Set of 3 Oregon 596-615 Gator Mulching Small Engine Mower Blades

What It Is

This is a set of three Oregon Gator mulching blades (model 596-615) designed for 21-inch EGO cordless lawn mowers. They replace the stock blades with a serrated, multi-surface cutting edge that chops grass clippings finer for better mulching and leaf shredding.

Fitment & Compatibility

Before buying, confirm your mower has a 21-inch cutting deck—most EGO models (e.g., LM2100, LM2101, LM2102SP, LM2135SP) use three blades, but some 20-inch or 56V models may differ. Measure your existing blade’s length, center hole size (typically 1-inch diameter), and thickness. Oregon 596-615 blades are aftermarket replacements for OEM EGO part numbers 2822911001, 2822912001, or 2822913001. They will not fit single-blade or 18-inch decks. Check your mower’s manual or remove one blade to verify the three-hole pattern and offset.

Key Things to Know

• Mulching performance: The Gator design has a wave-like, serrated edge that cuts grass multiple times per pass, reducing clumping. Expect better mulching than stock EGO blades, especially in tall or damp grass.
• Installation difficulty: Easy—requires a socket wrench (typically 13mm or 15mm) and a block of wood to prevent blade spin. Torque bolts to 35-40 ft-lbs. No special tools needed.
• Lifespan: These blades last about 25–50 hours of mowing, depending on debris and grass type. Sharpen or replace sooner if you hit rocks or roots.
• Common gotcha: The set includes three blades, but some EGO models use two blades (check your deck). Also, the blades are slightly heavier than OEM, which may slightly reduce runtime on a single charge.

Should You Buy It

Buy these if you want noticeably finer mulching and better leaf shredding from your 21-inch EGO mower, especially if you mow frequently or have thick grass. They’re a solid upgrade over stock blades for the price, but skip them if you bag clippings or prefer a lighter blade for maximum battery life.