72511-VR8-M00 Bottom Blade and 72531-VR8-M00 Upper Blade Set 08720-VR8-M00 Fit for Hon/da Lawn Mower Blade Kit Compatible HRN216, 2 Pack

What It Is

This 2-pack blade set includes a bottom blade (72511-VR8-M00) and an upper blade (72531-VR8-M00) designed for Honda HRN216 walk-behind mowers. It replaces OEM part 08720-VR8-M00 and is intended for standard residential lawn cutting on medium-duty turf.

Fitment & Compatibility

• Exact fit for: Honda HRN216 models only (not HRX, HRR, or other series). Verify your mower’s model number on the deck or engine shroud.
• Deck size: 21-inch cutting deck. Measure your blade length – OEM blades are 21 inches overall, with a 1-inch center hole and 3.5-inch blade span.
• OEM reference: Replaces Honda part 08720-VR8-M00 (set). The bottom blade (72511-VR8-M00) is the lower, angled cutting edge; the upper blade (72531-VR8-M00) is the flat top blade. Both must be installed together.
• Check before buying: Ensure your deck has a two-blade system (some HRN216 models use a single blade). Also confirm your mower’s blade bolt size is 5/16-inch with a 1-inch shoulder.

Key Things to Know

• Quality: Aftermarket set at a budget price. Expect adequate sharpness out of the box, but steel hardness may be lower than OEM – resharpening may be needed sooner.
• Installation: Moderate difficulty. You’ll need a socket wrench and blade removal tool (or block the blade). Torque bolts to 40-50 ft-lbs. The upper blade mounts on top of the lower blade, with the sharp edge facing forward.
• Common gotchas: The blade set is sold as a pair – don’t mix with single-blade decks. Also, verify the blade orientation: the bottom blade’s cutting edge angles downward, the upper blade is flat. Wrong installation causes poor cut and vibration.
• Balance: Aftermarket blades often need balancing before install. Use a blade balancer – an unbalanced set will damage the spindle.

Should You Buy It

If you own a Honda HRN216 and need a low-cost replacement for basic mowing, this set works. But for tougher grass or longer life, spend more on OEM Honda blades – the aftermarket steel wears faster and may require frequent sharpening.