Ryobi OEM 6112101 replacement clamp outer blade

What It Is

The Ryobi OEM 6112101 is a replacement clamp outer blade designed for use on select Ryobi 40V and 18V cordless lawn mowers. It secures the mower blade to the spindle and is critical for proper blade retention and safe operation.

Fitment & Compatibility

• Deck size: Fits Ryobi mowers with 20" and 21" cutting decks (check your model number).
• Model compatibility: Works with Ryobi 40V models (e.g., RY40180, RY40190) and some 18V models (e.g., RY40110). Not universal—verify your mower’s model number.
• OEM vs aftermarket: This is an OEM Ryobi part, ensuring exact fit and material specs. Aftermarket clamps may differ in thickness or hole diameter, risking blade wobble.
• Measurements: Outer clamp outer diameter ~1.5", center hole ~0.5". Measure your old clamp and compare before buying.

Key Things to Know

• Quality: OEM part, so consistent hardness and thread fit—no cheap plastic or misaligned holes.
• Installation difficulty: Easy—remove blade bolt, swap clamp, re-torque to 30-40 ft-lbs. Use a torque wrench to avoid overtightening.
• Common gotchas: The clamp is directional; the flat side faces the blade, the raised rim faces the spindle. Installing it backwards can cause blade vibration and damage.
• Wear: Replace if the clamp is bent, cracked, or shows wear from previous blade changes. A damaged clamp can lead to blade detachment.

Should You Buy It

If you own a compatible Ryobi cordless mower and need a direct, no-guess replacement for a worn or lost outer blade clamp, this is the right part. It’s cheap, easy to install, and ensures proper blade retention. Skip it if you have a different brand or need an inner washer instead.