AB2101D Lawn Mower Mulching Blade Compatible with LM2133 LM2130 LM2135SP LM2130SP LM2156SP LM2150SP 21 Inch Electric Lawn Mowers 2 Packs (Black)

What It Is

The AB2101D is a pair of 21-inch mulching blades designed for select Greenworks electric lawn mowers. They replace standard discharge or bagging blades to chop clippings finer and return nutrients to the lawn.

Fitment & Compatibility

• Deck size: Fits 21-inch cutting decks only. Measure your blade length—must be exactly 21 inches (center hole to tip).
• Model fit: Compatible with Greenworks models LM2133, LM2130, LM2135SP, LM2130SP, LM2156SP, LM2150SP. Not for other brands or non-21-inch decks.
• OEM vs aftermarket: Aftermarket replacement for Greenworks OEM part #34101442 (or similar). Verify your mower’s blade part number in the manual.
• Measurements: Check center hole diameter (typically 1 inch) and blade thickness (usually 0.1–0.15 inch). Use a ruler or caliper before ordering.

Key Things to Know

• Installation difficulty: Easy—requires a socket wrench (typically 9/16” or 5/8”) and a block of wood to lock the blade. No special tools needed.
• Mulching performance: The curved, high-lift design cuts clippings finer than standard blades. Best for dry, short grass; wet or tall grass may clog.
• Durability: Black-coated steel resists rust, but blades dull faster than premium alloys. Plan to replace every 1–2 seasons or after 25 hours of use.
• Common gotcha: These blades are for mulching only—do not use with a bagging attachment unless you modify the mower’s discharge chute.

Should You Buy It

If you own a compatible Greenworks 21-inch electric mower and want to improve mulching without paying OEM prices, these blades are a solid budget pick. They’re easy to install and deliver decent cut quality for light-to-moderate use. Avoid if you need heavy-duty durability or a universal fit for other brands.