Cancanle 20" High-Lift Mulching Blade for 20-inch Walk-Behind Mowers — 1 x 3/4" Center, OEM Fit 742-0640

Cancanle's 20-inch high-lift mulching blade replaces OEM 742-0640 and boosts clippings control and bagging performance on compatible MTD walk-behind decks.

If your 20" walk-behind mower (MTD, Columbia, Bolens, Yard Machines or Cub Cadet models using part 742-0640 / 942-0640 / 490-100-M115) needs a durable replacement blade, this high-lift mulching blade restores cutting quality and airflow for better mulch and collection. Engineered to the same fitment dimensions as the OEM, it ships as a single precision-balanced unit ready to install on 20-inch decks with a 1 x 3/4" center hole configuration.

How does this blade improve mulching and collection?

The high-lift profile creates stronger upward airflow beneath the deck, which lifts grass for a cleaner, more even cut and finer mulching. That airflow also helps move clippings into the bag when bagging accessories are connected.

• High-lift wing design for improved suction and bagging
• 20" cutting length matched to 20" decks for consistent coverage
• Precision center hole 1 x 3/4" for secure, wobble-free mounting

Will this blade fit my mower model and deck size?

This blade is manufactured to fit 20-inch cutting decks used by multiple MTD platforms and listed OEM numbers. Confirm your deck size and spindle hole pattern before ordering for an exact match.

• Compatible OEMs: 742-0640, 942-0640, 490-100-M115
• Fits: MTD Yard Machines, Columbia, Bolens 20" walk-behinds
• Deck size required: 20 inches; center mount: 1 x 3/4"

What are the blade's specifications and material details?

The blade is 20 inches long, 2 1/8 inches in width, and 0.118 inches thick — dimensions chosen for durability, balance, and cutting performance across standard walk-behind mowers. It ships as a single blade ready for installation after sharpening or balancing checks if desired.

• Length: 20 inches; width: 2 1/8 inches
• Thickness: 0.118 inches for strength and wear resistance
• Center hole: 1 x 3/4" to match common spindle spuds
• Quantity: 1 blade included in package

How do I install and maintain the replacement blade safely?

Installation is straightforward: disconnect spark plug, tip the mower to access the blade, remove the retaining bolt, swap blades ensuring proper orientation, torque to manufacturer spec, and reconnect the spark plug. Routine inspection keeps the blade performing and prevents damage to the deck and engine.

• Safety first: always disconnect the spark plug before work
• Confirm blade rotation direction and seating on spindle
• Inspect for balance and sharpen or replace when worn

Who is this for? This Cancanle 20" high-lift mulching blade is for homeowners and lawn-care pros using 20" MTD-compatible walk-behind mowers who want OEM-fit replacement performance for mulching and bagging. It's ideal if your original blade is bent, dull, or missing, and you need a precisely sized, high-lift profile to restore cutting quality and improve clippings handling without changing deck hardware. Purchase a single, ready-to-install blade when you want a cost-effective, direct-fit replacement that matches the listed OEM numbers and fits the 1 x 3/4" center mount pattern.

Package details:

• Includes: 1 x Cancanle high-lift mulching blade
• For use on 20" mower decks (MTD Yard Machines, Columbia, Bolens compatible)
• Dimensions: 20" length; 2 1/8" width; 0.118" thickness; center hole 1 x 3/4"