Husqvarna Blade 19" High Lift Part # 581055502

What It Is

The Husqvarna Blade 19” High Lift (Part #581055502) is an OEM replacement blade designed for 19-inch cutting decks. Its high-lift profile creates stronger airflow to improve grass discharge and bagging performance, making it ideal for mulching or collecting leaves and thick grass.

Fitment & Compatibility

Before buying, confirm your deck size is exactly 19 inches (center hole to blade tip). This blade fits select Husqvarna walk-behind mowers, including models like the LC221A, LC321A, and LC421A. It is not compatible with 21-inch or larger decks. Check your owner’s manual or existing blade part number—this is an OEM Husqvarna part, so it matches factory specs. Measure the center hole diameter (likely 1 inch) and the blade’s thickness (around 0.125 inches) to ensure it fits your spindle. Aftermarket blades may vary, but this OEM part guarantees fit for listed models.

Key Things to Buy

• Quality: OEM Husqvarna steel is heat-treated for durability. High-lift design increases airflow but may wear faster in sandy or rocky soil.
• Installation: Moderate difficulty—requires a socket wrench and blade removal tool. Torque the center bolt to 30-35 ft-lbs. Always disconnect the spark plug before working.
• Common gotchas: High-lift blades create more vibration if unbalanced. Use a blade balancer after installation. Also, they may strain the engine on very tall grass; avoid cutting more than 1/3 of grass height at once.
• Sharpening: Can be sharpened, but the high-lift curve makes it trickier than standard blades. Replace when nicked or bent—never straighten a bent blade.

Should You Buy It

Buy this if you own a compatible 19-inch Husqvarna walk-behind mower and need OEM-grade performance for bagging or heavy discharge. It’s a solid choice for users who prioritize airflow and clean cuts over extreme durability. If you mow on rocky terrain or want a budget option, consider a standard-lift aftermarket blade instead.