2105200317A Lawn Mower Blade For 21" Lawn Mower Deck MNA152505 MNA152701

Lawn Mower Blade for 21" Lawn Mower Deck

This replacement lawn mower blade fits 21-inch cutting decks and cross-references with OEM part numbers 2105200317A, MNA152505, and MNA152701.

Overview

This lawn mower blade delivers a clean, even cut for walk-behind and self-propelled mowers with 21-inch decks. Engineered to match OEM specifications, the blade offers reliable performance and durability for residential lawn care. Lawn mower blade users seeking an exact fit will find this direct replacement restores cutting efficiency.

Built For Performance

• Hardened, heat-treated steel resists bending and impact damage
• Precision-balanced design minimizes vibration and spindle wear
• Sharp, factory-ground cutting edge reduces grass tearing
• Matches OEM dimensions for a bolt-on installation
• Durable powder-coat finish guards against corrosion

On-The-Job Use

• Routine residential lawn mowing
• Mulching and side-discharge cutting
• Clearing overgrown grass and light weeds
• Property maintenance and landscaping
• Fleet mower and rental equipment servicing

Specs At A Glance

Good To Know

Q: Will this blade fit my 21-inch mower? A: If your mower uses a 21-inch deck and the part numbers 2105200317A, MNA152505, or MNA152701, this blade should fit. Always check your owner’s manual or existing blade for exact cross-reference.

Q: How often should I replace or sharpen the blade? A: Inspect for nicks and dullness every 20-25 operating hours. Sharpen or replace when grass tips fray and the cut appears uneven.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.