115-2454-03 Mower Blades Fit for to ro & Ex Mark 54" Deck, Mulching Blades Compatible with to ro TimeCutter HD ZX5400 Titan MX5400 ZX5420, Replace 115-4999 115-4999-03, 3 Pack

What It Is

This is a set of three mulching blades designed for Toro and ExMark zero-turn mowers with a 54-inch deck. They replace OEM part numbers 115-4999 and 115-4999-03, offering a more affordable alternative for grass mulching on residential or light commercial machines.

Fitment & Compatibility

Before buying, verify:

• Deck size: Must be exactly 54 inches. Measure your deck width if unsure.
• Model fit: Listed for Toro TimeCutter HD (ZX5400), Titan MX5400, ZX5420, and ExMark 54" decks. Cross-check your mower’s model number with the seller’s list.
• OEM replacement: These are aftermarket blades, not Toro OEM. They match the OEM dimensions but may differ slightly in material or balance.
• Measurements: Confirm blade length (typically ~18 inches) and center hole size (usually 1 inch) match your spindle. Check your old blade against these specs.

Key Things to Know

• Mulching only: These blades are designed for mulching, not bagging or side discharge. They chop clippings finer for lawn nutrient return.
• Installation: Easy DIY with a socket wrench, but aftermarket blades may require balancing before install to reduce vibration. Use a blade balancer.
• Quality vs OEM: At $35.99 for three, they’re significantly cheaper than Toro OEM blades (often $20–25 each). Some users report slightly shorter lifespan or more vibration.
• Common gotcha: Ensure the blade orientation (lift edge up) and torque bolts to spec (~70–90 ft-lbs). Loose blades cause damage.

Should You Buy It

Buy these if you have a compatible Toro or ExMark 54" deck, want to save money on mulching blades, and are okay with potential minor trade-offs in balance or longevity. Skip if you need bagging blades, prefer OEM reliability, or have a different deck size.