Comparison: Best Mulching Mower For Thick Grass (Updated | Oct 14th)
Choosing the right mulching mower for thick grass is essential for maintaining a healthy, vibrant lawn. A high-quality mulching mower efficiently cuts and recycles grass clippings back into the soil, promoting nutrient-rich turf without clumping or scalping. This guide compares top models based on performance, durability, ease of use, and suitability for dense grass types. Whether you prioritize power, maneuverability, or eco-friendly features, our analysis helps you find a reliable mower tailored to your lawn’s needs. Explore balanced insights to make an informed decision for a lush, low-maintenance yard.
Editor’s Choice
Best for a specific purpose
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Best for best electric:
Greenworks 60V 17" Brushless Cordless Push Lawn Mower -
Best for durable blades:
MTD Genuine Parts (490-100-M067 Mulching Blades-for 21-Inch Lawn Mowers (1995 and After) Fits Various Troy-Bilt -
Best for best overall:
AMERISUN Self-Propelled Gas Lawn Mower -
Best for premium attachment:
John Deere Original Equipment Grass Mulching Attachment Kit – BUC10705 -
Best for high-lift blades:
Grasscool 942-0616A 42 Inch Mulching Blades for Cub Cadet MTD Troy Bilt Bronco 42" Deck Lawm Mower Replace 742-0616A 742-0616 942-0616 742-04126 6 Point Star (2 Pack) -
Best for 54mulching:
Kojem 54" Lawn Mower Grass Mulching Attachment with Lawn Mower Blades Compatible with John Deere 54C & 54D & 54X Replacement for BM20827 M128485 M144196 TCU15881 -
Best for easy install:
KUAFU Tractor Mulching Cover Compatible with Lawn Mowers w/ 42" & 46'' Decks Cub Cadet RZT-42 Troy-Bilt TB46 Craftsman T2100 Replacement for 631-05195A Mulch kit Mulch Plug Attachment Black Plastic PP -
Best for budget pick:
21" Steel Deck Gas Lawn Mower -
Best for john deere fit:
Original Equipment Grass Mulching Attachment for John Deere Lawn Tractor Models LA100 LA105 LA110 LA115 LA120 LA125 LA135 S100 S110 S120 S130 S1642 S1742 X105 X110 X120 X125 X126 X145 X300 X304 X310 -
Best for mulching plug:
Lawn Mower Parts 987-02516A Hinged Mulching Plug Assembly
Product Comparison: Best Mulching Mower For Thick Grass
Best electric
Greenworks 60V 17" Brushless Cordless Push Lawn Mower, 2-in-1 Mulching/Bagging, 4.0Ah Battery and 3A Charger(40min Runtime)
Greenworks
- Powerful Electric Lawn Mowers – Experience the freedom of cordless mowing with this 60V battery powered lawn mower, delivering up to 40 minutes of runtime on a fully charged 4.0Ah battery. Recharge quickly with a full charge time of just 80 minutes.
- Advanced Brushless Motor – The high-efficiency brushless motor provides superior power and extends the mower’s longevity. It ensures consistent performance, allowing you to tackle even the toughest mowing tasks with ease and reliability.
- Versatile Cutting Options- 6-position height adjustment ranges from 1.5" to 3.15". The 2-in-1 feature enhances versatility, allowing for both mulching and rear bagging, adapting to your lawn care needs in various environments.
- Lightweight and Durable Design- The 17" rust-resistant deck is designed for easy maneuverability and long-lasting use. Its lightweight construction ensures effortless handling, making it perfect for navigating tight spaces and uneven terrain.
- Complete Ecosystem Value- Battery-powered lawn mower includes battery, fast charger, grass bag & 4 year tool + 4 year battery warranty Works with 75+ Greenworks 60V tools(trimmers, blowers, chainsaws…)—expand your cordless toolkit.
