180054 532180054 Mulching Mower Blades Compatible with Hus qvarna 48" Deck, 173920 Blades Fit for Hu sqvarna 2748GLS YTH2148/Pou lan Pro PB20VA48, Replace 180054 532173921 532180055 917532173921, 3 PK

What It Is

This is a set of three mulching blades (part number 180054 / 532180054) designed for 48-inch decks on select Husqvarna, Poulan Pro, and compatible tractors. Mulching blades chop grass clippings finer than standard blades, letting them settle into the lawn as natural fertilizer—ideal for regular mowing without bagging.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: Only fits 48-inch cutting decks. Measure your deck width if unsure.
• Model match: Confirmed for Husqvarna YTH2148, 2748GLS, and Poulan Pro PB20VA48. Also fits models that originally used OEM blades 173920, 532173921, 532180055, or 917532173921.
• Blade dimensions: Each blade is approximately 20.5 inches long, 2.5 inches wide, with a 1-inch center hole and 5-point star drive. Check your spindle pattern—these are not universal.

Pro tip: Look up your mower’s model number (e.g., YTH2148) on the manufacturer’s site or under the seat for exact OEM part cross-reference.

Key Things to Know

• Quality: 4.4 stars from 59 reviews. Most users report good durability for residential use, but some note they’re slightly thinner than OEM—fine for grass, not for heavy debris.
• Installation: Straightforward swap. Use a torque wrench to tighten blades to 50-70 ft-lbs. Always disconnect the spark plug first.
• Balance: Check blade balance after installation. An unbalanced blade causes vibration, poor cut, and spindle wear.
• Mulching vs. bagging: These blades won’t work well for bagging—they’re designed to recut clippings, not lift them into a catcher.

Should You Buy It

Buy this if you have a 48-inch Husqvarna or Poulan Pro tractor, mow regularly, and want finer clippings for lawn health without bagging. Skip it if you need OEM durability for rough terrain or prefer bagging your clippings. At $26.59 for three blades, it’s a solid value for residential mulching.