A dull or damaged blade on your Craftsman M110 lawn mower can lead to several problems, including promoting grass disease, forcing the engine to work harder, and resulting in an uneven cut.
When grass is torn rather than cleanly cut, the lawn weakens and struggles to thrive, undermining your efforts to maintain a lush, healthy yard. Installing a sharp blade is essential for achieving a professional-looking, clean finish every time you mow.
Our top picks feature blades engineered from durable, heat-treated steel for a precise Craftsman M110 fit and consistent cutting performance.
We prioritized 21-inch blades with the correct center hole design—either round or bow-tie—to guarantee compatibility across models like the M110, M210, M230, and M250.
1. Mulching Blade for Craftsman M110 2-Pack – Best Overall
Unlock a truly flawless lawn with this powerhouse blade set, engineered for a superior mulching experience using its specialized blade shape and robust, heavy-duty steel construction.
This two-pack is designed to transform grass into fine, nutrient-rich clippings, delivering optimal performance and durability right out of the box for owners of the Craftsman M110.
The unique curvature of the blade set generates powerful air lift, ensuring grass is pulled up and cut multiple times before being discharged as super-fine mulch that vanishes into the turf.
This design performs admirably even in slightly damp grass by resisting the clumping that plagues lesser blades.
The heavy-duty steel maintains its sharp edge longer than standard replacements, justifying the investment for those serious about lawn health. This set provides significantly more long-term value compared to a single OEM CRAFTSMAN blade.
Key Features:
- Heavy-duty steel construction.
- Cuts grass into fine clippings for super-fine mulch.
- Direct replacement 21-inch blades.
- Compatible with M110, M250, M215, M230, M320, M210, 145B.
Pros:
- Precise M110 Fit.
- Heavy-Duty Steel.
- Enhanced Mulching.
- Two Blades Included.
Cons:
- Mulching Only.
- Heavier Build.
2. Grasscool 21 inch Mulching Blade – Best Budget Friendly
Revitalize your mower without emptying your wallet with this exceptionally versatile replacement blade. The Grasscool blade’s primary strength is its incredible compatibility, fitting a massive range of Craftsman, Husqvarna, and Poulan 21-inch deck models.
It serves as the ultimate problem-solver for anyone struggling to find a functional, low-cost blade for a push mower, delivering a dependable cut that gets the job done. This blade provides a solid, no-frills performance for routine lawn maintenance.
Its standard specifications—a 21-inch length and 5/32-inch thickness—ensure it functions as a reliable workhorse on moderately dense, dry lawns.
However, prospective buyers must confirm their mower uses a round center hole for proper fitment. This is a purely economical choice that sacrifices specialized mulching architecture for superior affordability, providing the lowest barrier to entry for a quick and effective Craftsman M110 blade replacement.
Key Features:
- 21″ (534mm) blade length.
- 5/32″ (4mm) thickness.
- Features a Circle (Round) center hole.
- Works as a reliable workhorse for routine maintenance.
- Highly compatible with a wide range of models.
Pros:
- Highly Affordable.
- Wide Compatibility.
- Standard Fit.
- Dependable Cut.
Cons:
- Single Blade.
- Basic Steel.
- Not for Wet Grass.
3. 21 inch Mulching Blades 3 Pcs – Best Value Multi-Pack
Prepare for seasons of pristine cuts with this exceptional value three-pack of mulching blades. The standout feature of this set is the unique aerodynamic design, engineered with aggressive curves to create a powerful airflow that recuts grass into finer pieces.
This design not only enhances mulching performance but also claims to improve bagging capacity by up to 50%, directly addressing the frustration of frequently emptying the bag on thick lawns.
The heat-treated steel, while slightly thinner at 9/64″ (3.4mm), holds its edge well for typical residential use. This 3-pack is tailored for the user who prioritizes long-term supply and mowing efficiency.
Critically, the blades utilize a bow-tie center hole, which ensures a perfect, secure fit for compatible MTD-built mowers like the Craftsman M110, though it is completely incompatible with round-spindle models.
Key Features:
- Comes as a 3-piece multi-pack.
- Features a Bow Tie center hole shape.
- Unique aerodynamic design with aggressive curves.
- Claims to improve bagging capacity by up to 50%.
- Compatible with Craftsman M110, M250, M230, and various Troy-Bilt models.
Pros:
- Excellent Value.
- 3-Pack Supply.
- Aerodynamic Design.
- Improved Bagging.
Cons:
- Thinner Steel.
- Bow-Tie Only.
4. budrash 942-0741A Mulching Blade 2 Pack – Best Fit for M110 Series
Unleash the full potential of your mower with this true 3-in-1 workhorse designed for ultimate versatility.
The budrash 942-0741A blade excels with its bagging, discharging, and mulching functions, made possible by a contoured shape that expertly swirls clippings inside the deck.
This two-pack provides the ideal solution for users who demand flexibility, allowing them to easily switch between lawn care strategies without needing to change blades. The secure fit and balanced operation define this blade’s performance.
The bow-tie center hole ensures a vibration-free connection to compatible Craftsman 247 series and M110 mowers.
At a standard 1/8″ thickness, it delivers a consistently clean cut for most residential yards, whether mulching leaves in the fall or bagging grass in the spring.
This 2-pack offers superior value compared to a single CRAFTSMAN OEM blade by including a spare for future use.
