72531-VH7-000 and 72511-VH7-000 Replacement Blade Kit for Honda Mowers HRX217, HRX217K1, HRX217K2, HRX217K3, HRX217K4 (2 Blades)

What It Is

This is an OEM Honda replacement blade kit (two blades) designed specifically for select HRX217-series mowers. It includes the two distinct blades required for Honda’s MicroCut twin-blade system, which provides finer clipping and better mulching than a single blade.

Fitment & Compatibility

• Exact models: HRX217, HRX217K1, HRX217K2, HRX217K3, HRX217K4 (check your model number on the mower deck or under the seat).
• Deck size: Fits 21-inch cutting decks only. Do not use on 20-inch or 22-inch Honda decks.
• OEM vs aftermarket: These are genuine Honda parts (part numbers 72531-VH7-000 and 72511-VH7-000). Aftermarket copies may not match the blade profile or balance, which can reduce mulching performance.
• Measurement check: Each blade is about 21 inches long (tip to tip) with a center hole diameter of 1 inch and a 5-point star drive pattern. Measure your old blades to confirm.
• Not compatible with: HRX217HYA, HRX217HMA, or any Honda mower with a different model prefix (e.g., HRX216, HRX218).

Key Things to Know

• Installation difficulty: Moderate. You’ll need a socket wrench and a torque wrench (recommended 30-40 ft-lbs). The star drive pattern can be tricky to align; take note of blade orientation before removal.
• Mulching vs bagging: These blades are optimized for mulching. If you primarily bag or side-discharge, they still work fine but won’t offer the same lift as dedicated bagging blades.
• Balance check: Always test blade balance after sharpening or replacement. An unbalanced blade causes vibration and poor cut quality. A simple blade balancer tool costs under $10.
• Common gotcha: The two blades are different (one is slightly curved, one is flatter). Do not mix them up—install the rearmost blade as the curved one for proper airflow.

Should You Buy It

Yes, if you own one of the listed HRX217 models and want guaranteed OEM fit, consistent mulching performance, and long blade life. It’s a fair price for a two-blade set that Honda engineered specifically for that deck. If you have a different HRX217 variant or want cheaper aftermarket options, skip it—but expect reduced cut quality.