KOLTRUNEX lawn mower blade 19-21 inch with round center hole for precise fit and durable cutting.
KOLTRUNEX blade compatible with Ryobi 40V models for clean, efficient turf maintenance.
KOLTRUNEX hardened steel blade provides long-term strength for tough mowing tasks.
KOLTRUNEX black powder coated blade offers corrosion resistance against the elements.
KOLTRUNEX mulching blade finely minces clippings to nourish your lawn.
KOLTRUNEX 2-pack includes blades and nuts for quick replacement.
KOLTRUNEX blade features round center hole design for proper alignment.
KOLTRUNEX blade dimensions 19.21 inches long with precise thickness.
KOLTRUNEX note on coating wear and normal use behavior.

KOLTRUNEX

KOLTRUNEX Lawn Mower Blade 19.21 inch Replacement for Ryobi 40V 20-Inch Mower RY401011/RY401012/RY40108/RY40109 - 2 Pack

High-performance patio lawn and garden made for confident daily results

$56.41

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Why customers choose PatioZora Garden

Revitalize your Ryobi 40V mowing task with a proven blade upgrade

The KOLTRUNEX 19.21-inch lawn mower blade is a purpose-built replacement for Ryobi 40V 20-inch decks. It fits RY401011, RY401012, RY40108, and RY40109, substituting OEM parts 682162001, 635373001 (635373), and AC04020. A note for shoppers: this blade is not designed to fit AC04029. Before you order, compare your original blade’s dimensions to ensure a precise match and a smooth installation.

Durability is at the core of this blade. It’s crafted from hardened, heat-treated steel to stand up to demanding cutting sessions and keep a clean edge. A premium black powder coating adds a corrosion-resistant shield, helping it withstand seasonal exposure and outdoor elements while you work.

Mulching performance that supports a healthier lawn

Designed for optimized mulching, the blade finely mince clippings to return nutrients to the soil. The precision-ground edge supports steady airflow and can contribute to consistent cutting efficiency, potentially helping you get more from each battery charge when you mow.

What you get and how to choose

  • Includes 2 blades and 2 nuts for a complete replacement.
  • Dimensions: 19.21 inches in length, 1.97 inches in width, 0.100 inches in thickness with a round center hole.
  • Note: The blades arrive sharpened with a black surface coating; the coating may gradually wear off with use, which does not affect normal operation.

Installation tips and care

  • Verify your original blade dimensions before ordering to ensure a proper fit.
  • Handle blades safely during installation and store them in a secure location when not in use.
  • Keep the mower deck clean and inspect the blade periodically to maintain mulching performance.

With two blades and matching nuts, you can refresh your mowing setup and get back to maintaining a neat, even lawn. The combination of hardened steel, a robust coating, and mulching-focused design offers a practical upgrade for many Ryobi 40V users seeking reliable, anytime-ready performance.

FAQ

Q: Is this blade compatible with Ryobi 40V 20-inch mowers?

A: Yes. It fits Ryobi 40V 20-inch mowers RY401011, RY401012, RY40108, and RY40109, replacing OEM numbers 682162001, 635373001, and AC04020.

Q: What’s included when I buy this blade set?

A: Two blades and two nuts are included for a complete blade refresh.

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