ZALANA 134149 Lawn Mower Mulching Blade Replace Husqvarna Poulan 422719 777134149 424752 532134149 - for Craftsman LT1000 LT2000 YS4500 Lawn Tractor (2 PCS) - 42" Deck

What It Is

This is a set of two mulching blades designed for 42-inch cutting decks on Craftsman lawn tractors (LT1000, LT2000, YS4500) and compatible with Husqvarna, Poulan, and other brands. They replace OEM part numbers 422719, 777134149, 424752, and 532134149.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: This blade is for 42-inch decks only. Measure your deck or check your model number—using it on a different size will cause poor cutting or damage.
• OEM numbers: Cross-reference your current blade’s part number with 422719, 777134149, 424752, or 532134149. If your blade has a different OEM number, it may not fit.
• Blade measurements: Each blade is approximately 20.5 inches long, with a 7-point star center hole and a 1-inch diameter. Measure your old blade’s length, center hole shape, and diameter to confirm.

This aftermarket blade fits many Craftsman, Husqvarna, Poulan, and other tractors using the same OEM numbers, but always double-check your specific model.

Key Things to Know

• Quality: Users rate it 4.6/5, noting good mulching performance and durability for the price. It’s an aftermarket alternative, not OEM, but works well for most residential lawns.
• Installation: Simple bolt-on job—remove the old blade (use a block of wood to prevent spinning), install the new one with the lift wing facing up toward the deck. Torque to 70-90 ft-lbs.
• Common gotcha: These are mulching blades, not standard lift blades. They produce finer clippings but may not eject clippings as far if you’re bagging. For bagging, use standard blades instead.
• Balance: Check blade balance after installation. An unbalanced blade causes vibration and uneven cuts.

Should You Buy It

If you have a 42-inch Craftsman LT1000, LT2000, or YS4500 (or a compatible Husqvarna/Poulan model) and want affordable mulching blades for a clean, finely cut lawn, this is a solid choice. Skip it if you need OEM parts for warranty reasons or prefer standard lift blades for bagging.