Ragged grass tips and torn turf usually mean your cutting deck needs immediate attention. Dull or bent steel drags down your engine, burns through more fuel, and leaves yellowing patches across an otherwise healthy lawn. Evaluating a craftsman mower blade vs alternatives helps you secure the right lift profile and steel hardness without overspending on routine deck maintenance. Many riding mower owners face the dilemma between paying extra for brand-name factory parts or picking durable aftermarket replacements that deliver matching deck airflow.
Selecting replacement steel requires matching your specific deck size and center mounting hole pattern. You might look at universal lawn mower blades to handle weekly trimming, but dedicated tractor designs often demand exact star patterns or bow-tie cutouts to seat properly on the spindle. Product specifications and user feedback show that aftermarket high-lift and mulching options frequently feature heavy gauge alloy steel and rust-resistant coatings that hold up against rough terrain. Making an informed choice keeps your grass cleanly sliced instead of bruised and ragged.
Pros
- Durable alloy steel construction resists dulling and deformation, even on thick or wet grass.
- Precise fit eliminates wobble and vibration, ensuring smoother mowing and a more uniform cut.
- Affordable price point compared to dealer-branded replacements without sacrificing fit or function.
- Easy to install with basic tools - a simple bolt-on swap that takes minutes.
- Compatible with multiple Greenworks 19-inch models, making it a versatile spare for households with more than one mower.
Cons
- Only fits Greenworks 19-inch mowers; not suitable for other brands or mower sizes.
- Steel blade can rust if left damp after use, so proper drying and storage are important.
- Some users find the blade needs sharpening after heavy use; routine maintenance is expected for any steel blade.
This Greenworks replacement lawn mower blade is purpose-built for the company's 19-inch corded and cordless electric mowers. It's not a universal blade - it's a direct OEM-style replacement for models like 2501302, 2500502, 25223, 25272, and 25292. If you own one of those mowers, this blade bolts right on with no filing or drilling.
Who should buy this? Homeowners who rely on a Greenworks 19-inch mower for their lawn care. Whether you're using the corded version for a small yard or the cordless for a medium lot, this blade keeps your mower cutting cleanly. It's a straightforward swap that restores cutting performance when the original gets dull or damaged.
Performance-wise, the blade is forged from a single piece of alloy steel, which gives it good rigidity and longevity. The grind on the cutting edge is sharp right out of the box and provides a clean slice through grass, reducing tearing and promoting healthier turf. The 17.72-inch actual length matches the mower deck precisely, so you get full cutting width without leaving uncut strips.
Build quality is solid for the price. The steel won't bend easily under normal use, and the black finish offers some corrosion resistance though it's not a coated blade. At 16 ounces, it's light enough to handle without strain during installation. You'll need a socket or wrench to remove the center bolt, but the process is simple and well within reach of a DIY homeowner.
One realistic drawback is compatibility - it only works on Greenworks 19-inch models, so no mixing with other brands. Also, being bare steel, it will rust if you leave it wet after mowing. Rinsing and drying before storage takes a minute but extends blade life. Overall, this is a reliable, affordable replacement that keeps your Greenworks mower running efficiently season after season.
Brand: Greenworks
Model Number: 29373
Blade Length: 17.72 inches
Cutting Width (Mower): 19 inches
Material: Alloy Steel
Weight: 16 ounces
Compatible Mower Models: 2501302, 2500502, 25223, 25272, 25292
Power Source: Corded Electric / Cordless (depends on mower)
Assembly Required: Yes (bolt-on installation)
Color: Black
Pros
- Exact fit for a wide range of 42-inch riding mowers with no need for additional parts
- Dramatically improves cut quality, especially for mulching and bagging applications
- Smooth, quiet operation reduces noise fatigue during long mowing sessions
- Durable build and good balance prevent vibration and premature wear
Cons
- High-lift blades can suck up small objects like garden hoses or rocks, so extra caution is needed around debris
- Fitment must be double-checked against the full model number because slight variations exist between mower series
- Blades may be slightly heavier than some stock blades, which could affect mower vibration on older decks
The UDC Parts 138971 (also labeled 532138971) is a 42-inch high-lift mower blade designed to replace OEM parts on a huge range of riding mowers from Craftsman, Husqvarna, Poulan, AYP, and others. This two-pack provides both blades needed for a full deck, making it a convenient and cost-effective alternative to buying from the local hardware store.
