8TEN LawnRAZOR Blade Set for Husqvarna YTH224T YT46LS TS246 YTH224TFI TS346 46 Inch Deck 581043901 (Mulching) 2 Pack

What It Is

This is a set of two mulching blades designed for 46-inch cutting decks on select Husqvarna lawn tractors. The 8TEN LawnRAZOR blades are an aftermarket replacement for OEM part 581043901, intended to finely chop grass clippings for nutrient recycling rather than bagging or side-discharging.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: These blades fit only 46-inch decks—measure your deck width to confirm.
• Model match: Compatible with Husqvarna YTH224T, YT46LS, TS246, YTH224TFI, and TS346. Check your model number under the seat or in the manual.
• Measurements: Each blade is 20.5 inches long, with a 5-point star center hole (1-inch diameter) and a 0.25-inch thickness. Measure your old blade’s length, center hole shape, and thickness to ensure a match.
• OEM vs. aftermarket: These are not genuine Husqvarna parts, but they match the OEM specs for 581043901. If you need exact factory fitment, stick with OEM.

Key Things to Know

• Mulching performance: The LawnRAZOR design has a higher lift and curved edges to recirculate clippings. Works best with dry grass—wet grass can clump under the deck.
• Installation: Simple swap with a socket wrench. Torque the blade bolt to 40–50 ft-lbs. Use a blade removal tool or block of wood to prevent spinning.
• Common gotchas: Ensure the blade’s star center aligns properly with the spindle—forcing it can strip the mount. Also, these are for mulching only; they won’t bag or discharge as efficiently as standard blades.
• Durability: 8TEN blades are typically made of hardened steel, but reviews note they may dull faster than OEM on rocky or sandy soil.

Should You Buy It

If you own one of the listed Husqvarna models and want a budget-friendly mulching upgrade for a 46-inch deck, this two-pack is a solid choice. It’s not for bagging or heavy-duty commercial use, but for regular lawn care on standard turf, it offers good value over OEM pricing. Just confirm your deck size and blade measurements first.