8TEN LawnRAZOR Blade for Toro 20-Inch Recycler Walk Behind 133-8181-03 112-8841-03 (Toothed)

What It Is

The 8TEN LawnRAZOR toothed blade is a replacement cutting blade designed specifically for Toro 20-inch Recycler walk-behind mowers. Its serrated edge is intended to shred leaves and grass clippings more finely than a standard blade, improving mulching performance.

Fitment & Compatibility

Deck size: 20-inch (verify your mower deck measures exactly 20 inches across).
Model compatibility: Fits Toro Recycler models that use OEM blade part numbers 133-8181-03 or 112-8841-03. Common mower models include 20353, 20354, 20355, and 20370, but always confirm your model number.
Aftermarket vs OEM: This is an aftermarket blade, not Toro-branded. It should match OEM dimensions, but check overall length (measure from tip to tip) and center hole size (usually 1-inch diameter with a 5-point star pattern).
What to check before buying: Remove your current blade and compare:

• Length (must be exactly 20 inches tip-to-tip)
• Center hole shape and diameter
• Thickness (should match OEM, typically ~0.125 inches)
• Your mower model number (stamped on the deck or under the rear flap)

Key Things to Know

• Toothed design cuts finer – the serrated edge helps chop leaves and grass into smaller pieces, reducing clumping and improving mulching.
• Installation is straightforward – uses a standard 15/16-inch or 5/8-inch socket. Torque to 30-40 ft-lbs (check your mower manual). Use a blade removal tool or block the blade with wood for safety.
• Balance is critical – aftermarket blades sometimes arrive slightly off-balance. Test by hanging the blade on a nail or using a balancer. If it tilts, file the heavy end slightly.
• Sharpening tip – the toothed edge makes sharpening more difficult than a straight blade. You may need a file or grinder to maintain the serrations. Many users just replace when dull.

Should You Buy It

Buy this blade if you own a Toro 20-inch Recycler and want improved mulching and leaf shredding without paying OEM prices. It’s a good value for homeowners who bag or mulch frequently and are comfortable with basic blade maintenance. Skip it if you prefer a standard clean-cut blade for bagging or if your mower requires strict OEM-only parts.