Earthtec 21" Replacement Mower Blades for 61" Decks — 3-Pack Hardened Steel, 5/8" Hole

Earthtec 5101755S replacement mower blades are 21-inch, heavy-duty steel blades engineered to fit 61-inch decks and restore cutting performance for Bobcat, Ferris, Husqvarna and other commercial and residential mowers.

When your mower’s cut has become uneven, ragged, or slow, replacing the blades is the fastest way to regain a clean, efficient mow. These Earthtec blades measure 21" long, 2.5" wide, and 1/4" thick with 5/8" round mounting holes, and are sold as a convenient 3-piece pack so you can service multi-blade decks at once. They’re made from a hardened steel alloy designed for impact resistance and extended edge life, and they match common OEM part numbers so installation is straightforward.

Will these blades fit my 61-inch deck mower?

Yes — the Earthtec 5101755S blades are cut to the common 21" x 2.5" x 1/4" profile and use 5/8" round mounting holes, making them compatible with many 61-inch deck setups. Always compare the blade length, width, thickness and hole size to your existing blades before ordering.

• Exact dimensions: 21" long, 2.5" wide, 1/4" thick
• Mounting hole: 5/8" round center hole
• Replaces OEM numbers like 91-626, 1520842, 5101755, 5020842 and similar

Which mower makes and models are supported?

These blades are designed to fit a wide range of brands that use the Flyer-style 61" deck blades. They work with multiple models from vendors including Bad Boy, Husky, Lesco, Ferris, Great Dane, Windsor, Wright and Scar, plus many Bobcat and Husqvarna part equivalents.

• Bobcat parts: fits numbers such as 112111-03 and 112243-03
• Ferris compatible: 1520842, 1520842S, 5020842, 5101755
• Also compatible with Husqvarna 539101733 and other commonly cross-referenced stats

How durable and sharp are these replacement blades?

Earthtec blades are manufactured from a strong steel alloy selected to resist nicks and impact damage while holding an edge longer than basic stamped blades. They arrive ready to install and will return a cleaner, more uniform cut that reduces tearing and stress on your mower.

• Hardened steel construction for improved impact resistance
• Heat-treated edge to maintain sharpness between sharpenings
• Sold in a 3-pack so you can replace all deck blades together

How easy is installation and maintenance?

Installing the Earthtec 5101755S blades is a straightforward task for anyone familiar with basic mower maintenance. Remove the deck or rotate the deck to access blades, swap the old blades for these replacements, and torque the mounting bolts to the manufacturer’s specification for a safe, secure fit.

• Quick swap: direct-fit replacement for listed OEM numbers
• Maintain by sharpening or rotating blades periodically for longest life
• Always follow mower manufacturer torque and safety instructions

Who this is for: Homeowners, landscapers and municipal crews who operate 61" deck mowers and need a reliable, cost-effective blade replacement will appreciate this Earthtec 3-pack. It’s especially useful for those maintaining multiple-blade decks who want consistent cutting performance and a blade that stands up to regular use across yards, parks, and commercial properties.