8TEN LawnRAZOR mulching mower blade for John Deere GX20249 GY20567 — 21-7/16" 2-pack, precision-cut steel

8TEN LawnRAZOR 21-7/16" mulching mower blade — a direct-fit replacement designed to restore cutting performance on compatible John Deere and similar models, sold as a convenient 2-pack.

When your mower's blade gets dull, bent, or damaged, cutting quality and mulching efficiency suffer. These 8TEN LawnRAZOR blades are precision-cut steel replacements that match the original dimensions and center bore so you can swap them in with minimal fuss. They are engineered for mulching and even clippings distribution on a range of lawn tractors and riding mowers.

Will these blades fit my John Deere or equivalent mower?

Yes — these blades are intentionally dimensioned to match the listed OEM parts and common machine models. Measure your existing blade to confirm the length and center hole size before ordering.

• Replaces OEM part numbers: John Deere GX20433, GX20249, GY20567, M128485.
• Confirmed model compatibility: John Deere L100, L105, L107, L108, L110, L111, L118.
• Also fits select Scotts and Sabre decks — check model cross-reference before installation.
• Blade specs: 21 7/16" length, 2 7/16" cutting width, 11/16" center hole, 0.1875" thickness.

How do these blades improve mulching and cut quality?

The LawnRAZOR profile is designed to lift clippings and keep them circulating under the deck long enough to be finely chopped. Sharper mulch reduces visible clumps and can speed decomposition back into the lawn, improving appearance without extra tools.

• High-lift geometry promotes superior grass circulation and recutting.
• Precision-cut edge reduces tear and ragged cuts when installed sharp.
• Consistent thickness prevents wobble and vibration for a smoother cut.
• Sold as a 2-pack so both sides of a twin-blade deck can be refreshed together.

What should I know before installing these replacement blades?

Installation is straightforward for anyone comfortable removing the mower deck or blade spindle nut. Always follow your mower manufacturer’s safety steps: disconnect spark plug, stabilize the machine, and use proper torque on mounting hardware.

• Disconnect spark plug and wear gloves before handling blades.
• Match blade orientation and cutting edge direction when mounting.
• Use manufacturer torque specs on spindle nuts to avoid loosening or damage.
• Inspect blade balance after sharpening; an unbalanced blade can damage the deck.

How long can I expect these blades to last, and can they be sharpened?

Blade life depends on use, terrain, and maintenance — frequent contact with debris shortens lifespan. These LawnRAZOR blades are made of durable steel and can be sharpened several times; however, repeated grinding will eventually change balance and profile.

• Sharpen as needed to restore edge — maintain factory bevel angle.
• Avoid grinding too much material to preserve balance and lift geometry.
• Replace if bent, cracked, or excessively thinned from sharpening.
• Keeping decks clear of rocks and sticks extends blade longevity.

Who is this for: Homeowners and lawncare pros who own compatible John Deere, Scotts, or Sabre mowers and need a reliable, direct-fit mulching blade replacement. The 2-pack suits twin-blade decks or keeps a spare on hand for faster service, offering OEM-equivalent specs for straightforward installation and improved mulch performance.