Durable blades
MTD Genuine Parts (490-100-M067 Mulching Blades-for 21-Inch Lawn Mowers (1995 and After) Fits Various Troy-Bilt, MTD, Yard Machines, and Other Top Models, Natural
MTD Genuine Parts
- 21 INCH MULCHING BLADES: Engineered to perfectly fit 21-inch lawn mowers manufactured from 1995 on, ensuring precise cutting performance by effectively mulching grass clippings into fine particles
- COMPATIBILITY: Crafted with durability in mind, they are compatible with a wide range of top mower models including Troy-Bilt, MTD, Yard Machines, Huskee and Bolens, and more
- 3-IN-1 BLADE: This versatile blade excels in mulching, bagging, and side discharge functionalities, providing complete flexibility for managing grass clippings according to your lawn care needs
- STAR CENTER HOLE: Designed with a star-shaped center hole ensuring a secure and stable fit on compatible mower shafts, facilitating easier installation and removal when maintaining or replacing blades
- REPLACEMENTS: These lawn mower blades can be used as a direct replacement for: 942-0741, 942-0741A, 742-0741, and 742-0741A; an ideal substitute without compromising fit or function
Best overall
AMERISUN Self-Propelled Gas Lawn Mower, 170cc OHV Engine with High-Velocity Cooling, 21" Steel Deck, 1.4-Bushel Grass Catcher, 6-Position Height Adjustment, 3-in-1 Mulching & Discharge System
AMERISUN
- HIGH-PERFORMANCE 170CC OHV ENGINE WITH FORCED AIR COOLING Tackle thick, uneven grass with ease thanks to the powerful 170cc OHV engine. The forced air-cooling system keeps the engine running efficiently even under heavy load.
- WIDE 21-INCH STEEL DECK FOR FASTER MOWING Built with a durable 21-inch steel deck, this mower covers more ground per pass, reducing mowing time while withstanding rough terrain.
- 3-IN-1 FUNCTION WITH 1.4-BUSHEL GRASS CATCHER Choose between mulching, side discharge, or collecting clippings with the large 1.4-bushel rear bag. Efficient grass disposal made easy.
- 6 CUTTING HEIGHTS & ENHANCED MOBILITY Switch easily between six height levels (1.5""–3.9"") using a single lever. Large 7"" front and 10"" rear wheels ensure stable movement across all types of yards.
- FOLDABLE HANDLE & USER-FRIENDLY DESIGN The ergonomic foldable handle allows compact storage, while simple assembly and intuitive controls make it beginner-friendly and low-maintenance.
Premium attachment
John Deere Original Equipment Grass Mulching Attachment Kit – BUC10705
John Deere
- OEM John Deere Part Number BUC10705 Replaces Prior MPN BM24993
- Compatible with John Deere Tractors, Zero Turns
- Fits John Deere Models: Z535M ZTrak, Z355R ZTrak 48A Deck, Z355E ZTrak 48TD Deck, Z525E ZTrak, Z540M ZTrak, X730 Signature Series, X739 Signature Series, X710 Signature Series
- Also Fits John Deere Models: X750 Signature Series, X949 Signature Series, X940 Signature Series, X754 Signature Series, Z355E ZTrak 48A Deck, X394, X384, S240,
- Please Refer to Original Equipment Owners Manual to verify Compatibility
High-lift blades
Grasscool 942-0616A 42 Inch Mulching Blades for Cub Cadet MTD Troy Bilt Bronco 42" Deck Lawm Mower Replace 742-0616A 742-0616 942-0616 742-04126 6 Point Star (2 Pack)
Grasscool
- Fits For Cub Cadet 42 Inch Mower Blades Models XT1 LT42 XT2 LX42, Replace MPN 742-04126, 742-0616, 742-0616A, 942-04126, 942-0616A, 742-0499, 742-0499A, 942-0499A and 50-3945, 50-3950; Craftsman CMXGZAM110115.
- AVOID MISTAKES: The blade is NOT suitable for 742-05177 S-shape center CubCadet models XT1 XT2 LT42 LX42, and others. This 942-0616A blade is ONLY compatible with a 6-Point Star(5/8") spindle. Please check that your center hole pattern matches before purchasing to avoid installation issues.
- BLADE SPECIFICATION: Length: 21-3/16"(538mm), Width: 2-11/16"(69mm), Thickness: 5/32"(4mm), Center Hole Shape: 6 Point Star(5/8"), For Deck Size: 42", Lift: 1-1/2"(38mm), Mower Blade Type: Mulching Blade.
- 3-IN-1 BLADE: Serves 3 purposes (mulching, bagging, and side discharging) at the same time. Featuring numerous curves that cuts and re-cuts grass to smaller pieces, and recycles them back into the soil as nutrients to promote healthy lawn growth. Additionally, its high-lift increases the bagging capacity by 50%.