Who should buy these blades? They are ideal for homeowners and DIYers who want to improve the cut quality of their 42-inch riding mower without paying OEM prices. Contractors and property maintenance crews will also appreciate the consistent performance and durability across multiple mowing cycles. The high-lift design is especially beneficial for those who mulch or bag grass, as it produces a fine, evenly distributed clippings that disappear into the lawn, eliminating the need for raking or re-mowing.
Real-world performance is outstanding. Users report a dramatic reduction in noise, with the blades producing a soft hum rather than a loud roar. The cut is clean and even, even in slightly overgrown grass. The high-lift action creates a vacuum effect that lifts grass before cutting, resulting in a manicured look. Several reviews mention being able to drop the deck height one notch and still get a great cut. Durability has been solid after several months of use; the blades hold their edge and show no signs of bending or chipping.
Installation is straightforward. The blades feature a standard five-point star center hole and match the OEM dimensions exactly: 21 inches long, 2-1/4 inches wide, and 0.157 inches thick. They bolt directly onto the spindle without any need for adapters. Balance is good, and vibration is minimal, which reduces wear on spindle bearings and improves operator comfort.
Drawbacks are few but worth noting. The strong suction can pull in small debris like stones or hoses, so you must keep the area clear. Also, because the blades are slightly heavier than some stock ones, they might cause a minor imbalance on older, worn-out decks. Double-checking compatibility using the full model number of your mower is essential, as some models with similar names may use different blades. Overall, these blades deliver exceptional value and performance. If you want a quieter, cleaner cut from your 42-inch rider, this two-pack is a no-brainer.
Blade Length (diagonal): 21 inches
Width: 2-1/4 inches
Thickness: 0.157 inches
Center Hole: 5-point star
Air Lift Height: 15/16 inch
Cutting Edge Length: 3-5/16 inches
Compatible Deck Size: 42 inches
Quantity: 2 blades per pack
Replaces OEM Part Numbers: 532138971, 138971, 127843, 532127843, 138498, 532138498, 138971X431, 134149, 532134149, 531307224, CMXGZAM110136, 131323, 532131323, 594892701, 917127843, 917131323, 917138498MS, 917532138498
These blades are designed to fit a wide variety of 42-inch riding mowers from the following brands and model series. Always verify using your mower's full model number before purchasing.
Husqvarna: LTH, LT, YTH, YT, TS, RZ series including YTH22V42, YTH18542, YTA18542, YTH1542XP, LTH130, LTH140, LTH152, YTH2042, TS142, RZ4219, and many more (see full product description for complete list).
Craftsman: LT2000, YT3000, DLT2000, DLT3000, DYT4000, YT4000, DYS4500, YS4500.
Poulan: PB, PP, PO, BB, CO, PR, PXT, HD, PBA, PD, XT series including PB195H42LT, PP175G42, PB20H42YT, and others.
AYP: YE1442A, RE1242A, RL1242A, and many models with prefix 3420, 4211, 4217.
Other brands: Jonsered (J, LT13, LT15), Dixon (D19KH42), Weed Eater (WET2242STA), Murray (425014X92E), Central Park, Statesman, and Winston Pro.
If your mower is not listed, check the OEM blade part number against the list above. If it matches one of those numbers, these blades will work.
