72531-VH7-000 & 72511-VH7-000 Mulching Blades Kit Compatible with Honda HRX217 HRX217K1 HRX217K2 HRX217K3 HRX217K4 for 21" Deck Lawn Mowers，2 Pack

What It Is

This is a genuine Honda mulching blade kit (part numbers 72531-VH7-000 and 72511-VH7-000) designed for the HRX217 series mowers. It replaces the standard discharge blades to finely chop grass clippings for nutrient-rich mulching, ideal for users who want to skip bagging.

Fitment & Compatibility

Before buying, confirm your mower has a 21-inch cutting deck and is one of these Honda HRX217 models: K1, K2, K3, K4, or any HRX217 variant. This kit includes two blades (left and right) and is OEM Honda, not aftermarket—so fitment is guaranteed for compatible machines. Measure your existing blade length (should be ~21 inches) and check the center hole diameter (typically 1 inch). Do not use on non-Honda decks or smaller/larger decks without verifying bolt pattern and offset.

Key Things to Know

• Installation: Moderate difficulty. You’ll need a socket wrench and a blade removal tool (or a block of wood to prevent spinning). Torque blade bolts to 40-50 ft-lbs.
• Mulching performance: Works best with the Honda mulching plug installed (sold separately if not included). Expect finer clippings and less bagging frequency.
• Durability: OEM blades hold an edge longer than most aftermarket options, but they dull faster in sandy soil or thick, wet grass. Sharpen or replace annually.
• Common gotcha: The blade orientation matters—the curved side faces up toward the deck. Installing backward will reduce lift and mulching quality.

Should You Buy It

Buy this kit if you own a Honda HRX217 with a 21-inch deck and want genuine OEM mulching blades that deliver consistent, fine clippings without bagging. It’s a solid upgrade for lawn health and convenience, especially if you prefer a clean, manicured look. Skip it if you need a universal blade or have a non-Honda mower.