Husqvarna 532421825 22-Inch Premium Precision Blade – Genuine OEM Replacement Mower Blade

Part Number: 532421825
Category: Lawn Mower Replacement Parts & Cutting Deck Components
Type: 22-Inch Premium Precision Blade – Genuine OEM Replacement Mower Blade

The Husqvarna 532421825 22-Inch Premium Precision Blade is a genuine OEM replacement cutting blade designed for select Husqvarna walk-behind lawn mowers and compatible 22-inch mower deck applications.

Product Specifications

• Part Number: 532421825
• Manufacturer: Husqvarna
• Product Type: Premium Precision Mower Blade
• Factory Designation: Blade 22+ Premium / Precision FGD/RGD
• Deck / Cutting Designation: 22-Inch – Application Dependent
• Alternate Description: 22-Inch Mower Blade / Premium Cutting Blade / Precision Mower Blade / Walk-Behind Mower Blade / Replacement Cutting Blade
• Component Type: Mower Deck / Cutting System Component
• Primary Application: Lawn & Garden Equipment
• Common Equipment Types: Walk-Behind Lawn Mowers – Model Dependent
• System: Mower Cutting Deck / Blade System
• Function: Cuts Grass and Supports Proper Clipping Movement Within the Applicable Mower Deck
• Installation Location: Under Mower Deck / Blade Adapter or Engine Crankshaft Assembly – Model Dependent
• Associated Components: Blade Adapter / Blade Bolt / Washer / Engine Crankshaft / Mower Deck – Model Dependent
• Replacement Type: Direct OEM Replacement
• OEM Status: Genuine Husqvarna OEM Part
• Condition: New
• Quantity: 1 Mower Blade
• Part Number Reference: 532421825
• Alternate Number Format: 532 42 18-25

Features & Benefits

• Genuine Husqvarna OEM replacement mower blade
• Factory-designated 22-inch Premium Precision cutting blade
• Designed for compatible Husqvarna walk-behind mower applications
• Replaces the applicable original equipment cutting blade
• Helps restore clean and consistent grass cutting performance
• Supports proper airflow and clipping movement within the mower deck
• Helps maintain the intended factory cutting configuration
• Application-specific blade profile, cutting edges, mounting interface, and geometry
• Designed to interface with compatible OEM blade mounting components
• Helps maintain proper blade balance when installed and maintained correctly
• Suitable for routine mower maintenance and cutting-system repair
• Appropriate for replacing dull, bent, chipped, worn, damaged, or unbalanced blades
• Helps restore mowing performance when the original blade has deteriorated
• Direct replacement for equipment specifying 532421825
• Sold individually

Mower Blade Function & Importance

The 532421825 Premium Precision Blade is the primary cutting component within the applicable Husqvarna mower deck.

A simplified cutting arrangement can be represented as:

Engine Crankshaft / Blade Drive → Blade Adapter → 532421825 Mower Blade → Grass Cutting & Clipping Movement

During operation, the blade rotates at high speed beneath the mower deck. Its sharpened cutting edges cut the grass while the blade's shape and geometry influence airflow and the movement of clippings through the deck.

A properly functioning mower blade helps provide:

• Clean grass cutting
• Consistent cutting height
• Efficient clipping movement
• Proper airflow beneath the mower deck
• Reduced need for repeated passes
• Smooth cutting-system operation
• Consistent mowing performance
• Maintenance of the intended factory cutting characteristics

A worn or damaged blade may contribute to ragged grass tips, uneven cutting, excessive vibration, poor clipping movement, reduced mowing quality, increased operating load, or an unbalanced cutting system.

A blade that is bent, cracked, severely damaged, or excessively worn should be replaced rather than returned to service.

Replacement, Inspection & Installation

Replacement of the Husqvarna 532421825 22-Inch Premium Precision Blade may be appropriate if the original has:

• Become excessively dull
• Developed chipped or damaged cutting edges
• Become bent or distorted
• Developed cracks or structural damage
• Become excessively worn from repeated sharpening
• Developed significant corrosion or material loss
• Become unbalanced
• Sustained impact with rocks, roots, curbs, or other solid objects
• Produced excessive vibration during mower operation

When replacing the blade, inspect the surrounding blade adapter, mounting bolt, washers, crankshaft or blade-drive interface, mower deck, and associated mounting hardware for wear or damage.

Before beginning service, shut off the mower completely, allow all moving components to stop, disconnect the spark plug or applicable power source, and prevent accidental starting. Wear appropriate gloves when handling the blade because the cutting edges can cause injury even when the mower is not operating.

Note the original blade orientation, mounting arrangement, washer position, and hardware sequence before removal.

Install the replacement 532421825 Premium Precision Blade in the correct factory orientation. Make sure the blade is properly seated against the applicable adapter or mounting surface and tighten the blade hardware according to the equipment manufacturer's specified procedure and torque requirements.

After installation, verify that the blade rotates freely through its intended path without contacting the mower deck or other components.

Fitment & Important Notes

• Verify compatibility with your exact Husqvarna mower model, product number, serial number, cutting deck configuration, and production revision before ordering.
• Match part number 532421825 directly with the applicable OEM parts documentation.
• 532421825 is identified as a 22-Inch Premium Precision Mower Blade for applicable Husqvarna equipment.
• The 22-inch designation refers to the applicable mower/cutting-system designation and should be verified against the OEM parts documentation rather than used as the sole fitment criterion.
• Do not assume every Husqvarna mower with a 22-inch cutting width uses 532421825.
• The exact blade length, width, thickness, lift profile, center mounting configuration, cutting-edge geometry, and equipment application are model dependent.
• Similar-looking mower blades can differ in mounting pattern, center opening, overall dimensions, lift geometry, cutting profile, and equipment compatibility.
• Do not select a replacement blade solely by approximate length or visual appearance.
• Use 532421825 as the primary OEM fitment reference.
• The factory shorthand associated with the blade, including Premium / Precision and FGD/RGD references, should be treated as OEM application/designation terminology rather than assumed specifications unless confirmed by current Husqvarna documentation.
• Inspect the blade adapter and mounting hardware after any significant blade impact.
• A damaged blade adapter, crankshaft, or mounting component can cause vibration even after a new blade has been installed.
• Never attempt to straighten, weld, heat, reshape, or repair a cracked or significantly bent mower blade.
• If sharpening is performed during future maintenance, maintain proper blade balance and do not remove excessive material.
• Install the blade in the correct orientation; an upside-down or improperly mounted blade can significantly reduce cutting and airflow performance.
• Always secure the blade using the correct OEM-specified mounting hardware and tightening procedure.
• This listing is for one Husqvarna 532421825 22-Inch Premium Precision Blade only unless otherwise specified. Blade adapters, bolts, washers, mower decks, and other associated components are sold separately unless explicitly included.
• Match Husqvarna 532421825 with your mower's OEM parts documentation before ordering to ensure proper fitment.