Aeagle 138971 Mulching Blades for Craftsman LT1000 LT2000 42 inch Mower Husqvarna YTH22V42 YTH18542 YTA18542 YTH1542XP 42" Deck Riding Lawn Tractor 532138971, 5 Point Star, 2 Pack Blue

What It Is

The Aeagle 138971 mulching blade set (2-pack) is designed for 42-inch cutting decks on Craftsman LT1000/LT2000 and Husqvarna YTH22V42, YTH18542, YTA18542, and YTH1542XP riding tractors. It replaces OEM part 532138971 and is meant for mulching—chopping clippings fine enough to leave on the lawn.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Only fits 42-inch decks. Measure your deck’s blade tip-to-tip diameter if unsure.
• Blade pattern: The 5-point star center hole must match your spindle. This is the standard pattern for these Craftsman and Husqvarna models, but check your old blade’s hole shape.
• OEM cross-reference: Replaces Craftsman 138971, 532138971, and Husqvarna 532138971. If your mower uses a different OEM number, measure blade length (likely 20.5 inches), width, and center hole diameter (typically 1 inch with star pattern) to verify.

Not compatible with 46-inch or 54-inch decks, or with standard (non-star) center hole spindles.

Key Things to Know

• Mulching vs. bagging: These blades have a curved, high-lift design for fine mulching. They will not work as well for bagging or side-discharge—stick to mulching use.
• Installation: No special tools beyond a socket wrench and blade removal tool. Torque to manufacturer spec (usually 70-90 ft-lbs). Use thread-locker if your mower vibrates heavily.
• Sharpness out of box: They come sharp but may need a light touch-up after the first few cuts. Check balance before installing to avoid vibration.
• Durability: Made of heat-treated steel; average lifespan is 1-2 seasons depending on debris and mowing frequency. Replace if bent or nicked.

Should You Buy It

If you own a 42-inch Craftsman LT1000/LT2000 or Husqvarna YTH series mower and want to mulch leaves or grass without bagging, this is a solid, affordable choice. It fits exactly, performs well for the price, and has strong user feedback. Skip it if you primarily bag or side-discharge.