Does your lawn mower sound like it’s choking every time you try to cut that thick, lush grass? You push harder, the engine roars, but the blades just seem to bounce over the dense clumps instead of slicing cleanly through them. It’s frustrating, right? You invested in a good mower, but if the blades aren’t up to the challenge, your yard work turns into a tough battle instead of a satisfying chore.
Choosing the correct blade for thick grass is more than just picking the sharpest one. The wrong blade can rip and tear your lawn, leaving behind a ragged, unhealthy mess. Finding the right balance between lift, cutting power, and durability is key, and the sheer number of blade types—high-lift, mulching, standard—can make your head spin when dealing with heavy growth.
Don’t let tough turf win this season! This guide cuts through the confusion. We will show you exactly what features to look for in a lawn mower blade designed to handle dense, overgrown areas without bogging down your machine. Prepare to learn the secrets to achieving that perfect, clean cut, even in the wildest parts of your yard. Let’s dive in and get your lawn looking professional!
Top Lawn Mower Blades For Thick Grass Recommendations
- Includes (1) 16 in. universal power rake/dethatcher blade
- Measures: 16 in. L and 2-1/4 in. W
- 1 in. center hole diameter
- Includes a cover washer and 6 reducing washers in the following sizes: 3/8 in., 7/16 in., 9/16 in., 1/2 in., 5/8 in., and 3/16 in.
- Manufactured to meet or exceed all OEM specifications
- 【Lawn Mower Blade】: This mower blade compatible with Greenworks 21inch Mower MO40L4413, MO40L03, MO48L4422.
- 【Superior Cutting Efficiency】: Engineered for a clean, even cut, ensuring a lush, green lawn with every mow.
- 【Durable Construction】: Made from high-carbon steel, this blade offers exceptional strength and longevity, resisting wear and tear even under tough mowing conditions.
- 【Easy Installation】: With a user-friendly design, this blade can be easily installed in minutes, getting you back to mowing without hassle.
- 【Corrosion Resistance】: Coated for protection against rust and corrosion, it delivers reliable performance season after season.
- Stop the guesswork! Craftsman 21" Deck Push Walk Behind Lawn Mower uses two different blade mounting pattern.Before ordering our blades,identify your original blade's mounting pattern.Our blade's mounting pattern is Circle Hole.If your blade's mounting pattern is Bow Tie Center Hole,Use MPN 942-0741A to order your correct blades elsewhere
- Stop the guesswork! Husqvarna 21" Deck Push Walk Behind Lawn Mower uses two different blade mounting pattern.Before ordering our blades,identify your original blade's mounting pattern.Our blade's mounting pattern is Circle Hole.If your blade's mounting pattern is 5-Star Center Hole,Use MPN 580258102 to order your correct blades elsewhere
- Mower Mulching Blade Replace number 165833, 175064, 189028, 406712, 532175064,532165833, 532189028, 532406712
- Commercial Mulching Blade Specification:blade length 21"(534mm),width 2-1/4"(57mm),thickness 5/32"(4mm),air lift 1-1/8"(28mm),center hole shape circle
- Mower blade type:mulching blade,Compatible deck size:21"
- 【Replace Part Number】The mower blades are compatible with AYP 165833, 165833B, 175064, 159267, 176135, 189028, 406706, 406712, 531300765, 532175064; Compatible with Hu sqvarna 501807402, 531307235, 532145064, 532165833; Compatible with Pou lan 406712X431, 531307213, 531307235, 532406712, etc. Please refer to the description for more compatible models. Verify the original part number and ensure that this part fits your model before purchasing.
- 【Compatible With】The lawn mowers blades are compatible with AYP/Craftsman/Hus qvarna/Pou lan 21" Cut Decks:①Compatible with AYP PH65Y21RHP, PO500N21R, PO500N21RH, PO500N21RHX, PO500N21RH3, PR160N21CHC;②Compatible with Craftsman 917375940, 917375950, 917378494; ③Compatible with Hu sqvarna 5521CM, 5521RSX, 65021CHV, 65021ES, 67521ES, etc. For more models, please check the description.
- 【Simple Installation】Install the mulching blades with round center holes by placing the curved side towards the deck, ensuring optimal flow of the cuttings.
