115-2454-03 115-4999 Mulching Blades - Fits Toro 54" Deck MX5400 MX5480 ZX5400 ZX5420 ZX5450 (3 Pack)

What It Is

This is a 3-pack of OEM Toro mulching blades designed to replace blades on Toro 54-inch zero-turn mowers with MX5400, MX5480, ZX5400, ZX5420, or ZX5450 decks. Mulching blades have a curved, high-lift design to recut clippings into fine particles for lawn feeding.

Fitment & Compatibility

• Deck size: Only fits Toro 54-inch decks (not 42", 48", 60", or other brands).
• Models confirmed: MX5400, MX5480, ZX5400, ZX5420, ZX5450. Also fits TimeCutter models with 54" fabricated deck (e.g., SS5425, SS5000).
• OEM vs aftermarket: These are genuine Toro blades (OEM part #115-2454-03 / 115-4999). Aftermarket equivalents exist but often have slightly different balance or lift.
• Measurements: Blade length is 20.5", center hole 5/8" hex, thickness ~0.22". Always measure your existing blade to confirm.
• What to check: Verify your deck is a 54" fabricated (not stamped) deck. Check that your blade spindle uses a 5/8" hex hole and that the blade bolt pattern matches (three-hole pattern, 4" spacing).

Key Things to Know

• Installation difficulty: Easy – remove blade bolt, swap blade, torque to 70–90 ft-lbs. Use a blade lock or wedge to prevent spinning.
• Mulching vs bagging: These blades produce fine clippings but will not work well with a bagger or side discharge. If you switch between modes, consider a 3-in-1 blade set.
• Durability: OEM Toro blades are heat-treated steel – they last 1–2 seasons under normal use. Dull blades tear grass, so sharpen or replace annually.
• Common gotcha: The 3-pack is for a 3-blade deck. If your deck uses 2 blades, this pack is overkill. Also, never mix mulching and standard blades on the same spindle – lift will be uneven.

Should You Buy It

Buy this if you own a Toro 54" zero-turn with a fabricated deck and want genuine OEM mulching blades for fine, even clippings. It’s a solid value for a 3-pack at this price, especially if you prefer mulching over bagging. Skip it if you need standard lift blades for bagging or side discharge, or if your deck uses a different blade pattern.