Pros
- Excellent value compared to OEM blades, saving money without sacrificing cut quality
- High lift design works well for bagging and side discharge, reducing clumping
- Sturdy construction and good balance out of the box, minimizing vibration
- Fits a wide range of popular lawn tractors, simplifying replacement
Cons
- Only fits 5-point star center hole adapters; must check your current blade to avoid ordering wrong type
- Some users report slightly heavier weight than stock blades, which may affect performance on lighter mowers
- Paint on cutting edges wears off quickly, though this is normal and does not affect function
If you own a 42-inch deck riding mower from Craftsman, Husqvarna, or Poulan Pro and need fresh blades, the Grasscool 138971 replacement set is worth a close look. These are high lift blades designed for better grass discharge and a cleaner cut, especially in thicker or damp conditions. They come with a 5-point star center hole that matches many popular models including the Craftsman T110, LT1000, LT2000, and Husqvarna YTH18542. Before ordering, double check that your mower uses a 5-point star adapter, not a 6-point, because these won't swap over.
Performance wise, these blades do exactly what you'd expect. They slice through grass cleanly and the high lift design helps toss clippings into the bag or out the chute without leaving clumps behind. Multiple reviews mention that the blades are balanced well out of the box, which means minimal vibration during operation. That's a big plus for comfort and for reducing wear on the spindle assembly. For homeowners and DIYers cutting a couple of acres weekly, these hold up nicely. The steel is heat treated and the cutting edges come with a protective paint coating that resists rust, though it will wear off after a few mowings as the blades do their job.
Build quality is solid at this price point. Grasscool puts these through hardness, balance, and performance tests, and that shows in the consistency of the product. The blades are slightly thicker than some OEM options, which adds stiffness but might add a little extra weight. For most riders that won't matter, but if your mower is on the lighter side you may notice a small difference in engagement feel. Installation is straightforward if you're comfortable with a socket wrench, and the blades line up perfectly with the 5-point star pattern.
One realistic limitation is the star point compatibility. There are two common patterns for these Craftsman-style mowers, and ordering the wrong one is a common mistake. Also, a few users noted that on Poulan Pro models the fit can be a bit tight, so measure carefully. That said, the vast majority of buyers report a perfect fit and improved cutting performance over worn OEM blades.
Overall, the Grasscool 138971 high lift blades are a smart buy for anyone who wants reliable performance without spending top dollar. They're best suited for homeowners, DIYers, and light commercial users who maintain their own equipment. If you confirm the 5-point star pattern and match your model from the compatibility list, you'll get smooth operation and a clean lawn at a fraction of the cost of name-brand replacements.
Pros
- Excellent mulching performance with reduced clogging on overgrown grass.
- Durable construction that passes multiple quality tests for balance and hardness.
- Easy to identify correct mounting pattern to avoid ordering the wrong blade.
- Works with a wide range of popular riding mower models.
Cons
- Check your original blade's mounting pattern before ordering: this blade uses a 5-point star, not a 6-point.
- Paint may wear off quickly on cutting edges (this is normal and does not affect performance).
- Only fits 42-inch deck mowers, not compatible with other deck sizes.
These Grasscool mulching blades are a drop-in replacement for Craftsman, Poulan Pro, and Husqvarna riding mowers with 42-inch cutting decks. They are designed for homeowners and DIY enthusiasts who want a reliable blade that handles mulching, bagging, and side discharge without swapping out hardware. The toothed design and 1-inch air lift create strong airflow that lifts grass for a clean cut and reduces clogging even in thick, overgrown conditions.
In real-world use, these blades excel at shredding clippings into fine particles that decompose quickly. The high-lift shape improves bagging capacity by an estimated 50 percent, which means fewer stops to empty the bag. Users report good balance and minimal vibration after installation, thanks to the manufacturer's balance testing. The painted edges resist rust during storage and also provide a non-slip surface for safe handling during installation.
Build quality is solid: the steel is heat-treated to pass Rockwell hardness and V-bend tests, and each blade goes through chip and performance checks. One practical drawback is that you must verify your mower's mounting pattern before buying. Craftsman 42-inch decks use either a 5-point star or a 6-point star pattern, and ordering the wrong one will not work. Check your original blade before completing your purchase.