Key Features:
- True 3-in-1 application (bagging, discharging, and mulching).
- Includes two 21″ mower blades.
- Secure Bow-tie center hole.
- Standard 1/8″ thickness.
- Replacement Part Number 942-0741A is listed.
Pros:
- True 3-in-1 Design.
- Secure Bow-Tie Fit.
- Two Blades Included.
- Sharpened Ready.
Cons:
- Standard Thickness.
- Specific Compatibility.
5. wyevee 331737B Mulching Lawn Mower Blade – Best Lightweight Replacement
Achieve a seamless mowing experience with this precision-engineered replacement blade, known for its extensive compatibility list that serves a wide range of older AYP, Craftsman, and Husqvarna models.
The wyevee blade’s strength lies in its durable carbon steel construction and protective coating, ensuring it is ready for action right out of the box.
This product expertly solves the challenge of finding a high-quality, single-blade replacement for 21-inch mowers that utilize a round spindle design. In the field, the blade delivers a crisp, uniform cut.
Its key dimensions—a 21-1/4″ length and a 5/8″ round center hole—are crucial for users to verify for a perfect fit on specific mower spindles.
The lightweight-yet-strong carbon steel design may also help reduce strain on older mower engines, promoting smoother operation compared to heavier alternatives.
Key Features:
- Constructed from Carbon Steel with Coating.
- Features a 5/8″ Round center hole size.
- Slightly longer length at 21-1/4″.
- Extremely broad compatibility across 21″ AYP/Craftsman/Husqvarna/Poulan cut mowers.
- Lightweight design for smoother engine operation.
Pros:
- Carbon Steel.
- Lightweight Design.
- Broad Compatibility.
- Sharp Out-of-Box.
Cons:
- Single Pack.
- Round Hole Only.
- Niche Fitment.
6. CRAFTSMAN 21-Inch Lawn Mower Replacement Blade – Best OEM Brand Match
Restore your mower to its original, factory-fresh performance with the blade it was born to use. As an Official Equipment Manufacturer (OEM) part, the CRAFTSMAN blade’s greatest asset is the absolute guarantee of a perfect fit and finish.
Choosing OEM completely eliminates the compatibility guesswork and installation anxiety that can accompany aftermarket parts, providing ultimate peace of mind for any CRAFTSMAN mower owner.
The performance of this blade sets the benchmark, as it is engineered to deliver the perfectly balanced and reliable cut that CRAFTSMAN intended for its 21-inch mowers.
It seamlessly handles mulching, bagging, and discharging tasks, working in perfect harmony with the mower deck’s aerodynamics for optimal results.
While you receive a single blade, you gain unmatched brand assurance and guaranteed quality over quantity. This is the definitive choice for the CRAFTSMAN loyalist who prioritizes a flawless, factory-spec replacement.
Key Features:
- Official Equipment Manufacturer (OEM) part.
- Guarantees a perfect fit and finish.
- Engineered for a perfectly balanced and reliable cut.
- Handles all mowing projects and tasks.
- 21-Inch standard size.
Pros:
- OEM Guarantee.
- Perfect Fit.
- Factory Performance.
- Brand Assurance.
Cons:
- Single Blade.
- Higher Cost-Per-Blade.
How to Choose the Right Replacement Blade for Your Craftsman M110 Lawn Mower
Replacing the blade on your Craftsman M110 is crucial for maintaining a healthy, clean cut. With many options available, picking the right blade requires careful consideration of compatibility, durability, blade type, and value.
1. Check Compatibility First
You must ensure the replacement blade matches your mower model, specifically the Craftsman M110. Look for blades listed as compatible with M110, M210, M230, or M250 models. Most importantly, you must verify two key features:
- Replacement Part Number: Confirm the blade aligns with verified part numbers like 942-0741A or 165833.
- Center Hole Shape: Critically confirm the center hole shape—either round or bow-tie—matches your mower’s spindle, as a mismatched pattern will not fit, regardless of the blade length.
2. Choose the Right Blade Type
The Craftsman M110 generally works best with mulching blades. Mulching blades finely chop grass clippings, returning nutrients to the lawn quickly.
Some blades offer 3-in-1 functionality (mulching, bagging, and discharging), which provides greater versatility for different yard tasks.
If you require cleaner side discharge or bagging, you might consider high-lift blades, but mulching blades typically offer the best all-around performance for most users.
3. Prioritize Durability and Build Quality
Look for blades made from heavy-duty or heat-treated steel, as these materials resist bending when hitting debris and stay sharper longer.
Research revealed a strong correlation between heat-treated steel and longevity. Thicker blades, typically 9/64″ or 1/8″, tend to be more durable than thinner ones, particularly under heavy or frequent use. A protective coating can also help prevent rust and make installation safer.
4. Ensure Proper Fit and Dimensions
Most M110 blades are 21 inches long with a width of 2-1/4 inches. The center hole is generally a 5/8 inch round or the necessary bow-tie shape, depending on the mower model.
Always measure your old blade or consult your owner’s manual, as even a quarter-inch difference can affect performance or safety.
5. Consider Value and Quantity
If you mow frequently, a multi-pack (two or three blades) offers superior long-term value and reduces the need for repeat purchases.
However, a single budget-friendly or OEM blade can be sufficient if you only need a quick replacement. Always double-check your mower’s specifications before finalizing your purchase for optimal results.