8TEN LawnRAZOR Blade for Toro 21-Inch Recycler Walk Behind Mower 133-8182-03 (Toothed)

What It Is

The 8TEN LawnRAZOR Blade is a toothed replacement blade designed for Toro 21-inch Recycler walk-behind mowers. It uses a serrated cutting edge to mulch leaves and grass more aggressively than a standard blade, making it ideal for heavy mulching or fall leaf cleanup.

Fitment & Compatibility

• Deck size: Fits only 21-inch Toro Recycler decks.
• OEM cross-reference: Replaces Toro part number 133-8182-03 (factory toothed blade).
• Model check: Compatible with most Toro Recycler models from 2008 onward, including 20330, 20331, 20332, 20333, 20334, 20339, 20340, 20341, 20342, and others. Verify your deck’s blade bolt pattern (center hole diameter is 1 inch, with a 5-point star drive).
• Measurement: Blade length is 21 inches, width 2.5 inches, thickness 0.1875 inches. Measure your old blade to confirm.
• Important: Not for standard Toro Super Recycler or non-Recycler models. Not for 22-inch decks.

Key Things to Know

• Installation: Moderate difficulty. You’ll need a socket wrench with a Torx T-40 bit or an 11/16-inch socket for the blade bolt. Torque to 60-80 ft-lbs.
• Sharpness: Serrated edge arrives sharp but may require re-sharpening after heavy use. A file or grinder works, but the toothed profile is harder to sharpen than straight blades.
• Balance: Always balance the blade after sharpening or installing. An unbalanced blade causes vibration and can damage the spindle.
• Mulching performance: The toothed edge produces finer clippings than standard blades, but it creates more noise and slightly more drag on the engine.

Should You Buy It

Buy this blade if you own a 21-inch Toro Recycler mower and want superior mulching for leaves or thick grass. It’s a well-made aftermarket alternative to OEM at a lower price, with strong user reviews. Skip it if you bag or side-discharge often—a standard blade will be quieter and more efficient for those tasks.