantity guidance: Requires 3 blades for a 61" cut Requires 2 blades for a 41" cut Enhanced hardening to keep the blade sharper and more durable Made to exact OEM specifications High-lift: The aggressive blad. 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.