134149 Mulching Blades for 42" Deck, 532134149 Lawn Mower Blades Compatible with Hus-qvarna Pou-LAN Craftsman LT1000 LT2000 Riding Mower, Replaces 138971, 422719, 424752, 532422719, 2 Pack

What It Is

This is a 2-pack of mulching blades for 42-inch cutting decks, designed to chop grass clippings into fine particles that decompose quickly. They fit many entry-level to mid-range riding mowers from Husqvarna, Poulan, and Craftsman (including LT1000 and LT2000 series).

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Your mower must have a 42-inch cutting deck. Measure deck width or check the model number.
• Blade measurements: These blades have a 20.5-inch length, 2.5-inch width, and a 1-inch center hole with a 0.75-inch pin hole. Measure your old blade or confirm these specs match.
• OEM part numbers: They replace 138971, 422719, 424752, 532422719. Cross-reference with your owner’s manual or existing blade part number. They are aftermarket replacements, not genuine OEM, but fit many Husqvarna, Poulan, and Craftsman models with 42" decks (e.g., LT1000, LT2000, YT3000, EB-42).

Do not assume fitment based on brand alone—double-check deck size and mounting hole dimensions.

Key Things to Know

• Mulching vs. side-discharge: These are dedicated mulching blades. They will not work well for bagging or side-discharge unless you switch blades.
• Installation: Moderate difficulty. You’ll need a socket wrench, torque wrench (recommended 70-90 ft-lbs), and a blade removal tool or block of wood to hold the blade. Lift the mower deck safely.
• Quality: Aftermarket blades are generally good for the price, but may not be as durable as OEM. Check for balanced edges out of the box—if not, you’ll need to balance them to avoid vibration.
• Common gotcha: The center hole and pin hole dimensions must match your spindle. Some Craftsman decks use a different pin configuration—measure carefully.

Should You Buy It

Buy this if you have a 42-inch deck on a Husqvarna, Poulan, or Craftsman LT1000/LT2000 and want affordable mulching blades for regular grass cutting. Skip it if you need OEM-grade durability for heavy use or if your deck uses non-standard blade mounts. For the price, they’re a solid value for homeowners.