108-9764-03 Mulching Mower Blades for 104-8697-03 108-9764-02P 131-4546-03 131-4547-03 Toro 22'' Recycler Compatible with 20333 20016 20017 20331 20332 21445 21465

What It Is

This is a set of mulching blades designed for Toro 22-inch Recycler walk-behind mowers. They replace OEM part numbers 108-9764-03, 104-8697-03, 108-9764-02P, 131-4546-03, and 131-4547-03, and fit a range of Toro models including the 20333, 20016, 20017, 20331, 20332, 21445, and 21465.

Fitment & Compatibility

Before buying, confirm your mower has a 22-inch cutting deck—this blade set will not fit 21-inch or larger decks. Check your mower’s model number (stamped on the deck or under the rear flap) against the listed compatible models: 20333, 20016, 20017, 20331, 20332, 21445, 21465. These are aftermarket blades, not OEM Toro, so verify the center hole diameter (typically 1-inch for these models) and blade length (22 inches). Measure your existing blade’s length, center hole, and offset to ensure a match. If your mower uses a different blade pattern (e.g., for bagging or side-discharge), these will not work.

Key Things to Know

• Mulching performance: The curved, high-lift design chops clippings finer than standard blades, reducing the need for bagging. Works best with dry grass; wet grass may clump.
• Installation: Requires a socket wrench (usually 15/16-inch or 5/8-inch) and a blade removal tool or block of wood to prevent spinning. Torque to 50-60 ft-lbs. Left-hand threads on some models—check your manual.
• Durability: Aftermarket steel is generally good but may dull faster than OEM Toro blades. Inspect after 25 hours of use for nicks or bending. Replace in sets for balance.
• Common gotcha: These blades are sold as a set of two (one for each spindle on some models). Verify your mower uses two blades—most Toro 22-inch Recyclers do, but some older models use a single blade.

Should You Buy It

Buy these if you need an affordable, direct-fit mulching blade for your Toro 22-inch Recycler and want better clipping shredding than standard blades. They’re a solid value for DIYers who mulch regularly, but if you prioritize OEM longevity or have a non-compatible model, stick with genuine Toro parts.