Lawn-Boy Mower Blade

This blade is designed as a direct replacement for Lawn-Boy Insight mowers manufactured in 2005 or later. Since it is a 21-inch blade, it is compatible with any 21-inch deck mower from that specific model range.

A high-lift blade features curved edges that create stronger airflow under the mower deck. This suction effect lifts the grass blades upright before they are cut, resulting in a more uniform finish and more efficient discharge of clippings.

We strongly recommend sticking to the manufacturer's specifications. This blade is engineered specifically for the geometry and airflow requirements of Lawn-Boy Insight decks, and using it on other brands may compromise cutting performance or safety.

You should generally inspect your blade at the start of every season. If you notice significant dullness, deep nicks, or bent edges that cannot be sharpened out, it is time to replace it to ensure a clean cut and prevent unnecessary strain on your mower's engine.

No, this listing is for the replacement blade only. You should reuse the existing mounting hardware from your current blade, provided it is still in good condition.