Lawn-Boy 89914P 21-Inch Mower Blade
Best replacement blade for owners of 2005 or newer walk-behind mowers.
Keep your Lawn-Boy mower running at its best with the Lawn-Boy 89914P 21-Inch Mower Blade. This durable replacement blade is engineered for optimal performance on Lawn-Boy models manufactured in 2005 and newer. Its high-lift design ensures superior grass clipping discharge, while the 21-inch cutting length provides efficient lawn maintenance. Designed to deliver a clean, precise cut, this blade is an essential component for keeping your compatible Lawn-Boy Insight mowers in top working condition.
$28.49
Owner Satisfaction
4.5
/ 5
Category Rank
123
/ 335
#123 in Lawn Mower Blades
Price vs Category Average
-38%
Below average
Blade Length
21
/ inches
Who it's for
- Homeowners prioritizing clean cuts and efficient grass bagging
- Users wanting a long-lasting blade that resists impact damage
- Lawn-Boy owners seeking guaranteed compatibility and smooth operation
Who should skip it
- Budget-conscious shoppers looking for affordable aftermarket alternatives
- Mowers working in sandy soil who dislike frequent maintenance
- Owners of older or non-Lawn-Boy equipment needing universal fitment
Performance breakdown
Cutting Precision
High-lift geometry delivers a crisp, clean finish across various grass types.
Discharge Efficiency
Engineered to maximize airflow for consistent, clog-free clipping ejection.
Material Durability
Robust steel construction withstands heavy seasonal use and minor debris impacts.
Installation Simplicity
Direct OEM fitment makes swapping out old blades a straightforward task.
Compatibility Range
Specifically tailored for Lawn-Boy models produced from 2005 and beyond.
Edge Retention
Hardened metal composition maintains a sharp edge throughout the mowing season.
Key Specs
Blade Length
21 inches
Model Number
89914
OEM Part Number
89914P
Compatible with Lawn-Boy mowers (2005 and newer)
Cutting Style
High Lift
Application
Lawn mower
Compatible Mower Type
Push Mower
Features
- Direct replacement for 2005+ Lawn-Boy mowers
- High-lift design for superior discharge
- Ensures a clean, efficient cut
- 21-inch cutting length
- Designed for Lawn-Boy mowers
- Durable construction for longevity
What customers say
Customers highly value this Lawn Boy blade for its perfect compatibility and robust performance as a genuine OEM replacement. Users report that it immediately restores superior cutting quality, significantly improving both bagging and mulching capabilities compared to worn blades. The blade's thickness suggests excellent durability and edge retention against yard debris. While installation is straightforward, the primary point of friction is the premium price. Despite acknowledging the superior fit and quality, some users find the cost high relative to generic options. Overall, the sentiment strongly favors the blade's reliability and optimal performance, confirming that paying more for the genuine part is generally worthwhile for dedicated owners.
Know before you buy
This blade is designed specifically for Lawn-Boy mowers manufactured in 2005 or later. Check your mower's manual or the model number on the deck to confirm it requires a 21-inch blade.
The high-lift design creates stronger airflow under the mower deck. This helps lift grass blades upright for a more uniform cut and improves the discharge of clippings into the bag or out of the side chute.
This blade is engineered specifically for Lawn-Boy equipment. While some dimensions may match other brands, it is best to use the manufacturer-recommended part to ensure proper fitment and safe operation.
You should typically replace your blade once a year or whenever you notice the edges becoming dull or damaged. If your grass looks frayed or brown at the tips after mowing, it is a clear sign that your blade needs sharpening or replacement.
Yes, this blade arrives with a factory-sharpened edge. You can install it immediately upon receipt, though you should always ensure the mower is powered off and the spark plug wire is disconnected before performing any maintenance.
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Ready to buy?
$28