134149 138971 42" Mulching Blades for Craftsman LT2000 LT1000 YT3000 Husqvarna YTH22V42 YTH18542 Poulan Pro 42 inch Deck Riding Lawn Mower Replace 532138971 532134149 138498 (5 Point Star), Black

What It Is

This is a set of three 42-inch mulching blades designed for riding mowers with 5-point star center holes. They replace OEM part numbers 532138971, 532134149, and 138498, and are intended for cutting grass into fine clippings that decompose quickly, eliminating the need for bagging.

Fitment & Compatibility

Before buying, confirm your deck size is exactly 42 inches (measured blade tip to blade tip). These blades are direct replacements for Craftsman LT2000, LT1000, YT3000, Husqvarna YTH22V42, YTH18542, and Poulan Pro models with 42-inch decks. Check your current blade’s center hole shape—these use a 5-point star pattern, not a standard oval or round hole. Also verify blade length (approx. 20.5 inches end to end) and thickness (0.25 inch). Aftermarket set, so OEM part numbers match but brand may differ.

Key Things to Know

• Mulching performance: These blades have a higher lift and curved design to recut clippings. For best results, mow when grass is dry and keep blades sharp.
• Installation: Direct bolt-on for compatible decks. Use a torque wrench set to 70-90 ft-lbs. The 5-point star pattern is less common than oval holes, so ensure your spindle matches.
• Quality: Steel construction, but some users report edges dull faster than OEM. Expect 2-3 seasons with normal use and regular sharpening.
• Balance: Always check blade balance after installation—unbalanced blades cause vibration and damage spindles. A simple balancer tool is cheap insurance.

Should You Buy It

If you own a 42-inch deck Craftsman, Husqvarna, or Poulan Pro riding mower and want an affordable mulching upgrade without buying OEM, this set is a solid value. It’s ideal for homeowners who prefer fine clippings over bagging, provided you’re comfortable with basic blade installation and periodic sharpening. Skip it if you need a standard side-discharge or bagging blade style.