16-Inch Lawn Mower Blade, for Ryobi RY40112A, RY40140, RY40100, Efficient Cutting & Fine Mulching - 4 Pack

What It Is

This is a 4-pack of 16-inch replacement lawn mower blades designed for efficient cutting and fine mulching. It’s intended for Ryobi electric mowers, specifically models RY40112A, RY40140, and RY40100.

Fitment & Compatibility

• Deck size: Blade length is 16 inches; verify your mower deck accepts this length (most Ryobi 40V models do).
• Model check: Direct fit for Ryobi RY40112A, RY40140, and RY40100. Not compatible with other Ryobi 16-inch models unless cross-referenced.
• OEM vs aftermarket: These are Ryobi-branded blades, so they match OEM specs for hole pattern (usually a 5-point star center hole) and thickness.
• Measure before buying: Confirm blade length (center hole to tip) and center hole shape. Ryobi uses a specific star pattern—non-OEM blades with a different hole won’t fit.
• Universal?: No. Do not assume fit on other brands (e.g., Greenworks, EGO) without checking deck and hole pattern.

Key Things to Know

• Mulching performance: The curved design and sharpened edges improve mulching over standard blades, but fine mulching still depends on mower speed and grass condition.
• Installation: Easy for DIYers—requires a socket wrench and blade removal tool (or block of wood to prevent spinning). Torque bolts to 35-40 ft-lbs.
• Common gotcha: These blades are 16 inches, not 18 or 20. Double-check your current blade’s length—many Ryobi models use 20-inch blades.
• Durability: Steel construction holds up to normal use, but hitting rocks or stumps can bend or dull them quickly. Inspect after each season.

Should You Buy It

If you own a Ryobi RY40112A, RY40140, or RY40100 and want a quick, matched replacement set with solid mulching capability, this 4-pack is a good value. It’s not a universal blade—skip it if your mower model isn’t listed or you need a different length. Best for routine swaps or keeping spares on hand.