Honda 72511-VF9-B02 Blade (3Tx10)

What It Is

The Honda 72511-VF9-B02 is a factory OEM mulching blade designed for select Honda HRX217 series mowers. Its three distinct cutting edges and 10-tooth center hole (3Tx10) are engineered to finely chop grass clippings for nutrient recycling, not for bagging or side-discharge use.

Fitment & Compatibility

Before buying, confirm your mower deck size (typically 21 inches) and exact model number—this blade fits Honda HRX217K4, HRX217K5, HRX217K6, and HRX217K7 VIN-series mowers. It will not fit older HRX217 models with a different blade mount or any non-Honda deck. Check your current blade’s center hole: it must have 10 internal splines (3Tx10 pattern) to match. Using an aftermarket “universal” blade that claims compatibility often requires an adapter ring, which can loosen over time; this OEM blade installs without adapters. Measure your blade length (approx. 21 inches) and ensure your mower’s spindle bolt is 15mm hex.

Key Things to Know

• Quality & wear: Genuine Honda steel holds an edge longer than most aftermarket blades, but it’s not impact-resistant—hitting rocks or roots will chip or bend it.
• Installation difficulty: Easy (one bolt, no special tools), but torque the spindle bolt to 45–55 ft-lbs using a torque wrench to prevent loosening during operation.
• Common gotcha: The mulching blade does not lift clippings well in wet or tall grass—you’ll get clumping. Always mow dry, short grass for best results.
• Sharpening: Can be sharpened 2–3 times before replacement, but must maintain the original 30-degree bevel; excessive grinding throws off balance and causes vibration.

Should You Buy It

If you own a compatible Honda HRX217 and want factory-grade mulching performance with zero fitment fuss, this blade is a reliable choice. It’s not for bagging or rough terrain, but for homeowners who mow regularly and value clean, fine clippings that disappear into the lawn, it delivers.