Rotary 11224 High-Lift Lawn Mower Blade for Exmark 60-Inch Deck
The Rotary 11224 is a notched high-lift replacement lawn mower blade for select Exmark 60-inch mower decks. It measures 20-1/2 inches long, 2-1/2 inches wide and uses a 15/16-inch center hole. This aftermarket blade replaces Exmark 103-6403 and 103-6403-S, Encore 543294 and Windsor 50-2813.
The notched high-lift design creates increased airflow beneath the mower deck, helping lift grass before it is cut and move clippings through the discharge opening. It is well suited to applications where strong side-discharge or bagging performance is required.
Rotary 11224 Blade Specifications
- Rotary part number: 11224
- Blade type: Notched high-lift mower blade
- Length: 20-1/2 inches
- Width: 2-1/2 inches
- Thickness: 0.204 inch
- Center-hole diameter: 15/16 inch
- Application: Select Exmark 60-inch mower decks
- Product type: Aftermarket replacement blade
- Package quantity: One blade
Replaces These Part Numbers
- Exmark 103-6403
- Exmark 103-6403-S
- Encore 543294
- Windsor 50-2813
Will the Rotary 11224 Fit My Exmark Mower?
The Rotary 11224 fits select Exmark mower applications that require a 20-1/2-inch blade with a 15/16-inch center hole. A 60-inch deck commonly uses three blades, but deck size alone does not guarantee compatibility.
Before ordering, compare the original equipment part number, mower model and serial-number range, blade dimensions, center-hole diameter and number of blades used by the deck.
Do not order by blade appearance or deck size alone. Exmark manufactured different 60-inch deck configurations that can require different blades.
What Is a High-Lift Mower Blade?
A high-lift blade has raised blade sections that produce increased airflow beneath the mower deck. This airflow helps stand grass upright before cutting and moves clippings toward the discharge chute or grass-collection system.
High-lift blades are commonly selected for strong side-discharge performance, bagging grass clippings, cutting taller or thicker grass and producing a clean, even cut.
Because high-lift blades move more air, they can create more dust in dry conditions and generally require more engine power than low-lift blades.
Installation and Safety
Shut off the mower, remove the key, disconnect the spark-plug lead or battery when appropriate, and allow all moving components to stop before servicing the mower deck. Install the blade with the cutting edges and lift wings facing in the direction specified by the equipment manufacturer.
Use the manufacturer's blade-bolt torque specification. Inspect the blade bolt, washer, spindle, adapter and mounting surface before installation. Replace damaged or excessively worn components.
For consistent cutting and deck balance, consider replacing all blades on a multi-blade deck as a matched set.
Frequently Asked Questions
What mower does the Rotary 11224 blade fit?
The Rotary 11224 fits select Exmark 60-inch mower decks that require a 20-1/2-inch high-lift blade with a 15/16-inch center hole. Verify the original part number, mower model and serial number before ordering.
What Exmark blade does Rotary 11224 replace?
The Rotary 11224 replaces Exmark blade numbers 103-6403 and 103-6403-S. It also replaces Encore 543294 and Windsor 50-2813.
What are the dimensions of the Rotary 11224 blade?
The Rotary 11224 measures 20-1/2 inches long, 2-1/2 inches wide and 0.204 inch thick. It has a 15/16-inch center hole.
How many Rotary 11224 blades does a 60-inch deck require?
Many compatible 60-inch mower decks use three blades. Confirm the blade quantity in the equipment parts diagram because deck configurations can vary.
Is the Rotary 11224 an OEM Exmark blade?
No. The Rotary 11224 is an aftermarket replacement blade manufactured by Rotary for compatible equipment applications. It replaces specified Exmark, Encore and Windsor part numbers.
Is the Rotary 11224 a mulching blade?
No. The Rotary 11224 is a notched high-lift blade designed primarily to create strong airflow for side discharge or bagging. It should not be described as a dedicated mulching blade.
What is the benefit of a high-lift mower blade?
A high-lift blade produces increased airflow that helps lift grass before cutting and moves clippings efficiently through the mower deck. This can improve side-discharge and bagging performance.
Can I order this blade based only on my 60-inch deck size?
No. Deck size alone is not enough to confirm fitment. Match the original blade number, mower model, serial-number range, blade dimensions and center-hole size.
Does this listing include one blade or a complete set?
This listing includes one replacement blade. A compatible three-blade deck may require three blades for a complete replacement set.