A sharp, well-mched blade instantly makes a Craftsman M110 cut cleaner, faster, and more evenly. For 2026, I’ve narrowed things down to five standout 21″ replacements that actually fit and perform on this deck. These picks focus on heat-treated steel, balanced factory edges, and solid airflow for finer mulch and less bagging.
Keep reading to see which blade style suits your lawn, how each one behaves in real-world mowing, and what details to check before you swap yours out.
| 21″ Mulching Blades for Craftsman Poulan Husqvarna (2-Pack) |
| Best Fitment | Blade Length: 21 in | Compatibility / Fits Craftsman Mowers: Fits Craftsman 21″ deck push & self-propelled mowers | Blade Type / Function: Mulching blade | VIEW LATEST PRICE | Read Our Analysis |
| 21″ Mulching Blades for Cub Cadet & Craftsman |
| Wide Compatibility | Blade Length: 21 in | Compatibility / Fits Craftsman Mowers: Fits Craftsman 21″ models (listed M100–M320 series) | Blade Type / Function: Mulching blade | VIEW LATEST PRICE | Read Our Analysis |
| 21″ Mulching Lawn Mower Blades (2-Pack) |
| Ready Replacement | Blade Length: 21 in | Compatibility / Fits Craftsman Mowers: Fits Craftsman 21″ models (M100–M320 listed) | Blade Type / Function: Mulching blade | VIEW LATEST PRICE | Read Our Analysis |
| Terre 21″ Mulching Lawn Mower Blade (Bow-Tie) |
| Premium Performance | Blade Length: 21 in | Compatibility / Fits Craftsman Mowers: Fits Craftsman 21″ walk-behind decks (M100–M230, R110 listed) | Blade Type / Function: Mulching (3-in-1: mulch, bag, side discharge) | VIEW LATEST PRICE | Read Our Analysis |
| for Lawn Mower Blade Qty 9 for Craftsman Fits Replaces CMXGZAM110143 |
| Bulk Supply | Blade Length: (Not explicitly stated per blade; marketed as replacement for M110/CMXGZAM110143 — implied 21 in fit for M110) | Compatibility / Fits Craftsman Mowers: Replacement for Craftsman (CMXGZAM110143) — intended for Craftsman mowers (M110) | Blade Type / Function: Lawn mower blade (replacement for mowing; implied mulching/cutting use) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
21″ Mulching Blades for Craftsman Poulan Husqvarna (2-Pack)
Should you want a reliable, easy swap that turns your 21 inch Craftsman, Poulan, or Husqvarna push or self-propelled mower into a better mulcher, these 21 inch mulching blades in a 2-pack are a strong choice. You’ll get two 21 by 2-1/4 inch blades with 5/32 inch thickness and 1-1/8 inch air lift that match common replacement numbers like 165833 and 532165833. They fit 21 inch decks and use a round center hole. You won’t need to remove the protective paint prior to use since it guards your hands and prevents rust until it wears off. Just confirm model and size.
- Blade Length:21 in
- Compatibility / Fits Craftsman Mowers:Fits Craftsman 21″ deck push & self-propelled mowers
- Blade Type / Function:Mulching blade
- Center Hole Pattern / Mounting:Round / circular center hole
- Material / Construction Strength:Steel blade (thickness 5/32 in) — implied heat-treated/durable
- Intended Deck Size / Use:For 21 in deck
- Additional Feature:Protective paint coating
- Additional Feature:Round center hole
- Additional Feature:Air lift 1-1/8″
21″ Mulching Blades for Cub Cadet & Craftsman
In case you own a 21-inch Cub Cadet or Craftsman push mower and you want cleaner clippings and smoother mulching, these mulching blades are a great fit for you. You’ll get 21 inch black blades that match many replacement numbers like 742-0741, 942-0741, 742-04276 and CC-742-0741. They fit walk behind, push, and self propelled decks from 1995 to present. They work across Cub Cadet, Craftsman, MTD, Troy Bilt and more, including specific Cub Cadet CC and SC models and Craftsman M series mowers. You’ll notice finer mulch, less bagging, and easier installation.
