Terre Products, Single Mulching Lawn Mower Blade, 21 Inch Deck, Compatible with EGO Power+ 56V Models LM2100, LM2101, LM2100SP, LM2102SP, LM2142SP, Replacement for AB2100, AB2101

What It Is

This is a single 21-inch mulching blade designed for EGO Power+ 56V cordless mowers. It replaces OEM part numbers AB2100 and AB2101, and is intended for use with the LM2100, LM2101, LM2100SP, LM2102SP, and LM2142SP models.

Fitment & Compatibility

• Deck size: Must be exactly 21 inches. Measure your current blade tip-to-tip before ordering.
• Model check: Works only with the listed EGO 56V models. Not compatible with 20-inch or 22-inch EGO decks, or any gas-powered mowers.
• OEM vs aftermarket: This is a third-party blade, not an EGO factory part. Confirm your mower’s blade mount pattern matches the center hole and oval slot design of this blade.
• Measurements: Blade length 21", center hole diameter ~1-1/8", oval slot width ~3/8". Verify these against your current blade.

Key Things to Know

• Quality: Made of heat-treated steel, but some users report it’s slightly thinner than OEM blades. May not last as long in heavy use or rocky soil.
• Installation: Straightforward swap—no special tools beyond a wrench and blade removal tool. Torque to 35-45 ft-lbs (check your manual).
• Mulching performance: Leaves finer clippings than standard blades, but may struggle with wet or tall grass. Works best with dry, frequent cuts.
• Common gotcha: The blade is not universal—double-check the center hole shape and slot alignment. Incorrect fit can cause vibration or damage to the spindle.

Should You Buy It

Buy this if you need a budget-friendly mulching blade for your specific EGO 21-inch model and don’t mind slightly shorter lifespan than OEM. Avoid if you want maximum durability or need a high-lift bagging blade—this is purely for mulching.