40V MOWER 20" ACCESSORY BLADE

What It Is

This is a 20-inch accessory blade designed for 40V battery-powered lawn mowers, intended for mulching, bagging, or standard cutting. It’s a replacement or spare blade for compatible electric mowers with a 20-inch cutting deck.

Fitment & Compatibility

Before buying, confirm that your mower has a 20-inch cutting deck—measure the deck width if unsure. This blade is an aftermarket accessory, not OEM, so check your mower’s brand and model number. It fits most 40V mowers from brands like Greenworks, Kobalt, or Ryobi that use a 20-inch blade with a center hole diameter of 1 inch (or 25.4 mm) and a standard 5-point star or oval mounting pattern. Measure your current blade’s length, hole size, and shape—if it’s a different pattern (e.g., 6-point star), this won’t work. Also verify the blade’s thickness (typically 0.1–0.15 inches) matches your mower’s spindle.

Key Things to Know

• Quality vs. OEM: At $29.67, it’s priced lower than many OEM blades. Expect decent steel but possibly less balanced or durable than brand-name originals. Check reviews for warping or dulling after a few uses.
• Installation Difficulty: Easy for DIYers—use a socket wrench to remove the center bolt, replace the blade, and tighten to manufacturer torque specs (usually 30–40 ft-lbs). Wear gloves; blades are sharp.
• Common Gotchas: This blade may not include a washer or adapter—reuse your old hardware. If your mower uses a specific blade adapter (e.g., for mulching plugs), confirm it fits. Also, 40V mowers often have a smaller blade offset (lift) than gas models, so performance on thick grass may be lower.
• Cutting Performance: Likely fine for typical residential lawns. If you need aggressive mulching or bagging, an OEM blade with optimized lift and serrations might be better.

Should You Buy It

Buy this if you have a 40V mower with a 20-inch deck and need a budget-friendly replacement blade for occasional use, especially if you’re comfortable with basic installation and don’t expect premium durability. Skip it if you require exact OEM fitment, heavy-duty cutting, or have a mower with a non-standard mounting pattern—stick with the manufacturer’s blade for reliability.