Stens Lower Mulching Blade, Honda 72511-VK6-000, ea, 1

What It Is

The Stens Lower Mulching Blade (Honda 72511-VK6-000) is a replacement blade designed for Honda mower decks that use a two-blade system. It is the lower blade on compatible models, intended for mulching grass clippings into fine particles for nutrient recycling.

Fitment & Compatibility

• OEM cross: Direct replacement for Honda part #72511-VK6-000. Verify your deck uses this specific blade (some Honda decks use a single or upper/lower pair).
• Deck size: Fits 21-inch and 22-inch Honda push mower decks (e.g., HRX217, HRX217HYA, HRX217K5, HRX217K6, HRX217K7, HRX217K8, HRX217K9, HRX217K10, HRX217VKA, HRX217VLA, HRX217HYA, HRX217HZA). Check your model number.
• Measurements: Blade length is approximately 21-1/4 inches (540 mm), center hole diameter is 7/8 inch (22 mm), thickness is 0.125 inch (3.2 mm). Measure your old blade to confirm.
• Mounting: Uses a 5-point star pattern center hole. Requires two blades per deck (upper and lower). This is the lower blade only.
• Aftermarket note: Stens is a reputable aftermarket brand. Quality is comparable to OEM, but always confirm the blade is not bent or warped upon arrival.

Key Things to Know

• Installation: Moderate difficulty. You’ll need a socket wrench and a blade removal tool or block of wood to lock the blade. Torque to 30-40 ft-lbs. Re-torque after first use.
• Mulching vs. bagging: This blade is optimized for mulching, not bagging or side-discharge. If you switch modes, you may need a different blade or adapter.
• Sharpening: Can be sharpened, but due to low cost ($22.59), many users replace rather than sharpen. Never sharpen beyond the original edge profile.
• Common gotcha: The lower blade is shorter than the upper blade on some models. Do not swap positions. Check the blade orientation (cutting edge facing the direction of rotation).

Should You Buy It

If you own a compatible Honda HRX217 series mower and need a reliable, direct-fit lower mulching blade, this Stens replacement is a solid value. It’s slightly cheaper than OEM, with good quality and reviews. Avoid if you need a bagging or high-lift blade, or if your deck uses a different blade configuration.