134149 Mulching Blades for Craftsman 42 inch Mower Blade, Compatible with 42" Cut Craftsman/Husqvarna/Poulan Mowers Replaces 422719, 424752, 777134149, 532134149, 2 Pack

What It Is

These are aftermarket mulching blades for 42-inch cut riding mowers, designed to chop grass clippings finely and return them to the lawn as natural fertilizer. They fit Craftsman, Husqvarna, and Poulan models with a 42-inch deck.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Must be exactly 42 inches (measured cutting path, not deck shell). Measure blade tip-to-tip if unsure.
• OEM cross-reference: Replaces Craftsman 422719, 424752, and Husqvarna/Poulan 532134149 or 777134149. If your mower uses these part numbers, these fit.
• Center hole: Standard 5-point star center hole (common for stamped spindle shafts). Check your blade’s center hole shape—if it’s a round hole with keyway, these won’t fit.
• Blade length: 21 inches from tip to tip. Measure your old blade’s length and center hole diameter (typically 1 inch) to confirm.

Key Things to Know

• Installation difficulty: Easy (remove deck or tilt mower, use a socket and torque wrench to 70-90 ft-lbs). No special tools beyond a blade removal tool or block of wood.
• Mulching vs. bagging: These are mulching-only blades—they have a curved, high-lift design that recuts clippings. They won’t discharge or bag well. Use only with a mulching plug or cover installed.
• Quality: Aftermarket steel, not OEM, but rated 4.8/5. Expect good durability for residential use; may dull faster than premium brands if hitting rocks or roots.
• Common gotcha: Balance check is critical. After mounting, spin blade by hand—if it wobbles, replace. Unbalanced blades vibrate and damage spindles.

Should You Buy It

Buy these if you have a 42-inch Craftsman, Husqvarna, or Poulan mower with a star center hole and want an affordable mulching upgrade for lawn health. Avoid if you need bagging/discharge blades or have a different deck size or center hole shape.