Overall, these blades are a dependable choice for regular lawn maintenance and occasional rough cutting. They deliver consistent mulching performance, reduce clogging, and offer good value for the price. If you own a compatible 42-inch deck mower and want hassle-free mulching, this set is worth considering.
Blade Type: Toothed mulching blade
Deck Size: 42 inches
Blade Length: 21 inches (533 mm)
Air Lift: 1 inch (25 mm)
Center Hole Shape: 5-point star
Blade Width: 2.5 inches (63.5 mm)
Thickness: 13/64 inch (5 mm)
Cutting Edge Length: 4 inches (102 mm)
Package Dimensions: 22 x 3 x 1.5 inches
Item Weight: 5.54 pounds
Manufacturer: Grasscool
OEM Replacements: 134149, 138498, 138971, 139775, 532138971, and more
Pros
- Affordable replacement blade that works on many 21 inch deck models.
- Durable alloy steel stands up to regular use and resists corrosion.
- Easy installation with painted edges that protect hands and prevent rust.
- Effective mulching performance that helps maintain a healthy lawn.
Cons
- Compatibility list is extensive but still requires a check for specific mower model and year before purchase.
- Some users may find the blade needs sharpening sooner if used on rough terrain frequently.
- No included hardware like washers or bolts for installation.
The Hipa 942-0741A is a replacement mulching blade designed for 21 inch cutting decks on walk-behind mowers, self-propelled mowers, and even some riding lawn tractors. It's a straightforward accessory that targets the heart of lawn care: cutting and managing grass clippings. If you own a compatible Troy Bilt, Craftsman, MTD, or similar model from the mid-1990s onward, this blade could be a smart, budget-friendly swap.
This blade excels for the typical homeowner who mows weekly and wants a cleaner yard without constant bag emptying. The 3-in-1 design means you can switch between mulching, bagging, and side discharge just by changing the mower's plug or discharge chute (depending on your mower's setup). The high-lift wing helps throw clippings into the bag more efficiently, which really cuts down on extra passes. In real-world use, the alloy steel holds up well against rocks and sticks, though any blade will dull eventually with heavy use.
Build quality is solid for the price point. The blade is made from alloy structural steel with added chromium and molybdenum, which improves hardness and corrosion resistance. The paint coating on the edges is a nice touch to reduce rust during storage and to keep your fingers safe while handling the blade. Just keep in mind that the paint will wear off quickly as you mow. At 21 inches long and 1.74 pounds, it's lightweight enough to swap without much effort, but you'll still want to use thick gloves and check for cracks before each use.
One realistic limitation is the compatibility: while the list of supported models is huge, you still need to confirm your specific mower's deck size and blade mount pattern (bow tie center hole). Not every 21 inch deck uses the same blade profile, so double check your old blade's shape and dimensions. Also, the blade does not come with mounting hardware, so reuse your existing bolts and washers or buy new ones separately.
Overall, the Hipa 942-0741A is a reliable, affordable choice for maintaining a healthy lawn without emptying the budget. It's best suited for DIY homeowners who want a straightforward replacement that works across multiple mower brands. For the price, it delivers good durability and effective mulching performance that keeps your grass looking neat and your lawn fed naturally.
Blade Length: 21 inches (533 mm)
Blade Width: 2-1/4 inches (57 mm)
Thickness: 9/64 inch (3.4 mm)
Center Hole: Bow tie shape
Air Lift: 1-1/8 inch (28 mm)
Material: Alloy structural steel (Cr-Mo enhanced)
Weight: 1.74 pounds
Deck Size Compatibility: 21 inch cut
Brand Compatibility: Troy Bilt, Craftsman, MTD, Yard Machines, Murray, Cub Cadet, Snapper, and more (1995+ models)
Pros
- Compatible with many popular 42-inch riding mower models across multiple brands
- High lift generates strong suction for bagging and side discharge in tall or wet grass
- Solid steel build holds up to typical residential use and occasional debris strikes
- Affordable two-pack provides good value for routine blade swaps
Cons
- May require occasional balancing with a sharpening kit for optimal longevity
- Not designed for mulching specific brands; check deck compatibility before purchase
- Thickness (1/6 inch) is average; heavy commercial use may call for thicker blades
If you own a 42-inch deck riding mower from Craftsman, Husqvarna, or Poulan, you know how frustrating it is when your blades just aren't pulling their weight. The KOFINAM two-pack replacement blades step in with a high-lift design that seriously improves grass discharge. Instead of leaving wet clumps on your lawn, these blades keep the airflow moving, which helps bagging and side discharge work more effectively.