- LOWER CLOGGING RISK: Strong airflow and finely shredded grass can reduce clogging around the blade and improve mowing efficiency.
- ENSURE SUPERIOR PERFORMANCE: we conduct a series of rigorous tests, including the Rockwell Hardness Test, V-bend Test, Blade Chip Test, Balance Test, Performance Test, and Field Test.
- NOTICE: The cutting edges are painted to prevent rust and protect your hands during installation. The paint will wear off as you mow the grass.
54mulching
Kojem 54" Lawn Mower Grass Mulching Attachment with Lawn Mower Blades Compatible with John Deere 54C & 54D & 54X Replacement for BM20827 M128485 M144196 TCU15881
Kojem
- FIT – Compatible with John Deere LX280, LX280AWS, LX288, GT235, GT235E, GT245, GX255, GX325, GX335, GX345, GX355, X340, X465, X475, X485, X485SE, X495,X500, X520, X530, X534, X540, X575, X595, X595SE, X700, X720, Z425, Z445 Models. Replacement for BM20827. Please note: Not fit older style 54" decks. Direct replacements for Previous Mulching Kit. Please check whether the model is accurate before placing an order.
- PACKAGE – Including 1 mulching attachment, installation accessories and instructions. Provide convenience for lawn cleaning and trimming.
- DETAIL – Color: Black. Surface Finish: Blades-Electrophoresis. High Quality. Made of High Quality Steel Material. High quality, durable, not easy to damage, provide a good experience. It also enhances the aesthetic appearance of your lawn mower.
- FUNTION – The mulching attachment is designed to convert the mower so it can be used to mulch grass or leaves. Please follow the 1/3 rule.No more than a third of the grass should be cut off at one time. It makes mulching more efficient and promotes the continued health of the grass.
- HIGH QUALITY – Built to strict quality control standards. High quality replacement parts that are designed to meet or exceed the previous component and built with quality parts quality assuring the quality for long lasting usage. Long use time, not easy to damage.
Easy install
KUAFU Tractor Mulching Cover Compatible with Lawn Mowers w/ 42" & 46'' Decks Cub Cadet RZT-42 Troy-Bilt TB46 Craftsman T2100 Replacement for 631-05195A Mulch kit Mulch Plug Attachment Black Plastic PP
KUAFU
- Fitment: The Mulching Cover Compatible with Cub Cadet RZT-42, XT1-LT42 & XT2-LX42 Mowers w/ 42" & 46'' Decks; Compatible with Craftsman T2100; Compatible with Troy-Bilt TB46. Replacement for 19A30046100, 19A30047100, 19A30055100,19A70041, 19B30005, 631-05195A
- High Performance: Made of high quality PP material which is impact-resistant and durable enough, also has high abrasion resistance and toughness, so it can work well in any environment
- Function: Compared to traditional mower,using the Lawn Tractor Mulch Cover eliminates the need to collect cut lawn grass, which reduces the need to dispose of and clean up lawn grass. This increases efficiency and reduces labor output
- Easy Installation: The installation is simple and convenient, directly bolt on. For better adaptation and user experience, you may need to adjust
- Package Include: 1 x Mulching Cover. There is no installation accessories included in the package. Instructions are not included
Budget pick
21" Steel Deck Gas Lawn Mower, 3-in-1 Push Mower, 144cc 4-Stroke OHV Engine, 6 Height Adjustment, 1.4 Bushel Grass Catcher with Bagging, Mulching & Side Discharge Efficient for Yard Garden
AMERISUN
- POWERFUL 144CC 4-STROKE ENGINE- Powered by a 144cc 4-cycle OHV engine, this gas lawn mower starts effortlessly thanks to its auto choke system, while the forced air-cooling mechanism keeps it running efficiently for long-lasting use—an excellent pick for those seeking a dependable lawn mower gas powered option
- HEAVY-DUTY 21" STEEL CUTTING DECK- A clean, even cut is delivered every time by the 21-inch heavy-duty blade and reinforced steel deck, allowing you to finish faster—exactly what you’d expect from a high-performance lawnmower or gas push mower
- EFFORTLESS MANEUVERING WITH LARGE WHEELS- Designed with 7-inch front wheels and 10-inch high rear wheels, plus 1.5" wide treads and double ball bearings, this push mower makes maneuvering simple and effective, even across uneven ground.