- 【Premium Quality Materials】Crafted from long-lasting carbon steel and enhanced with an additional coating, our mulching mower blades are specifically designed for tackling tall grass and dense vegetation in your yard. The razor-sharp blade ensures a seamless and uniform cutting experience. Upgrade your old, stuck blades with our mower blades today and enjoy a completely revitalized lawn mowing experience!
- 【Blade Dimensions】2×331737B Replacement blade. Length 21-1/4" , Width 2-1/5" , Thickness 0.157", Center Hole: 5/8", Outer Hole 3/8". The mower blade comes with round center holes, please verify the spindle of your mower before your order.
- Includes (1) 21 in. universal gold metal commercial mulching blade
- Measures 21 in. L x 2-1/4 in. W with a 1 in. center hole diameter
- Includes a cover washer and 6 reducing washers in the following sizes: 3/8 in., 7/16 in., 9/16 in., 1/2 in., 5/8 in., and 3/16 in
- Fits MOST 21" cut mowers
- Recommended for gas powered mowers - not battery powered or electric mowers
- 7-blade reel mower for specific lawns. 7-blade reel mowers are best suited for grass types similar to Bermuda, tiff, bent grass and zoysia
- The 7-blade reel push mower is designed for the active lawn enthusiast enjoys maintaining their short thick grass types
- 7-blade reel with a cutting width of 16" and a newly designed durable 10" wheel for maximum maneuverability
- Mechanical lawn mower with an adjustable cutting height of 0.5"- 2.5"
- Manual grass cutter blades made of heat-treated alloy steel that stays sharp for years. T-style handle with a comfortable cushioned grip for better comfort
- COMPATIBILITY: For MOST (but not all) Troy-Bilt, Bolens, AYP, Craftsman, Honda, Huskee, Husqvarna, Lawn-Boy, Murray, Poulan, Snapper, Toro, Yard Machines, Yard-Man 21 in., 22 in. and 23 in. walk-behind mowers.
- INCLUDED: Contents include one blade with sizers to fit 3/8 in., 7/16 in. and 5/8 in. universal center hole patterns and dethatching line.
- EFFECTIVE CUT: Sharp-edged blades cut grass cleanly and make their way through grass more efficiently, reducing overall mowing time and effort.
- MULTIFUNCTIONAL: Blade dethatches, rakes, mulches, scalps, bags and cuts lawns with simple adjustments to the nylon lines.
- IMPORTANT: For detailed installation instructions, please refer to your instruction manual.
- Length: 21-1/4” | Width: 2-3/4” | Thickness: .157” | 7 Point Star Center Hole | 42 Inch Deck | Heavy Duty High Lift Blades
- Replacement part for: John Deere AM137327, AM141032, AM141034, M154061, M154062
- AM137327 Compatible with John Deere Lawn Tractors: LT180, FH500V, SST15, SST16, CV15S, X300, X304
- AM141032 Compatible with John Deere Lawn Tractors: LT160, CV460S, SST15 CV15S , X300, X304, X310, FS600V, 31P707, Z225, Z235 EZtrak Mower
- AM141034 Compatible with John Deere Lawn Tractors: 102, 105, 115, 125, 135 | D100, D105, D110, D120, D125, D130 | E100, E110, E120, E130 | L108, L111, LA100, LA105, LA110, LA115, LA120, LA125, LA135 | LT160, LT180 | S100, S110, S120, S130, S240 | SST15, SST16 | X105, X106, X107, X110, X120, X125, X126, X145, X300, X304, X310, Z225, Z235
Choosing the Best Lawn Mower Blades for Thick Grass
Cutting thick, overgrown grass is tough work. Your standard lawn mower blade might struggle. You need a heavy-duty blade designed for this challenge. This guide helps you pick the right blade to make cutting thick turf easy and clean.
Key Features to Look For
When buying blades for thick grass, focus on strength and cutting ability.
- **Blade Type:** Look for **High-Lift** or **Mulching** blades. High-lift blades create a strong vacuum, pulling tall grass up before cutting it. Mulching blades chop the clippings into tiny pieces, which is great for thick growth that you don’t want to bag.
- **Blade Thickness:** Thicker blades resist bending and breaking when hitting hidden sticks or very dense patches. A good blade should be at least 1/8 inch thick or more.
