Grasscool 48 inch Mower Mulching Blades for Husqvarna YTH24V48 Z248f YTH2348 YTH24K48 Z248 YTH2448 48''Zero Turn Lawn Tractor Riding Replace 532180054 180054 173920

What It Is

A set of three 48-inch mulching blades designed to replace OEM blades on Husqvarna riding mowers and zero-turn tractors. These blades chop grass clippings into fine particles that decompose quickly, eliminating the need for bagging.

Fitment & Compatibility

• Deck size: Only fits 48-inch cutting decks. Measure your deck width—if it’s 42” or 54”, these won’t work.
• Model check: Confirmed for Husqvarna YTH24V48, Z248f, YTH2348, YTH24K48, Z248, YTH2448. Not for older or non-Husqvarna decks without verifying spindle pattern.
• OEM part numbers: Replaces Husqvarna 532180054, 180054, and 173920. Cross-reference your current blade’s part number (stamped on blade) to confirm.
• Measurement: Each blade is 16 inches long with a 5-point star center hole and 1-inch diameter. Measure your spindle hole shape and diameter before ordering.
• Genuine vs aftermarket: These are Grasscool aftermarket blades. They should fit OEM spindles, but aftermarket blades can vary slightly in thickness or balance. Check that they don’t rub the deck or hit the discharge chute.

Key Things to Know

• Quality: 4.4 stars from 76 reviews suggests good value, but some users report minor balance issues. Test spin by hand after installation.
• Installation: Requires a socket wrench and torque wrench (45-55 ft-lbs recommended). Use a block of wood to lock the blade. Wear gloves—blades are sharp.
• Mulching vs bagging: These are mulching blades only. If you need to bag or side-discharge, keep your original blades.
• Common gotcha: The set includes three blades, but some 48” Husqvarna decks use two or four blades. Count your existing blades before ordering.

Should You Buy It

Buy these if you own a 48-inch Husqvarna riding mower or zero-turn from the listed models, want to switch to mulching without paying OEM prices, and are comfortable with basic blade replacement. Skip if you need bagging or side-discharge capability, or if you prefer guaranteed OEM balance and durability.