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Description
6821 – Rotary Right-Hand Mower Blade 15-5/16" x 2-1/2" (Replaces Exmark 653101, 103-2529-S & Windsor 50-4065)
The Rotary 6821 Right-Hand Mower Blade is a premium OEM-quality replacement blade engineered for compatible Exmark and Windsor commercial lawn mowers. Measuring 15-5/16 inches long with a 5/8-inch center hole, this heavy-duty blade delivers clean, consistent cutting performance while maintaining excellent durability in demanding mowing conditions.
Manufactured from heat-treated, high-strength steel, the Rotary 6821 is precision balanced to reduce vibration, improve cutting efficiency, and extend the life of mower deck components.
Product Details
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Part Number: 6821
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Brand: Rotary
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Part Type: Mower Blade
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Cut Direction: Right-Hand
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Blade Length: 15-5/16 Inches
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Blade Width: 2-1/2 Inches
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Center Hole Diameter: 5/8 Inch
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Blade Thickness: 0.2040 Inch
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Material: Heat-Treated High-Strength Steel
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OEM Replacement Quality
Replaces OEM Part Numbers
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Exmark: 653101
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Exmark: 103-2529-S
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Exmark: 103-2529S
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Windsor: 50-4065
Key Features
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Premium OEM-quality replacement blade
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Right-hand cutting configuration
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Heat-treated steel for superior durability
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Precision-balanced to reduce vibration
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Delivers a clean, even cut
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Excellent wear resistance
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Direct-fit replacement
Function
The Rotary 6821 Right-Hand Blade rotates at high speed to deliver a precise, even cut while promoting healthy turf growth. Its precision-balanced design helps minimize vibration, improves mowing efficiency, and extends the service life of spindle assemblies and mower deck components.
Compatible Equipment
The Rotary 6821 is designed for compatible Exmark and Windsor commercial mower decks utilizing the listed OEM blade part numbers.
Always verify your mower model, blade dimensions, center hole size, and OEM part number before ordering.
Who Is This For?
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Commercial landscapers
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Lawn maintenance professionals
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Groundskeepers
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Property maintenance crews
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Homeowners with compatible Exmark or Windsor mowers
Recommended Property Size
Ideal for residential estates, commercial properties, parks, schools, municipalities, sports fields, golf courses, and professional turf maintenance operations.
Pros
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OEM-quality replacement
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Heavy-duty heat-treated steel construction
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Precision-balanced for smooth operation
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Produces a clean, professional-quality cut
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Long-lasting durability
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Direct replacement for Exmark and Windsor blades
Cons
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Fits only compatible mower deck applications
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Blade should be replaced if bent, cracked, or excessively worn
Comparison – Rotary 6821 vs Standard Replacement Blades
Rotary 6821
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Precision OEM-quality construction
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Excellent cutting performance
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Reduced vibration
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Longer service life
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Reliable fit and balance
Generic Replacement Blades
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May have inconsistent balance
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Lower-quality steel construction
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Faster edge wear
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Less consistent cutting performance
Why Buy from Barry's Power Equipment?
Barry's Power Equipment supplies premium Rotary replacement blades trusted by professional landscapers and commercial mowing contractors.
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High-quality OEM replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert parts support
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Extensive inventory for Exmark, Windsor, Rotary, and other leading commercial mower brands
