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Gator® G3™ Blade, 21"

Part# 98-631

This product is only available through retailers or servicing dealers.

Oregon® Gator® G3™ 98-631 is your go-to blade in all conditions including wet, dry, and sandy turf. Gator® G3™ blades offer superior mulching, fewer bag stops, and cleaner side discharge than the standard manufacturer blade. It’s not a replacement blade. It’s an upgrade.

Product Details

  • Center hole: bow-tie
  • Aggressive blade angle increases air flow to push debris up and out for superior bagging or side discharge
  • Gator Mulcher® provides cleaner, more efficient cutting performance can eliminate the need to bag, saving time and hassle
  • Replacement for major brand: Bolens

Specifications, Details & Support

Blade Width 2.50"
Thickness 0.187"
Blade Length 21"
Outer Hole Diameter 5/16"
Center Hole Size bow-tie
Center-to-Center 2-1/2"
OffSet 5/16"
Air Lift 3/4"
Gator Blade Series Gator® G3™
Color Black
Volume 343.5 in³
Product UOM Each
Weight (with Packaging) 2.52 Lb
Product Height 0.187
Product Length 21"
Product Width 2.5

Model Fit Guide and Parts Cross Reference

Need Help? Contact Customer Service at 800-223-5168 or email us at

Fit Guide

Replacement Guide


Average Customer Rating

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Showing reviews 2 of 2

  • 5.0

    Benjamin Briggs


    Great for mulching

    I use these blades year long. They do a great job mulching grass, unless it is super tall then a second pass is required. In the fall the gator blades turn leaves into dust. I let the grass get tall in the fall to add some nitrogen to break down the leaves. By the spring it is all composted on the lawn not raking required. I sharpen every 50 hours with about 5 sharpening before replacement. Used with Cub Cadet RZT SX46 with a fabricated deck.

  • 2.0

    Doug Henson


    Which side up on the blade

    Blade should be stamped top or bottom. No instructions included. Started with it backwards and flipped it and re installed. Still doesn't cut well. I spend a lot of time backing it up for grass that it didn't cut. Have to overlap cutting 4" or it doesn't cut all the way out :- (

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