- Blade Length:21 in
- Compatibility / Fits Craftsman Mowers:Fits Craftsman 21″ models (listed M100–M320 series)
- Blade Type / Function:Mulching blade
- Center Hole Pattern / Mounting:(Not explicitly stated) — fits 21″ decks using common 742/942 series mounting (standard 21″ pattern)
- Material / Construction Strength:Steel (standard high-strength mower blade construction)
- Intended Deck Size / Use:For 21 in cutting decks (walk-behind, push, self-propelled)
- Additional Feature:Wide brand coverage
- Additional Feature:Fits models since 1995
- Additional Feature:Black finish
21″ Mulching Lawn Mower Blades (2-Pack)
In case you want a reliable way to turn grass clippings into fine mulch that feeds your lawn, these 21 inch Craftsman mulching blades are a great choice for owners of M110 and similar models. You’ll get a 2-pack of 942-0741A blades made from heat treated steel so they stay strong and sharp. Each blade is 21 inches long, 2-1/4 inches wide, 0.126 inches thick, with a bow-tie center hole for easy fitment. They replace several part numbers and fit many Craftsman, Cub Cadet, Troy-Bilt and White Outdoor models. You’ll notice cleaner cuts and healthier grass.
- Blade Length:21 in
- Compatibility / Fits Craftsman Mowers:Fits Craftsman 21″ models (M100–M320 listed)
- Blade Type / Function:Mulching blade
- Center Hole Pattern / Mounting:Bow-tie center hole
- Material / Construction Strength:High-quality steel, heat-treated
- Intended Deck Size / Use:For 21 in deck
- Additional Feature:Bow-tie center hole
- Additional Feature:Heat-treated steel
- Additional Feature:Package includes two
Terre 21″ Mulching Lawn Mower Blade (Bow-Tie)
In case you want a reliable replacement that mulches, bags, or side discharges with ease, the Terre 21 inch mulching blade is a great pick for owners of Craftsman M110 and similar mowers. You’ll like its 21 inch length and bow tie center that fits many walk behind decks like Troy Bilt, Cub Cadet, and Craftsman models. It’s forged from heat treated steel with an anti rust powder coat, so it resists corrosion and stays strong. The high lift design re cuts clippings finely for better mulching and bagging. Factory sharpened and balance tested, it performs right out of the box.
- Blade Length:21 in
- Compatibility / Fits Craftsman Mowers:Fits Craftsman 21″ walk-behind decks (M100–M230, R110 listed)
- Blade Type / Function:Mulching (3-in-1: mulch, bag, side discharge)
- Center Hole Pattern / Mounting:Bow-tie center hole
- Material / Construction Strength:Heat-treated high-strength steel, forged
- Intended Deck Size / Use:For 21 in walk-behind mower decks
- Additional Feature:3-in-1 capability
- Additional Feature:Anti-rust powder coat
- Additional Feature:Factory performance tested
for Lawn Mower Blade Qty 9 for Craftsman Fits Replaces CMXGZAM110143
You’ll appreciate this set of nine Craftsman-compatible mower blades whenever you need a reliable, ready-to-go replacement that keeps your M110-equipped mower cutting cleanly and consistently. You’ll get nine blades sold as a set, each made to match Craftsman CMXGZAM110143. You can expect precise cutting and steady performance, which makes lawn work less stressful. Check fit by comparing the blade photo and dimensions to your mower prior to your install them. The blades are built for durability, so you won’t worry about frequent swaps. Should you want dependable, easy maintenance, this set gives practical value and peace of mind.
- Blade Length:(Not explicitly stated per blade; marketed as replacement for M110/CMXGZAM110143 — implied 21 in fit for M110)
- Compatibility / Fits Craftsman Mowers:Replacement for Craftsman (CMXGZAM110143) — intended for Craftsman mowers (M110)
- Blade Type / Function:Lawn mower blade (replacement for mowing; implied mulching/cutting use)
- Center Hole Pattern / Mounting:(Not specified) — sold as direct replacement for CMXGZAM110143 (matching mower’s mounting pattern)
- Material / Construction Strength:Durable mower blade (built for lasting durability)
- Intended Deck Size / Use:Intended as replacement for mower model (fits the M110 21″ mower)
- Additional Feature:Sold as nine-pack
- Additional Feature:Direct CMXGZAM110143 replacement
- Additional Feature:Photo-fit verification recommended
Factors to Consider When Choosing Craftsman M110 Lawn Mower Blade Replacements
I want to help you pick the right replacement blade for your Craftsman M110 walking through the key things that matter. We’ll check compatibility, materials, center hole type, and the right size and thickness while also comparing mulching verses standard blades so you know which fits your mowing habits. I’ll keep this simple and practical so you feel confident making the best choice for your mower and lawn.
