Lawn Mower Blade for Greenworks 20 inch Mower 33307486 33308486 25302

What It Is

This is a replacement blade for Greenworks 20-inch electric lawn mowers, designed to cut grass efficiently on residential lawns. It fits models that use OEM part numbers 33307486, 33308486, or 25302.

Fitment & Compatibility

Before buying, check these three things:

• Deck size: Only fits Greenworks mowers with a 20-inch cutting deck. Measure your deck width to confirm.
• Model number: Verify your mower’s model number (e.g., 25302) matches one listed. Common compatible models include the 20-inch corded (like 25302) and battery-powered (like 33307486/33308486) versions.
• OEM vs aftermarket: This is an OEM Greenworks blade, so it’s a direct fit—no adapter or modification needed. Aftermarket blades may vary in hole pattern or thickness.

Also check blade length (20 inches) and center hole diameter (typically 1 inch)—measure your old blade if unsure.

Key Things to Know

• Quality: Made of stamped steel with a durable coating; sharpens easily but may dull faster on sandy soil.
• Installation difficulty: Easy—requires only a socket wrench (usually 5/8 inch). Torque the bolt to 30-40 ft-lbs; over-tightening can strip threads.
• Common gotcha: The blade is symmetrical (not mulching-specific), so it works for side-discharge or bagging, but won’t give fine mulch. Ensure the blade is oriented with the cutting edge facing the direction of rotation (usually counterclockwise when viewed from above).
• Replacement interval: Replace every 1-2 seasons or after hitting a rock; inspect monthly for bends or nicks.

Should You Buy It

Buy this if you own a Greenworks 20-inch mower and need a direct OEM replacement that’s reliable and easy to install. It’s ideal for standard cutting tasks, but skip it if you want a mulching blade (look for a “mulching” version) or need a blade for a different deck size.