Oregon 98-066 Mulching Blade, 20"

What It Is

The Oregon 98-066 is a 20-inch mulching blade designed for EGO cordless lawn mowers. It replaces the standard blade to finely chop grass clippings and return nutrients to the lawn, ideal for frequent mowing without bagging.

Fitment & Compatibility

• Deck size: Fits only 20-inch cutting decks. Measure your deck width before buying.
• Model fit: Compatible with EGO models like LM2100, LM2101, LM2102SP, and LM2135SP. Not for older 21-inch or 56V models.
• OEM vs aftermarket: This is an aftermarket replacement for EGO part 292200100. It works as a direct swap, but verify your mower’s blade mount pattern (center hole and pin alignment).
• Measurements: Blade length is exactly 20 inches; center hole diameter is 1 inch with a 5-point star pattern. Check your existing blade for same star pattern—some older EGO models use a different mount.
• Check before buying: Remove your current blade, measure length, and compare the center hole shape. If your mower has a 6-point star or round hole, this blade won’t fit.

Key Things to Know

• Quality: Oregon is a reputable aftermarket brand; blade is made from heat-treated steel with a balanced design. Expect similar lifespan to OEM.
• Installation: Easy DIY—use a socket wrench to remove the center nut. Torque to 35-40 ft-lbs. Ensure the blade is oriented with the cutting edge facing the direction of rotation (usually counterclockwise).
• Gotcha: This is a mulching-only blade. It lacks lift wings for bagging or side discharge. If you switch between modes, you’ll need to swap blades.
• Performance: Produces finer clippings than the stock blade, but may leave clumps in wet grass. Mow when grass is dry.

Should You Buy It

Buy this if you primarily mulch with your 20-inch EGO mower and want a dedicated blade for better clipping breakdown. It’s a solid, affordable upgrade over the stock blade. Skip it if you frequently bag or side-discharge—get a universal blade instead.