18-3/4" Mulching Mower Blades for Toro TimeCutter 54 Inch Deck, Replacement for 115-2454-03 115-4999 115-9650-03, Fits Exmark Quest 54", Circle Center Hole 3PCS with Bolts and Washers

What It Is

These are 18-3/4" mulching blades designed for 54-inch zero-turn mower decks, specifically Toro TimeCutter and Exmark Quest models. They replace OEM part numbers 115-2454-03, 115-4999, and 115-9650-03, and include bolts and washers for a complete swap.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Must be exactly 54 inches. These blades come in a set of three (one per spindle).
• Center hole: Circle center hole design—measure yours to ensure it matches (common on Toro/Exmark spindles).
• Model check: Fits Toro TimeCutter 54" (e.g., SS4225, SS5425, MX5400) and Exmark Quest 54" (e.g., QZT726, QZT736). Does not fit Toro Z-Master or Exmark Lazer Z without verifying deck width and spindle type.

Key Things to Know

• Mulching vs. bagging: Designed for mulching—fine grass clippings left on lawn. Not ideal for side-discharge or bagging unless you flip or swap blades.
• Installation: Bolts and washers included, but torque to 40–55 ft-lbs (check your manual). Use a blade lock or block to prevent spindle rotation.
• Common gotcha: Aftermarket blades may vary slightly in thickness or balance. Always test spin freely by hand after mounting—if they hit the deck, they’re wrong.
• Durability: Mid-range steel; will dull faster than OEM but work fine for residential use. Replace every 25 hours or when grass tears, not cuts.

Should You Buy It

Buy if you own a Toro TimeCutter or Exmark Quest with a 54-inch deck and want an affordable mulching blade set with included hardware. Skip if you need OEM exact fit for commercial use or if your deck uses a star-shaped center hole—this is a circle center hole set only.