Lawn Mower Blades Mulching with 22 inch Deck Fits for 580244001 580244002 for Husqvarna HU550F HU675FE HU700F HU725AWD HU775H HU800AWD LC 356AWD 356V with 22" Walk Behind Mower Deck

What It Is

This is a set of mulching blades designed for 22-inch walk-behind mowers, specifically to fit Husqvarna models like the HU550F, HU675FE, HU700F, HU725AWD, HU775H, HU800AWD, LC 356AWD, and 356V. They replace OEM part numbers 580244001 and 580244002, and are intended for cutting grass into fine clippings that decompose quickly, eliminating the need for bagging.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 22 inches (measure the cutting width, not the overall chassis). These blades are aftermarket replacements for Husqvarna OEM part numbers 580244001 and 580244002. They will not fit other brands or deck sizes. Check the blade’s center hole diameter (typically 1 inch or 7/8 inch) and overall length (roughly 22 inches tip-to-tip) to match your existing blade. Also verify the blade’s offset and thickness—mulching blades often have a curved or angled profile, so compare visually with your old blade.

Key Things to Know

• Installation difficulty: Easy—requires a socket wrench and possibly a blade removal tool. Always disconnect the spark plug and tip the mower with the carburetor side up to avoid oil leaks.
• Quality: At 4.2 stars from 20 reviews, these are solid aftermarket blades but may not be as durable as genuine Husqvarna parts. Expect good mulching performance for residential use.
• Common gotcha: Mulching blades work best when the grass is dry and not too tall. If you bag or side-discharge frequently, these won’t perform as well—stick with standard blades.
• Balance check: After installation, always balance the blade on a balancer or screwdriver to avoid vibration and premature spindle wear.

Should You Buy It

If you own one of the listed Husqvarna 22-inch walk-behind mowers and want fine mulching without bagging, this is a cost-effective upgrade over OEM blades. It’s a good choice for residential lawns where you mow regularly and prefer leaving clippings. Skip it if you need standard lift blades for bagging or side-discharge, or if you have a different brand or deck size.