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Mower Blade, 18"

Part# 91-623

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.

You can count on the Oregon® 91-623 replacement lawn mower blade to be the best in the industry. Our 26 quality standards ensure that you’re buying a sharp, high-performance blade that mounts properly. It delivers a clean cut for quality results.

Product Details

  • Center hole: 5/8"
  • Enhanced mulching for bagging and discharge efficiency
  • Extended cutting edge, allows for more efficient cutting during rotations
  • Aggressive blade angle increases air flow to push debris up and out for superior bagging or side discharge
  • Major brand replacement: DR
  • Requires 3 blades for a 54" cut and 2 blades for 36" cut

Specifications, Details & Support

Blade Width 3.00"
Thickness 0.203"
Blade Length 18"
Center Hole Size 5/8"
OffSet 0
Air Lift 1-1/2"
Color Black
Volume 392.258 in³
Product UOM Each
Weight (with Packaging) 2.782 Lb
Product Height 0.203
Product Length 18"
Product Width 3

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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