Earthtec 133-8183-03 108-3762-03 Lawn Mower Blades Replacement for Toro Super Recycler 21 Inch Blades 93-4106-03 93-4106 22275 22275T 22282 22282T 21566 21566T 21568 21568T (1 Pcs)

What It Is

This is a replacement blade set for Toro Super Recycler 21-inch walk-behind mowers. It’s designed to mulch grass clippings finely and recirculate them into the lawn, matching the performance of OEM Toro blades 93-4106-03, 93-4106, 22275, 22275T, 22282, 22282T, 21566, 21566T, 21568, and 21568T.

Fitment & Compatibility

Before buying, confirm your mower has a 21-inch cutting deck and uses a single-blade system. This Earthtec blade replaces Toro part numbers 133-8183-03 and 108-3762-03, which fit Toro Super Recycler models with 149cc, 159cc, or 163cc engines (e.g., 20333, 20339, 20340, 20341, 20342, 20343, 20344, 20345, 20353, 20370, 20371, 20378, 20379, 20380, 20381, 20382). Measure your existing blade: length should be ~21 inches, center hole diameter ~1 inch, and offset ~0.5 inches. This is an aftermarket alternative—double-check your model number on the deck sticker or owner’s manual to avoid fitment issues with older or non-Super Recycler Toro models.

Key Things to Know

• Quality: Made from heat-treated steel, comparable to OEM. Sharp out of the box, but edge life depends on lawn debris and frequency of use. Expect 1–2 seasons under normal conditions.
• Installation: Straightforward—use a socket wrench and torque to 55–65 ft-lbs. Blade bolt is reverse-threaded on some Toro models (turn clockwise to loosen). Always disconnect the spark plug first.
• Gotchas: This is a single blade, not a set. If your mower uses two blades (unlikely for 21-inch Super Recycler), this won’t work. Also, the blade’s lift angle is optimized for mulching—not ideal for bagging or side-discharge unless you adjust the mower’s baffle.
• Balance: Check blade balance after installation. An unbalanced blade causes vibration and uneven cut.

Should You Buy It

Buy this if you own a Toro Super Recycler 21-inch mower and need a reliable, affordable replacement for worn-out OEM blades. It’s a solid match for mulching performance, but skip it if you primarily bag or side-discharge, or if your mower isn’t on the compatible model list.