These blades measure 21 inches long, 2-5/16 inches wide, and 1/6 inch thick. The center hole uses a 5-point star pattern that fits a wide range of popular models, including Craftsman LT1000 and Husqvarna YTH18542. The build quality feels solid enough for residential duty. The steel resists bending when you accidentally hit a small branch or a rock, and the edges hold up through a few mowings before needing a touch up.
For homeowners who mow a medium to large lawn once a week, this set delivers reliable performance. The high lift really shines when you're cutting grass that's a bit tall or damp. You'll notice less clogging under the deck and a cleaner cut overall. The blades also reduce vibration because they come prebalanced, which saves your mower's spindles from unnecessary wear.
One honest limitation is that these blades are not a universal fit for every 42-inch deck. You should double check your mower's model number against the compatibility list. Also, while they work great for bagging and side discharge, some mulching setups may perform better with a dedicated mulching blade. But for the price, you get two robust blades that cover most popular OEM part numbers.
Overall, the KOFINAM replacement blades are a smart buy for DIY homeowners and weekend warriors who want a dependable, no-fuss upgrade. They offer better airflow, durable construction, and broad compatibility. If you're tired of uneven cuts and grass clumps ruining your yard's look, these blades are worth trying.
Frequently Asked Questions
Do aftermarket blades fit Craftsman riding mowers as well as original parts?
Yes, aftermarket blades fit accurately as long as you match the center hole shape and cutting length. Manufacturers produce replacements with 5-point star or bow-tie center patterns tailored for Craftsman, Husqvarna, and Poulan 42-inch decks. Checking your original part number against replacement cross-reference lists guarantees proper spindle engagement.
What is the main difference between standard lift and toothed mulching blades?
Toothed mulching blades feature curved cutting wings that repeatedly chop grass clippings into fine nutrients. Standard or high-lift blades emphasize upward suction to throw tall grass out through the side discharge or push clippings directly into a collection bag. Choosing toothed designs helps reduce lawn thatch buildup during fast summer growing seasons.
How do I know if my mower deck uses a 5-point or 6-point star mounting hole?
You can determine the exact pattern by inspecting the center cutout on your existing blade or the spindle shaft underneath the deck. Craftsman models like the LT1000 or T110 can vary by production run, utilizing either five-point or six-point configurations. Installing the wrong center hole shape will damage your mower spindle and cause severe deck vibration.
How often should replacement mower blades be balanced?
Blade balancing should occur after every sharpening session or whenever you notice unusual vibration during mowing. You can learn how to check lawn mower blade balance using a simple cone balancer or a nail on the wall. Running an unbalanced blade causes premature spindle wear and uneven cutting heights across your turf.
Why are the cutting edges of new replacement blades painted?
Protective powder coatings prevent corrosion during shipping and warehouse storage. The thin paint layer wears off cleanly during your first lawn pass, exposing the hardened cutting edge beneath. Homeowners who want razor-sharp performance right away can lightly hone the edge before mounting, but factory sharpness generally cuts cleanly out of the box.
Can I install a 21-inch walk-behind blade on a 42-inch tractor deck?
No, 42-inch tractor decks require a matched pair of blades specifically designed with opposite spindle rotation or shared discharge patterns. Walk-behind blades use different center mount shapes, such as bow-tie or circular hubs, and lack the proper thickness for dual-blade tractor airflow. Always install matching pairs on multi-blade decks to preserve cutting level and balance.
Write Your Review
No reviews yet. Be the first to share your experience!