OCPTY Mulching Blades 21 '' Deck Mower Blades for Craftsman SPM209370365, for Cub Cadet 21 inch 742-04276,742-0741,942-0741A,for MTD 742-0741,742-741,942-0741,942-0741A Mower Blades 2Pack

What It Is

This is a 2-pack of 21-inch mulching blades designed to replace OEM blades on select Craftsman, Cub Cadet, and MTD walk-behind mowers. They are intended for mulching—chopping clippings finely to return nutrients to the lawn—not bagging or side-discharge.

Fitment & Compatibility

Before buying, confirm these four things:

• Deck size: Deck must be exactly 21 inches. Measure the blade length (tip to tip) on your current blade—if it’s 21 inches, these fit.
• Model numbers: Compatible with Craftsman SPM209370365, Cub Cadet 742-04276, 742-0741, 942-0741A, and MTD 742-0741, 942-0741, 942-0741A. Check your mower’s model number (not engine model) against this list.
• Center hole & drive: These use a standard 5-point star center hole (common for MTD/Cub Cadet). If your mower has a round or oval hole, they won’t work.
• OEM vs aftermarket: These are aftermarket, not genuine Cub Cadet/MTD. Fitment is good, but tolerances may vary slightly.

Key Things to Know

• Quality: Users report decent steel thickness and balance. Sharpness out of the box is acceptable but not premium. Expect to sharpen after 10–15 hours of use.
• Installation: Straightforward—remove the old blade, clean the spindle, and torque to 35–45 ft-lbs. Use a blade removal tool to prevent spinning. No special adapters needed.
• Common gotcha: These are mulching-only blades. If your mower has a side-discharge chute, you’ll need to install a mulching plug (not included) to prevent clumping. Also, they are heavier than OEM, which may slightly increase vibration on older spindles.
• Warranty: No manufacturer warranty listed. Check Amazon return policy before buying.

Should You Buy It

Buy this pack if you have a 21-inch MTD-platform mower (Craftsman, Cub Cadet, MTD) and want a budget-friendly mulching blade replacement. It’s a solid value for light-to-medium use, but if you mow thick, wet grass or want longer edge life, consider spending more on OEM or premium aftermarket blades (e.g., Oregon G5).