Replacement 72531-VE2-020 (Upper) & 72511-VE1-020 (Lower) Mulching Mower Blade Kit, Compatible with Hon da 21" Cut HRB215 HRB216 HRB217 HRM215 HRR216 HRS216 HRT216 HRZ216 Lawn Mower

What It Is

This is a two-blade mulching kit (upper blade 72531-VE2-020, lower blade 72511-VE1-020) designed for Honda 21-inch walk-behind mowers. It replaces OEM blades to provide finer grass clipping mulching for a cleaner cut and better lawn feeding.

Fitment & Compatibility

• Deck size: Only fits 21-inch cut Honda mowers. Measure your deck width to confirm.
• Model list: Works with HRB215, HRB216, HRB217, HRM215, HRR216, HRS216, HRT216, HRZ216 series. Check your mower’s model tag under the seat or on the deck.
• OEM vs aftermarket: This is a direct replacement for Honda OEM parts 72531-VE2-020 and 72511-VE1-020. Do not mix with other blade types (e.g., standard lift or bagging blades).
• Measurements: Upper blade is ~16.5 inches long, lower ~11 inches. Center hole diameter is 1 inch. Verify your spindle bolt pattern matches.

Key Things to Know

• Installation: Moderate difficulty. You must remove the mower deck and use a blade removal tool. Torque bolts to 35-45 ft-lbs. Never overtighten.
• Mulching performance: The two-blade design creates a vacuum that cuts clippings finer than single blades. Works best with dry grass—wet grass will clump.
• Durability: These are replacement-grade steel, not hardened like OEM. Expect to sharpen or replace every 1-2 seasons with regular use.
• Balance: Always check blade balance after sharpening or installation. An unbalanced blade vibrates and damages the spindle.

Should You Buy It

If you own a compatible Honda 21-inch mower and want the mulching advantage of a two-blade kit without paying OEM prices, this is a solid value. It’s not for heavy commercial use, but for home lawns it delivers a clean, fine mulch. Avoid if you need bagging or side-discharge blades—this kit is mulching-only.