Husqvarna 573953001 42-Inch Gator Blade 14-5/8" – Genuine OEM Replacement Mower Blade

Part Number: 573953001
Category: Lawn Mower Replacement Parts & Cutting Components
Type: 42-Inch Gator Blade 14-5/8" – Genuine OEM Replacement Mower Blade

The Husqvarna 573953001 42-Inch Gator Blade 14-5/8" is a genuine OEM replacement cutting component designed for select Husqvarna lawn tractors, riding mowers, and compatible 42-inch mower deck assemblies.

Product Specifications

• Part Number: 573953001
• Manufacturer: Husqvarna
• Product Type: Gator Mower Blade
• Deck Application: 42-Inch Mower Deck – Model Dependent
• Blade Length: 14-5/8 Inches
• Alternate Description: Gator Blade / Mulching Blade / Replacement Mower Blade / Lawn Tractor Blade
• Component Type: Mower Deck / Cutting Component
• Primary Application: Lawn Mowing Equipment
• Common Equipment Types: Lawn Tractors / Riding Mowers – Model Dependent
• System: Mower Deck / Cutting System
• Function: Cuts Grass and Helps Process Grass Clippings Within the Mower Deck
• Installation Location: Mower Deck / Blade Spindle Assembly
• Associated Components: Spindle / Mandrel / Blade Hardware / Mower Deck
• Replacement Type: Direct OEM Replacement
• OEM Status: Genuine Husqvarna OEM Part
• Condition: New
• Quantity: 1 Gator Blade
• Part Number Reference: 573953001
• Alternate Number Format: 573 95 30-01

Features & Benefits

• Genuine Husqvarna OEM replacement mower blade
• Designed for applicable 42-inch mower deck configurations
• 14-5/8-inch blade length
• Gator-style cutting and clipping-processing profile
• Replaces the applicable original equipment mower blade
• Helps restore clean and consistent grass cutting
• Supports effective clipping circulation beneath the mower deck
• Helps process grass clippings during mowing
• Supports proper mower deck cutting performance
• Designed to match original equipment mounting requirements
• Application-specific blade profile and dimensions
• Suitable for replacing dull, bent, chipped, worn, or damaged blades
• Direct replacement for equipment specifying 573953001
• Sold individually

Gator Blade Function & Importance

The 573953001 Gator Blade serves as a cutting and clipping-processing component within the applicable Husqvarna mower deck.

A simplified arrangement can be represented as:

Deck Drive → Spindle → 573953001 Gator Blade → Grass Cutting & Clipping Processing

As the blade rotates, the sharpened cutting edge cuts the grass while the blade's profile helps manage and process clippings beneath the deck. When used with the proper mower configuration, this can support effective mulching and redistribution of finer grass material onto the lawn.

A worn or damaged blade may contribute to:

• Uneven grass cutting
• Torn or ragged grass tips
• Reduced mulching performance
• Poor clipping processing
• Uncut strips of grass
• Excessive mower deck vibration
• Abnormal deck noise
• Reduced cutting efficiency
• Increased load on spindle components

Bent, cracked, or severely damaged mower blades should be replaced rather than repaired because blades operate at high rotational speeds.

Replacement, Inspection & Installation

Replacement of the Husqvarna 573953001 42-Inch Gator Blade may be appropriate if the original has:

• Become dull
• Developed excessive cutting-edge wear
• Become bent or distorted
• Developed chips or cracks
• Sustained impact damage
• Developed excessive corrosion
• Become unbalanced
• Developed damaged mounting surfaces
• Produced increasingly uneven cutting results

When replacing the blade, inspect the surrounding spindle or mandrel, blade mounting hardware, mower deck, spindle bearings, drive components, and adjacent blades for wear or damage.

Before installation, park the mower on a stable, level surface, shut off the engine completely, remove the ignition key, and prevent accidental starting. Wear appropriate hand protection when handling mower blades.

Install the replacement 573953001 Gator Blade in the correct factory orientation using the specified mounting hardware and torque requirements. Verify that the blade is securely mounted and has adequate clearance before operating the mower.

Fitment & Important Notes

• Verify compatibility with your exact Husqvarna mower model, product number, serial number, mower deck configuration, and production revision before ordering.
• Match part number 573953001 directly with the applicable OEM parts documentation.
• 573953001 is identified as a 42-Inch Gator Blade 14-5/8" for applicable mower configurations.
• The 42-inch designation refers to the applicable mower deck configuration, while the listed individual blade length is 14-5/8 inches.
• A 42-inch mower deck may use multiple blades; verify the required blade quantity for your exact mower before ordering.
• Do not assume every Husqvarna 42-inch mower deck uses 573953001.
• Mower blades that appear similar may differ in length, width, thickness, center-hole design, mounting configuration, lift profile, and cutting geometry.
• Do not select a replacement blade solely by deck width or approximate appearance.
• Use 573953001 as the primary OEM fitment reference.
• Verify blade orientation before tightening the mounting hardware.
• Inspect the spindle and blade hardware whenever replacing a blade damaged by impact.
• Replace blades showing cracks, severe bending, significant material loss, or damaged mounting areas.
• Do not weld, straighten, drill, grind mounting holes, or otherwise modify a damaged blade for reuse.
• If sharpening a serviceable blade, maintain proper blade balance before reinstallation.
• Use appropriate gloves when handling mower blades because cutting edges may be sharp.
• Shut off the equipment and prevent accidental starting before servicing the mower deck.
• Reinstall all applicable guards, shields, and covers before operation.
• This listing is for one Husqvarna 573953001 42-Inch Gator Blade 14-5/8" only unless otherwise specified. Additional blades, spindle assemblies, blade bolts, washers, adapters, belts, and other mower deck components are sold separately unless explicitly included.
• Match Husqvarna 573953001 with your mower's OEM parts documentation before ordering to ensure proper fitment.