Husqvarna 501082401 21-Inch Blade Assembly – Genuine OEM Replacement Mower Blade
Part Number: 501082401
Category: Walk-Behind Lawn Mower Blades & Cutting Parts
Type: 21-Inch 4-in-1 Mower Blade – Genuine OEM Replacement Blade
The Husqvarna 501082401 21-Inch Blade Assembly is a genuine OEM replacement mower blade designed for compatible Husqvarna 21-inch walk-behind lawn mowers. This premium 4-in-1 multipurpose blade is engineered for mulching, bagging, side discharge, and rear discharge applications, providing versatile cutting performance with compatible mower configurations. Husqvarna officially identifies 501082401 as a 21" 4-in-1 Walk Behind Mower Blade.
Product Specifications
- Part Number: 501082401
- Manufacturer: Husqvarna
- Product Type: Walk-Behind Mower Blade
- OEM Description: 21" 4-in-1 Blade Star Retail / ASM.BLADE.RPR.21".LOWES/HU.ORG
- Blade Size: 21-Inch Class
- Actual Blade Length: Approximately 20.984 in.
- Blade Width: Approximately 2.25 in.
- Blade Thickness: Approximately 0.132 in.
- Blade Type: 4-in-1 Multipurpose
- Cutting Functions: Mulching / Bagging / Side Discharge / Rear Discharge
- Mounting Type: Star Center
- Mounting Configuration: 2-Pin / 5-Star Center Hole
- Material: Hardened Steel
- Application: Walk-Behind Lawn Mower
- Compatible Brand: Husqvarna
- Fits Deck Size: 21 in.
- Replaces OEM Part Number: 586859604
- Related / Superseded Reference: 501082501
- OEM Status: Genuine Husqvarna OEM Part
- Condition: New
- Quantity: 1 Blade
Husqvarna's current product information specifies a 2-pin, 5-star center hole and confirms that the blade can be used for mulching, bagging, side discharge, and rear discharge. Husqvarna's 2026 dealer parts catalog cross-references packaged blade 501082401 with unpackaged OEM blade 586859604.
Features & Benefits
- Genuine Husqvarna OEM replacement mower blade
- Factory-designated 21-inch 4-in-1 multipurpose blade
- Designed for compatible Husqvarna walk-behind lawn mowers
- Supports mulching, bagging, side discharge, and rear discharge
- Manufactured from hardened steel for durability
- Features a factory-style star center mounting configuration
- Designed for proper balance and compatible mower operation
- Helps restore cutting performance when the original blade becomes dull or damaged
- Suitable for routine mower maintenance and blade replacement
- Helps provide a clean, consistent cut when properly installed and maintained
- Designed to maintain the mower's original cutting system configuration
- Ideal replacement for bent, chipped, dull, excessively worn, or damaged blades
- Direct replacement for compatible equipment requiring 501082401
- Genuine OEM component rather than a universal replacement blade
Applications
Confirmed applications include:
- Husqvarna 7021P 21" Walk-Behind Mower
- Husqvarna LC221A 21" Walk-Behind Mower
- Husqvarna LC221AH 21" Walk-Behind Mower
- Husqvarna L221A 21" Walk-Behind Mower
- Select Husqvarna 21-inch walk-behind lawn mowers
- 21-inch mower mulching applications
- 21-inch mower bagging applications
- Side-discharge mowing applications
- Rear-discharge mowing applications
- OEM replacement applications requiring 501082401
- Applications using unpackaged OEM blade 586859604
The 7021P, LC221A, LC221AH, and L221A are specifically listed as compatible models for the 501082401 blade.
Husqvarna's 2026 parts catalog describes 501082401 as the packaged 21" Mower Blade for compatible 21-inch mowers using the star-style center hole.
Important Notes
- Verify compatibility with your specific Husqvarna mower model, product number, serial number, deck configuration, and production revision before ordering.
- Husqvarna officially identifies 501082401 as a 21" 4-in-1 Walk Behind Mower Blade.
- The factory description for this blade is “21" 4-IN-1 BLADE STAR RETAIL.”
- Parts catalogs may identify the same component as “ASM.BLADE.RPR.21".LOWES/HU.ORG.”
- The blade supports mulching, bagging, side discharge, and rear discharge on compatible mower configurations.
- Husqvarna specifies a 2-pin, 5-star center hole mounting configuration.
- Husqvarna's 2026 parts catalog cross-references packaged blade 501082401 with unpackaged part number 586859604.
- Some OEM parts listings identify 501082401 as superseding 501082501.
- Do not select a replacement mower blade based solely on nominal blade length. Center-hole design, locating-pin configuration, blade profile, deck design, and mounting specifications must also match.
- Inspect the blade adapter, mounting bolt, washers, locating pins, spindle or crankshaft mounting area, and surrounding cutting deck components when replacing the blade.
- Replace bent, cracked, excessively worn, corroded, stripped, or otherwise damaged related mounting components as necessary.
- Disconnect the spark plug wire or otherwise disable the mower according to the manufacturer's instructions before servicing the blade.
- Mower blades are sharp. Wear appropriate protective gloves and handle the blade carefully during removal and installation.
- Install the replacement blade in the correct orientation and tighten the blade hardware according to the mower manufacturer's specified procedure and torque requirements.
- This listing is for one Husqvarna 501082401 21-Inch Mower Blade only unless otherwise specified. Blade adapters, bolts, washers, mounting hardware, and other mower components are sold separately.
- Match part number 501082401 with your mower's illustrated parts diagram or OEM documentation before ordering to ensure proper fitment.