Blade Compatibility Check
Although it could seem small, I know choosing the right blade for a Craftsman M110 can make or break your mowing day, so I walk you through the key compatibility checks step step. First I measure blade length and width against my deck specs. Many 21 inch decks use a 21 inch length and about 2 1/4 inch width. Next I inspect the center mounting hole pattern and diameter so the blade fits the spindle snugly. I also check thickness, typically around 0.12 to 0.126 inch, to avoid clearance problems with hardware and deck. Then I match lift type to the mower task and deck airflow. Finally I cross reference model numbers or the stamped blade part to confirm fit before buying.
Blade Material Quality
Whenever you want a blade that stays sharp and doesn’t bend after a few uses, choosing the right material and finish matters. I prefer heat treated high carbon or alloy steel because the process makes the edge harder and more wear resistant, so you sharpen less often. I look for blades about 0.12 to 0.16 inches thick for sturdiness without excess vibration. Forged blades from one piece of steel feel tougher and resist cracking more than stamped or welded ones. A corrosion resistant coating like powder coat or e coat helps prevent rust during storage and extends life. Finally, consistent tolerances plus grinding, balancing, and tempering show quality. These steps reduce wobble, improve the cut, and give you confidence mowing.
Center Hole Type
Fit matters more than you could envision, so start off checking the center hole type on your M110 before you buy a replacement blade. I always confirm the pattern on the blade hub because fitment depends on matching that exact shape. To begin, look for a round or bow-tie pattern. Then measure the center hole diameter or slot spacing precisely. Round holes use a diameter like about 5/8 inch. Bow-tie patterns need the same cut profile and spacing. Should you fit the wrong type, the blade can sit poorly, vibrate, wear the spindle fast, or even slip off. I compare the old blade to listings, check product notes that say bow-tie or round, and bring the blade to a parts counter when I’m unsure.
Blade Size And Thickness
Start next to matching the blade length and thickness to your M110’s deck because that choice affects how well the mower cuts and how long the blade lasts. I always check the deck spec initially, often 21 inches on walk behind models, so the blade clears the deck and gives proper cutting width. Then I confirm thickness, typically about 0.126 in to 5/32 in, since thicker steel resists bending and lasts longer but must fit spindle and deck clearance. I also verify blade width and lift height, which keep the mower’s airflow for bagging or side discharge working right. Don’t forget center hole pattern and diameter for safe mounting. I prefer heat treated steel with specified hardness for better edge life.
Mulching Versus Standard
Now that you’ve matched blade length and thickness to your M110’s deck, you’ll want to decide whether a mulching or a standard blade fits your mowing habits and lawn needs. I’ll walk you through the tradeoffs so you can pick with confidence. Mulching blades have a curved, higher lift profile and extra cutting surfaces that shave clippings repeatedly into fine pieces. Those finer pieces decompose faster and return nutrients, so you bag less and have less yard waste. Mulching can require more engine power and slightly more fuel, and works best with a sharp blade and adequate deck space. Should you mow tall or wet grass, mulching might clog; a standard flat blade or a convertible 3-in-1 gives more reliable versatility.
Lift And Airflow Design
Grasping how lift and airflow shape your mower’s performance can save you time and give you a cleaner cut. I want you to envision blade lift as how strongly the blade pulls grass upright. Higher lift blades near 1-1/8 inch give strong upward airflow, so grass stands tall and bagging works better. Mulching or high lift styles also swirl clippings with vertical and lateral airflow, breaking them into finer pieces that feed the soil. But I also warn you: too much lift can tax the engine and use more fuel, so match lift to your deck and engine. Blade wing shape, curvature, and pitch control suction, discharge range, and clipping suspension. Keep blades balanced and sharp; uneven blades wreck airflow, cause clumps, and shake your mower.
Installation And Safety
Before you lift the deck or yank a blade, I want you to feel confident and safe, so I always disconnect the spark plug wire or remove the ignition key initially to stop any accidental starts. Then I put on gloves and eye protection because those blades can cut and coatings can rub off onto skin. I work on a flat surface and block the wheels to keep oil and fuel where they belong, instead of tilting the mower. While installing, I match the blade orientation to the stamped arrows and keep the blade balanced. I torque the bolt to the manufacturer value and double check tightness. Finally I run a short low speed test mow, watching for vibration or odd noise, and only then go back to full speed.