UDC Parts 139775 Lawn Mower Blades Replacement for Husqvarna 42 Inch YTH18542 YTH1542XP YTH22V42 YTA18542 YTH1842 Craftsman LT1000 LT2000 594893101 Poulan PBA195H42LT 532139775/2 Pack Mulching Blades

What It Is

This is a 2-pack of aftermarket mulching blades designed to replace the OEM part 532139775. They fit 42-inch cutting decks on select Husqvarna, Craftsman, and Poulan lawn tractors, ideal for mulching grass clippings into fine particles that decompose quickly.

Fitment & Compatibility

Check these before buying:

• Deck size: Only for 42-inch decks. Measure your deck width to confirm.
• Model fit: Confirmed for Husqvarna YTH18542, YTH1542XP, YTH22V42, YTA18542, YTH1842; Craftsman LT1000, LT2000; Poulan PBA195H42LT. Not universal—verify your model number.
• OEM cross-reference: Replaces Husqvarna/Craftsman part 532139775, 594893101. If your current blade has a different OEM number, measure center hole (usually 1-inch) and blade length (approx. 20.5 inches).
• Aftermarket note: UDC is a third-party brand, not OEM. Quality is generally good, but slight weight or balance differences can occur.

Key Things to Know

• Mulching vs. bagging: These are mulching blades with a curved, serrated design. They will not work well for bagging or side-discharge unless you swap blades.
• Installation: Simple with a socket wrench and torque wrench (aim for 70-80 ft-lbs). Use thread locker if your spindle bolts are loose. Lift or block the mower safely—never rely on the deck alone.
• Balance check: Aftermarket blades may need balancing. Use a blade balancer tool; if one side dips, file the heavy side slightly.
• Sharpness out of box: They come sharp but may need a quick hone for best cut. Dull faster on sandy or rocky lawns.

Should You Buy It

If you own a compatible 42-inch Husqvarna, Craftsman, or Poulan tractor and want an affordable mulching upgrade that chops clippings fine, this 2-pack is a solid value. Skip it if you need bagging blades or have a different deck size. For $21.89, it’s a no-brainer for routine blade replacement.