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Mower Blade, 18"

Part# 91-637

This product has been discontinued. To see if there’s a substitution that meets your needs, please contact Technical Services at 800-223-5168 or use our Part Finder.

The Oregon® 91-637 replacement lawn mower blade is made to the exact OEM specification for optimum performance. Our blades are individually straightened and hardened to provide a consistent, cleaner cut and increase blade longevity.

Product Details

  • Center hole: 5/8"
  • Requires 3 blades for 54" cut and 2 blades for 36" cut
  • Enhanced mulching for bagging and discharge efficiency
  • Stays sharp and durable for longer
  • Replacement for major brand: Landpride

Specifications, Details & Support

Blade Width 2.50"
Thickness 0.203"
Blade Length 18"
Center Hole Size 5/8"
OffSet 0
Air Lift 1"
Color Black
Volume 50.35 in³
Product UOM Each
Weight (with Packaging) 2.35 Lb
Product Height 0.203
Product Length 18"
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

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