42 Inch Mower Blades for Craftsman LT1000 LT2000 T110 YT3000 138971 532138971 Poulan Pro 42" Deck Riding Mower Lawn Tractor PP19A42 Husqvarna YTH18542 (5 Point Star)

What It Is

This is a set of 42-inch mower blades designed for riding lawn tractors and zero-turn mowers with a 42-inch cutting deck. They fit Craftsman LT1000, LT2000, T110, YT3000, Poulan Pro PP19A42, Husqvarna YTH18542, and other models using OEM part #138971 or 532138971. The 5-point star center hole is critical for spindle mounting.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Must be exactly 42 inches. Measure blade tip to tip if unsure.
• Center hole: Must be a 5-point star (not a round hole or 6-point). Count the points.
• OEM cross-reference: Confirm your model uses 138971 or 532138971. Check your owner’s manual or existing blade for stamped numbers. These blades also replace Husqvarna 532138971 and Poulan 138971.

Common compatible models: Craftsman LT1000, LT2000, T110, YT3000; Poulan Pro PP19A42; Husqvarna YTH18542. Not for 46-inch or 54-inch decks.

Key Things to Know

• Quality: Aftermarket blades; sharpness and balance may vary. Inspect for warping before install.
• Installation: Moderate difficulty. Use a torque wrench to tighten to 70–90 ft-lbs. Always lift the deck and disconnect the spark plug.
• Common gotcha: The 5-point star must align perfectly—forcing it can strip the spindle. Lubricate lightly if tight.
• Deck leveling: After installing, check blade height left-to-right and front-to-rear. Uneven blades cause scalping.

Should You Buy It

If you own a 42-inch Craftsman, Poulan, or Husqvarna tractor with a 5-point star spindle and need a budget-friendly replacement set, these fit the bill. At $45.99, they’re a solid value for standard residential mowing—just verify your OEM part number first. Not ideal for commercial use or if you demand premium balance.