532138971 Mdeium Lift Mower Blades for Craftsman 42'' Deck LT2000 YT3000 Husqvarna YTH22V42 YTH18542 YTA18542 YTH1542XP Poulan 532127843 Replace 138971 127843/5 Point Star Blades 2 Pack

What It Is

This is a set of two medium-lift mower blades designed for 42-inch cutting decks on Craftsman LT2000/YT3000, Husqvarna YTH22V42/YTH18542/YTA18542/YTH1542XP, and Poulan tractors. They replace OEM part numbers 532138971 and 532127843. The medium lift is a good all-around choice for bagging and side-discharge, offering decent airflow without excessive power draw.

Fitment & Compatibility

Critical checks before buying:

• Deck size: Must be 42 inches (measured blade tip to tip). These will not fit 46-inch or 54-inch decks.
• Blade pattern: Five-point star center hole (not a standard 5/8" round or oval hole). Measure your old blade’s center hole shape.
• Blade length: 21 inches from tip to tip. Confirm your current blades are 21".
• OEM cross-reference: Replaces 532138971 and 532127843. If your model uses 532140043 or 532156318, these are different lengths or hole patterns.
• Model check: Fits most Husqvarna/Craftsman/Poulan tractors with a 42" deck and a 5-point star spindle. Verify your deck and spindle type online with your model number.

Key Things to Know

• Medium lift vs. high lift: Medium lift is quieter and less prone to clogging in wet grass but won’t lift as aggressively for bagging. If you bag frequently, consider a high-lift blade.
• Installation: Requires a torque wrench (tighten to 70–90 ft-lbs). Use a blade removal tool or block of wood to prevent spinning. Left-hand thread on some spindles—turn clockwise to loosen.
• Balance: Aftermarket blades may need balancing before use. A simple blade balancer ($10) prevents vibration that wears spindle bearings.
• Sharpness: These come unsharpened. You’ll need to file or grind the cutting edge before first use for optimal cut quality.

Should You Buy It

If you own a 42-inch Craftsman, Husqvarna, or Poulan tractor with a five-point star spindle and want a reliable, affordable replacement for bagging or side-discharge in normal lawn conditions, this is a solid choice. Skip it if you need high-lift blades for heavy bagging or have a different deck size or center hole pattern.