72511-VR8-M00&72531-VR8-M00 Mulching Blades Kit Compatible with Hon-da HRN216VKA HRN216PKA 21" Microcut Twin Blade Kit with Air Filter 17211-Z8B-901,Spark Plug,Bolts and Spacer

What It Is

This kit provides two mulching blades (part #72511-VR8-M00 and 72531-VR8-M00) designed for Honda HRN216VKA and HRN216PKA 21" walk-behind mowers, plus an air filter (17211-Z8B-901), spark plug, bolts, and spacer. It’s intended for users wanting a complete tune-up with enhanced mulching performance.

Fitment & Compatibility

• Deck size: 21-inch – measure your mower deck width to confirm.
• Model fit: Listed for Honda HRN216VKA and HRN216PKA only. Not compatible with other Honda series (e.g., HRX, HRC) without checking blade shape and spindle.
• OEM vs aftermarket: These are aftermarket replacements for Honda OEM parts. Verify your mower uses the “Microcut” twin-blade system (two small blades offset on one spindle).
• Physical checks: Measure blade length (approx. 11.5" each), center hole diameter (typically 20mm), and bolt thread size (M8x1.25). The included bolts and spacer should match, but compare with your existing hardware.

Key Things to Know

• Quality & durability: 4.3-star rating from 11 reviews suggests decent build, but some users report blades dull faster than OEM Honda blades. Expect to sharpen more frequently.
• Installation difficulty: Easy – remove old blades, install spacer (if needed), then new blades with included bolts. Torque bolts to 35–45 ft-lbs. The air filter and spark plug are straightforward swaps.
• Common gotcha: The “Microcut” twin-blade system requires the blades to be installed in the correct orientation (cutting edge facing deck). Reversing them will reduce mulching and may cause vibration.
• Complete kit value: Includes air filter and spark plug, which saves separate purchases, but verify the spark plug gap (usually 0.028–0.031") before installing.

Should You Buy It

Buy this kit if you own a Honda HRN216VKA or HRN216PKA and want a budget-friendly tune-up with decent mulching capability. It’s a good value for the price, but if you prioritize long blade life and OEM fit, stick with genuine Honda blades and buy the filter/plug separately.