108-3762-03 Lawn Mower Blade Replaces for Toro 133-8183-03 Blade Fits for 21 in Super Recycler Mower 22275 22275T 22282 22282T 21566 21566T 21568 21568T (1 PC) (1, Black)

What It Is

This is a direct-replacement mulching blade for Toro 21-inch Super Recycler walk-behind mowers. It is designed to cut grass and recirculate clippings for fine mulching, making it ideal for homeowners with medium to large lawns who want to leave clippings on the turf.

Fitment & Compatibility

• Deck size: 21 inches (must match your mower’s cutting deck).
• Model compatibility: Fits Toro Super Recycler models 22275, 22275T, 22282, 22282T, 21566, 21566T, 21568, and 21568T. Also replaces OEM part number 133-8183-03 (OEM blade) and aftermarket 108-3762-03.
• Measurements: Blade length is 21 inches; center hole diameter is standard Toro (check your spindle bolt size—typically 5/8″ or 3/4″). Thickness is about 0.125″.
• What to check before buying: Confirm your mower’s model number (on the deck or engine cowl). Verify the blade’s center hole fits your spindle’s bolt. If you have a different Toro 21″ model, cross-reference with the OEM part number.

Key Things to Know

• Quality: Aftermarket blade, but matches OEM specs. Black coating resists rust and wear. Expect similar life to OEM (20–30 hours of cutting, depending on conditions).
• Installation: Moderate difficulty. Requires a socket or wrench to remove the blade bolt. Use a blade removal tool or block the blade with wood to prevent spinning. Torque bolt to 55–65 ft-lbs (check your manual).
• Gotchas: Only one blade per purchase—if you need both blades for a twin-blade Super Recycler, buy two. The blade is directional; the “this side down” stamp must face the ground. Sharpening is possible but shortens life; replacing is easier.
• Balance: Blade comes pre-balanced, but check it on a balancer before installing. An unbalanced blade causes vibration and poor cut.

Should You Buy It

Buy this if you own one of the listed Toro Super Recycler models and want an affordable, direct-fit replacement that performs like OEM. It’s a solid choice for routine blade swaps—just verify your model number and buy two if your deck uses dual blades. Avoid if you need a high-lift bagging blade or a different brand/deck size.