Toro Genuine OEM Blade 4-Pack of 133-8183-03 Blades for 21" Super Recycler Lawn Mower Replaces 108-3762-03 22275 22275T 22282 22282T 21566 21566T 21568 21568T (4)

What It Is

This is a 4-pack of Toro genuine OEM blades (part #133-8183-03) designed exclusively for Toro 21" Super Recycler lawn mowers. They are the direct replacement for the factory-installed blades and are intended for residential mulching and bagging on standard 21-inch walk-behind mowers.

Fitment & Compatibility

Check your deck size: Must be a 21-inch cutting deck. These will not fit 22" or larger decks.

Model compatibility: Fits Toro Super Recycler models that originally used blades 108-3762-03, 22275, 22275T, 22282, 22282T, 21566, 21566T, 21568, or 21568T. Verify your mower’s model number (on the deck or under the seat) against these numbers.

OEM vs aftermarket: This is genuine Toro, not a third-party blade. Aftermarket blades may be cheaper but often have different balance or thickness. If you want exact factory fit, stick with OEM.

Measurements: Each blade is ~21" long, with a 1" center hole and a 5-point star drive pattern. Measure your old blade’s length and hole pattern if unsure.

Key Things to Know

• Quality: Made from heat-treated steel with a hardened edge. Expect longer life than most aftermarket blades, but still replace every 25-50 hours of use or when nicked/dull.
• Installation: Moderate difficulty. You’ll need a socket wrench and possibly a torque wrench (tighten to 55-65 ft-lbs). Use a blade stop or block the blade to prevent rotation. Wear gloves—edges are sharp.
• Common gotchas: The star drive pattern fits only Toro’s specific spindle—won’t work on standard round-hole spindles. Also, these are “mulching” blades with a curved shape—do not use for side-discharge only mowers.
• 4-pack value: Buying a 4-pack is cheaper per blade than singles. If you mow frequently, this covers a full season or two.

Should You Buy It

If you own a Toro 21" Super Recycler and want guaranteed fit, consistent performance, and longer blade life, this 4-pack is a solid investment. It’s not for budget shoppers or those with different deck sizes, but for owners of compatible models, it’s the right choice for reliable mulching and bagging.