Stens 20" Replacement Mower Blade 355-101 – 0.125" Thick, 1" x 3/4" Center Hole

Stens 355-101 is a direct-fit 20" standard replacement lawn mower blade engineered to match Hyper Tough MNA152701 (OEM 2105300125A) specifications for reliable cutting performance.

If your mower needs a new cutting edge, the Stens 355-101 offers a straight-replacement option sized and drilled to fit models that use the Hyper Tough 2105300125A blade. This is a standard, milled blade crafted to the original measurements—20 inches long, 0.125" thick, and 2 1/4" wide—with a 1" x 3/4" offset center hole and 2 1/8" center-to-center mounting. It arrives as a single blade packaged to protect the cutting edge and mounting surfaces so installation goes smoothly.

Will this blade fit my Hyper Tough MNA152701 mower?

Yes—if your mower lists Hyper Tough part 2105300125A or references a 20" blade with the same mounting pattern, the Stens 355-101 is made to match those dimensions. Always compare measurements and hole layout to be sure it’s the correct replacement.

• Length: 20" to match deck span
• Thickness: 0.125" for standard durability
• Width: 2 1/4" for proper cutting profile
• Center hole: 1" x 3/4" with 2 1/8" center-to-center spacing

How do I install the Stens 355-101 blade safely?

Installation follows typical mower blade replacement steps: disconnect spark plug, raise and secure the mower, remove the blade bolt, swap the old blade with the Stens part orientated to the same direction, and torque the fastener to manufacturer specs. Use gloves to protect your hands and confirm the blade clears the deck before lowering the mower and reconnecting the spark plug.

• Disconnect spark plug to prevent accidental starts
• Match blade orientation (cutting edge curve and rotation)
• Tighten to the mower manufacturer’s torque recommendation
• Check clearance and balance after installation

What cutting performance and durability can I expect?

The Stens 355-101 is a standard mower blade designed for everyday lawn maintenance—delivering clean cuts when sharp and reliable longevity when properly maintained. It’s not a specialty mulching blade, but its dimensions and thickness balance cutting strength with compatibility for the specified Hyper Tough models.

• Standard edge geometry for general-purpose mowing
• 0.125" thickness resists bending in normal use
• Single-blade package includes one replacement blade
• Packaged dimensions minimize handling damage in transit

How do I confirm this is the right part before ordering?

Measure your current blade and confirm the center hole shape and spacing; compare those to the Stens 355-101 specifications. Cross-reference the OEM number 2105300125A and your mower model (Hyper Tough MNA152701) to ensure compatibility.

• Check stamped or printed OEM number on existing blade
• Measure blade length, thickness, width, and hole pattern
• Confirm mower model and deck requirements in the owner’s manual

Who this is for: homeowners and landscapers who own Hyper Tough MNA152701 or other mowers that accept a 20" blade with a 1" x 3/4" center hole and 2 1/8" center-to-center spacing. If you need a straightforward, drop-in replacement that mirrors the original equipment dimensions, the Stens 355-101 gives you a reliable option for routine lawn cutting and maintenance.