8TEN LawnRAZOR Upper Lower Mower Blade Set for Honda HRB215 HRB216 HRB217 HRM215 HRR216 HRS216 HRT216 HRZ216 21" Deck

What It Is

This 8TEN LawnRAZOR set includes two blades (upper and lower) designed for Honda 21" walk-behind mowers with twin-blade systems. It’s intended for homeowners with compatible Honda models needing a direct replacement for worn or damaged OEM blades.

Fitment & Compatibility

• Deck size: Fits only 21" Honda mower decks. Measure your deck width to confirm.
• Model fit: Compatible with HRB215, HRB216, HRB217, HRM215, HRR216, HRS216, HRT216, HRZ216 series. Verify your specific model number (found on a sticker under the seat or on the deck).
• OEM vs aftermarket: This is a non-OEM set. It matches OEM part numbers 72511-VH4-000 and 72531-VH4-000 (upper and lower blades) but check blade length, center hole diameter (typically 20mm), and thickness before installing.
• Measurement check: Each blade is about 20.5" long. Measure your old blade’s length, center hole, and offset to ensure a direct swap.

Key Things to Know

• Quality: Made from heat-treated steel with a painted finish. Users report good durability for residential use, but not as thick as OEM Honda blades.
• Installation difficulty: Easy for DIYers. Requires a socket wrench and a blade removal tool (or a block of wood to hold the blade). Torque to 30-35 ft-lbs.
• Common gotchas: The blades are balanced out of the box, but always recheck balance before mounting. The upper and lower blades are distinct—do not mix them up. Some users note the paint chips quickly, which doesn’t affect performance.
• Performance: Designed for standard mulching and bagging. Not ideal for heavy-duty or commercial use.

Should You Buy It

If you need a budget-friendly, direct replacement for a 21" Honda twin-blade mower and your model is listed, this set delivers good value. It’s best for homeowners who mow standard lawns and want a reliable alternative to pricier OEM blades. Avoid if you require commercial-grade durability or a thicker blade for tough conditions.