Husqvarna 46-Inch High-Lift Mulching Lawn Mower Blade, Lawn Mower Parts for Husqvarna Riding Mowers, Replacement for OEM Part No. 403107, Orange, Pack of 2

What It Is

This is a pair of OEM Husqvarna high-lift mulching blades designed for 46-inch riding mower decks. The aggressive blade angle lifts grass for finer clipping, making them ideal for mulching leaves or tall grass without bagging.

Fitment & Compatibility

• Deck size: 46-inch cutting deck only—measure your deck width to confirm.
• OEM part number: Replaces Husqvarna 403107. Fits most Husqvarna, Poulan Pro, and Craftsman riding mowers with a 46-inch stamped deck (check your model’s parts list for 403107 compatibility).
• Center hole: 1-inch round (common for these decks). Measure your spindle’s center hole diameter—if it’s 7/8-inch or square, these won’t fit.
• Blade length: 18.25 inches, 2.5-inch width, 0.203-inch thickness. Compare to your current blade before ordering.
• Not universal: Will not fit 42-inch or 54-inch decks, or zero-turn mowers.

Key Things to Know

• High-lift design increases suction and bagging performance but slightly reduces engine power in thick grass—avoid using in wet or overly tall grass.
• Installation difficulty: Easy—requires a socket wrench and torque wrench (aim for 70–90 ft-lbs). Use thread-locker on spindle bolts to prevent loosening.
• Mulching vs. bagging: These are mulching blades, not standard flat blades. They chop clippings finer but may leave clumps if you cut too much at once.
• Quality: OEM Husqvarna—consistent balance and sharpness out of the box. Aftermarket copies often have thinner steel or poor balance.

Should You Buy It

If you own a 46-inch Husqvarna (or compatible) riding mower and want better mulching performance without switching to a bagger, this two-pack is a solid value. Avoid if your deck is smaller/larger or you need low-lift blades for side-discharge only.