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

What It Is

This is a 2-pack of 42-inch medium-lift mower blades (OEM replacement part #138971 / 532138971) designed for Craftsman, Husqvarna, and Poulan 42-inch deck lawn tractors and zero-turn mowers. They provide standard cutting performance with moderate airflow for bagging and side discharge.

Fitment & Compatibility

Before buying, verify the following:

• Deck size: Only fits 42-inch cutting decks. Measure your deck if unsure.
• Model compatibility: Confirmed for Craftsman LT1000, LT2000, YT3000, T110; Husqvarna YTH22V42, YTH18542, YTA18542; and Poulan 42-inch models. Check your mower’s model number against the list.
• OEM reference: Replaces OEM part #127843 and #532138971. Aftermarket match, not genuine Craftsman.
• Blade dimensions: 42-inch length, 3/4-inch center hole, 1/4-inch thickness. Confirm your spindle accepts these specs.
• Lift type: Medium lift – works for most residential mowing, but not ideal for high grass or heavy mulching.

Key Things to Know

• Installation: Easy swap if you have a socket wrench and blade removal tool. Torque to 50–60 ft-lbs. Use thread locker or anti-seize on bolts.
• Quality: Blue painted finish resists rust, but edges dull faster than premium steel blades. Expect 1–2 seasons of regular use.
• Common gotcha: Verify blade orientation – the lift wings must face up toward the deck. Installing upside down causes poor cut and vibration.
• Balance check: Out of the box, some users report slight imbalance. Lightly file the heavy end if needed or use a blade balancer.

Should You Buy It

If you own a Craftsman, Husqvarna, or Poulan 42-inch lawn tractor and need a quick, affordable replacement for standard mowing, this is a solid choice. It’s not for heavy-duty or commercial use, but for residential lawns and bagging, it gets the job done without breaking the bank. Avoid if you need a high-lift blade for thick grass or a mulching blade.