138971 42 inch 5-Star Mulching Blades for Craftsman LT1000 LT2000 YT3000 T110 Husqvarna YTH22V42 YTH18542 YTA18542 Poulan 42'' Deck Cut Lawn Tractor Zero-Turn Mower 127843 532138971 2-Pack, Black

What It Is

A 2-pack of 42-inch 5-Star mulching blades designed for select Craftsman, Husqvarna, and Poulan lawn tractors and zero-turn mowers with a 42-inch cutting deck. These blades are built for fine mulching—chopping clippings into small particles that decompose quickly—rather than side-discharge or bagging.

Fitment & Compatibility

Before buying, confirm all three:

• Deck size: Must be exactly 42 inches (measured blade tip to tip).
• Center hole: 1-inch round (standard for most Craftsman/Husqvarna/Poulan 42" decks).
• OEM cross-reference: Replaces Craftsman 138971, 532138971, Husqvarna 532138971, and Poulan 127843.

Fits these models (common examples): Craftsman LT1000, LT2000, YT3000, T110; Husqvarna YTH22V42, YTH18542, YTA18542; Poulan 42" cut tractors. Does not fit 46" or 54" decks, or older Craftsman models with a 5/8" or 7/16" center hole. If your deck uses a different spindle bolt pattern, these won’t work.

Key Things to Know

• Mulching only: These are not for bagging or side-discharge. Using them for anything else will clog the deck or leave clumps.
• Installation: Straightforward—remove old blade, note orientation (cutting edge faces forward), torque spindle bolt to 70–90 ft-lbs. Use a blade removal tool; impact wrench optional.
• Quality: 5-Star design provides aggressive lift and fine cutting, but blades are thinner than some OEM options—may wear faster on rocky or sandy lawns.
• Common gotcha: The 1-inch hole is correct for most, but double-check your spindle’s center hole size before buying. Some older Craftsman decks use a 5/8" hole.

Should You Buy It

If you own a Craftsman, Husqvarna, or Poulan 42" deck tractor and want a dedicated mulching blade that produces fine clippings, this is a solid, affordable choice. It’s not for bagging or rough terrain, but for normal mulching on a clean lawn, it delivers good results for the price.