Lawn Mower Blade for EGO 3708426001 AB2102 21 Inch LM2110, LM2110-FC, LM2110SP, LM2110SP-FC, LM2120SP, LM2120SP-FC

What It Is

This is a replacement 21-inch high-lift blade for EGO’s 56V cordless lawn mowers, designed to improve grass clipping discharge and bagging performance. It’s intended for use on residential lawns with standard turf.

Fitment & Compatibility

Before buying, confirm your mower model is one of these: LM2110, LM2110-FC, LM2110SP, LM2110SP-FC, LM2120SP, or LM2120SP-FC. The blade measures exactly 21 inches tip-to-tip, with a 1-inch center hole and a 0.5-inch offset. It replaces EGO OEM part number 3708426001 (also listed as AB2102). Not compatible with EGO 20-inch or 22-inch models, or any non-EGO mower. Always verify the blade’s mounting pattern—this uses a single center bolt, not a star or multi-hole pattern.

Key Things to Know

• Quality: OEM-grade steel with a durable coating; resists bending better than some aftermarket knockoffs. Sharp out of the box.
• Installation: Easy—requires a 15mm socket or wrench. Torque the center bolt to 40–50 ft-lbs. Use a blade stop or wedge to prevent spinning.
• Gotcha: This is a high-lift blade; it increases battery drain slightly compared to a standard low-lift blade, especially in tall or damp grass. Not ideal for mulching—use a dedicated mulching blade if that’s your primary mode.
• Balance: Always check blade balance after installation. An unbalanced blade causes vibration and can damage the spindle.

Should You Buy It

Buy this if your EGO 21-inch mower needs a direct OEM replacement for better discharge or bagging, and you’re willing to accept slightly shorter run time per charge. Skip it if you mulch exclusively or have a different EGO deck size.