MaxPower 331729B Heavy Duty Blade for 42 Inch Cut Poulan/Husqvarna/Craftsman 134149, 532134149,Black

What It Is

The MaxPower 331729B is a heavy-duty replacement blade designed for 42-inch cutting decks on select Poulan, Husqvarna, and Craftsman lawn tractors. It’s built for mulching or bagging grass and light leaves, intended for residential use on standard turf.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: This blade fits only 42-inch cutting decks. Measure your deck’s cutting width from blade tip to blade tip.
• OEM cross-reference: It replaces Poulan/Husqvarna/Craftsman OEM part numbers 134149 and 532134149. Check your mower’s manual or current blade for these numbers.
• Measurements: The blade is 21 inches long (center hole to tip), with a 1-inch center hole and a 7-point star drive. Confirm your spindle matches this star pattern—some older models use a different drive shape.
• Brand fit: Compatible with most 42-inch Poulan, Husqvarna, and Craftsman tractors from the 2000s onward, but avoid using on zero-turn mowers or commercial decks—this is a standard tractor blade.

Key Things to Know

• Quality: Heavy-duty steel, thicker than OEM blades, but may need balancing out of the box. Check with a blade balancer before installing.
• Installation: Easy swap with a socket wrench. Torque the center bolt to 70-80 ft-lbs; overtightening can strip the spindle.
• Gotcha: The star drive can be tight on some spindles—use a mallet to seat it fully. Don’t force it with a hammer.
• Performance: Mulches adequately but leaves some clippings in wet grass. For heavy leaf mulching, consider a dedicated mulching blade.

Should You Buy It

Buy this blade if you need a durable, affordable replacement for a 42-inch Craftsman, Poulan, or Husqvarna tractor and want OEM-equivalent quality without the OEM price. It’s a solid choice for regular mowing on a standard lawn, but skip it if you have a zero-turn or need a high-lift bagging blade.