72531-VR8-M00&72511-VR8-M00 Lawn Mower Mulching Blade, 21 Inch Replacement Blade Fits Honda HRR216 HRR2169VYA HRR216VKA HRR216k10VKAA HRR216k9VKAA HRN216 HRX217 Series Lawn Mower

What It Is

This is a set of two 21-inch mulching blades (OEM part numbers 72531-VR8-M00 and 72511-VR8-M00) designed for Honda HRR216, HRN216, and HRX217 series lawn mowers. They are intended for mulching—chopping grass clippings into fine particles to return nutrients to the lawn.

Fitment & Compatibility

• Deck size: Fits 21-inch cutting decks only. Measure your blade length from mounting hole center to blade tip; if it’s 21 inches, these will work.
• Models: Confirmed for Honda HRR216 (all sub-models like HRR2169VYA, HRR216VKA, HRR216k10VKAA, HRR216k9VKAA), HRN216, and HRX217 series. Not for older HR214 or HR215 models.
• OEM vs aftermarket: These are genuine Honda parts, not aftermarket. This guarantees exact fit and balanced weight—critical for vibration-free operation.
• Check your current blade: Look at the part number stamped on your existing blade. If it’s 72531-VR8-M00 or 72511-VR8-M00, these are direct replacements. If not, measure the center hole diameter (typically 1 inch) and the blade offset (curvature) to ensure match.

Key Things to Know

• Quality: OEM blades are heat-treated and hardened for durability. They stay sharp longer than generic steel blades and resist bending from rocks or roots.
• Installation difficulty: Easy—you’ll need a socket wrench (usually 13mm or 14mm) and a block of wood to jam the blade. Torque blade bolts to 30-35 ft-lbs. Use blue Loctite on the bolt threads to prevent loosening.
• Common gotcha: Always replace both blades at the same time, even if one looks fine. An unbalanced set causes vibration that can damage the spindle and engine.
• Mulching vs bagging: These are dedicated mulching blades (curved, with more lift). If you switch between mulching and bagging, you’ll need a separate set of bagging blades.

Should You Buy It

If you own a compatible Honda HRR216, HRN216, or HRX217 mower and want OEM reliability, this is the correct choice. It’s priced at a premium over aftermarket blades, but you avoid fitment guesswork and get guaranteed balance—worth it if you value a clean cut and minimal vibration. Skip if you only bag clippings or have a non-Honda deck.