- 6 ADJUSTABLE CUTTING HEIGHT- You can switch between six cutting heights—from 1.5 inches to 3.9 inches high—with a single lever, giving this lawn mower gas model the flexibility to meet different yard needs in every season
- 3-IN-1 VERSATILITY- BAG, MULCH, & SIDE DISCHARGE – Easily switch between rear bagging, mulching, and side discharge. The 1.4-bushel grass catcher allows easy grass collection, keeping your lawn clean and tidy
- NO INSTALL& FOLDABLE STORAGE- With no tools required, this fully assembled gas lawn mower just needs its handle unfolded before it’s ready to go—and it folds right back down for easy storage, ideal for those browsing gas lawn mowers clearance or space-saving solutions
John Deere fit
Original Equipment Grass Mulching Attachment for John Deere Lawn Tractor Models LA100 LA105 LA110 LA115 LA120 LA125 LA135 S100 S110 S120 S130 S1642 S1742 X105 X110 X120 X125 X126 X145 X300 X304 X310
Generic
- This original equipment grass mulching attachment enhances your mower’s performance by finely chopping clippings for healthier lawn growth and a cleaner finish. Replace your worn or missing attachment to maintain optimal mulching efficiency and keep your mower working at its best.
- Find your model: USE Ctrl + F to quickly SEARCH for your model number in the product description
- Fits for John Deere Lawn Tractor Models D100 D105 D110 D120 D125 D130 E100 E110 E120 E130 L100 L105 L107 L108 L110 L111 L118 L17.542 L1742 LA100 LA105 LA110 LA115 LA120 LA125 LA135 S100 S110 S120 S130 S1642 S1742 X105 X106 X107 X110 X120 X125 X126 X145 X300 X304 X310 102 105 107 108 115 125 135 1442 1542 1542GS 1542HS 1642HS 1642HV 1742GS 1742HS 1742PR
- After-Sales Guarantee: Your satisfaction is our priority! We provide high-quality replacement grass mulching attachments to enhance your mower’s efficiency and ensure long-lasting lawn care performance. Need help? Contact us anytime!
- Package includes: 1 x Grass Mulching Attachment as shown in the picture.
Mulching plug
Lawn Mower Parts 987-02516A Hinged Mulching Plug Assembly, Compatible with MTD, Cub Cadet & S-napper Mower, for Troy Bilt Push Mower TB110 TB130 TB230, Fits 987-02516 21" Push/Walk Behind Mower
DECKMAN
- Part number：987-02516A 987-02516. 987-02516A Lawn Mower Mulching Plug Assembly Above The Above And Equipped With Fixing Screws
- 987-02516A Replaces: 687-02516, 68702516, 98702516
- Compatible with MTD: 11A-B0BL765, 11A-B0S5700, 11A-B0BL700, 11A-A2S5700, 12A-A0BE700, 11A-A00X700, 12A-A0M5700 & more
- See product description below to determine if this unit fits your model.
- 987-02516A Lawn Mower Mulching Plug Assembly Above The Above And Equipped With Fixing Screws
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
Which mulching mower handles thick grass best?
The Greenworks 60V 17"Brushless Cordless Push Lawn Mower is designed for efficient mulching in dense grass.
Are self-propelled mulching mowers recommended for thick grass?
Yes, the AMERISUN Self-Propelled Gas Lawn Mower is ideal for thick grass due to its high-velocity cutting system.
What mulching attachment works with John Deere tractors?
The John Deere Original Equipment Grass Mulching Attachment Kit (BUC10705) is specifically designed for John Deere models.
Which mulching blades fit MTD or Cub Cadet mowers?
Grasscool 942-0616A 42-Inch Mulching Blades are compatible with Cub Cadet, MTD, and Troy Bilt models.
Is a gas-powered mower better for thick grass mulching?
The 21"Steel Deck Gas Lawn Mower with a 144cc engine provides robust performance for thick grass.
Can cordless mowers effectively mulch thick grass?
The Greenworks 60V Brushless Cordless Mower offers strong mulching performance, suited for dense grass.
What mulching attachment fits 42"or 46"decks?
The KUAFU Tractor Mulching Cover is compatible with 42"and 46"lawn mower decks.
