10 Best Lawn Mower Blades 2026 in the United States

The UDC Parts High Lift Mulching Blades AM137757 are designed for a variety of John Deere models, making them a versatile option for those who own multiple mowers. The blade length of 17 inches is within the standard range, ensuring it can effectively cover a 48-inch deck size. These blades are crafted with a thickness of 0.160 inches, which provides a good balance between durability and cutting efficiency.

The 7-point star center hole design ensures a secure fit on compatible mowers. The blade is also pre-sharpened, though it is painted over to ensure safety during installation. This paint will wear off during initial use, so there's no need for additional sharpening upon installation. The cutting edge length of 5-1/8 inches contributes to precise grass cutting, making it a reliable choice for maintaining a well-groomed lawn.

The country of origin is China, which may be a consideration for those who prefer domestically produced products. Weighing 5.29 pounds and with package dimensions of 20 x 3 x 2 inches, these blades are easy to handle and store. For those looking for reliable and sharp blades for their John Deere mowers, these UDC Parts blades are a solid option.

The UDC Parts 942-04290-X mower blades are designed specifically for 46-inch decks, featuring a 6-point star center hole that fits a wide range of Cub Cadet, Troy Bilt, Craftsman, and MTD models. Each blade measures approximately 23¼ inches diagonally, with a thickness of 0.150 inches, providing a solid, durable size suitable for residential mulching tasks. The 6-point star blade type ensures a secure fit on compatible decks but limits use to specific mower models, so it's important to verify your mower’s center hole design before purchasing.

These blades have a decent cutting edge length, which supports effective mulching and clean cuts. Users have rated them highly, appreciating the quality and performance that matches OEM standards. However, these blades are not compatible with decks that use S-shape center holes or certain XT1 and XT2 Enduro series models, which might require alternative blades.

In summary, if you own a compatible 46-inch mower with the 6-point star mounting, these blades offer a reliable, sharp, and durable replacement option for mulching and general lawn care. If your mower has a different blade fitting or smaller deck, these won’t work, so checking your mower’s model and blade type is essential.

The UDC Parts GY20850 mower blades are designed specifically for John Deere 42-inch decks, compatible with popular models such as the D105, S100 series, and X300 series. Each blade measures approximately 21-3/8 inches diagonally with a thickness of 0.164 inches, providing a sturdy build for durability. These mulching blades finely cut grass clippings to help nourish your lawn rather than just cutting and discarding them. They come pre-sharpened for precise cutting, although a safety paint coating covers the edge initially and wears off quickly after the first use.

Customers rate these blades highly, noting their sharpness and fit as direct replacements for original John Deere parts, which makes installation straightforward. The blades feature a 7-point star center hole design that ensures a secure fit on compatible mowers. While they are made in China—something that might concern those preferring locally made products—this does not seem to affect their performance. Weighing about 5 pounds for a pair, they are easy to handle during replacement.

These blades are ideal for John Deere owners seeking reliable, OEM-equivalent mulching blades that maintain lawn health while offering good value and durability.