- **Cutting Edge Angle:** A sharper, more aggressive angle cuts through thick stems faster.
- **Compatibility:** Always check the length and the center hole shape (star, round, etc.) to ensure the blade fits your specific mower model perfectly.
Important Materials for Durability
The material of the blade determines how long it lasts and how sharp it stays.
Most good blades use **High-Carbon Steel**. This steel is hard and holds a sharp edge well, even when cutting tough weeds or damp, thick grass.
Some premium blades feature a **Hardened Edge**. This means the cutting tip is treated to be extra tough. These blades cut better for longer. Avoid cheap, thin stamped steel blades; they dull quickly when faced with heavy work.
Factors That Improve or Reduce Blade Quality
Quality matters when you are putting your mower through tough jobs.
What Makes a Blade Better?
- **Heat Treatment:** Quality manufacturers properly heat-treat the steel. This process makes the metal strong but not brittle. A well-treated blade stays sharp longer.
- **Balance:** Blades must be perfectly balanced. An unbalanced blade causes strong vibrations, which harms your mower engine and makes mowing very uncomfortable. Good blades are factory balanced.
- **Coating:** Some blades have protective coatings (like paint or specialized finishes). These coatings help prevent rust, keeping the blade in good shape between seasons.
What Lowers Blade Quality?
- **Thin Steel:** Thin steel bends easily when it hits tough spots, which leads to uneven cuts.
- **Poor Sharpening:** Blades that come with a dull or poorly ground edge will tear the grass instead of cutting it cleanly. Tearing thick grass leads to brown tips on your lawn.
User Experience and Use Cases
How you use your mower dictates the best blade choice.
If you let your lawn grow very long between cuts (maybe once every two or three weeks), you need a powerful **High-Lift Blade**. This blade creates the necessary airflow to lift the floppy, thick grass up so the cutting edge can grab it.
If you have a very large yard with thick, damp grass, you will appreciate a durable **Mulching Blade**. While it cuts slower than a simple high-lift blade, it breaks down the heavy volume of clippings so they disappear back into the soil instead of clumping up and smothering your lawn.
Remember: Always replace blades in sets of two or three (depending on your deck size) to maintain balance. Never mow thick grass in one quick pass; make slower passes and raise your cutting height first. This reduces strain on your mower and the blade.
10 FAQs About Lawn Mower Blades for Thick Grass
Q: How often should I sharpen blades used for thick grass?
A: Because thick grass wears down edges faster, you should check your blades every 10 to 25 hours of mowing time, or at least twice per cutting season.
Q: Can I use a regular blade on thick grass?
A: You can, but it will strain your engine, cut poorly, and the blade will dull very fast. A specialized blade handles the stress better.
Q: What does “High-Lift” mean?
A: High-Lift means the ends of the blade curve upward sharply. This curve acts like a fan, sucking the grass up toward the sharp edge for a cleaner cut.
Q: Should I buy OEM (Original Equipment Manufacturer) blades or aftermarket blades?
A: OEM blades are guaranteed to fit perfectly. Good aftermarket blades often use stronger steel than the standard blades that came with your mower, offering better value for thick grass.
Q: Will a thick blade make my mower slower?
A: A slightly thicker blade might use a tiny bit more power, but the better cut quality usually makes the overall job feel faster because you don’t have to go over the same spot twice.
Q: What is the best blade material for wet, thick grass?
A: High-carbon steel is best. Wet grass is heavy and dulls edges quickly. You need hard steel that resists that dulling action.
Q: How do I know if my blade is unbalanced?
A: If you feel strong shaking in the mower handle or hear loud rattling noises after installing a new blade, the blade is probably unbalanced.
Q: Can I just sharpen my old blade instead of buying a new one?
A: Yes, you can sharpen it. However, if the blade is thin, bent, or has deep nicks, replacing it is safer and will give you a much better cut in thick conditions.
Q: Are mulching blades good for very tall grass?
A: They are good at *processing* the clippings. But for grass that is extremely tall (over 6 inches), you might need to raise the deck first and then use the mulching blade on a second pass.
Q: Does blade thickness affect how low I can set my mower deck?
A: Yes. If the blade is too thick, it might hit the inside of the deck housing when spinning, especially on the lowest setting. Always check your clearance!