IDEASURE 42-inch Mulching Blades for Riding Mower Decks, 21-3/16in 4-Pack – Hardened Steel, Balanced

IDEASURE 942-0616A mulching blades are a 4-pack of heavy-duty replacement blades engineered to restore clean, even cutting on 42-inch riding mower decks compatible with Craftsman, Troy-Bilt, MTD and similar models.

These OEM-style blades deliver durable performance and efficient clippings circulation for improved lawn finish. Machined from a single sheet of hardened steel, each blade matches the common 6-point star center and the 21-3/16" length used on many 42" decks. They are sold in a set of four so you can replace an entire spindle set at once and regain consistent cutting height and mulching action.

How will these blades affect mowing quality?

Sharper, correctly sized blades produce a more uniform cut and finer clippings, which improves turf appearance and mulching. The consistent blade geometry helps maintain even lift across the deck, reducing scalping and missed strips.

• Precision length 21-3/16" for even contact across a 42" deck
• Balanced profile reduces vibration and ensures smooth rotation
• Thick 0.157" steel for lasting edge retention
• Mulching wing design helps recut and disperse clippings evenly

Which mower models will these blades fit?

The blades are compatible with many 42" riding mower decks from brands like Cub Cadet, Troy-Bilt, Toro and MTD. They replace a range of factory part numbers, but you should always check blade length, center hole pattern, and deck clearance before purchase.

• Fits 42" decks including many Cub Cadet, Troy-Bilt, Toro and MTD models
• Replaces part numbers such as 942-0616A, 742-0616A, 942-04308 and similar
• Center hole: 6-point star pattern — confirm your spindle adapter
• Measure your existing blade: 21-3/16" long, 2-3/4" wide, 0.157" thick

How durable and safe are these replacement blades?

Each blade is cut from a single piece of thick, heat-treated steel to resist bending and chipping. Properly installed and maintained, they provide reliable service life; inspect blades regularly and replace if you find damage or excessive wear.

• Single-piece construction for improved strength and straightness
• Thick gauge material reduces edge rollover and early wear
• Balanced to minimize vibration and protect spindle bearings
• Replace blades in matched sets to preserve deck balance

What are the exact specifications I should verify before ordering?

Confirming a few measurements and the center hole pattern prevents fitment issues. Compare the blade length, width, thickness and the mounting hole shape against your mower’s existing blade or manufacturer guide.

• Blade length: 21-3/16" (measured tip-to-tip)
• Width: 2-3/4"; Thickness: 0.157"
• Center mounting: 6-point star (star-style hole)
• Sold as a set of four identical 942-0616A blades

Who is this for: This four-pack suits homeowners and maintenance crews with 42-inch riding mowers who want a cost-effective way to refresh cutting performance. It’s ideal when replacing worn blades across an entire deck, when matching OEM part numbers, or when restoring mulching capability on compatible Cub Cadet, Troy-Bilt, Toro and MTD machines.