Oregon 20-7/8" Lawn Mower Blade 653639, Set of 2, Replacement for Honda: 72531-VH7-000, 72511-VL0-S00, 72511-VH7-000

What It Is

This is a set of two 20-7/8" Oregon replacement blades (model 653639) designed for Honda mowers with 21" decks. They’re a direct aftermarket alternative to Honda OEM blades, offering the same cutting width and center hole pattern for mulching or bagging.

Fitment & Compatibility

Before buying, check these three things:

• Deck size: These are 20-7/8" long—they fit 21" Honda decks (not 20" or 22"). Measure your blade tip-to-tip to confirm.
• OEM cross-reference: Replaces Honda part numbers 72531-VH7-000, 72511-VL0-S00, and 72511-VH7-000. If your mower uses any of these, they’ll fit.
• Center hole & drive pin: The center hole is round, 7/8" diameter, with two small drive pin holes (0.28") offset 1.75" from center. This matches most Honda HRX, HRR, and HRS series models. Verify your blade’s drive pin pattern before ordering.

Not compatible with Honda mowers that use a star-shaped or keyed center hole (e.g., some older HR models).

Key Things to Know

• Quality: Oregon is a trusted aftermarket brand—these are heat-treated steel with a hardened edge. Expect similar durability to OEM, often at a lower price.
• Installation: Easy swap with a socket and torque wrench. Tighten blade bolt to 35-40 ft-lbs (Honda spec). Use thread locker if reusing old bolts.
• Balance: Oregon blades are balanced from the factory, but always check balance after sharpening. A small clip-on balancer is cheap insurance.
• Gotcha: These blades are slightly thinner (0.165") than some original Honda blades (0.187"). This can reduce inertia slightly, so they may not cut as aggressively in heavy grass. Fine for normal lawn care.

Should You Buy It

Buy these if you own a compatible Honda 21" mower and want a reliable, budget-friendly replacement pair. They’re ideal for routine blade swaps (every 1-2 seasons) and perform well for mulching and bagging in average conditions. Skip them if you need a thicker blade for heavy-duty mowing or want the exact OEM feel.